CN218331377U - Heat dissipation control mechanism of gas chromatographic analyzer - Google Patents
Heat dissipation control mechanism of gas chromatographic analyzer Download PDFInfo
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- CN218331377U CN218331377U CN202221516981.1U CN202221516981U CN218331377U CN 218331377 U CN218331377 U CN 218331377U CN 202221516981 U CN202221516981 U CN 202221516981U CN 218331377 U CN218331377 U CN 218331377U
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Abstract
The utility model belongs to the technical field of gas chromatographic analyzer, a heat dissipation control mechanism of gas chromatographic analyzer is disclosed, including the analysis appearance column case, step motor and temperature sensor, the inside fixed mounting of analysis appearance column case has radiator fan, and a set of inlet port has been seted up to analysis appearance column case corresponding radiator fan's position, step motor fixed mounting is in the outside of analysis appearance column case, and step motor's output passes through shaft coupling fixedly connected with transmission shaft, fixed mounting has a set of valve on the transmission shaft, the louvre has all been seted up to the position that analysis appearance column case corresponds the valve, step motor's below is provided with magnetic sensor. This application is through controlling step motor and radiator fan to the size that the valve was opened in the control and radiator fan's rotational speed, and through the temperature measurement that lasts, record the temperature difference of current temperature and target temperature, control radiator fan and radiator valve's aperture size, thereby realize the quick steady cooling purpose of analysis appearance column box in the finite time.
Description
Technical Field
The application relates to the technical field of gas chromatographic analyzers, in particular to a heat dissipation control mechanism of a gas chromatographic analyzer.
Background
Gas chromatography technology currently occupies an important position in the field of analytical chemistry. Because of the capability of separating and detecting complex mixtures, the method is widely applied to industries such as petroleum, chemical engineering, agriculture and the like. The temperature control of the column box is the core of the temperature control of the whole gas chromatograph, so that the stability of the temperature of the column box of the gas chromatograph is maintained, and the rapid temperature rise and temperature reduction can be achieved, which is one of the key points of the research and development of the gas chromatograph.
Some gas chromatograph's column case temperature control system at present have certain limitation, and the concrete performance is in its purpose that can't reach the cooling fast steadily in limited time, causes the temperature of column incasement portion unstable, has to wait further improvement.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, the present application provides a heat radiation control mechanism of a gas chromatograph.
The application provides a heat dissipation control mechanism of gas chromatographic analyzer adopts following technical scheme:
the utility model provides a heat dissipation control mechanism of gas chromatography appearance, includes analysis appearance post case, step motor and temperature sensor, the inside fixed mounting of analysis appearance post case has radiator fan, just a set of inlet port has been seted up to analysis appearance post case corresponding radiator fan's position, step motor fixed mounting is in the outside of analysis appearance post case, just step motor's output passes through shaft coupling fixedly connected with transmission shaft, fixed mounting has a set of valve on the transmission shaft, the louvre has all been seted up to analysis appearance post case corresponding valve's position, step motor's below is provided with magnetic sensor, magnetic sensor coincides with the axis of transmission shaft, magnetic sensor's below is provided with the vector controller circuit board.
Further, temperature sensor fixed mounting is in the outside of analysis appearance column box, just temperature sensor's temperature acquisition probe wears to establish to the inside of analysis appearance column box.
Furthermore, a layer of sealing gasket is fixedly connected to the inner side of the valve.
Further, the position that the analyzer column case corresponds the louvre all fixed mounting have a protecting crust, the valve cage is covered with the protecting crust, just set up the reservation mouth that holds the transmission shaft on the protecting crust.
Furthermore, the air inlets are uniformly distributed by taking the heat dissipation fan as a circle center.
Furthermore, the vector controller circuit board and the magnetic sensor are both fixed with the analyzer column box, and the outer side of the vector controller circuit board is wrapped with a shell.
