Purification auxiliary device for organic pretreatment

Abstract

The utility model discloses a purification auxiliary device for organic pretreatment, comprising: a fixed seat, used to be fixed on a receiving bottle; a three-way device, arranged on the fixed seat, the three-way device comprising: a first pipeline, extending along a first direction, used to communicate with a purification column; a second pipeline, extending along a second direction, and one end of which is communicated with the first pipeline, and the other end extends out of the fixed seat along the first direction; a third pipeline, extending along a third direction, one end of which is communicated with the first pipeline and the second pipeline, and the other end is used to pass into the receiving bottle, and the connection between the first pipeline, the second pipeline and the third pipeline forms a confluence center, and a three-way valve, the three-way valve is arranged at the reflux center, and is used to control the first pipeline to communicate with the second pipeline or the third pipeline. The device according to the embodiment of the utility model is simple to operate, can assist purification, and can greatly improve the purification efficiency.

Description

Technical Field

[0001] The utility model belongs to the technical field of laboratory detection, and in particular relates to a purification auxiliary device for organic pre-treatment. Background Art

[0002] With the increasing attention paid to the environment, the testing needs of environmental laboratories have increased significantly. Petroleum hydrocarbons (C10~C40), SVOC and other organic indicators are one of the test items, and their pre-treatment is relatively complicated, especially the purification step. During manual purification, when the waste liquid is discharged during the activation stage, the extraction liquid is applied and the eluent is received, the purification column needs to be transferred from the waste liquid bar to the receiving bottle, which is time-consuming and there is a phenomenon of liquid splashing in the purification column. Utility Model Content

[0003] The purpose of the embodiment of the utility model is to provide a purification auxiliary device for organic pretreatment, which can solve the problem of time-consuming transfer of purification columns and liquid splashing during the above-mentioned manual purification.

[0004] The present invention provides an auxiliary purification device for organic pretreatment, comprising:

[0005] A fixing seat, used for fixing on a receiving bottle;

[0006] A three-way device is arranged on the fixing seat, and the three-way device comprises:

[0007] A first pipeline extending along a first direction and used for communicating with the purification column;

[0008] A second pipe extends along a second direction, one end of which is connected to the first pipe, and the other end of which extends out of the fixing seat along the first direction;

[0009] a third pipe extending along a third direction, one end of the third pipe being connected to the first pipe and the second pipe, and the other end of the third pipe being used to pass into the receiving bottle, and a confluence center is formed at a connection point among the first pipe, the second pipe and the third pipe, and the second direction is different from the first direction and the second direction;

[0010] A three-way valve is arranged at the reflux center and is used to control the communication between the first pipeline and the second pipeline or the third pipeline.

[0011] According to an embodiment of the utility model, the purification auxiliary device for organic pretreatment further comprises an exhaust pipe, which is fixed on the fixing seat, and one end of the exhaust pipe extends into the nitrogen blowing bottle, and the other end extends out of the fixing seat.

[0012] According to an embodiment of the utility model, an air suction port is provided on the side of the fixing seat, and one end of the air suction pipe extends out from the air suction port.

[0013] According to one embodiment of the utility model, the three-way valve comprises:

[0014] A valve body, wherein the valve body is provided with openings in three directions in the axial direction and a closed end in another direction;

[0015] A rotating handle is connected to the valve body and is used to adjust the rotation of the valve body so that the first pipeline is connected to the second pipeline or the third pipeline.

[0016] According to an embodiment of the utility model, a fluid control valve is provided on the first pipeline for controlling the flow rate of the liquid flowing through the first pipeline.

[0017] According to an embodiment of the utility model, the purification auxiliary device for organic pre-treatment further includes a conduit, and the conduit is sleeved on the outlet end of the third pipeline.

[0018] According to an embodiment of the present invention, the first direction is the same as the third direction, so that the first pipeline and the third pipeline form a straight line.

[0019] According to an embodiment of the present invention, the first direction is a vertical direction.

[0020] According to an embodiment of the present invention, the first direction is perpendicular to the second direction.

[0021] According to an embodiment of the utility model, an inwardly recessed groove is provided at one end of the fixing seat, and the groove matches the port of the receiving bottle and is used for being installed on the receiving bottle.

[0022] The device of the embodiment of the utility model has at least the following effects:

[0023] According to the purification auxiliary device for organic pretreatment of the embodiment of the utility model, by setting a fixing seat, a three-way device and the structure and connection relationship of each component, it is possible to realize rapid conversion of waste liquid and receiving liquid on one device, the complexity of operation is greatly reduced, the purification column does not need to be transferred multiple times, the purification efficiency can be greatly improved, and the device has a simple structure and is easy to operate. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 This is a schematic diagram of the structure of the organic pre-treatment purification auxiliary device installed in the receiving bottle according to the embodiment of the utility model;

[0025] Figure 2 This is a schematic diagram of the structure of the organic pre-treatment purification auxiliary device according to an embodiment of the utility model;

[0026] Figure 3It is a structural schematic diagram of a three-way device according to an embodiment of the utility model.

