Temperature-controllable conductance cell assembly of ion chromatograph

What is AI technical title?
AI technical title is built by Patsnap AI team. It summarizes the technical point description of the patent document.
By introducing temperature-controllable conductivity cell components into the conductivity cells of the ion chromatograph, the problem of insufficient temperature control in the prior art is solved, and more stable and reliable detection results are achieved.

CN223022051UActive Publication Date: 2025-06-24SICHUAN EVERGREEN PINE TECH CO LTD

View PDF 0 Cites 0 Cited by

Patent Information

Application Number: CN202421939383.4
Authority / Receiving Office: CN · China
Patent Type: Utility models(China)
Current Assignee / Owner
Filing Date: 2024-08-12
Publication Date: 2025-06-24
Estimated Expiration: 2034-08-12

AI Technical Summary

Technical Problem

The existing ion chromatograph conductance cells have insufficient temperature control, resulting in instability and reliability of the detection results.

Method used

A temperature-controllable ion chromatograph conductivity cell assembly is designed, and the control and monitoring of the working environment temperature of the conductivity cell is achieved by setting isothermal bodies and temperature adjustment components in the conductivity cell.

Benefits of technology

By stably controlling the working environment temperature of the conductor cell, the stability and reliability of the detection results are improved, and the monitoring efficiency and accuracy are enhanced.

✦ Generated by Eureka AI based on patent content.

Smart Images

Figure CN223022051U_ABST

Patent Text Reader

Abstract

The utility model relates to the technical field of ion chromatographs, in particular to a temperature-controllable conductance cell assembly of an ion chromatograph, which comprises a shell internally provided with a mounting cavity; a bracket is arranged in the mounting cavity, and an isothermal body is arranged on the bracket and is used for regulating and controlling the temperature environment of the conductance cell; the isothermal body is provided with a preheating structure used for being matched with preheating, an isothermal cavity used for installing a conductance cell is formed in the isothermal body, and the isothermal body is further provided with a temperature adjusting assembly used for adjusting the internal temperature of the isothermal cavity. According to the utility model, the working environment temperature of the conductance cell is adjusted and controlled, so that the ionic liquid is kept at a proper temperature, the monitoring result of the conductance cell is more stable and reliable, and the monitoring efficiency and accuracy are further improved.

Need to check novelty before this filing date? Find Prior Art

Description

Technical Field

[0001] The utility model relates to the technical field of ion chromatographs, and particularly relates to a temperature-controllable conductivity cell assembly of an ion chromatograph. Background Art

[0002] Temperature is crucial for the detection and analysis process of an ion chromatograph. Only by controlling the stability and accuracy of the ambient temperature during the process can the reliability of the sample analysis results be ensured. The cell body and cell connector of the conductivity cell itself cannot perform temperature monitoring. Therefore, it is necessary to cooperate with the conductivity cell assembly for temperature monitoring and control. By adjusting and controlling the temperature of the test environment through the conductivity cell assembly and monitoring the temperature in real time, the accuracy and stability of the results of the conductivity cell during the test can be effectively guaranteed.

[0003] In the existing conductivity cell, the test environment between the electrodes is not temperature-controlled, and the temperature of the liquid to be measured is the ambient temperature. When the temperature of the liquid to be measured changes due to the influence of the external environment, the results detected by the electrodes of the conductivity cell will be affected to a certain extent.

[0004] It can be seen that there is still room for urgent improvement in the current detection scheme of the conductivity cell for ionic liquids, and it should be improved to enhance the stability and controllability of the detection environment, thereby helping to improve the stability and reliability of the detection results. Therefore, a more reasonable technical solution needs to be proposed to solve the technical problems existing in the prior art. Summary of the Utility Model

[0005] To at least overcome one of the above-mentioned defects, the utility model proposes a conductivity cell of an ion chromatograph. By controlling the temperature at the conductivity cell, the ambient temperature inside the conductivity cell is adjusted and stabilized, so as to realize testing under a stable environment, thereby ensuring the stability and reliability of the results.

[0006] To achieve the above object, the conductivity cell disclosed by the utility model can adopt the following technical solutions:

[0007] A temperature-controllable conductivity cell assembly of an ion chromatograph includes a housing, and the interior of the housing is an installation cavity; a bracket is arranged in the installation cavity, and an isothermal body is arranged on the bracket and used to regulate the temperature environment of the conductivity cell; a preheating structure for cooperating with preheating is arranged on the isothermal body, an isothermal cavity for installing the conductivity cell is formed inside the isothermal body, and a temperature adjustment component for adjusting the temperature inside the isothermal cavity is also arranged.

