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CN-121978260-A - Chromatograph temperature monitoring device

CN121978260ACN 121978260 ACN121978260 ACN 121978260ACN-121978260-A

Abstract

The application relates to a chromatograph temperature monitoring device, which belongs to the technical field of chemical analysis equipment, and structurally comprises a column temperature box, wherein a first connecting port is arranged at the top of the column temperature box, a communication pipeline is arranged on the first connecting port in the column temperature box, a second connecting port is arranged at the bottom of the column temperature box, a monitoring cavity is arranged in the middle of the communication pipeline, one end of the monitoring cavity is communicated with the communication pipeline, the other end of the monitoring cavity is arranged outside the column temperature box in a penetrating manner, a chromatographic column is arranged in the column temperature box, the top end of the chromatographic column is arranged on the first connecting port through the communication pipeline, the bottom end of the chromatographic column is connected with the second connecting port, a heating component is arranged on the inner wall of the column temperature box, and a circulating air cooling component is arranged on one surface of the column temperature box.

Inventors

  • SONG LONGFEI
  • SHEN BO
  • ZHANG HUIYONG
  • LI JIE

Assignees

  • 瑞莱谱(杭州)医疗科技有限公司

Dates

Publication Date
20260505
Application Date
20260408

Claims (10)

  1. 1. A chromatograph temperature monitoring device is characterized by comprising a column temperature box (1), wherein a first connecting port (11) is arranged at the top of the column temperature box (1), a communication pipeline (2) is arranged on the first connecting port (11) in the column temperature box (1), a second connecting port (12) is arranged at the bottom of the column temperature box (1), a monitoring cavity (3) is arranged in the middle of the communication pipeline (2), one end of the monitoring cavity (3) is communicated with the communication pipeline (2), the other end of the monitoring cavity (3) penetrates through the outside of the column temperature box (1), a chromatographic column (7) is arranged in the column temperature box (1), the top end of the chromatographic column (7) is arranged on the first connecting port (11) through the communication pipeline (2), the bottom end of the chromatographic column (7) is connected with the second connecting port (12), a heating component (8) is arranged on the inner wall of the column temperature box (1), and one surface of the column temperature box (1) is provided with a circulating air cooling component (9).
  2. 2. The chromatograph temperature monitoring device according to claim 1, wherein a baffle plate (31) is arranged in the monitoring chamber (3), a sliding hole (311) is formed in the middle of the baffle plate (31), a sliding rod (32) is arranged in the sliding hole (311) in a sliding mode, an adjusting opening (321) is formed in one end of the sliding rod (32), a temperature monitoring component (33) is arranged in the adjusting opening (321), and a flow monitoring component (34) is arranged at the other end of the sliding rod (32).
  3. 3. The chromatograph temperature monitoring device according to claim 2, wherein the temperature monitoring component (33) comprises a sleeve (331), an observation shaft (332) and a bimetallic strip (333), wherein a sliding block (3321) is arranged at one end of the observation shaft (332), a sliding rail (3311) is arranged at one end in the sleeve (331), the sliding rail (3311) is spiral, one end of the observation shaft (332) is arranged in the sleeve (331), the sliding block (3321) is in sliding connection with the sliding rail (3311), the other end of the sleeve (331) is arranged in the adjusting opening (321) in a sliding manner, one end of the bimetallic strip (333) is fixedly arranged in the sleeve (331), one side of the other end of the bimetallic strip (333) is abutted against one end of the observation shaft (332), a reset hook (334) is arranged at one end of the observation shaft (332), and the reset hook (334) is used for hooking the other side of the other end of the bimetallic strip (333).
  4. 4. A chromatograph temperature monitoring device according to claim 2, wherein the flow monitoring assembly (34) comprises a detection plate (341), a support rod (342), a tension spring (343) and a matching rod (344), one end of the support rod (342) is arranged on the inner wall of the communicating pipeline (2), one surface of the detection plate (341) is rotatably arranged on the other end of the support rod (342), one end of the detection plate (341) is rotatably arranged on one end of the matching rod (344), the other end of the matching rod (344) is slidably arranged on the other end of the sliding rod (32), one end of the tension spring (343) is rotatably arranged on one surface of the detection plate (341), and the other end of the tension spring (343) is rotatably arranged on the monitoring chamber (3).
