CN219348763U

CN219348763U - Intelligent flow-regulating high performance liquid chromatograph

Info

Publication number: CN219348763U
Application number: CN202222468987.2U
Authority: CN
Inventors: 郑基斌; 赵道远
Original assignee: Nanjing Dongcun Scientific Instrument Co ltd
Current assignee: Nanjing Dongcun Scientific Instrument Co ltd
Priority date: 2022-09-16
Filing date: 2022-09-16
Publication date: 2023-07-14
Anticipated expiration: 2032-09-16

Abstract

The utility model relates to the technical field of liquid chromatograph. The utility model provides a high performance liquid chromatograph specifically is intelligent regulation flow, includes the chromatograph body, be provided with sampling mechanism and metering mechanism on the chromatograph body, be provided with a plurality of stock solution bottles on the chromatograph body, and stock solution bottle, metering mechanism and sampling mechanism are linked together through coupling assembling in proper order, the inside of chromatograph body is provided with the detection room, sampling mechanism sets up the inside at the detection room, and sampling mechanism includes a plurality of small-size pumps, lofting box and advances a kind pipe, metering mechanism installs the outside at the chromatograph body, and metering mechanism includes small-size pump one, flow sensor and metering box. The utility model solves the problem that the amount of the sample entering the sample tank is difficult to accurately adjust through the metering mechanism and the sample feeding mechanism, has compact structure and quick operation by hands, and is suitable for popularization.

Description

Intelligent flow-regulating high performance liquid chromatograph

Technical Field

The utility model belongs to the technical field of liquid chromatographs, and particularly relates to a high-efficiency liquid chromatograph capable of intelligently adjusting flow.

Background

The liquid chromatograph is an instrument for separating the mixture first and then analyzing and identifying the mixture by utilizing the difference of the distribution ratio of the mixture between liquid and solid or two liquids which are not mutually soluble, has the advantages of high resolution, high sensitivity, high speed, repeated utilization of chromatographic columns, easy collection of the flowing-out components and the like, and is widely applied to various fields of biochemistry, food analysis, medical research, environmental analysis, inorganic analysis and the like.

The existing liquid chromatograph generally carries out sample injection through an automatic sample injection system with the sample injection process, and the system is generally set to be fixed in the sample box in order to facilitate rapid detection, so that the flow is more troublesome to accurately adjust, and the high-efficiency liquid chromatograph capable of intelligently adjusting the flow is provided for solving the problems.

Disclosure of Invention

The utility model aims to provide a high performance liquid chromatograph capable of intelligently adjusting flow so as to solve the problem that the flow of a sample is inconvenient to accurately adjust.

The utility model provides the following technical scheme:

the utility model provides an intelligent flow regulation's high performance liquid chromatograph, includes the chromatograph body, be provided with sampling mechanism and metering mechanism on the chromatograph body, be provided with a plurality of stock solution bottles on the chromatograph body, and stock solution bottle, metering mechanism and sampling mechanism are linked together through coupling assembling in proper order;

the chromatograph body is internally provided with a detection chamber, the sample injection mechanism is arranged in the detection chamber and comprises a plurality of small water pumps, a sample placing box and a sample injection tube;

the metering mechanism is arranged outside the chromatograph body and comprises a small water pump I, a flow sensor and a metering box;

the connecting assembly comprises a first connecting pipe, a second connecting pipe and a third connecting pipe.

Preferably, a plurality of liquid storage bottles are placed at the upper position of the chromatograph body, one end of the first connecting pipe is arranged in the liquid storage bottle, the other end of the first connecting pipe is fixedly connected with one end of a water inlet of the first small water pump, and one end of a water outlet of the first small water pump is connected with one end of a water inlet of the flow sensor through a hose.

Preferably, the flow sensor is electrically connected with the chromatograph body, one end of a water outlet of the flow sensor is fixedly connected with the second connecting pipe, a plurality of metering cavities are formed in the metering box, a liquid inlet and a liquid outlet are respectively formed in the inner wall of the top and the inner wall of the bottom of the metering cavity, and one end of the second connecting pipe is fixedly connected with the liquid inlet.

Preferably, a valve is arranged in the metering cavity and above the liquid outlet, the valve is electrically connected with the chromatograph body, the inner wall of the liquid outlet is fixedly connected with one end of a connecting pipe III, and the other end of the connecting pipe III is fixedly connected with one end of an input shaft of the small water pump.

Preferably, the small water pump is fixedly connected with the inner wall of the detection chamber, one end of an output shaft of the small water pump is fixedly connected with one end of a sample inlet pipe, and the other end of the sample inlet pipe is communicated with the lofting box.

