CN217278122U

CN217278122U - Automatic liquid feeding device of high performance liquid chromatograph

Info

Publication number: CN217278122U
Application number: CN202221160838.3U
Authority: CN
Inventors: 刘丽萍; 林瑜
Original assignee: Qingdao Product Quality Inspection And Research Institute Qingdao Product Quality And Safety Risk Monitoring Center
Current assignee: Qingdao Product Quality Inspection And Research Institute Qingdao Product Quality And Safety Risk Monitoring Center
Priority date: 2022-05-13
Filing date: 2022-05-13
Publication date: 2022-08-23
Anticipated expiration: 2032-05-13

Abstract

The utility model discloses an automatic liquid feeding device of a high performance liquid chromatograph, which comprises a supporting component, a first butt joint component and a second butt joint component, wherein the supporting component comprises a supporting frame plate, a separating plate arranged on the inner wall of the supporting frame plate and an L-shaped plate arranged on the side surface of the supporting frame plate, the first butt joint component comprises a first liquid storage tank positioned on the side surface of the separating plate, a first plug arranged on the end part of the first liquid storage tank, a first connecting pipe penetrating through the first plug, a first electronic valve with one end part arranged on the end part of the first connecting pipe, a three-way round box arranged on the other end part of the first electronic valve, a second electronic valve arranged on the side surface of the three-way round box, a second connecting pipe arranged on the end part of the second electronic valve, a second plug wrapping the second connecting pipe and a second liquid storage tank arranged on the outer wall of the second plug, the automatic liquid feeding device of the high performance liquid chromatograph can replace the water phase through a controller, avoiding the user to manually exchange water for methanol for flushing.

Description

Automatic liquid feeding device of high performance liquid chromatograph

Technical Field

The utility model relates to a high performance liquid chromatograph technical field specifically is an automatic liquid feeding device of high performance liquid chromatograph.

Background

High performance liquid chromatograph is by the reservoir, the pump, the injector, the chromatographic column, the detector, several parts such as record appearance constitute, mainly used analysis high boiling point is difficult for volatilizing, be heated unstable and the organic compound's of big molecular weight instrument equipment, the liquid feeding device is the component part in high performance liquid chromatograph, the liquid feeding device mainly infuses the function, use the pure water to test more in the high performance liquid chromatograph laboratory, the placing of pure water is easily multiplied the space that the bacteric clogging post packed particle, lead to the post to scrap very fast, so current liquid feeding device is after experiment at every turn, need the user to manually change the water phase, it washes totally to change the methyl alcohol, and the number of times of experiment is often more, too much manual operation has changed the water phase and has washed, be unfavorable for the promotion of experimental efficiency.

SUMMERY OF THE UTILITY MODEL

This section is for the purpose of summarizing some aspects of embodiments of the invention and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section and the description abstract and the utility model automatic liquid adding device of the high performance liquid chromatograph to avoid obscuring the purpose of this section, the description abstract and the utility model automatic liquid adding device of the high performance liquid chromatograph, and this simplification or omission can not be used for limiting the scope of the utility model.

The present invention has been made in view of the above and/or other problems occurring in the conventional high performance liquid chromatograph.

Therefore, the utility model aims at providing an automatic liquid feeding device of high performance liquid chromatograph can change the aqueous phase through the controller, avoids the user manual to change the aqueous phase into methyl alcohol and washes, promotes user's experimental efficiency.

For solving the technical problem, according to the utility model discloses an aspect, the utility model provides a following technical scheme:

an automatic liquid feeding device of high performance liquid chromatograph, it includes:

the supporting assembly comprises a supporting frame plate, a partition plate arranged on the inner wall of the supporting frame plate and an L-shaped plate arranged on the side surface of the supporting frame plate;

the first butt joint assembly comprises a first liquid storage tank positioned on the side face of the partition plate, a first plug installed on the end part of the first liquid storage tank, a first connecting pipe penetrating through the first plug, a first electronic valve with one end part arranged on the end part of the first connecting pipe, a three-way round box installed on the other end part of the first electronic valve, a second electronic valve arranged on the side face of the three-way round box, a second connecting pipe installed on the end part of the second electronic valve, a second plug wrapping the second connecting pipe and a second liquid storage tank arranged on the outer wall of the second plug;

the second butt joint subassembly is in including setting up third connecting pipe on the three-way circle box side, install third electronic valve on the third connecting pipe end, setting are in shunt, one end on the third electronic valve side are installed fourth connecting pipe on the shunt side, setting are in high-pressure pump on another tip of fourth connecting pipe with install support the controller on the deckle board side, just first electronic valve the second electronic valve the third electronic valve with the high-pressure pump respectively with controller electric connection.

