阅读说明：本技术 用于毛细管色谱柱涂覆装置的泄压组件 (Pressure relief assembly for capillary chromatography column coating apparatus ) 是由 王钦玥 马金婵 魏伟 石地娟 于 2020-06-29 设计创作，主要内容包括：本发明提供一种用于毛细管色谱柱涂覆装置的泄压组件,包括气相色谱柱涂覆装置,气相色谱柱涂覆装置包括压力单元,包括：密封壳,密封壳内部形成容纳空间,密封壳的外周壁设置有密封口,密封口与容纳空间连通,密封口用于被气相色谱柱从密封壳外穿过；泄压机构,泄压机构包括触发构件和开关构件,触发构件设置在容纳空间内、位于容纳空间的下部,触发构件与开关构件电气连接,开关构件设置在压力单元并控制压力单元开启或关闭。通过密封的密封壳容纳气相色谱柱的涂覆液流出端防止涂覆液流出或者挥发,并且在密封壳内设置触发机构,在涂覆液流出后触发机构启动并控制压力单元停止供气,停止气相色谱柱的涂覆。有效防止涂覆液挥发和色谱柱端口与外部接触。(The invention provides a pressure relief assembly for a capillary chromatographic column coating device, comprising a gas chromatographic column coating device, wherein the gas chromatographic column coating device comprises a pressure unit, and the pressure unit comprises: the gas chromatographic column comprises a sealing shell, wherein an accommodating space is formed in the sealing shell, a sealing opening is formed in the peripheral wall of the sealing shell, the sealing opening is communicated with the accommodating space, and the sealing opening is used for being penetrated through by the gas chromatographic column from the outside of the sealing shell; the pressure relief mechanism comprises a trigger component and a switch component, the trigger component is arranged in the containing space and positioned at the lower part of the containing space, the trigger component is electrically connected with the switch component, and the switch component is arranged on the pressure unit and controls the pressure unit to be opened or closed. The coating liquid outflow end of the gas chromatographic column is accommodated through the sealed shell to prevent the coating liquid from flowing out or volatilizing, and a trigger mechanism is arranged in the sealed shell and starts and controls the pressure unit to stop supplying air after the coating liquid flows out to stop coating the gas chromatographic column. Effectively preventing the coating liquid from volatilizing and the chromatographic column port from contacting with the outside.)

1. A pressure relief assembly for a capillary chromatography column coating apparatus, comprising:

the sealing shell is internally provided with a containing space, the peripheral wall of the sealing shell is provided with a sealing port, the sealing port is communicated with the containing space, and the sealing port is used for a gas chromatography column to pass through the sealing shell;

the pressure relief mechanism comprises a trigger member and a switch member, the trigger member is arranged in the containing space and positioned at the lower part of the containing space, the trigger member is electrically connected with the switch member, and the switch member is used for controlling the opening or closing of a pressure unit of the capillary chromatographic column coating device; wherein the content of the first and second substances,

the trigger member includes a pressure sensor, and the pressure unit is closed when coating liquid is flowed out of the gas chromatography column, the coating liquid applies pressure to the pressure sensor, and the coating liquid is accumulated on the pressure sensor to reach a weight threshold value.

2. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 1, wherein said switch member is connected to said pressure sensor by an electrical wire, one end of said electrical wire being electrically connected to said pressure sensor and removably fixedly connected thereto.

3. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 2, wherein said capsule is provided with a clean-up door sealingly engaged with said capsule for controlling said receiving space to communicate with the outside.

4. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 3, wherein said trigger member further comprises a deposition portion disposed above said pressure sensor, said deposition portion having a replacement pad disposed thereon, said replacement pad being removably connected to a top wall of said deposition portion.

5. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 4, wherein said capsule has a bottom wall, said bottom wall is conical with its apex pointing vertically downward, a receiving cavity is formed inside said conical bottom wall, and said pressure sensor and said deposition portion are disposed at the bottom of said receiving cavity.

6. The pressure relief assembly for a capillary chromatography column coater according to claim 5, wherein said sealing housing is provided with a mounting bracket at its lower end.

7. The pressure relief assembly for a capillary chromatography column coater according to any of claims 1-6, wherein a sealing block is disposed in said sealing port, and one end of said gas chromatography column is received in said receiving space through said sealing block.

8. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 7, wherein the outer wall of said containment vessel is a transparent material.

9. The pressure relief assembly for a capillary chromatography column coating apparatus of claim 8, further comprising an alarm in electrical communication with said trigger member.

Technical Field

The invention relates to the field of chemistry, in particular to a pressure relief assembly for a capillary chromatographic column coating device.

