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CN-224220805-U - Knife type chromatographic column assembly, heat preservation seat matched with same and plate type column box

CN224220805UCN 224220805 UCN224220805 UCN 224220805UCN-224220805-U

Abstract

The utility model provides a knife type chromatographic column assembly, a heat preservation seat and a plate type column box matched with the knife type chromatographic column assembly, wherein the knife type chromatographic column assembly comprises a heat preservation cover plate, an annular chromatographic column is arranged on one side of the heat preservation cover plate, the annular chromatographic column is connected with the cover plate through an air inlet end and an air outlet end, the air inlet end is an air supply port, the air outlet end is an air outlet port used for inputting and outputting gas, a heat conducting block is embedded in the annular chromatographic column and tightly attached to the annular chromatographic column to form a drawing and inserting structure, when the chromatographic column is replaced, the chromatographic column is replaced only by being plugged and pulled out from one side of the column box, and the knife type chromatographic column assembly heat preservation seat matched with the knife type chromatographic column assembly is provided with a U-shaped groove matched with the knife type chromatographic column assembly. The plate type column box comprises a knife type chromatographic column assembly and a heat preservation seat, is simple in structure, can be pulled out from one side of the plate type column box, and can be inserted into the column box after being replaced, so that the replacement of the chromatographic column is completed, the operation is simple, the disassembly and assembly are convenient, and the quick replacement of the chromatographic column can be realized.

Inventors

  • MA JIANSHE
  • Shi Canqi
  • ZHANG JIE
  • CHEN HUI
  • LI SHUO
  • WANG BAOFENG
  • LI YANGYANG
  • CHEN YUEZHEN

Assignees

  • 河南中分仪器股份有限公司

Dates

Publication Date
20260512
Application Date
20241127

Claims (9)

  1. 1. The utility model provides a sword formula chromatographic column subassembly, its characterized in that includes heat preservation apron (4), and heat preservation apron (4) one side sets up annular chromatographic column (5), and annular chromatographic column (5) are connected with apron (4) through inlet end (501) and exhaust end (502), inlet end (501) tip is air supply mouth (401), and exhaust end (502) tip is gas vent (402), and air supply mouth (401) and gas vent (402) are used for gaseous input and output, annular chromatographic column (5) are embedded to establish heat conduction piece (6), and chromatographic column (5) are closely laminated with heat conduction piece (6), form and take out and insert the structure.
  2. 2. A cartridge holder for a cartridge assembly, the cartridge holder cooperating with the cartridge assembly of claim 1, wherein the holder is provided with a "U" shaped recess (206) to accommodate the cartridge assembly.
  3. 3. A plate column box comprises a knife type chromatographic column assembly according to claim 1 and a heat preservation seat according to claim 2, and is characterized in that a groove a (205) matched with a heating plate (3) is formed in one side of the heat preservation seat, the heating plate (3) is limited, an elastic heat preservation side plate b (203) is matched with the other side of the heat preservation seat, an elastic force is applied to the elastic heat preservation side plate b (203) to enable a heat conducting block (6) to be closely attached to the heating plate (3), a heat preservation side plate a (201) is arranged on the other side of the heating plate (3) to form a heat preservation cavity with a U-shaped groove in the middle of the heat preservation cavity, and the box body is arranged on the outer surface of the heat preservation cavity.
  4. 4. A plate type column box according to claim 3, wherein the heat-insulating side plate b (203) is provided with a through hole (204) for accommodating a pressure spring (7), one end of the pressure spring (7) is abutted against the box body, and the other end of the pressure spring (7) is abutted against the heat conducting block (6) to enable the heat conducting block (6) to be tightly attached to the heating plate (3).
  5. 5. A plate column box according to claim 4, wherein the box body comprises an outer shell body (1), and the outer shell body (1) is provided with a side fixing shell side plate (8) to form a box body with one side free of a cover.
  6. 6. The plate type column box of claim 5, wherein the pressure spring (7) is composed of a pressing sheet (710) and a mounting seat (720), the pressing sheet (710) comprises a first elastic sheet (711) and a second elastic sheet (712), one end of the first elastic sheet (711) is connected with one end of the second elastic sheet (712), the first elastic sheet and the second elastic sheet are at an obtuse angle alpha, the other end of the first elastic sheet (711) is provided with a first bending part (713), the first elastic sheet and the second elastic sheet are at an obtuse angle beta, the other end of the second elastic sheet (712) is provided with a second bending part (714), and the first bending part (713), the first elastic sheet (711), the second elastic sheet (712) and the second bending part (714) are formed by bending a plate; The mounting seat (720) comprises a first mounting seat (721) and a second mounting seat (722), the first mounting seat (721) is in a T shape and is fixedly connected with the lower surface of the first bending part (713), the second mounting seat (722) is in an inverted T shape and is fixedly connected with the upper surface of the second bending part (714), and the pressing sheet (710) is fixedly connected with the shell side plate (8) through the mounting seat (720); The working stroke of the pressing sheet (710) is larger than the depth of the through hole (204), and the joint of the first elastic sheet (711) and the second elastic sheet (712) in the pressing sheet (710) passes through the through hole (204) to be in contact with the heat conducting block (6), so that the heat conducting block (6) and the heating plate (3) are tightly attached.
  7. 7. A plate type column box according to claim 3, wherein the connecting members (301) are provided on both sides of the heating plate (3), and the heating plate (3) is fixedly connected with the inner wall of the outer casing body (1) through the connecting members (301).
  8. 8. A plate column box according to claim 7, wherein the connection member (301) is a heat insulating material.
  9. 9. A plate column box according to claim 4, wherein the heating plate (3) is heated by a metal plate, and is provided with a heating element and a temperature measuring element.

