Search

CN-121977885-A - Centrifugal collection device

CN121977885ACN 121977885 ACN121977885 ACN 121977885ACN-121977885-A

Abstract

The invention provides a centrifugal collection device which comprises a driving part, a rotor assembly, a liquid storage part, a flow guide assembly, a flow regulating part and a collection assembly, wherein the rotor assembly is connected with the driving part, the liquid storage part is arranged on the rotor assembly and is provided with a liquid storage cavity, the flow guide assembly comprises a flexible guide pipe, one end of the flexible guide pipe is connected with the liquid storage part and is communicated with the liquid storage cavity, the flow regulating part is connected with the rotor assembly, the flow regulating part is provided with a slit, the flexible guide pipe deforms under the condition that the flexible guide pipe is embedded into the slit, the collection assembly comprises a processing container, a filtering part and a collection container, the filtering part is arranged in the processing container and divides the processing container into a processing cavity and a converging cavity, the processing cavity is communicated with the other end of the flexible guide pipe, and the converging cavity is communicated with the collection container, so that the consumption of buffer solution is remarkably reduced while effective stripping of absorbed secretion is realized, and the concentration of effective components in the collection solution is greatly improved, and the detection result is closer to the content of real secretion of soil.

Inventors

  • BI KUN

Assignees

  • 华芯中科(北京)科技有限公司

Dates

Publication Date
20260505
Application Date
20260130

Claims (14)

  1. 1. A centrifugal collection device, comprising: A driving member; A rotor assembly coupled to the driving member; the liquid storage piece is arranged on the rotor assembly and is provided with a liquid storage cavity; The flow guiding assembly comprises a flexible flow guiding pipe, and one end of the flexible flow guiding pipe is connected with the liquid storage piece and is communicated with the liquid storage cavity; The flow regulating part is connected with the rotor assembly and is provided with a slit, and the flexible guide pipe is deformed under the condition that the flexible guide pipe is embedded into the slit; the collecting assembly comprises a processing container, a filtering piece and a collecting container, wherein the filtering piece is arranged in the processing container and divides the processing container into a processing chamber and a converging chamber, the processing chamber is communicated with the other end of the flexible flow guide pipe, and the converging chamber is communicated with the collecting container.
  2. 2. The centrifugal collection device according to claim 1, wherein the number of slits is plural, the widths of at least two of the slits are different, or The width of the slit is adjustable.
  3. 3. The centrifugal collection device of claim 1, wherein the inner wall of the slit is configured as an arcuate wall.
  4. 4. The centrifugal collection device of claim 1, wherein the baffle assembly further comprises: The flow guiding piece is arranged at one end of the flexible flow guiding pipe, which is far away from the liquid storage piece, and the flexible flow guiding pipe is communicated with the processing cavity through the flow guiding piece; The end of the flow guiding piece, which is away from the liquid storage piece, is provided with an opening, and the through flow sectional area of the opening is smaller than that of the flexible flow guiding pipe.
  5. 5. The centrifugal collection device of claim 1, wherein the baffle assembly further comprises: And the support structure is sleeved on the outer side of the flexible guide pipe.
  6. 6. The centrifugal collection device of claim 1, wherein the reservoir further has an interface in communication with the reservoir chamber, the flexible draft tube being connected to the interface, the centrifugal collection device further comprising: The electric control valve is arranged on the flexible guide pipe or the interface; And the control module is electrically connected with any one of the electric control valve and the driving piece.
  7. 7. The centrifugal collection device of claim 6, wherein the chamber wall of the reservoir comprises a side wall and a bottom wall, the mouthpiece being disposed on the side wall; wherein, along the axial direction of the rotor assembly, the middle area of the bottom wall is lower than the edge area of the bottom wall.
  8. 8. The centrifugal collection device according to any one of claims 1 to 7, wherein the rotor assembly comprises: A rotor connected to the driving member; The support frame is connected with one side of the rotor, which is away from the driving piece, and the liquid storage piece and the flow regulating piece are respectively connected with the support frame; The distance between the central axis of the liquid storage piece and the central axis of the rotor is smaller than or equal to a set value.
  9. 9. The centrifugal collection device according to claim 8, wherein the rotor has a diameter d, wherein 0.3 m≤d≤0.4 m, and/or The weight of the rotor is G, wherein G is more than or equal to 20kg and less than or equal to 30kg.
  10. 10. The centrifugal collection device according to any one of claims 1 to 7, wherein an end of the converging chamber adjacent to the collection container is provided with a converging groove, a cross-sectional area of the end of the converging groove adjacent to the collection container being smaller than a cross-sectional area of the end of the converging groove remote from the collection container, the collection assembly further comprising: The two ends of the drainage tube are respectively communicated with the converging groove and the collecting container.
  11. 11. The centrifugal collection device according to any one of claims 1 to 7, wherein the filter element comprises: The first filter layer is provided with a first net mouth; The second filter layer is arranged on one side of the first filter layer, which is close to the collecting container, and is provided with a second net opening, and the through flow sectional area of the second net opening is smaller than that of the first net opening; The support net is arranged on one side of the second filter layer, which is away from the first filter layer.
  12. 12. The centrifugal collection device according to any one of claims 1 to 7, further comprising: And the negative pressure generating assembly is connected with the collecting container and is used for enabling the collecting container to generate negative pressure.
  13. 13. The centrifugal collection device according to any one of claims 1 to 7, further comprising: The temperature detection piece is arranged in the processing cavity; The temperature control system comprises a shell and a temperature control piece, wherein the shell is provided with a temperature control cavity, and the driving piece, the rotor assembly, the liquid storage piece, the flow guide assembly, the flow regulating piece, the collecting assembly and the temperature control piece are respectively arranged in the temperature control cavity, and the temperature control piece is used for regulating the temperature in the temperature control cavity.
  14. 14. The centrifugal collection device of claim 13, wherein the housing comprises: a housing; The heat preservation layer is arranged in the shell; The observation window is arranged on the shell and is enclosed with the inner wall of the heat preservation layer to form the temperature control cavity.