[0008] For the above-disclosed conductivity cell assembly, the temperature of the working environment of the conductivity cell is regulated by the isothermal body, so that the conductivity cell maintains a stable ambient temperature during the working process, thereby ensuring the stability and reliability of the detection results. The ionic liquid enters the isothermal cavity after preheating, making full use of the heat of the isothermal body and also facilitating the improvement of the heating efficiency of the ionic liquid.

[0009] Furthermore, the structure of the isothermal body is not uniquely defined. Here, an optimization is carried out and one feasible option is proposed: a heating cylinder and a heating element are connected to the isothermal cavity. The electric heating element extends from the outside of the heating cylinder into the heating cylinder and is used to adjust the temperature inside the isothermal cavity. When such a scheme is adopted, the heating cylinder heats the isothermal cavity, and the heating element extends to the isothermal cavity, and can be attached to the outer side wall of the isothermal cavity or extend into the isothermal cavity for direct heating.

[0010] Furthermore, the heating element can be constructed in various forms and is not uniquely defined. Here, an optimization is carried out and one feasible option is proposed: the heating element includes a heating rod, and a partition is provided between the heating rod and the heating cylinder. When such a scheme is adopted, the partition is used to close the port of the heating cylinder, so that a heating cavity is formed inside the heating cylinder. When the heating element works, the generated heat is enclosed in the heating cavity, which can avoid heat loss.

[0011] Furthermore, when the temperature inside the isothermal cavity reaches an appropriate range, the heating power of the heating element can be reduced to avoid too high a temperature rise inside the isothermal cavity. Therefore, it is necessary to monitor the temperature inside the isothermal cavity in real time. The specific method is not uniquely defined. Here, an optimization is carried out and one feasible option is proposed: a temperature detection component is provided on the isothermal body and is used to monitor the temperature value inside the isothermal cavity. When such a scheme is adopted, the temperature monitoring component includes a temperature sensor.

[0012] Furthermore, while monitoring the temperature, the heating of the heating element is also directly controlled. The specific scheme is not uniquely defined. Here, an optimization is carried out and one feasible option is proposed: a temperature control switch is also provided at the isothermal body.

[0013] Furthermore, in order to control and adjust the working process of the entire conductivity cell assembly, an optimization is carried out here and one feasible option is proposed: a control board is also provided on the bracket. When such a scheme is adopted, the control board is fixedly connected to the bracket through a connecting column.

[0014] Furthermore, in order to better maintain the temperature environment inside the isothermal cavity stable and reliable, the structure of the housing is optimized so that the housing can better isolate external interference. Here, an optimization is carried out and one feasible option is proposed: a heat insulation component is provided on the inner surface of the housing. When such a scheme is adopted, structures such as heat insulation pads and heat insulation plates can be used as the heat insulation component; among them, the housing includes a cover plate connecting the bracket and a housing portion covering the cover plate, and heat insulation components are provided on the inner wall surface of the housing portion and the inner wall surface of the cover plate.

[0015] Furthermore, since the housing structure forms a relatively enclosed monitoring space, when transporting the ionic liquid, it can be achieved through various solutions. Here, an optimization is carried out and one feasible option is proposed: several two-way connectors are provided on the housing, and the two-way connectors are used to transport and replace the ionic liquid to the isothermal cavity. When adopting such a solution, the number of the two-way connectors is two, one is connected to the liquid inlet structure, and the other is connected to the liquid outlet structure.

[0016] Furthermore, the preheating structure is used to preheat the ionic liquid entering the isothermal cavity. Specifically, it can be achieved through various structures, and it is not uniquely limited. Here, an optimization is carried out and one feasible option is proposed: the preheating structure includes a transport pipeline that cooperates with the two-way connector. After the transport pipeline winds around the surface of the isothermal body for several weeks, it is connected to the isothermal cavity to preheat the ionic liquid before it enters the isothermal cavity. When adopting such a solution, a heat conduction layer can be provided on the surface of the transport pipeline and the isothermal body.

[0017] Furthermore, in order to reduce the influence of the heat of the isothermal body on the control board, the two are isolated. Specifically, it can be achieved through various solutions. Here, an optimization is carried out and one feasible option is proposed: a heat insulation layer is provided between the isothermal body and the bracket. When adopting such a solution, the heat insulation layer covers the outer surface of the isothermal body.

[0018] Compared with the prior art, some beneficial effects of the disclosed technical solution of the present utility model include:

[0019] The present utility model adjusts and controls the working environment temperature of the conductivity cell, so that the ionic liquid is maintained at an appropriate temperature, thereby ensuring that the monitoring results of the conductivity cell are more stable and reliable, and further improving the monitoring efficiency and accuracy. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required to be used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present utility model, so it should not be regarded as a limitation of the scope. For those of ordinary skill in the art, without creative efforts, other related drawings can also be obtained based on these drawings.

