Ultrasonic vacuum device

Abstract

The utility model discloses an ultrasonic vacuum device, and belongs to the technical field of experimental apparatuses. The device comprises a degassing assembly which comprises a vacuum device provided with a connecting pipe; the ultrasonic assembly comprises an ultrasonic device arranged on the outer side of the vacuum device; a sealing cover is arranged at the top of the ultrasonic device; the other end of the connecting pipe is connected with the ultrasonic device, and the connecting pipe is communicated with the treatment chamber. The processing chamber of the novel ultrasonic device is connected with the vacuum device through the connecting pipe, after the sealing cover is tightly covered, the operation of the ultrasonic device and the vacuum device is controlled, gas dissolved in a solution in a sample container in the processing chamber escapes under negative pressure through ultrasound, and the gas is pumped out through the vacuum device; therefore, a plurality of sample containers with different specifications can be placed in the treatment chamber in batches and are subjected to degassing treatment, so that the degassing efficiency is improved; and solution pollution possibly caused when a sealing plug used in traditional degassing is used for sealing a sample container can be avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of experimental instruments, and in particular relates to an ultrasonic vacuum device. Background Art

[0002] Bubbles exist in large quantities in solutions, such as oxygen, carbon dioxide and other gases. Although most bubbles are difficult to see with the naked eye, when the pressure changes, the tiny bubbles will grow larger and larger, thus affecting the experimental results of the solution.

[0003] During the flow injection instrument detection process, if there are bubbles in the solution, it will affect the absorbance of the solution, and thus affect the accuracy of the experimental results. In liquid chromatography, including ion chromatography, when there are bubbles in the mobile phase, it will affect the service life of the chromatographic analysis column and directly affect the retention time of the substance, resulting in inaccurate qualitative results of the substance.

[0004] In the existing solution degassing treatment, a water circulation vacuum pump and an ultrasonic device are used, but the existing water circulation vacuum pump is double-channel and has only two exhaust ports. When in use, a rubber stopper needs to be plugged at the mouth of the sample bottle, which causes the following problems: only two samples can be degassed at a time, and when a large number of samples are processed, it needs to be repeated many times, and the degassing time is long; after the degassing is completed, if the sample bottle is not balanced with the atmospheric pressure in time, the solution in the water pump will be pressed into the sample bottle, contaminating the sample solution; if the rubber stopper is not cleaned properly after use, it may cause sample contamination; the size of the rubber stopper is fixed, and when the mouth of the sample bottle is small or large, the rubber stopper needs to be replaced, which is cumbersome and time-consuming. Utility Model Content

[0005] The utility model provides an ultrasonic vacuum device to solve the above technical problems. In order to solve the above technical problems, the utility model adopts the following technical solutions:

[0006] An ultrasonic vacuum device, comprising:

[0007] A degassing assembly including a vacuum device provided with a connecting pipe;

[0008] The ultrasonic assembly comprises an ultrasonic device arranged outside the vacuum device; the ultrasonic device is provided with a processing chamber inside and a sealing cover on the top;

[0009] The other end of the connecting tube is connected to the ultrasonic device, and the connecting tube is connected to the processing chamber.

[0010] Furthermore, the ultrasonic component also includes a drain port arranged on a side of the ultrasonic device, and the drain port is connected to the processing chamber.

[0011] Furthermore, the device also includes: a clamping assembly, including a clamping piece arranged on the side wall of the processing chamber, and the clamping piece is provided with a clamping hole for clamping the sample container to be processed.

[0012] Furthermore, clamping blocks are provided on both sides of the clamping hole, and the diameter of the clamping hole can be enlarged by stretching the clamping blocks in reverse directions.

[0013] Furthermore, both ends of the clamping member are detachably mounted on the inner wall of the processing chamber. Furthermore, the degassing assembly further comprises: a pipe valve mounted on the connecting pipe; a balancing valve mounted on the connecting pipe, and the balancing valve is disposed between the pipe valve and the ultrasonic device.

[0014] Furthermore, the device also includes: a controller, which is arranged outside the ultrasonic device and is electrically connected to the vacuum device and the ultrasonic device respectively.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. The processing chamber of the novel ultrasonic device is connected to the vacuum device through a connecting pipe. After the sealing cover is closed, the ultrasonic device and the vacuum device are controlled to operate. Ultrasound under negative pressure causes the gas dissolved in the solution in the sample container in the processing chamber to escape, and the gas is extracted through the vacuum device. In this way, a plurality of sample containers of different specifications can be placed in the processing chamber in batches and degassed, thereby improving the degassing efficiency. Moreover, the solution contamination that may be caused when the sealing plug used for traditional degassing is used to seal the sample container can be avoided.