As an automatic liquid feeding device of high performance liquid chromatograph's an preferred scheme, wherein, the quantity of first butt joint subassembly is two sets of.

As an automatic liquid feeding device of high performance liquid chromatograph's an preferred scheme, wherein, be provided with the spring on the side of division board, the arc is installed to the tip of spring.

As an automatic liquid feeding device of high performance liquid chromatography's an preferred scheme, wherein, the side-mounting that supports the deckle board places the deckle board.

As an automatic liquid feeding device of high performance liquid chromatograph's an preferred scheme, wherein, first connecting pipe with be provided with the installation lid on the side of second connecting pipe.

As an automatic liquid feeding device of high performance liquid chromatography's an preferred scheme, wherein, sealed pad is installed to the inner wall of installation lid.

Compared with the prior art, the utility model discloses the beneficial effect who has is: this kind of automatic liquid feeding device of high performance liquid chromatograph, respectively to the high-pressure pump through the controller, first electronic valve, second electronic valve and third electronic valve control, through closing the second electronic valve and starting first electronic valve or starting the second electronic valve and closing the switching of first electronic valve, third electronic valve and high-pressure pump are started respectively to the subdividing, thereby reach the automatic imbibition to first liquid storage pot or second liquid storage pot, be convenient for use the pure water in the first liquid storage pot or use the methyl alcohol in the second liquid storage pot to wash after the experiment in the experiment, avoid the user to change the aqueous phase manually.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the present invention will be described in detail with reference to the accompanying drawings and detailed embodiments, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without inventive labor. Wherein:

fig. 1 is a schematic diagram of the overall structure of an automatic liquid adding device of a high performance liquid chromatograph of the present invention;

fig. 2 is a schematic view of a partial structure of an automatic liquid adding device of a high performance liquid chromatograph according to the present invention;

fig. 3 is the local structure diagram of the automatic liquid feeding device of the high performance liquid chromatograph of the present invention.

Detailed Description

In order to make the aforementioned objects, features and advantages of the present invention more comprehensible, embodiments accompanied with figures are described in detail below.

Next, the present invention will be described in detail with reference to the schematic drawings, and in order to describe the embodiments of the present invention in detail, the sectional views showing the device structure will not be enlarged partially according to the general scale for convenience of description, and the schematic drawings are only examples, which should not limit the scope of the present invention. In addition, the three-dimensional dimensions of length, width and depth should be included in the actual fabrication.

In order to make the objects, technical solutions and advantages of the present invention clearer, embodiments of the present invention will be described in further detail below with reference to the accompanying drawings.

The utility model provides an automatic liquid feeding device of high performance liquid chromatograph can change the aqueous phase through the controller, avoids the manual methyl alcohol of changing into of user's aqueous phase to wash, promotes user's experimental efficiency.

Fig. 1-3 show a schematic structural diagram of an embodiment of an automatic liquid adding device for a high performance liquid chromatograph according to the present invention, please refer to fig. 1-3, and a main body of the automatic liquid adding device for a high performance liquid chromatograph according to the embodiment includes a supporting component 100, a first butt-joint component 200, and a second butt-joint component 300.