Preferably, the first connecting pipe, the second connecting pipe and the third connecting pipe are all made of PU flexible pipes, the liquid storage bottle is made of glass, and scale marks are arranged on the outer wall of the liquid storage bottle.

The beneficial effects of the utility model are as follows:

according to the utility model, the metering mechanism is arranged, under the action of the small water pump and the connecting assembly, the liquid in the liquid storage bottle can be detected as the flow value when passing through the flow sensor, the liquid is concentrated in the metering cavity, after the flow value passing through the flow sensor reaches the standard, the valve is opened, the sample injection is completed through the sample injection mechanism, and the sample injection amount is conveniently and rapidly regulated through the metering mechanism.

Drawings

The accompanying drawings are included to provide a further understanding of the utility model and are incorporated in and constitute a part of this specification, illustrate the utility model and together with the embodiments of the utility model, serve to explain the utility model. In the drawings:

FIG. 1 is a schematic view of the structure of a chromatograph body of the present utility model;

FIG. 2 is a schematic view of the metering mechanism of the present utility model;

FIG. 3 is a schematic view of the structure of the middle metering chamber of the present utility model;

fig. 4 is a schematic structural view of the loft box of the present utility model.

Marked in the figure as: 1. a chromatograph body; 2. a liquid storage bottle; 3. a first connecting pipe; 4. scale marks; 5. a flow sensor; 6. a second connecting pipe; 7. a metering box; 8. a valve; 9. a third connecting pipe; 10. a small water pump I; 11. a metering chamber; 12. a liquid inlet; 13. a liquid outlet; 13. a detection chamber; 14. a small water pump II; 15. a sample inlet tube; 16. a lofting box; 17. and a detection chamber.

Detailed Description

Example 1

As shown in fig. 1 to 4, an intelligent flow-regulating high performance liquid chromatograph comprises a chromatograph body 1, a metering mechanism and a sample injection mechanism, wherein the sample injection mechanism and the metering mechanism are all electrically connected with the chromatograph body 1, the metering mechanism consists of a small water pump 10, a metering box 7 and a flow sensor 5, the metering box 7 and the flow sensor 5 are fixedly connected with the outer wall of the chromatograph body 1 through screws, the sample injection mechanism is arranged in a detection chamber 17 of the chromatograph body 1, a plurality of liquid storage bottles 2 are arranged on the outer wall of the top of the chromatograph body 1, and the liquid storage bottles 2 are sequentially communicated with the metering mechanism sample injection mechanisms through connecting components.

Specifically, this embodiment is illustrated by the following materials: the outer shells of the metering box 7 and the flow sensor 5 are made of plastic, the connecting component is a PU hose, the pipeline in the sample injection mechanism is a metal pipe, the liquid storage bottle 2 is a transparent glass or corrosion-resistant plastic bottle, and the bottle body of the liquid storage bottle 2 is provided with scale marks 4.

Referring to fig. 2 and 3, the connection assembly is composed of a first connection pipe 3, a second connection pipe 6 and a third connection pipe 9, a plurality of metering chambers 11 with upper and lower openings are arranged in the metering box 7, the opening at the upper part is a liquid inlet 12, the opening at the lower part is a liquid outlet 13, a valve 8 is arranged in the metering chamber 11, the valve 8 is arranged at a position close to the liquid outlet 13, the liquid outlet 13 is arranged at a position below the valve 8, the valve 8 is an electronic valve, the valve 8 and the flow sensor 5 are electrically connected with the chromatograph body 1, the other end of the first connection pipe 3 is fixedly connected with one end of a water inlet of the first small water pump 10, one end of a water outlet of the first small water pump 10 is connected with one end of a water inlet of the flow sensor 5 through a hose, one end of the first connection pipe 3 is arranged in the liquid storage bottle 2, one end of the water outlet of the flow sensor 5 is fixedly connected with the second connection pipe 6, one end of the second connection pipe 6 is fixedly connected with the liquid inlet 12, and one end of the third connection pipe 9 is fixedly connected with the inner wall of the liquid outlet 13.

Wherein, be provided with anticorrosive coating in the inner wall of measurement chamber 11, and then play the guard action to measurement chamber 11, improve the life of measurement box 7.