[0017] 2. During the degassing treatment, multiple sample containers to be treated are placed in the treatment chamber for ultrasonic degassing. In order to avoid knocking over the sample containers, a clamping assembly is provided. When in use, the clamping block is stretched to a suitable position, and the length of the sample container is placed in the clamping hole and clamped, thereby playing a fixing role and preventing accidental knocking that may cause the solution to tip over, resulting in sample loss or contamination.

[0018] 3. When the sample solution contains a lot of gas, the solution may flow into the processing chamber due to the large amount of gas escaping. In order to avoid the accumulation of overflowed solution in the processing chamber, a drain port is set. After the sample is processed, the solution in the processing chamber can be discharged from the drain port; in addition, when cleaning the processing chamber, the cleaned solution can also be discharged from the drain port.

[0019] 4. The controller is connected to the vacuum device and ultrasonic device, which can control the start and stop and improve the convenience of operation. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the utility model, the drawings required for use in the embodiments will be briefly introduced below. It should be understood that the following drawings only show certain embodiments of the utility model and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without paying creative work.

[0021] Figure 1 It is a structural schematic diagram of the utility model.

[0022] Figure 2 It is a schematic diagram of the appearance of the utility model.

[0023] Figure 3 A top view of the clamping assembly.

[0024] Figure markings: 1-degassing assembly, 11-vacuum device, 12-connecting pipe, 13-tube valve, 14-balancing valve, 2-ultrasonic assembly, 21-ultrasonic device, 22-processing chamber, 23-sealing cover, 24-drain port, 3-clamping assembly, 31-clamping piece, 32-clamping hole, 33-clamping block, 4-controller. DETAILED DESCRIPTION

[0025] In order to facilitate a better understanding of the present invention, the following examples are used to illustrate the present invention in conjunction with the accompanying drawings. These examples belong to the protection scope of the present invention, but do not limit the protection scope of the present invention.

[0026] Example 1

[0027] An ultrasonic vacuum device, such as Figure 1-Figure 2 As shown, including:

[0028] The degassing assembly 1 comprises a vacuum device 11 provided with a connecting pipe 12;

[0029] The ultrasonic assembly 2 includes an ultrasonic device 21 disposed outside the vacuum device 11; a processing chamber 22 is disposed inside the ultrasonic device 21, and a sealing cover 23 is disposed on the top;

[0030] The other end of the connecting tube 12 is connected to the ultrasonic device 21 , and the connecting tube 12 is connected to the processing chamber 22 .

[0031] like Figure 1-Figure 2 As shown, the ultrasonic component 2 further includes a drain port 24 disposed on a side of the ultrasonic device 21 , and the drain port 24 is connected to the processing chamber 22 .

[0032] The vacuum device can use a water circulation vacuum pump, which is an existing product.

[0033] The ultrasonic device can be an ultrasonic cleaner, the ultrasonic frequency power source is arranged on one side of the main body of the ultrasonic device, and a transducer is arranged under the processing chamber, and the above components are all existing products. During the degassing process, the solution entrained with the gas may fall into the processing chamber, so a drain port is arranged to facilitate the discharge of the solution in the processing chamber, or the discharge of the cleaning solution when the processing chamber is cleaned; a valve is arranged on the drain port, and the valve is in a normally closed state, and is only opened when the solution in the processing chamber needs to be discharged, and the valve is closed after the discharge is completed.

[0034] When in use, first put the sample to be processed into the sample container, open the sealing cover, place multiple sample containers neatly in the processing chamber, and cover the sealing cover; ensure that both ends of the connecting pipe are connected to the corresponding positions of the ultrasonic device and the vacuum device respectively; start the vacuum device and the ultrasonic device to degas the sample; after the treatment is completed, open the balance valve to promote the flow of internal and external gases, so that the air pressure inside and outside the processing chamber is connected, and avoid the solution in the vacuum device from flowing into the processing chamber through the connecting pipe due to the pressure difference; open the sealing cover and take out the sample container; repeat the above operation to degas other sample containers.

[0035] Example 2

[0036] like Figure 1 , Figure 3 As shown, the device further comprises: a clamping assembly 3, comprising a clamping member 31 arranged on the side wall of the processing chamber 22, and the clamping member 31 is provided with a clamping hole 32 for clamping the sample container to be processed.

[0037] like Figure 1 , Figure 3 As shown, clamping blocks 33 are provided on both sides of the clamping hole 32 , and the diameter of the clamping hole 32 can be enlarged by stretching the clamping blocks 33 in reverse.

[0038] like Figure 1 , Figure 3 As shown, both ends of the clamping member 31 are detachably disposed on the inner wall of the processing chamber 22 .

[0039] The clamping hole can be composed of two clamping blocks, and the two sides of the clamping block are connected to the clamping piece using elastic elastic parts, so that when external force acts, only the clamping block area can be stretched backward, and the clamping state will be restored after the external force disappears; the side of the clamping block and the sample container are not smooth to increase friction.