The supporting assembly 100 includes a supporting frame plate 110, a partition plate 120 mounted on an inner wall of the supporting frame plate 110, and an L-shaped plate 130 disposed on a side surface of the supporting frame plate 110, a groove cavity is formed at an upper portion of the supporting frame plate 110, the partition plate 120 is disposed in the groove cavity, the first docking assembly 200 includes a first liquid storage tank 210 disposed on a side surface of the partition plate 120, a first stopper 220 mounted on an end portion of the first liquid storage tank 210, a first connection pipe 230 penetrating the first stopper 220, a first electronic valve 240 having an end portion disposed on an end portion of the first connection pipe 230, a three-way round box 250 mounted on another end portion of the first electronic valve 240, a second electronic valve 260 disposed on a side surface of the three-way round box 250, a second connection pipe 270 mounted on an end portion of the second electronic valve 260, a second stopper 280 wrapping the second connection pipe 270, and a second liquid storage tank 290 disposed on an outer wall of the second stopper 280, the first liquid storage tank 210 and the second liquid storage tank 290 are respectively disposed on a side surface of the partition plate 120, the left port of the three-way round box 250 is provided with a first electronic valve 240, the right port of the three-way round box 250 is provided with a second electronic valve 260, the second butt joint assembly 300 comprises a third connecting pipe 310 arranged on the side surface of the three-way round box 250, a third electronic valve 320 arranged on the end part of the third connecting pipe 310, a flow divider 330 arranged on the side surface of the third electronic valve 320, a fourth connecting pipe 340 with one end part arranged on the side surface of the flow divider 330, a high-pressure pump 350 arranged on the other end part of the fourth connecting pipe 340 and a controller 360 arranged on the side surface of the supporting frame plate 110, the first electronic valve 240, the second electronic valve 260, the third electronic valve 320 and the high-pressure pump 350 are respectively and electrically connected with the controller 360, the lower port of the three-way round box 250 is provided with the third connecting pipe 310, the first electronic valve 240, the second electronic valve 260, the third electronic valve 320 and the high-pressure pump 350 are respectively and electrically connected with the controller 360 and are respectively provided with relays, the controller 360 is a PLC controller, the controller 360 is electrically connected to a control panel of the high performance liquid chromatograph, one end of the high pressure pump 350 is connected to the splitter 330 via a fourth connection pipe 340, the other end of the high pressure pump 350 is pre-installed on a six-way valve of the high performance liquid chromatograph, the three-way round box 250 is installed on a side surface of the L-shaped plate 130, when the liquid needs to be delivered for the experiment, the user starts the power switch of the corresponding control panel through the program preset on the controller 360, closes the second electronic valve 260 and opens the first electronic valve 240 through the relay control, then opens the third electronic valve 320 and starts the high-pressure pump 350, so that the high-pressure pump 350 communicates with the first connection pipe 230 through the fourth connection pipe 340, the flow divider 330, the third connection pipe 310, the three-way round case 250, so that the pure water pre-placed in the first liquid storage tank 210 is sent to the six-way valve, thereby facilitating the subsequent experiment process; when the experiment is finished and the water is needed to be washed, the user starts the power switch of the corresponding control panel through the program preset on the controller 360, the second electronic valve 260 is opened and the first electronic valve 240 is closed through the relay control, then the third electronic valve 320 is opened and the high-pressure pump 350 is started, so that the high-pressure pump 350 is communicated with the second connecting pipe 270 through the fourth connecting pipe 340, the flow divider 330, the third connecting pipe 310, the three-way round box 250 and the second connecting pipe 270, the methanol pre-placed in the second liquid storage tank 290 is sent into the six-way valve, the subsequent washing action is convenient, the automatic liquid suction to the first liquid storage tank 210 or the second liquid storage tank 290 is achieved, the pure water in the first liquid storage tank 210 is conveniently used in the experiment or the methanol in the second liquid storage tank 290 is used for washing after the experiment, and the manual replacement of the water phase by the user is avoided.

The number of the first butt joint assemblies 200 is two, which is convenient for a user to replace various different solutions for experiments, the side surface of the partition plate 120 is provided with a spring 121, the end part of the spring 121 is provided with an arc plate 122, the partition plate 120 and the supporting frame plate 110 form a cavity for placing a liquid storage tank, the arc plate 122 is pushed to extrude the spring 121, the first liquid storage tank 210 or the second liquid storage tank 290 is placed in the cavity and releases the arc plate 122, so that the arc plate 122 presses the first liquid storage tank 210 or the second liquid storage tank 290 to be tightly attached to the inner wall of the supporting frame plate 110 through the reaction force of the spring 121, the adverse effect of the shaking of the bottle body caused by bubbles is prevented, the placing frame plate 111 is installed on the side surface of the supporting frame plate 110, the placing frame plate 111 is a transparent plate, a card written with a name is placed in the placing frame plate 111, the user can conveniently and quickly identify the name of the liquid storage tank, the side surfaces of the first connecting pipe 230 and the second connecting pipe 270 are provided with installation covers 201, the inner wall of installation lid 201 is provided with the screw thread, the shape of installation lid 201 inner wall is with the port phase-match of pure water bottle, install respectively on first electronic valve 240 or second electronic valve 260 through the mouth of pipe that will be close to first stopper 220 or second stopper 280 one end, install on the port of pure water bottle near the mouth of pipe of installation lid 201 one end again, the installation lid 201 is with the bottleneck spiro union of pure water bottle, the person of facilitating the use directly changes bottled pure water, reduce the step of preparing pure water, further promote experimental efficiency, sealed pad 400 is installed to the inner wall of installation lid 201, increase the leakproofness of installing the pure water bottle.