To sum up, the present application includes at least one of the following advantageous technical effects: this application is through controlling step motor and radiator fan to the size of valve and radiator fan's rotational speed are opened in control, and through the temperature measurement that lasts, record the temperature difference of current temperature and target temperature, control radiator fan and radiator fan's aperture size, thereby realize the quick steady cooling purpose of analysis appearance column box in the finite time.
Drawings
FIG. 1 is a schematic structural view of a heat radiation control mechanism of a gas chromatograph.
The reference numbers in the figures illustrate: 1. an analyzer column box; 2. heat dissipation holes; 3. a valve; 4. a stepping motor; 5. a vector controller circuit board; 6. a magnetic sensor; 7. a drive shaft; 8. a heat-dissipating fan; 9. a protective shell; 10. a gasket; 11. a temperature sensor; 12. and (4) air inlet holes.
Detailed Description
The technical solution in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application; it is obvious that the described embodiments are only a part of the embodiments of the present application, and not all embodiments, and all other embodiments obtained by those of ordinary skill in the art without any inventive work based on the embodiments in the present application belong to the protection scope of the present application.
In the description of the present application, it should be noted that the terms "upper", "lower", "inner", "outer", "top/bottom", and the like indicate orientations or positional relationships based on those shown in the drawings, and are only for convenience of description and simplification of description, but do not indicate or imply that the referred device or element must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "disposed," "sleeved/connected," "connected," and the like are to be construed broadly, e.g., "connected," which may be fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood in a specific case by those of ordinary skill in the art.
The present application is described in further detail below with reference to fig. 1.
The embodiment of the application discloses a heat dissipation control mechanism of a gas chromatographic analyzer, which comprises an analyzer column box 1, a stepping motor 4 and a temperature sensor 11, please refer to fig. 1, wherein the temperature sensor 11 is fixedly installed outside the analyzer column box 1, and a temperature acquisition probe of the temperature sensor 11 penetrates through the inside of the analyzer column box 1, so as to measure the temperature of the inside of the analyzer column box 1, it should be noted that a cooling fan 8 is fixedly installed inside the analyzer column box 1, and a group of air inlets 12 are formed in the position of the analyzer column box 1 corresponding to the cooling fan 8, when the cooling fan 8 works, the outside air is sucked into the analyzer column box 1 through the air inlets 12, and it can be understood that the air inlets 12 are uniformly distributed by taking the cooling fan 8 as the center of a circle in order to improve the circulation effect of the air;
referring to fig. 1 again, it should be further explained that a stepping motor 4 is fixedly installed outside an analyzer column box 1, an output end of the stepping motor 4 is fixedly connected with a transmission shaft 7 through a coupler, a group of valves 3 are fixedly installed on the transmission shaft 7, heat dissipation holes 2 are formed in positions of the analyzer column box 1 corresponding to the valves 3, the transmission shaft 7 can be driven to rotate by controlling the operation of the stepping motor 4, so as to drive the valves 3 to rotate synchronously, and therefore the opening degree of the heat dissipation holes 2 is achieved, when the transmission shaft 7 and the valves 3 rotate integrally counterclockwise, the heat dissipation holes 2 are opened, when the transmission shaft 7 and the valves 3 rotate integrally clockwise, the valves 3 cover the heat dissipation holes 2, so that the heat dissipation holes 2 are closed, it can be understood that a sealing effect of the valves 3 on the heat dissipation holes 2 is improved, a layer of sealing gaskets 10 is fixedly connected to the inner side of the valves 3, in order to protect the valves 3, protective casings 9 are fixedly installed in positions of the analyzer column box 1 corresponding to the heat dissipation holes 2, and the protective casings 9 are reserved by the protective casings 9, in order to avoid the rotation of the transmission shaft 7, and the protective casings 9 are provided;
it can be understood that, in order to detect the rotation angle of transmission shaft 7, the below of step motor 4 is provided with magnetic sensor 6, magnetic sensor 6 and the coincidence of the axis of transmission shaft 7, in order to control step motor 4 conveniently, the below of magnetic sensor 6 is provided with vector controller circuit board 5, vector controller circuit board 5 and magnetic sensor 6 are all fixed mutually with analysis appearance column box 1, and the outside cladding of vector controller circuit board 5 has the shell, provide the protection to vector controller circuit board 5 with this.