[0040] The clamping piece is detachably arranged on the inner wall of the processing chamber. The specific detachable manner is that the clamping piece is clamped on the slide groove of the inner wall of the processing chamber, or is clamped on the hook of the inner wall of the processing chamber.

[0041] During degassing treatment, multiple sample containers to be processed are placed in the processing chamber for ultrasonic degassing. In order to avoid knocking over the containers, a clamping assembly is set up. When in use, the clamping block is stretched to a suitable position, and the bottleneck of the sample container is placed in the clamping hole and clamped, thereby playing a fixing role, preventing accidental knocking that may cause the solution to tip over, and avoiding mutual contamination between samples.

[0042] Example 3

[0043] like Figure 1-Figure 2 As shown, the degassing assembly 1 further includes: a tube valve 13 disposed on the connecting tube 12 ; a balancing valve 14 disposed on the connecting tube 12 , and the balancing valve 14 is disposed at a position between the tube valve 13 and the ultrasonic device 21 .

[0044] like Figure 1-Figure 2 As shown, the device further includes: a controller 5, which is arranged outside the ultrasonic device 21 and is electrically connected to the vacuum device 11 and the ultrasonic device 21 respectively.

[0045] After degassing, due to the low pressure in the treatment chamber, if the sample container is not taken out in time, the solution in the vacuum device may flow into the treatment chamber through the connecting pipe due to the pressure difference. Therefore, a pipe valve is set on the connecting pipe. Before degassing, the balance valve is open; during degassing, the pipe valve is opened and the balance valve is gradually closed, the negative pressure in the treatment chamber gradually increases, and the gas in the solution gradually precipitates; after degassing, the pipe valve is closed and the balance valve is gradually opened to balance the pressure in the treatment chamber with the atmospheric pressure; the balance valve is closer to the ultrasonic device, which is conducive to the external gas entering the treatment chamber to balance the air pressure after degassing.

[0046] The controller is electrically connected to the vacuum device and the ultrasonic device, so that the start and stop of the vacuum device and the ultrasonic device can be controlled by the controller, thereby improving the convenience of operation; the controller can be arranged on the ultrasonic frequency power supply of the ultrasonic device.

[0047] The vacuum device, ultrasonic device, and controller can be split or integrated. The vacuum device, ultrasonic device, and controller involved in the utility model are not the innovation points of the invention, and the specific models are not described here.

[0048] It should be noted that, in this article, relational terms such as first and second, etc. are only used to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprise" or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article or device including a series of elements includes not only those elements, but also other elements not explicitly listed, or also includes elements inherent to such process, method, article or device. In the absence of further restrictions, the statement "including an element defined by ... does not exclude the existence of other identical elements in the process, method, article or device including the element".

[0049] The above are only preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent substitutions and improvements made within the spirit and principles of the present invention should be included in the protection scope of the present invention.

Claims

1. An ultrasonic vacuum device, characterized in that: include: A degassing assembly (1) comprising a vacuum device (11) provided with a connecting pipe (12); The ultrasonic assembly (2) comprises an ultrasonic device (21) arranged outside the vacuum device (11); a processing chamber (22) is arranged inside the ultrasonic device (21) and a sealing cover (23) is arranged on the top; the other end of the connecting pipe (12) is connected to the ultrasonic device (21), and the connecting pipe (12) is connected to the processing chamber (22).

2. An ultrasonic vacuum device according to claim 1, characterized in that: The ultrasonic component (2) further comprises a drain port (24) arranged on the side of the ultrasonic device (21), and the drain port (24) is connected to the processing chamber (22).

3. An ultrasonic vacuum device according to claim 1, characterized in that: Also includes: The clamping assembly (3) comprises a clamping member (31) arranged on the side wall of the processing chamber (22), and the clamping member (31) is provided with a clamping hole (32) for clamping the sample container.

4. An ultrasonic vacuum device according to claim 3, characterized in that: Clamping blocks (33) are provided on both sides of the clamping hole (32), and the diameter of the clamping hole (32) can be enlarged by stretching the clamping blocks (33) in reverse.

5. The ultrasonic vacuum device according to claim 3, characterized in that: Both ends of the clamping member (31) are detachably arranged on the inner wall of the processing chamber (22).

6. An ultrasonic vacuum device according to any one of claims 1 to 5, characterized in that: The degassing assembly (1) further comprises: A pipe valve (13) is arranged on the connecting pipe (12); The balancing valve (14) is arranged on the connecting pipe (12), and the balancing valve (14) is arranged at a position between the pipe valve (13) and the ultrasonic device (21).

7. An ultrasonic vacuum device according to claim 6, characterized in that: Also includes: The controller (4) is arranged outside the ultrasonic device (21) and is electrically connected to the vacuum device (11) and the ultrasonic device (21) respectively.

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