[0027] Attached photos

[0028] Auxiliary device 100;

[0029] Fixed seat 110; groove 111;

[0030] Three-way device 120; first pipeline 121; second pipeline 122; third pipeline 123; three-way valve 124, valve body 1241; rotating handle 1242;

[0031] Air extraction pipeline 130;

[0032] Fluid control valve 140;

[0033] Catheter 150;

[0034] Purification column 160;

[0035] Receiving bottle 170. DETAILED DESCRIPTION

[0036] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0037] The specific structure and working principle of the sampling device with cleaning function (hereinafter referred to as auxiliary device) according to the embodiment of the utility model will be described in detail below with reference to the accompanying drawings.

[0038] In order to facilitate the understanding of the working principle and structure of the auxiliary device in the embodiment of the utility model, first refer to the structural diagram of the auxiliary decoration in use state.

[0039] refer to Figure 1 , Figure 1 This is a schematic structural diagram of the organic pre-treatment purification auxiliary device 100 after the receiving bottle 170 is installed in the embodiment of the utility model.

[0040] like Figure 1 As shown, the structure diagram includes an auxiliary device 100, a purification column 160 and a nitrogen blowing concentration receiving bottle 170. The two ends of the auxiliary device 100 are connected to the purification column 160 and the nitrogen blowing concentration receiving bottle 170 respectively. The auxiliary device 100 can adjust the flow direction of the liquid as a transfer valve, and then realize the conversion of the flow direction of the waste liquid and the washing liquid as needed. The whole process does not need to move and disassemble the purification column 160. The structure of the auxiliary device 100 is described in detail below in conjunction with the accompanying drawings.

[0041] Combination Figure 1 , and refer to Figure 2 , Figure 2 The schematic diagram of the structure of the organic pre-treatment purification auxiliary device 100 according to the embodiment of the utility model is shown.

[0042] like Figure 2 As shown, the auxiliary device 100 includes a fixing seat 110 and a three-way device 120. The three-way device 120 is arranged on the fixing seat 110, and includes a first pipe 121, a second pipe 122 and a third pipe 123.

[0043] like Figure 1 and Figure 2 As shown, the first pipe 121 extends along the first direction and is used to communicate with the purification column 160. The second pipe 122 extends along the second direction, one end of which is connected to the first pipe 121, and the other end extends out of the fixing seat 110 along the first direction, and can be connected to the waste liquid collector to collect waste liquid. The third pipe 123 extends along the third direction, one end of the third pipe 123 is connected to the first pipe 121 and the second pipe 122, and the other end is used to pass into the receiving bottle 170, and the connection between the first pipe 121, the second pipe 122 and the third pipe 123 forms a confluence center, and the second direction is different from the first direction and the second direction. The three-way valve 124 is arranged at the reflux center, which is used to control the communication between the first pipe 121 and the second pipe 122 or the third pipe 123.

[0044] The auxiliary device 100 of the embodiment of the utility model can be directly connected to the purification column 160 and the nitrogen blowing concentration receiving bottle 170, and the liquid outflow channel can be switched through the three-way device 120, so as to control the outflow of the washing liquid to the waste liquid collection device and the outflow of the washing liquid to the collection device, and when purification and elution are not required, the valve of the three-way device 120 can be closed. That is, the waste liquid and the receiving liquid are quickly converted on the auxiliary device 100, the complexity of the operation is greatly reduced, and the purification column 160 does not need to be transferred multiple times, which can greatly improve the purification efficiency. And the structure is simple and easy to operate.

[0045] like Figure 1 and Figure 2 As shown, in one embodiment of the utility model, the purification auxiliary device 100 for organic pre-treatment further includes an exhaust pipe 130, which is fixed on the fixing seat 110, and one end of the exhaust pipe 130 extends into the receiving bottle 170, and the other end extends out of the fixing seat 110. The gas in the nitrogen blowing and concentrating receiving bottle 170 can be extracted through the exhaust pipe 130, so that the pressure in the nitrogen blowing and concentrating receiving bottle 170 is reduced, thereby accelerating the flow of the eluent in the purification column 160, and improving the purification efficiency.

[0046] According to an embodiment of the present invention, a suction port is provided on the side of the fixing seat 110, and one end of the suction pipe 130 extends from the suction port. This structure can avoid conflict with the purification column 160 pipe, and is connected from the side, which is also conducive to the connection of the negative pressure device.

[0047] like Figure 1 and Figure 2 As shown, the three-way valve 124 includes a valve body 1241 and a rotating handle 1242. The valve body 1241 is provided with openings in three directions in the axial direction, and a closed end in another direction. The rotating handle 1242 is connected to the valve body 1241 and is used to adjust the rotation of the valve body 1241 so that the first pipeline 121 is connected to the second pipeline 122 or the third pipeline 123. This structure is convenient for manually controlling the flow direction of the fluid or closing the valve.

[0048] According to an embodiment of the present invention, a fluid control valve 140 is provided on the first pipeline 121 for controlling the flow rate of the liquid flowing through the first pipeline 121 .

[0049] According to an embodiment of the present invention, the organic pre-treatment purification auxiliary device 100 further includes a conduit 150 , which is sleeved on the outlet end of the third pipeline 123 .