Background

The invention patent with the application number of CN201821602396.7 discloses a capillary chromatographic column coating device, which comprises a sealed container and a pressure unit; the container wall of the sealed container is respectively provided with a chromatographic column connecting hole, an air inlet and an openable sealing door, and the inner cavity of the sealed container is also provided with a fixed frame; in the using state, a container for containing coating liquid enters the inner cavity of the sealed container through the sealing door and is arranged on the fixing frame, the chromatographic column is inserted into the inner cavity of the sealed container through the chromatographic column connecting hole, and the sealed container is communicated with the pressure unit through the air inlet. When the device is used, the coating liquid is placed into the sealed container, one end of the gas chromatographic column is inserted into the container containing the coating liquid in the sealed container, then the pressure unit provides air pressure to press the coating liquid in the sealed container into the gas chromatographic column, and the coating liquid of the gas chromatographic column overflows from one end of the gas chromatographic column after being coated.

The invention further comprises an alarm unit, wherein the alarm unit comprises a balance lever switch and an alarm, one end of the balance lever switch is provided with a coating liquid collecting part, and the other end of the balance lever switch is provided with a conductive material. In a using state, when the coating liquid collecting component receives coating liquid overflowing after the capillary chromatographic column is filled, one end of the balance with the coating liquid collecting component descends, and the other end with the conductive material ascends, so that the conductive material is communicated with the alarm circuit, and the alarm is triggered to give an alarm.

However, the invention has an alarm unit, when the coating liquid overflows, the conductive material enables the alarm circuit to be communicated, and the alarm is triggered to alarm. However, the alarm unit is triggered by using a balance principle, and the coating liquid is volatilized after falling down on the coating liquid collecting component, so that the risk of poisoning caused by volatilization of the coating liquid by experimenters exists.

Disclosure of Invention

Aims to solve the problem that the coating liquid volatilizes after overflowing to cause the poisoning of operators in the prior art. The pressure relief assembly for the capillary chromatographic column coating device is characterized in that a coating liquid outflow end of a gas chromatographic column is accommodated by a sealed sealing shell to prevent the coating liquid from flowing out or volatilizing, a trigger mechanism is arranged in the sealing shell, and the trigger mechanism is started after the coating liquid flows out and controls a pressure unit to stop supplying air to stop coating the gas chromatographic column.

There is provided a pressure relief assembly for a capillary column coating apparatus, comprising a gas column coating apparatus comprising a pressure unit, comprising: the gas chromatographic column comprises a sealing shell, wherein an accommodating space is formed in the sealing shell, a sealing opening is formed in the peripheral wall of the sealing shell, the sealing opening is communicated with the accommodating space, and the sealing opening is used for being penetrated through by the gas chromatographic column from the outside of the sealing shell; the pressure relief mechanism comprises a trigger component and a switch component, the trigger component is arranged in the containing space and positioned at the lower part of the containing space, the trigger component is electrically connected with the switch component, and the switch component is arranged on the pressure unit and controls the pressure unit to be opened or closed. The trigger member includes a pressure sensor to which the coating liquid applies pressure when the coating liquid flows out of the gas chromatography column; and when the coating liquid is accumulated on the pressure sensor to reach a weight threshold value, the pressure unit is closed.

By adopting the scheme, one end of the capillary chromatographic column is inserted into the sealing shell, the coating liquid can directly enter the sealing shell after flowing out of the gas chromatographic column, the trigger component in the sealing shell triggers the starting switch component by the coating liquid, the switch component closes the pressure unit to supply air, and the gas chromatographic column is stopped coating. The coating liquid falling on the pressure sensor can trigger the switch component to close the pressure unit in time according to the falling weight of the coating liquid. On the one hand, the coating liquid is effectively prevented from volatilizing, on the other hand, the pressure is kept to avoid the contact of the external air and the coating liquid in the gas chromatographic column, and meanwhile, the pressure unit can be closed in time to stop the coating process. The problem of among the prior art coating liquid volatilize the poisoning easily after spilling over is solved.

According to another embodiment of the present invention, there is disclosed a pressure relief assembly for a capillary column coating apparatus, wherein the switch member is connected to the pressure sensor by a wire, and one end of the wire is electrically connected to the pressure sensor and detachably and fixedly connected thereto.

By adopting the scheme, the position of the sealing shell can be conveniently changed.

According to another embodiment of the invention, the pressure relief assembly for a capillary column coating device is disclosed, wherein a cleaning cabin door is arranged on the sealing shell and used for controlling the communication between the accommodating space and the outside.

By adopting the scheme, after the pressure sensor is used for a period of time, the content of the sealing shell can accumulate a layer of polymer stationary phase due to the coating liquid, and the cabin door can be opened to clean the accommodating space after the cabin door is installed and cleaned, so that the precision of the pressure sensor is maintained.

According to another embodiment of the present invention, the trigger member further comprises a deposition portion disposed above the pressure sensor, the deposition portion having a replacement pad disposed thereon, the replacement pad being detachably connected to a top wall of the deposition portion.

By adopting the scheme, the coating liquid drops fall behind and fall on the replacement sheet, so that the replacement sheet is convenient to clean and replace, and the deposition part is used for containing the dropped coating liquid and plays a role in protecting the pressure sensor.