[0021] Figure 1 It is a schematic diagram of the partial structure of the cell body.

[0022] Figure 2 It is a schematic diagram of the isothermal body structure of the conductivity cell.

[0023] Figure 3 It is a three-dimensional structure schematic diagram after removing the housing of the conductivity cell.

[0024] Figure 4It is a schematic diagram of the overall structure.

[0025] In the above-mentioned drawings, the meanings of the respective markings are as follows:

[0026] 1. First connector; 2. Cell connector; 3. Cell body; 4. Temperature detection component; 5. Temperature control switch; 6. First fastener; 7. Isothermal body; 8. Second fastener; 9. Partition; 10. Heating element; 11. Heat insulation layer; 12. Two-way connector; 13. Second connector; 14. Control board; 15. Bracket; 16. Heat insulation board; 17. Cover plate; 18. Heat insulation layer; 19. Shell part. Specific embodiments

[0027] The following further elaborates on the present utility model in conjunction with the drawings and specific embodiments.

[0028] In view of the inaccurate monitoring results of the conductivity cell of the chromatograph in the prior art, the following embodiments are optimized to overcome the defects existing in the prior art.

[0029] Embodiment

[0030] As Figures 1 to 4 shown, this embodiment provides a temperature-controllable conductivity cell assembly for an ion chromatograph, including a housing, and the interior of the housing is an installation cavity; a bracket 15 is arranged in the installation cavity, and an isothermal body 7 is arranged on the bracket 15 and used to regulate the temperature environment of the conductivity cell; a preheating structure for cooperating with preheating is arranged on the isothermal body 7, an isothermal cavity for installing the conductivity cell is formed inside the isothermal body 7, and a temperature adjustment component for adjusting the temperature inside the isothermal cavity is also arranged.

[0031] Preferably, the conductivity cell in this embodiment includes a cell body 3, the two ends of the cell body 3 are connected with a cell connector 2, and the cell connector 2 is connected with a first connector 1.

[0032] Preferably, a first fastener 6 and a second fastener 8 are arranged on the isothermal body 7 to fix the conductivity cell.

[0033] The conductivity cell assembly disclosed in this embodiment regulates the temperature of the working environment of the conductivity cell through the isothermal body 7, so that the conductivity cell maintains a stable ambient temperature during the working process, thereby ensuring the stability and reliability of the detection results. The ionic liquid enters the isothermal cavity after preheating, making full use of the heat of the isothermal body 7 and also facilitating the improvement of the heating efficiency of the ionic liquid.

[0034] The structure of the isothermal body 7 is not uniquely defined. In this embodiment, optimization is carried out and one of the feasible options is adopted: a heating cylinder and a heating element 10 are connected to the isothermal cavity. The electric heating element 10 extends from the outside of the heating cylinder into the heating cylinder and is used to adjust the temperature inside the isothermal cavity. When such a solution is adopted, the heating cylinder heats the isothermal cavity, and the heating element 10 extends to the isothermal cavity, and can be attached to the outer side wall of the isothermal cavity or extend into the isothermal cavity for direct heating.

[0035] The heating element 10 can be constructed in various forms and is not uniquely defined. In this embodiment, optimization is carried out and one of the feasible options is adopted: the heating element 10 includes a heating rod, and a partition 9 is provided between the heating rod and the heating cylinder. When such a solution is adopted, the partition 9 is used to close the port of the heating cylinder, so that a heating cavity is formed inside the heating cylinder. When the heating element 10 works, the generated heat is enclosed in the heating cavity, which can avoid heat loss.

[0036] Preferably, the heating rod can be an electric heating rod.

[0037] When the temperature inside the isothermal cavity reaches an appropriate range, the heating power of the heating element 10 can be reduced to avoid excessive temperature rise inside the isothermal cavity. Therefore, it is necessary to monitor the temperature inside the isothermal cavity in real time. The specific method is not uniquely defined. In this embodiment, optimization is carried out and one of the feasible options is adopted: a temperature detection component 4 is provided on the isothermal body 7 and is used to monitor the temperature value inside the isothermal cavity. When such a solution is adopted, the temperature monitoring component includes a temperature sensor.

[0038] Preferably, the temperature sensor specifically adopts a temperature sensor with the model PT1000.

[0039] While monitoring the temperature, the heating of the heating element 10 is also directly controlled. The specific solution is not uniquely defined. In this embodiment, optimization is carried out and one of the feasible options is adopted: a temperature control switch 5 is also provided at the isothermal body 7.

