A new type of pressurized high efficiency dewatering centrifuge tube

By introducing a rubber piston into the centrifuge tube to increase pressure, and combining it with the filtration and centrifugation processes, the problem of low efficiency in the existing technology is solved, achieving a more efficient suspension dehydration effect and extending the service life of the centrifuge tube.

CN117181325BActive Publication Date: 2026-07-14ANHUI UNIV OF SCI & TECH

Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
ANHUI UNIV OF SCI & TECH
Filing Date
2023-09-18
Publication Date
2026-07-14

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Abstract

The present application relates to centrifuge tube device field, particularly to a new type of high-efficiency dehydration centrifuge tube with pressure boosting, a pressure boosting device is added to the existing centrifuge tube device, so that the centrifuge tube can realize the effect of increasing pressure by the swing of the piston during the high-speed rotation of the centrifuge, thereby improving the effect of centrifugal dewatering, comprising a centrifuge outer tube body, a centrifuge inner tube body, a hollow steel frame, a centrifuge inner tube fixing cover, a rubber piston and a filter hole, the bottom end of the centrifuge outer tube body is provided with a chamfer, the tube wall and the bottom end of the centrifuge inner tube body are provided with a plurality of small holes, the hollow steel frame is used for fixing the inner tube vertically, the top of the rubber piston is smooth, and the bottom is hemispherical; by the newly added rubber piston in the centrifuge inner tube body, water flows out under the action of centrifugal force and pressure, thereby speeding up the centrifugal dewatering process and increasing the effect of centrifugal dewatering.
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Description

Technical Field

[0001] This invention relates to the field of centrifuge tube devices, specifically a novel pressurized high-efficiency dehydration centrifuge tube. Background Technology

[0002] Centrifuge tube technology is widely used in biochemistry and molecular biology research, and its application in the coal industry is gradually expanding. Centrifuge tubes are mainly used for the separation and preparation of various suspension samples. Through the high-speed rotation of a centrifuge, the suspension sample in the centrifuge tube is subjected to a huge centrifugal force, causing suspended fine particles (such as coal, kaolinite, etc.) to settle at a certain speed, thereby separating from the solution and achieving dehydration. The centrifuge accelerates the solid-liquid separation speed in suspensions. However, there are many types of centrifuge tubes, and different types achieve different effects. Centrifugation generally takes a long time. To improve centrifugation efficiency, a new device is urgently needed to solve this problem. This invention adds a pressurization effect to the existing centrifuge tube device, allowing the centrifuge tube to increase pressure through piston oscillation during the high-speed rotation of the centrifuge, thereby improving the centrifugal dehydration effect. Summary of the Invention

[0003] The purpose of this invention is to provide a novel pressurized, high-efficiency dehydration centrifuge tube to solve the problem of low centrifugation efficiency mentioned above.

[0004] To achieve the above objectives, the present invention adopts the following technical solution:

[0005] A novel pressurized high-efficiency dehydration centrifuge tube includes an outer centrifuge tube body, an inner centrifuge tube body, a hollow steel frame, an inner centrifuge tube fixing cap, a rubber piston, and filter holes. The bottom end of the outer centrifuge tube body is chamfered, and the inner centrifuge tube body has multiple small holes on its tube wall and bottom end. The hollow steel frame is used to fix the inner tube vertically, and the top of the rubber piston is smooth and the bottom is hemispherical.

[0006] As a preferred embodiment, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube, wherein the height of the centrifuge outer tube body is 100mm, the outer diameter of the centrifuge outer tube body is 64mm, and the wall thickness of the centrifuge outer tube body is 2mm.

[0007] As a preferred embodiment, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube, wherein the outer diameter of the inner centrifuge tube body is 40mm and the thickness of the outer centrifuge tube body is 1.5mm, the outer diameter of the top of the inner centrifuge tube body is 60mm and the thickness of the top of the inner centrifuge tube body is 5mm, the height of the solid tube wall above the inner centrifuge tube body is 25mm, the height of the hollow filter tube wall below the inner centrifuge tube body is 35mm, the thickness of the hollow filter tube wall is 2mm, and the diameter of the filter hole is 2mm.

[0008] As a preferred embodiment, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube, wherein the thickness of the hollow steel frame is 8mm.