  5. 5. A chromatograph temperature monitoring device according to claim 3 is characterized in that a first identification area (4) is arranged at one end of the observation shaft (332), a second identification area (5) is arranged on the observation shaft (332) at one side of the first identification area (4), the first identification area (4) and the second identification area (5) are circumferentially arranged on the observation shaft (332), normal identifications (41) are arranged in the first identification area (4), and high-temperature identifications (51) and cutoff identifications (52) are arranged in the second identification area (5).
  6. 6. The chromatograph temperature monitoring device according to claim 3, wherein an unlocking structure (6) is arranged at the bottom of the sleeve (331), the unlocking structure (6) comprises a trigger block (61), an unlocking cavity (62), a locking pin (63) and an unlocking spring (64), one end of the unlocking cavity (62) is arranged in a wall body at the bottom of the sleeve (331), one end of the trigger block (61) is slidably arranged at one end of the unlocking cavity (62), the other end of the trigger block (61) is arranged in the sleeve (331), the unlocking spring (64) is sleeved on the trigger block (61), one end of the unlocking spring (64) is fixedly arranged at the bottom of the sleeve (331), the other end of the unlocking spring (64) is fixedly arranged at the other end of the trigger block (61), the locking pin (63) is slidably arranged at the other end of the unlocking cavity (62), an unlocking inclined surface (631) is arranged at the bottom of the locking pin (63), the unlocking inclined surface (631) of the locking pin (63) is slidably arranged at the other end of the triggering block (61), and the locking groove (3211) is matched with the locking groove (321).
  7. 7. A chromatograph temperature monitoring device according to claim 3, characterized in that a third identification structure (335) is arranged in a sliding rod (32) of the adjusting port (321), the third identification structure (335) comprises a sliding cavity (3351), a driving cavity (3352), an identification cylinder (3353), a driving rod (3355), a driving piston (3356) and a return spring (3357), the sliding cavity (3351) is arranged in a wall of the side part of the adjusting port (321), one end of the identification cylinder (3353) is arranged in the sliding cavity (3351) in a sliding manner, the other end of the identification cylinder (3353) is circumferentially provided with a compound identification (3354), the driving cavity (3352) is arranged in the sliding rod (32) at the bottom of the adjusting port (321), the driving piston (3356) is arranged in the driving cavity (3352) in a sliding manner, one end of the driving rod (3355) is fixedly arranged at one end of the driving piston (3356), one end of the driving rod (3355) is arranged in the sliding manner in the sliding rod (3355) in a penetrating manner, one end of the adjusting rod (3355) is arranged in the sliding rod (3355) and is connected with the other end of the driving rod (3355) in a sliding manner, the sliding rod (3355) is arranged in the sliding rod (33) in the sliding rod (32) in the sliding rod (33) in the sliding manner, one end of the return spring (3357) is fixedly arranged at the other end of the driving rod (3355), and the other end of the return spring (3357) is fixedly arranged at the bottom of the adjusting port (321).
  8. 8. The chromatograph temperature monitoring device according to claim 1, wherein the heating component (8) comprises a resistance heating film (81) and a micro switch (82), the resistance heating film (81) is arranged in the column temperature box (1), the micro switch (82) is arranged in the other end of the monitoring chamber (3), and the micro switch (82) is connected with the resistance heating film (81).
  9. 9. The chromatograph temperature monitoring device according to claim 1, wherein the circulating air cooling assembly (9) comprises a centrifugal fan (91), a filter screen (92), an air inlet window (93), an air channel cavity (94) and a grid (95), two ends of the centrifugal fan (91) are divided into an air suction end (911) and an air discharge end (912), the centrifugal fan (91) is fixedly arranged on one surface of the column temperature box (1), the air suction end (911) of the centrifugal fan (91) is arranged in the column temperature box (1), the air discharge end (912) of the centrifugal fan (91) is arranged outside the column temperature box (1), the air channel cavity (94) is arranged in a wall body at the bottom of the column temperature box (1), a negative pressure suction port (913) is arranged at the side part of the centrifugal fan (91), the negative pressure suction port (913) is communicated with one end of the air channel cavity (94), an air outlet (13) is arranged at the bottom of the column temperature box (1), the air outlet (13) is communicated with the air channel cavity (94), the air outlet (95) is arranged on the other surface of the column temperature box (95), the air inlet window (93) is communicated with the other end of the air channel cavity (94), and the filter screen (92) is arranged on the air inlet window (93).
  10. 10. The chromatograph temperature monitoring device according to claim 9, characterized in that an observation window (35) is arranged at the other end of the monitoring chamber (3), and a replacement door (14) is arranged on the column temperature box (1) above the air inlet window (93).