With reference to fig. 1 to 3, the automatic liquid adding device for a high performance liquid chromatograph according to the present embodiment specifically replaces the water phase as follows: the user operates the control panel connected to the controller 360, and switches between closing the second electronic valve 260 and starting the first electronic valve 240 or starting the second electronic valve 260 and closing the first electronic valve 240, and then respectively starts the third electronic valve 320 and the high-pressure pump 350, so as to achieve automatic liquid suction for the first liquid storage tank 210 or the second liquid storage tank 290, and avoid the user from manually replacing the water phase.

While the invention has been described above with reference to an embodiment, various modifications may be made and equivalents may be substituted for elements thereof without departing from the scope of the invention. In particular, as long as there is no structural conflict, the various features of the disclosed embodiments of the present invention can be used in any combination with each other, and the non-exhaustive description of these combinations in this specification is merely for the sake of brevity and resource conservation. Therefore, it is intended that the invention not be limited to the particular embodiments disclosed, but that the invention will include all embodiments falling within the scope of the appended claims.

Claims

1. The utility model provides an automatic liquid feeding device of high performance liquid chromatograph which characterized in that includes:

the support assembly (100) comprises a support frame plate (110), a separation plate (120) arranged on the inner wall of the support frame plate (110) and an L-shaped plate (130) arranged on the side surface of the support frame plate (110);

a first butt joint assembly (200) including a first liquid storage tank (210) located at a side of the partition plate (120), a first stopper (220) installed on an end of the first liquid storage tank (210), a first connection pipe (230) penetrating through the first stopper (220), a first electronic valve (240) having one end disposed on an end of the first connection pipe (230), a three-way round box (250) installed on the other end of the first electronic valve (240), a second electronic valve (260) disposed on a side of the three-way round box (250), a second connection pipe (270) installed on an end of the second electronic valve (260), a second stopper (280) wrapping the second connection pipe (270), and a second liquid storage tank (290) disposed on an outer wall of the second stopper (280);

the second butt joint assembly (300) comprises a third connecting pipe (310) arranged on the side face of the three-way round box (250), a third electronic valve (320) arranged at the end part of the third connecting pipe (310), a flow divider (330) arranged on the side face of the third electronic valve (320), a fourth connecting pipe (340) arranged at one end part of the flow divider (330), a high-pressure pump (350) arranged at the other end part of the fourth connecting pipe (340) and a controller (360) arranged on the side face of the supporting frame plate (110), and the first electronic valve (240), the second electronic valve (260), the third electronic valve (320) and the high-pressure pump (350) are respectively electrically connected with the controller (360).

2. The automatic liquid adding device for the high performance liquid chromatograph according to claim 1, wherein the number of the first butt joint assemblies (200) is two.

3. The automatic liquid adding device of the high performance liquid chromatograph of claim 2, wherein a spring (121) is arranged on the side surface of the partition plate (120), and an arc-shaped plate (122) is installed at the end part of the spring (121).

4. The automatic liquid adding device of high performance liquid chromatograph according to claim 3, wherein the side of the supporting frame plate (110) is provided with a placing frame plate (111).

5. The automatic liquid adding device of the high performance liquid chromatograph according to claim 4, wherein the first connecting pipe (230) and the second connecting pipe (270) are provided with mounting covers (201) on the side surfaces thereof.

6. The automatic liquid adding device of the high performance liquid chromatograph of claim 5, wherein a sealing gasket (400) is installed on the inner wall of the installation cover (201).