Description

Centrifugal collection device Technical Field The invention relates to the technical field of soil trace substances, in particular to a centrifugal collection device. Background The root secretion in the soil is a key carrier for carrying out substance exchange and information transmission on plants and soil environment, and the components of the root secretion comprise various trace active ingredients such as saccharides, organic acids, amino acids, phenols and the like, and the root secretion has irreplaceable effects on researching plant nutrient absorption mechanisms, soil microorganism interaction relations and migration and transformation rules of heavy metals in a soil-plant system. At present, in the related art, when collecting soil root system secretion, in order to ensure sufficient separation of secretion, the consumption of buffer solution is great, so that the concentration of active ingredients in the collected solution is extremely low, complex pretreatment such as concentration and purification needs to be additionally carried out, the time is consumed, the loss of active ingredients is easy to cause, the risk of introducing exogenous pollution exists, and the detection accuracy is influenced. In addition, the flushing mode is generally static soaking and simple stirring, the buffer solution is difficult to fully permeate into the soil micropores, and adsorbed secretions adsorbed on the surface of soil particles cannot be effectively separated, so that the detection result cannot truly reflect the actual content of the secretions in the soil. Disclosure of Invention The invention provides a centrifugal collection device which is used for solving the problems that the concentration of the effective components of the collected solution is low and the adsorbed secretion adsorbed on the surface of soil particles cannot be effectively separated when the soil root secretion is collected in the related art. The invention provides a centrifugal collection device, comprising: A driving member; A rotor assembly coupled to the driving member; the liquid storage piece is arranged on the rotor assembly and is provided with a liquid storage cavity; The flow guiding assembly comprises a flexible flow guiding pipe, and one end of the flexible flow guiding pipe is connected with the liquid storage piece and is communicated with the liquid storage cavity; The flow regulating part is connected with the rotor assembly and is provided with a slit, and the flexible guide pipe is deformed under the condition that the flexible guide pipe is embedded into the slit; the collecting assembly comprises a processing container, a filtering piece and a collecting container, wherein the filtering piece is arranged in the processing container and divides the processing container into a processing chamber and a converging chamber, the processing chamber is communicated with the other end of the flexible flow guide pipe, and the converging chamber is communicated with the collecting container. According to the invention, there is provided a centrifugal collection device, wherein the number of slits is plural, the widths of at least two slits are different, or The width of the slit is adjustable. According to the centrifugal collection device provided by the invention, the inner wall of the slit is constructed as an arc-shaped wall. According to the invention, there is provided a centrifugal collection device, the flow guide assembly further comprising: The flow guiding piece is arranged at one end of the flexible flow guiding pipe, which is far away from the liquid storage piece, and the flexible flow guiding pipe is communicated with the processing cavity through the flow guiding piece; The end of the flow guiding piece, which is away from the liquid storage piece, is provided with an opening, and the through flow sectional area of the opening is smaller than that of the flexible flow guiding pipe. According to the invention, there is provided a centrifugal collection device, the flow guide assembly further comprising: And the support structure is sleeved on the outer side of the flexible guide pipe. According to the centrifugal collection device provided by the invention, the liquid storage piece is further provided with an interface, the interface is communicated with the liquid storage cavity, the flexible flow guide pipe is connected with the interface, and the centrifugal collection device further comprises: The electric control valve is arranged on the flexible guide pipe or the interface; And the control module is electrically connected with any one of the electric control valve and the driving piece. According to the centrifugal collection device provided by the invention, the cavity wall of the liquid storage cavity comprises a side wall and a bottom wall, and the interface is arranged on the side wall; wherein, along the axial direction of the rotor assembly, the middle area of the bottom wall is lower than the edg