The implementation principle of a heat dissipation control mechanism of a gas chromatograph of the embodiment of the application is as follows: when the temperature sensor 11 detects that the temperature inside the analyzer column box 1 is higher than a set value, the equipment starts to radiate heat, at the moment, the temperature acquired by the temperature sensor 11 and a set target temperature value are subjected to combined operation of a PID algorithm and an empirical model algorithm to give the size of the valve 3 to be opened and the rotating speed of the heat radiation fan 8, the temperature difference between the current temperature and the target temperature is measured through continuous temperature measurement, and the opening sizes of the heat radiation fan 8 and the heat radiation valve 3 are controlled, so that the aim of rapidly and stably cooling the analyzer column box 1 within a limited time is fulfilled.
The above embodiments are preferred embodiments of the present application, and the protection scope of the present application is not limited by the above embodiments, so: all equivalent changes made according to the structure, shape and principle of the present application shall be covered by the protection scope of the present application.
Claims (6)
1. The utility model provides a heat dissipation control mechanism of gas chromatograph appearance, includes analysis appearance column box (1), step motor (4) and temperature sensor (11), its characterized in that: the inside fixed mounting of analysis appearance post case (1) has radiator fan (8), just a set of inlet port (12) have been seted up to analysis appearance post case (1) position that corresponds radiator fan (8), step motor (4) fixed mounting is in the outside of analysis appearance post case (1), just step motor (4)'s output passes through shaft coupling fixedly connected with transmission shaft (7), fixed mounting has a set of valve (3) on transmission shaft (7), louvre (2) have all been seted up to analysis appearance post case (1) position that corresponds valve (3), the below of step motor (4) is provided with magnetic sensor (6), the coincidence of magnetic sensor (6) and the axis of transmission shaft (7), the below of magnetic sensor (6) is provided with vector controller circuit board (5).
2. The heat dissipation control mechanism of a gas chromatograph according to claim 1, wherein: the temperature sensor (11) is fixedly arranged outside the analyzer column box (1), and a temperature acquisition probe of the temperature sensor (11) penetrates through the analyzer column box (1).
3. The heat dissipation control mechanism of a gas chromatograph according to claim 1, wherein: the inner side of the valve (3) is fixedly connected with a layer of sealing gasket (10).
4. The heat dissipation control mechanism of a gas chromatograph according to claim 1, wherein: the analyzer column box (1) is provided with a protective shell (9) at a position corresponding to the heat dissipation holes (2), the valve (3) is covered by the protective shell (9), and a reserved opening for accommodating the transmission shaft (7) is formed in the protective shell (9).
5. The heat dissipation control mechanism of a gas chromatograph according to claim 1, wherein: the air inlets (12) are uniformly distributed by taking the heat radiation fan (8) as a circle center.
6. The heat dissipation control mechanism of a gas chromatograph according to claim 1, wherein: the vector controller circuit board (5) and the magnetic sensor (6) are fixed with the analyzer column box (1), and the outer side of the vector controller circuit board (5) is coated with a shell.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221516981.1U CN218331377U (en) | 2022-06-16 | 2022-06-16 | Heat dissipation control mechanism of gas chromatographic analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221516981.1U CN218331377U (en) | 2022-06-16 | 2022-06-16 | Heat dissipation control mechanism of gas chromatographic analyzer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN218331377U true CN218331377U (en) | 2023-01-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221516981.1U Active CN218331377U (en) | 2022-06-16 | 2022-06-16 | Heat dissipation control mechanism of gas chromatographic analyzer |
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| Country | Link |
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| CN (1) | CN218331377U (en) |
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2022
- 2022-06-16 CN CN202221516981.1U patent/CN218331377U/en active Active
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