Description

Chromatograph temperature monitoring device Technical Field The application relates to the technical field of chemical analysis equipment, in particular to a chromatograph temperature monitoring device. Background The chromatograph is used as a high-precision analysis instrument, the working temperature of a chromatographic column which is a core component of the chromatograph has decisive influence on the separation effect, analysis precision and repeatability of a sample, the chromatograph comprises a column temperature box which is respectively connected with an automatic sampler and a detector, an existing chromatograph temperature monitoring device mostly adopts an independent temperature sensor and a flow monitoring module, temperature and flow signals are collected through electronic elements and transmitted to a control system, and then the control system drives a heating and cooling assembly to adjust the temperature, part of the chromatograph is integrated with a monitoring function, but the chromatograph is loose in structure and needs to rely on a complex electric control circuit to realize signal linkage, however, the chromatograph has the problems that the electronic elements are easy to be subjected to electromagnetic interference, the number of fault points and the maintenance cost is high, the signal transmission is delayed, and the chromatograph is difficult to quickly respond to a compound fault condition. The patent (CN 111089927A) discloses a chromatographic column temperature control device of a chromatograph and a control method thereof, belongs to the technical field of chromatographic column temperature control of the chromatograph, and aims to solve the technical problems of providing an improvement of a chromatographic column temperature control device hardware structure of the chromatograph and a control method thereof, wherein the technical scheme is that the chromatographic column temperature control device comprises a column box body, the column box body is a box body with four sealed sides, a column box heat preservation layer is arranged on the inner side of the column box body, a first temperature measuring resistance sensor, a chromatographic column, a heating device, a second temperature measuring resistance sensor, a heat dissipation motor, a blower motor and an electrical appliance control box are arranged in the column box body, a heat dissipation port is arranged at the bottom of the column box body, a hollowed-out heat dissipation fin is further arranged at the position of the heat dissipation port, the chromatographic column is arranged in the middle of the column box body through a support, a first temperature measuring resistance sensor is arranged on the upper side of the chromatographic column in a separated mode, a heating device is arranged on the lower side of the chromatographic column, the temperature measuring device can realize the multi-point and heating of the column box body, the temperature of the chromatographic column body can be cooperated with the heating device, the temperature measuring device can realize the temperature monitoring, the temperature sensing and the temperature sensing state can not be controlled by the temperature sensing and the temperature sensing device, but can not be in a combined with the fault condition, but the fault control logic can realize, and the fault control state can not realize, and the control, and the fault condition can not realize the control, and the fault condition can realize the control, and the control conditions can not and the control, and the control. With respect to the related art described above, the inventors consider that there is a disadvantage in that it is difficult to accurately adapt to the multi-station composite fault monitoring requirement. Disclosure of Invention In order to solve the technical problems, the application provides a chromatograph temperature monitoring device. The application provides a chromatograph temperature monitoring device, which adopts the following technical scheme: A chromatographic instrument temperature monitoring device comprises a column temperature box, wherein a first connecting port is arranged at the top of the column temperature box, a communication pipeline is arranged on the first connecting port in the column temperature box, a second connecting port is arranged at the bottom of the column temperature box, a monitoring cavity is arranged in the middle of the communication pipeline, one end of the monitoring cavity is communicated with the communication pipeline, the other end of the monitoring cavity is arranged outside the column temperature box in a penetrating mode, a chromatographic column is arranged in the column temperature box, the top end of the chromatographic column is arranged on the first connecting port through the communication pipeline, the bottom end of the chromatographic column is connected with the second connecting port, a heating