Referring to fig. 1, 2 and 4, the sample feeding mechanism is composed of a plurality of small water pumps two 14 and a sample placing box 16, one end of a water outlet of a connecting pipe three 9 is fixedly connected with one end of an input shaft of the small water pumps two 14, the small water pumps two 14 are fixedly connected with the inner wall of a detection chamber 17, the sample placing box 16 is fixedly connected in the bottom inner wall of the detection chamber 17, a plurality of sample grooves are formed in the sample placing box 16, one end of an output shaft of the small water pumps two 14 is fixedly connected with a sample feeding pipe 15, and liquid in a liquid storage bottle 2 sequentially enters the sample grooves through the connecting pipe one 3, the small water pump one 10, a flow sensor 5, the connecting pipe two 6, a metering cavity 11, the connecting pipe three 9, the small water pump two 14 and the sample feeding pipe 15.

Working principle:

starting a small water pump I10, the small water pump I10 pumps out liquid in a liquid storage bottle 2 through a connecting pipe I3, the liquid enters a metering cavity 11 through a flow sensor 5 and a connecting pipe II 6, the flow sensor 5 detects the passing amount and displays the numerical value on a chromatograph body 1, when the numerical value is slightly higher than the required amount, the small water pump I10 is closed, a part of a sample stays on the inner wall of a pipeline and a cavity in the flowing process, the sample is slightly taken, the effect of reducing errors can be achieved, the small water pump I stands for a period of time, the sample on the inner wall of a connecting pipeline II 6 flows into the metering cavity 11, a valve 8 corresponding to the metering cavity 11 is opened, a small water pump II 14 is started, the sample in the metering 8 enters a sample tank through a connecting pipe III 9 and a sample injection pipe 15, sample injection is completed, and the effect of accurately controlling the sample injection amount is achieved.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides an intelligent regulation flow's high performance liquid chromatograph, includes chromatograph body (1), its characterized in that: the chromatograph body (1) is provided with a sample injection mechanism and a metering mechanism, the chromatograph body (1) is provided with a plurality of liquid storage bottles (2), and the liquid storage bottles (2), the metering mechanism and the sample injection mechanism are sequentially communicated through a connecting component;

the chromatograph comprises a chromatograph body (1), wherein a detection chamber (17) is arranged in the chromatograph body (1), a sample injection mechanism is arranged in the detection chamber (17) and comprises a plurality of small water pumps II (14), a sample injection box (16) and a sample injection pipe (15);

the metering mechanism is arranged outside the chromatograph body (1) and comprises a small water pump I (10), a flow sensor (5) and a metering box (7);

the connecting component comprises a first connecting pipe (3), a second connecting pipe (6) and a third connecting pipe (9).

2. The intelligent flow-regulating high performance liquid chromatograph according to claim 1, wherein a plurality of liquid storage bottles (2) are placed at the upper position of the chromatograph body (1), one end of the first connecting pipe (3) is arranged inside the liquid storage bottles (2), the other end of the first connecting pipe (3) is fixedly connected with one end of a water inlet of the first small water pump (10), and one end of a water outlet of the first small water pump (10) is connected with one end of a water inlet of the flow sensor (5) through a hose.

3. The intelligent flow-regulating high performance liquid chromatograph according to claim 2, wherein the flow sensor (5) is electrically connected with the chromatograph body (1), one end of a water outlet of the flow sensor (5) is fixedly connected with the second connecting pipe (6), a plurality of metering cavities (11) are formed in the metering box (7), a liquid inlet (12) and a liquid outlet (13) are formed in the inner wall of the top and the inner wall of the bottom of the metering cavity (11), and one end of the second connecting pipe (6) is fixedly connected with the liquid inlet (12).

4. The intelligent flow-regulating high performance liquid chromatograph according to claim 3, wherein a valve (8) is arranged in the metering cavity (11), the valve (8) is arranged above the liquid outlet (13), the valve (8) is electrically connected with the chromatograph body (1), the inner wall of the liquid outlet (13) is fixedly connected with one end of a connecting pipe III (9), and the other end of the connecting pipe III (9) is fixedly connected with one end of an input shaft of a small water pump II (14).

5. The intelligent flow-regulating high performance liquid chromatograph according to claim 4, wherein the small water pump II (14) is fixedly connected with the inner wall of the detection chamber (17), one end of an output shaft of the small water pump II (14) is fixedly connected with one end of a sample inlet pipe (15), and the other end of the sample inlet pipe (15) is communicated with a lofting box (16).

6. The intelligent flow-regulating high performance liquid chromatograph according to claim 5, wherein the first connecting pipe (3), the second connecting pipe (6) and the third connecting pipe (9) are all made of PU flexible pipes, the liquid storage bottle (2) is made of glass, and the outer wall of the liquid storage bottle (2) is provided with scale marks (4).