[0050] According to an embodiment of the present invention, the first direction is the same as the third direction, so that the first pipe 121 and the third pipe 123 form a straight line. Preferably, the first direction is a vertical direction, which is conducive to the rapid flow of the eluent under gravity.

[0051] According to an embodiment of the utility model, the first direction is perpendicular to the second direction. In some embodiments, the first direction can also be in a non-perpendicular state. The arrangement of different directions is conducive to different liquids flowing in different directions.

[0052] According to an embodiment of the present invention, one end of the fixing seat 110 is provided with an inwardly recessed groove 111, which matches the port of the receiving bottle 170 and is used to be installed on the receiving bottle 170. This structure is conducive to the firmness of the connection between the auxiliary device 100 and the receiving bottle 170.

[0053] In summary, the auxiliary device 100 of the embodiment of the utility model has a simple structure, can be directly connected to the purification column 160 and the nitrogen-blown concentration receiving bottle 170, and can realize the switching of the liquid outflow channel through the three-way device, so as to realize the control of the outflow of the washing liquid to the waste liquid collection device and the outflow of the washing liquid into the collection device, and when purification and elution are not required, the valve of the three-way device can be closed. That is, the waste liquid and the receiving liquid are quickly converted on the auxiliary device, the complexity of the operation is greatly reduced, and the purification column 160 does not need to be transferred multiple times, which can greatly improve the purification efficiency. And the structure is simple and easy to operate.

[0054] It can be understood that in the description of the present invention, it is necessary to understand that the terms "upper", "lower", "bottom", "top", "front", "back", "inside", "outside", "horizontal", "vertical", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0055] It can be understood that in the description of the present utility model, it should be noted that, unless otherwise clearly stipulated and limited, the terms "connection", "communication", "connected", "connection" and "fitting" should be understood in a broad sense. For example, it can be a fixed connection, an integral connection, or a detachable connection; it can be the internal communication of two elements; it can be directly connected or indirectly connected through an intermediate medium; "fitting" can be the fit between surfaces, or the fit between points and surfaces or lines and surfaces, and also includes the fit between holes and axes. For ordinary technicians in this field, the specific meanings of the above terms in the present utility model can be understood according to specific circumstances.

[0056] The embodiments of the utility model are described above in conjunction with the accompanying drawings, but the utility model is not limited to the above-mentioned specific implementation methods. The above-mentioned specific implementation methods are merely illustrative and not restrictive. Under the enlightenment of the utility model, ordinary technicians in this field can also make many forms without departing from the scope of protection of the utility model and the claims, all of which are within the protection of the utility model.

Claims

1. A purification auxiliary device for organic pretreatment, characterized in that: include: A fixing seat, used for fixing on a receiving bottle; A three-way device is arranged on the fixing seat, and the three-way device comprises: A first pipeline extending along a first direction and used for communicating with the purification column; A second pipe extends along a second direction, one end of which is connected to the first pipe, and the other end of which extends out of the fixing seat along the first direction; a third pipe extending along a third direction, one end of the third pipe being connected to the first pipe and the second pipe, and the other end of the third pipe being used to pass into the receiving bottle, and a confluence center is formed at a connection point among the first pipe, the second pipe and the third pipe, and the second direction is different from the first direction and the second direction; A three-way valve is arranged at the confluence center and is used to control the communication between the first pipeline and the second pipeline or the third pipeline.

2. The purification auxiliary device for organic pretreatment according to claim 1, characterized in that: It also includes an air extraction pipeline, which is fixed on the fixing seat, with one end extending into the receiving bottle and the other end extending out of the fixing seat.

3. The purification auxiliary device for organic pretreatment according to claim 2, characterized in that: An air suction port is arranged on the side of the fixing seat, and one end of the air suction pipe extends out from the air suction port.

4. The purification auxiliary device for organic pretreatment according to claim 3, characterized in that: The three-way valve comprises: A valve body, wherein the valve body is provided with openings in three directions in the axial direction and a closed end in another direction; A rotating handle is connected to the valve body and is used to adjust the rotation of the valve body so that the first pipeline is connected to the second pipeline or the third pipeline.

5. The purification auxiliary device for organic pretreatment according to claim 4, characterized in that: The first pipeline is provided with a fluid control valve for controlling the flow rate of the liquid flowing through the first pipeline.

6. The purification auxiliary device for organic pretreatment according to claim 5, characterized in that: It also includes a catheter, which is sleeved on the outlet end of the third pipeline.

7. The purification auxiliary device for organic pretreatment according to claim 6, characterized in that: The first direction is the same as the third direction, so that the first pipeline and the third pipeline form a straight line.

8. The purification auxiliary device for organic pretreatment according to claim 7, characterized in that: The first direction is a vertical direction.

9. The purification auxiliary device for organic pretreatment according to claim 8, characterized in that: The first direction is perpendicular to the second direction.

10. The purification auxiliary device for organic pretreatment according to claim 1, characterized in that: One end of the fixing seat is provided with an inwardly recessed groove, which matches the port of the receiving bottle and is used for being installed on the receiving bottle.

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