[0040] In order to control and adjust the working process of the entire conductivity cell assembly, this embodiment is optimized and one of the feasible options is adopted: a control board 14 is also provided on the bracket 15. When such a solution is adopted, the control board 14 is fixedly connected to the bracket 15 through a connecting column.

[0041] In order to better maintain the stable and reliable temperature environment inside the isothermal cavity, the structure of the housing is optimized so that the housing can better isolate external interference. In this embodiment, an optimization is carried out and one of the feasible options is adopted: a heat insulation component is provided on the inner surface of the housing. When adopting such a scheme, structures such as heat insulation pads and heat insulation plates 16 can be used as the heat insulation component; among them, the housing includes a cover plate 17 connected to a support bracket 15 and a housing portion 19 covering the cover plate 17, and heat insulation components are provided on the inner wall surface of the housing portion 19 and the inner wall surface of the cover plate 17.

[0042] Since the housing structure forms a relatively closed monitoring space, when transporting ionic liquid, it can be realized through various schemes. In this embodiment, an optimization is carried out and one of the feasible options is adopted: a plurality of two-way connectors 12 are provided on the housing, and the two-way connectors 12 are used to transport and replace ionic liquid into the isothermal cavity. When adopting such a scheme, the number of the two-way connectors 12 is two, one is connected to the liquid inlet structure, and the other is connected to the liquid outlet structure.

[0043] Preferably, the two-way connector 12 includes a connecting pipe, and second connectors 13 are provided at both ends of the connecting pipe.

[0044] The preheating structure is used to preheat the ionic liquid entering the isothermal cavity. Specifically, it can be realized through various structures and is not uniquely limited. In this embodiment, an optimization is carried out and one of the feasible options is adopted: the preheating structure includes a conveying pipeline cooperating with the two-way connector 12. After the conveying pipeline winds around the surface of the isothermal body 7 for several weeks, it is connected to the isothermal cavity to preheat the ionic liquid before it enters the isothermal cavity. When adopting such a scheme, a heat conduction layer can be provided on the surface of the conveying pipeline and the isothermal body 7.

[0045] In order to reduce the influence of the heat of the isothermal body 7 on the control board 14, the two are isolated. Specifically, it can be realized through various schemes. In this embodiment, an optimization is carried out and one of the feasible options is adopted: a heat insulation layer 11 is provided between the isothermal body 7 and the support 15. When adopting such a scheme, the heat insulation layer 11 covers the outer surface of the isothermal body 7.

[0046] The above are the implementation manners listed in this embodiment, but this embodiment is not limited to the above optional implementation manners. Those skilled in the art can obtain other various implementation manners by arbitrarily combining the above manners. Anyone can obtain other various forms of implementation manners under the inspiration of this embodiment. The above specific implementation manners should not be construed as limiting the protection scope of this embodiment. The protection scope of this embodiment should be defined by the claims.

Claims

1. A temperature-controllable ion chromatograph conductivity cell assembly, characterized in that: The invention comprises a shell, the interior of which is an installation cavity; a bracket (15) is arranged in the installation cavity, and an isothermal body (7) is arranged on the bracket (15) and is used to control the temperature environment of the conductivity cell; the isothermal body (7) is provided with a preheating structure for cooperating with preheating, an isothermal cavity for installing the conductivity cell is formed in the isothermal body (7), and a temperature regulating component is also provided for regulating the temperature inside the isothermal cavity.

2. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: The isothermal cavity is connected to a heating cylinder and a heating element (10); the electric heating element (10) extends from the outside of the heating cylinder into the heating cylinder and is used to adjust the temperature in the isothermal cavity.

3. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 2, characterized in that: The heating element (10) comprises a heating rod, and a partition (9) is arranged between the heating rod and the heating cylinder.

4. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: The isothermal body (7) is provided with a temperature detection component (4) for monitoring the temperature value inside the isothermal cavity.

5. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: The isothermal body (7) is also provided with a temperature control switch (5).

6. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: The support (15) is also provided with a control panel (14).

7. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: A heat insulation component is arranged on the inner surface of the shell.

8. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: A plurality of two-way connectors (12) are arranged on the shell, and the two-way connectors (12) are used to transport and replace ionic liquid to the isothermal cavity.

9. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 8, characterized in that: The preheating structure comprises a delivery pipeline matched with a two-way connector (12); the delivery pipeline is connected to the isothermal cavity after being wound along the surface of the isothermal body (7) for several cycles, so as to preheat the ionic liquid before it enters the isothermal cavity.

10. The temperature-controllable ion chromatograph conductivity cell assembly according to claim 1, characterized in that: A heat insulating layer (11) is provided between the isothermal body (7) and the bracket (15).