According to another embodiment of the invention, the pressure relief assembly for the capillary chromatography column coating device is disclosed, wherein the sealing shell is provided with a bottom wall, the bottom wall is conical with an apex vertically downwards, a containing cavity is formed inside the conical bottom wall, and the pressure sensor and the deposition part are arranged at the bottom of the containing cavity.

By adopting the scheme, the bottom wall is conical, so that the concentration of the coating liquid which drops is facilitated, the reaction of the coating liquid after the concentration on the pressure sensor is more sensitive, the size of the deposition part can be reduced, and the cleaning is convenient.

According to another embodiment of the present invention, the embodiment of the present invention discloses a pressure relief assembly for a capillary chromatography column coating apparatus, wherein a fixing bracket is arranged at the lower end of a sealing shell.

By adopting the scheme, the stability of the sealing shell during placement can be improved.

According to another embodiment of the invention, in the pressure relief assembly for the capillary chromatography column coating device disclosed in the embodiment of the invention, a sealing block is arranged in the sealing opening, and one end of the gas chromatography column penetrates through the sealing block and is accommodated in the accommodating space.

By adopting the scheme, the sealing performance of the sealing opening can be ensured, and the effect of fixing the chromatographic column by extruding and clamping the sealing block after one end of the chromatographic column is inserted can be ensured.

According to another embodiment of the present invention, there is disclosed a pressure relief assembly for a capillary chromatography column coating apparatus, wherein the outer wall of the sealed housing is made of a transparent material.

By adopting the scheme, the sealing shell can be conveniently observed from the outside by an operator.

According to another embodiment of the present invention, there is disclosed a pressure relief assembly for a capillary column coating apparatus, further comprising an alarm in electrical communication with the trigger member.

By adopting the scheme, the trigger component starts the alarm to respond, so that the coating process can be prompted to be completed by an operator, and the plugging operation can be carried out in time.

Has the advantages that:

the pressure relief assembly for the capillary chromatographic column coating device is characterized in that a coating liquid outflow end of a gas chromatographic column is accommodated by a sealed sealing shell to prevent the coating liquid from flowing out or volatilizing, a trigger mechanism is arranged in the sealing shell, and the trigger mechanism is started after the coating liquid flows out and controls a pressure unit to stop supplying air to stop coating the gas chromatographic column. On the one hand, the coating liquid is effectively prevented from volatilizing, on the other hand, the pressure is kept to avoid the contact of the external air and the coating liquid in the gas chromatographic column, and meanwhile, the pressure unit can be closed in time to stop the coating process. The problem of among the prior art coating liquid volatilize the poisoning easily after spilling over is solved.

Drawings

FIG. 1 is a schematic diagram of a pressure relief assembly for a capillary chromatography column coating apparatus in an embodiment of the invention;

FIG. 2 is a schematic structural diagram of a sealed housing of a pressure relief assembly for a capillary chromatography column coating apparatus in an embodiment of the invention.

Description of reference numerals:

1: a gas chromatography column; 2: a pressure unit; 3: a vent line; 4: coating liquid; 5: sealing the container;

10: sealing the shell;

110: an accommodating space; 111: a bottom wall;

120: sealing the opening; 121: a sealing block;

130: cleaning the cabin door;

20: a pressure relief mechanism;

210: a trigger member; 211: a pressure sensor;

212: a deposition section; 213: replacing the pad;

220: a switch member; 230: an electric wire;

30: and fixing the bracket.

Detailed Description

The following description of the embodiments of the present invention is provided for illustrative purposes, and other advantages and effects of the present invention will become apparent to those skilled in the art from the present disclosure. While the invention will be described in conjunction with the preferred embodiments, it is not intended that features of the invention be limited to these embodiments. On the contrary, the invention is described in connection with the embodiments for the purpose of covering alternatives or modifications that may be extended based on the claims of the present invention. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present invention. The invention may be practiced without these particulars. Moreover, some of the specific details have been left out of the description in order to avoid obscuring or obscuring the focus of the present invention. It should be noted that the embodiments and features of the embodiments may be combined with each other without conflict.

It should be noted that in this specification, like reference numerals and letters refer to like items in the following drawings, and thus, once an item is defined in one drawing, it need not be further defined and explained in subsequent drawings.

In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings or orientations or positional relationships that are conventionally placed when the products of the present invention are used, and are only used for convenience in describing the present invention and simplifying the description, but do not indicate or imply that the devices or elements indicated must have specific orientations, be configured in specific orientations, and operate, and thus, should not be construed as limiting the present invention.

The terms "first," "second," and the like are used solely to distinguish one from another and are not to be construed as indicating or implying relative importance.

In the description of the present embodiment, it should be further noted that, unless explicitly stated or limited otherwise, the terms "disposed," "connected," and "connected" are to be interpreted broadly, e.g., as a fixed connection, a detachable connection, or an integral connection; 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 meanings of the above terms in the present embodiment can be understood in specific cases by those of ordinary skill in the art.

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