Description

Knife type chromatographic column assembly, heat preservation seat matched with same and plate type column box Technical Field The utility model belongs to the field of gas chromatographic columns, and particularly relates to a knife type chromatographic column assembly, a heat preservation seat matched with the knife type chromatographic column assembly and a plate type column box. Background The chromatographic column in the chromatographic detection equipment needs to keep a stable temperature environment to ensure the normal operation of chromatographic detection. After long-term use, the separation effect of the chromatographic column is reduced, the chromatographic column needs to be replaced, and the conventional chromatographic column temperature control device is mainly divided into two types, namely a wind bath type column box and a plate type heating column box, wherein the wind bath type column box has the characteristics of convenience in replacing the chromatographic column, poor temperature uniformity and long stability time, and the plate type heating column box has the characteristics of good temperature uniformity and difficulty in replacing the chromatographic column. The prior art (2016102406428) discloses a heat preservation box of a gas chromatographic column, which consists of a metal outer shell with a cover body, a heat preservation layer, a heating shell with a cover body and a heating source with an electric heating rod, wherein the gas chromatographic column is arranged in a heating space between the heating source and the heating shell, so that the gas chromatographic column is heated and preserved, but when the chromatographic column needs to be replaced, the metal outer shell needs to be disassembled, and the heating shell can be replaced after the heating shell is quite inconvenient. The prior art (2012207279498) discloses a chromatographic column heating heat preservation box and a rapid gas chromatography device using the same, an annular chromatographic installation annular cavity is formed between a heating shell and a heating inner core, and a cover plate is fixedly arranged at the front ends of the heating shell and the heating inner core, but the operation is complex when the chromatographic column is replaced. Disclosure of utility model Aiming at the technical problems in the prior art, the utility model provides a knife type chromatographic column assembly, a heat preservation seat matched with the knife type chromatographic column assembly and a plate type column box. The technical scheme adopted by the utility model is realized by the following steps: The utility model provides a sword formula chromatographic column subassembly, includes the heat preservation apron, and heat preservation apron one side sets up annular chromatographic column, and annular chromatographic column passes through inlet end and exhaust end 502) and apron connection, inlet end tip is the air supply mouth, and the exhaust end tip is the gas vent, and air supply mouth and gas vent are used for gaseous input and output, the embedded heat conduction piece that establishes of annular chromatographic column, chromatographic column and heat conduction piece closely laminate, form and take out and insert the structure. And the heat preservation seat is matched with the knife type chromatographic column assembly, and is provided with a U-shaped groove for accommodating the knife type chromatographic column assembly. A plate column box comprises the knife type chromatographic column assembly and a heat preservation seat, wherein a groove a matched with a heating plate is formed in one side of the heat preservation seat, the heating plate is limited, an elastic heat preservation side plate b is matched with the other side of the heat preservation seat, an elastic force is applied to the elastic heat preservation side plate b to enable a heat conduction block to be tightly attached to the heating plate, the heat preservation side plate a is arranged on the other side of the heating plate to form a heat preservation cavity with a U-shaped groove in the middle, and the box body is arranged on the outer surface of the heat preservation cavity. Further, a through hole for accommodating a pressure spring is formed in the heat preservation side plate b, one end of the pressure spring abuts against the box body, and the other end of the pressure spring abuts against the heat conducting block to enable the heat conducting block to be tightly attached to the heating plate. Further, the box body comprises an outer shell body, and an outer shell side plate is fixed on the side face of the outer shell body to form a box body with one side free of a cover. The compression spring is characterized in that the compression spring comprises a compression spring and a mounting seat, wherein the compression spring comprises a first elastic piece and a second elastic piece, one end of the first elastic piece is connected