[0009] As a preferred embodiment, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube, wherein the outer diameter of the rubber piston is 34 mm, the height of the upper part of the rubber piston is 30 mm, and the height of the lower part of the rubber piston is 10 mm.

[0010] Preferably, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube, wherein the outer wall of the inner centrifuge tube body matches the inner wall of the outer centrifuge tube body.

[0011] Preferably, the present invention discloses a novel pressurized high-efficiency dehydration centrifuge tube in which the outer wall of the rubber piston matches the inner wall of the centrifuge inner tube body.

[0012] Compared with the prior art, the beneficial effects of the present invention are as follows:

[0013] The present invention proposes adding a rubber piston to increase pressure, so that the sample wrapped in filter paper is subjected to pressure from the piston during high-speed centrifugation, thereby achieving higher dehydration efficiency.

[0014] The present invention will now be described in more detail with reference to the accompanying drawings and embodiments. Attached Figure Description

[0015] The following is a brief description of the accompanying drawings and markings used in the embodiments:

[0016] Figure 1 This is a schematic diagram of the axial structure of the present invention;

[0017] Figure 2 This is a front view structural diagram of the present invention;

[0018] Figure 3 This is a top view of the structure of the present invention;

[0019] Figure 4 This is a schematic diagram of the structure of the centrifuge inner tube body of the present invention;

[0020] Figure 5 This is the present invention. Figure 1 Enlarged structural diagram of section B.

[0021] The markings in the diagram are as follows: 1. Centrifuge outer tube body; 2. Centrifuge inner tube body; 3. Rubber piston; 4. Filter hole; 5. Centrifuge inner tube fixing cover; 6. Hollow steel frame; 7. Drain hole; 8. External thread on the centrifuge inner tube; 9. Internal thread in the centrifuge inner tube. Detailed Implementation

[0022] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. The embodiments described herein are merely some embodiments of the present invention, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without creative effort are within the scope of protection of the present invention.

[0023] The purpose of this invention is to provide a novel pressurized high-efficiency dehydration centrifuge tube to solve the problems existing in the prior art, reduce the centrifugation time, and improve the efficiency of centrifugation.

[0024] To make the above-mentioned objects, features and advantages of the present invention more apparent and understandable, the present invention will be further described in detail below with reference to the accompanying drawings and specific embodiments.

[0025] Figure 1-5 The novel pressurized high-efficiency dehydration centrifuge tube shown includes an outer centrifuge tube body 1, an inner centrifuge tube body 2, an inner centrifuge tube fixing cover 5 installed on the top of the inner centrifuge tube body 2, a hollow steel frame 6 for support between the inner centrifuge tube body 2 and the outer centrifuge tube body 1, a filter hole 4 provided on the lower wall of the inner centrifuge tube body 2, and a rubber piston 3 placed inside the inner centrifuge tube body 2.

[0026] The height of the centrifuge outer tube body 1 is 100mm, the outer diameter of the centrifuge outer tube body 1 is 64mm, and the wall thickness of the centrifuge outer tube body is 2mm. The centrifuge outer tube body 1 facilitates the temporary storage of the centrifuged water. Since the height of the centrifuge outer tube body 1 is 100mm, the water storage space is guaranteed.

[0027] The height of the centrifuge inner tube body 2 is 60mm, the outer diameter of the centrifuge inner tube body 2 is 40mm, the thickness of the centrifuge inner tube body 2 is 1.5mm, the outer diameter of the centrifuge inner tube fixing cap 5 connected to the top of the centrifuge inner tube body 2 is 60mm, the thickness of the centrifuge inner tube fixing cap 5 connected to the top of the centrifuge inner tube body 2 is 5mm, the height of the solid tube wall at the top of the centrifuge inner tube body 2 is 25mm, and the height of the hollow tube wall at the bottom of the centrifuge inner tube body 2 is 35mm, so that water can be fully centrifuged from the centrifuge inner tube body 2 into the centrifuge outer tube body 1;

[0028] A hollow steel frame 6 for support is provided between the inner centrifuge tube body 2 and the outer centrifuge tube body 1. This structure ensures that the inner centrifuge tube body 2 will not sway left and right during high-speed centrifugation and will always remain vertical, thus preventing water in the outer centrifuge tube body 1 from flowing back and increasing the service life of the centrifuge tube.

[0029] A rubber piston 3 is placed inside the centrifuge inner tube body 2. The outer diameter of the rubber piston 3 is 34mm, the height of the upper part of the rubber piston 3 is 30mm, and the height of the lower part of the rubber piston 3 is 10mm. This structure can move up and down during high-speed centrifugation, thereby squeezing the filter paper in the centrifuge inner tube body 2, resulting in better centrifugal dehydration effect.

[0030] By adopting the technical solution of the present invention, and combining the process characteristics of vacuum filtration and centrifugation, the dehydration process is divided into two steps. First, preliminary vacuum filtration is performed to remove a large amount of easily removable free water. After the preliminary vacuum filtration is completed, the water is placed into the new centrifuge inner tube body for centrifugal dehydration to remove the adsorbed water that is difficult to remove.

[0031] First, the sample after preliminary filtration is wrapped in filter paper and then placed inside the centrifuge inner tube 2. Next, a rubber piston 3 is inserted, and the centrifuge is turned on. Under the combined action of the centrifugal force field and the rubber piston 3, the water passes through the filter paper and filter holes 4. This combination of filtration and centrifugation forms a complete dehydration process, which not only changes the traditional dehydration method but also adds a rubber piston, allowing the water to centrifuge efficiently under the combined action of centrifugal force and pressure, thereby improving the efficiency of centrifugal dehydration.

[0032] It will be apparent to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the invention can be implemented in other specific forms without departing from its spirit or essential characteristics. Therefore, the embodiments should be considered in all respects as exemplary and non-limiting, and the scope of the invention is defined by the appended claims rather than the foregoing description. Thus, all variations falling within the meaning and scope of equivalents of the claims are intended to be included within the present invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

[0033] Furthermore, it should be understood that although this specification describes embodiments, not every embodiment contains only one independent technical solution. This narrative style is merely for clarity. Those skilled in the art should consider the specification as a whole, and the technical solutions in each embodiment can also be appropriately combined to form other embodiments that can be understood by those skilled in the art.

Claims

1. A pressurized, high-efficiency dehydration centrifuge tube, characterized in that: It includes an outer centrifuge tube body, an inner centrifuge tube body, a hollow steel frame, a fixing cap for the inner centrifuge tube, a rubber piston, and filter holes. The bottom end of the outer centrifuge tube body is chamfered, and the tube wall and bottom end of the inner centrifuge tube body are provided with multiple small holes. The hollow steel frame is used to fix the inner tube vertically. The top of the rubber piston is smooth and the bottom is hemispherical. The outer wall of the rubber piston matches the inner wall of the centrifuge inner tube body; The rubber piston can move up and down inside the centrifuge tube during centrifugation.

2. The pressurized high-efficiency dehydration centrifuge tube according to claim 1, characterized in that: The centrifuge outer tube body has a height of 100mm, an outer diameter of 64mm, and a wall thickness of 2mm.

3. A pressurized high-efficiency dehydration centrifuge tube according to claim 1, characterized in that: The outer diameter of the centrifuge inner tube body is 40mm, and the thickness of the centrifuge outer tube body is 1.5mm. The outer diameter of the top of the centrifuge inner tube body is 60mm, and the thickness of the top of the centrifuge inner tube body is 5mm. The height of the solid tube wall above the centrifuge inner tube body is 25mm. The height of the hollow filter tube wall below the centrifuge inner tube body is 35mm, the thickness of the hollow filter tube wall is 2mm, and the diameter of the filter hole is 2mm.

4. A pressurized high-efficiency dehydration centrifuge tube according to claim 1, characterized in that: The thickness of the hollow steel frame is 8mm.

5. A pressurized high-efficiency dehydration centrifuge tube according to claim 1, characterized in that: The outer diameter of the rubber piston is 34mm, the height of the upper part of the rubber piston is 30mm, and the height of the lower part of the rubber piston is 10mm.

6. A pressurized high-efficiency dehydration centrifuge tube according to claim 1, characterized in that: The outer wall of the centrifuge inner tube body matches the inner wall of the centrifuge outer tube body.