Search

CN-224216500-U - Auxiliary calibration equipment for SF6 gas micro-water density sensor

CN224216500UCN 224216500 UCN224216500 UCN 224216500UCN-224216500-U

Abstract

The utility model relates to the field of SF6 gas micro-water density, and discloses auxiliary calibration equipment for an SF6 gas micro-water density sensor, which comprises a sensor, wherein the sensor is placed in a box body, the bottom surface in the box body is fixedly connected with a mounting seat, the sensor is clamped in the mounting seat, one side of the box body, corresponding to an air inlet pipe of the sensor, is fixedly connected with an additional box, a multi-parameter gas calibration structure is arranged in the additional box, a sealing connection structure is arranged between the air inlet pipe of the sensor and the multi-parameter gas calibration structure, a data acquisition processing system is arranged at one side in the box body, the top end of the sensor is connected with a wiring of the data acquisition processing system, a temperature control system is arranged at the side, opposite to the data acquisition processing system, of the box body, and the multi-parameter gas calibration structures such as a humidity generator, a standard gas tank, a pressure calibrator and the like are integrated in the additional box, so that the layout of a gas input pipeline is optimized, the accurate pipeline design and the sealing connection structure are realized, and gas leakage is effectively avoided.

Inventors

  • MAN XUEFENG
  • XUE AILING
  • YUAN YA
  • YUAN KAI

Assignees

  • 西安卓锐电气科技有限公司

Dates

Publication Date
20260508
Application Date
20250512

Claims (6)

  1. 1. The auxiliary calibration device for the SF6 gas micro-water density sensor comprises a sensor (3) and is characterized in that the sensor (3) is placed in a box body (1), an installation seat (9) is fixedly connected to the inner bottom surface of the box body (1), the sensor (3) is fixedly connected to one side, corresponding to an air inlet pipe of the sensor (3), of the box body (1) in a clamping mode, an additional box (2) is fixedly connected to one side, corresponding to the air inlet pipe of the sensor (3), of the box body (1), a multi-parameter gas calibration structure is arranged in the additional box (2), a sealing connection structure is arranged between the air inlet pipe of the sensor (3) and the multi-parameter gas calibration structure, a data acquisition processing system (6) is arranged on one side of the box body (1), a top end head of the sensor (3) is connected with the data acquisition processing system (6) in a wiring mode, and a temperature control system (8) is arranged on the side, opposite to the data acquisition processing system (6), of the box body (1).
  2. 2. The auxiliary calibration device for the SF6 gas micro-water density sensor of claim 1, wherein the multi-parameter gas calibration structure comprises an air receiving pipe (4), a main pipe (11) and branch pipes (12), one end of the air receiving pipe (4) is connected with one side of the box body (1) connected with the additional box (2) in a penetrating mode, one end of the air receiving pipe (4) in the additional box (2) is fixedly connected with the main pipe (11), the air receiving pipe (4) is connected with the cylindrical surface of the main pipe (11) in a penetrating mode, three branch pipes (12) distributed in a straight line equidistance are connected in a penetrating mode on one side of the cylindrical surface of the main pipe (11) away from the air receiving pipe (4), and valves are installed on the branch pipes (12).
  3. 3. The auxiliary calibration device for the SF6 gas micro-water density sensor is characterized in that the multi-parameter gas calibration structure comprises a humidity generator (13), a standard gas tank (14), a pressure calibrator (15) and a cover plate (10), wherein the humidity generator (13), the standard gas tank (14) and the pressure calibrator (15) are installed in the additional box (2), the humidity generator (13), the standard gas tank (14) and the pressure calibrator (15) are respectively connected with one ends of three branch pipes (12) deviating from a main pipe (11), square holes are formed in one sides of the additional box (2) deviating from a box body (1), and the cover plate (10) is clamped in the square holes.
  4. 4. The auxiliary calibration device for the SF6 gas micro-water density sensor is characterized in that the sealing connection structure comprises a sleeve (5) and annular convex blocks (19), the annular convex blocks (19) are fixedly connected to the inner surface of the sleeve (5) close to two ends, internal threads are formed in the inner surface of the annular convex blocks (19), two ends of the sleeve (5) are respectively sleeved on one end of the gas connection pipe (4) in the box (1) and the outer side of an air inlet pipe of the sensor (3), external threads are formed in one end of the gas connection pipe (4) in the box (1) on the outer cylindrical surface, external threads are formed in the outer cylindrical surface of the air inlet pipe of the sensor (3), and the internal threads of the two annular convex blocks (19) in the sleeve (5) are respectively connected with the gas connection pipe (4) and the external threads of the sensor (3).
  5. 5. The SF6 gas micro-water density sensor auxiliary calibration device according to claim 4, wherein the sealing connection structure further comprises a sealing tube (16), a fixing lug (18) and an annular groove (17), one end of the sealing tube (16) is fixedly connected with the fixing lug (18), the sealing tube (16) is arranged in the sleeve (5), the fixing lug (18) is fixedly connected with the annular lug (19) which is far away from the gas receiving tube (4), the annular groove (17) is formed in one end of the gas receiving tube (4) in the box body (1), and the sealing tube (16) is inserted into the annular groove (17).
  6. 6. The auxiliary calibration device for the SF6 gas micro-water density sensor is characterized in that a circular hole is formed in a penetrating mode in one side, away from the additional box (2), of the box body (1), an air outlet pipe (7) is inserted into the circular hole, the air outlet pipe (7) is slidably connected with the circular hole of the box body (1), and one end, in the box body (1), of the air outlet pipe (7) is sleeved on the outer side of the air outlet pipe of the sensor (3).

Description

Auxiliary calibration equipment for SF6 gas micro-water density sensor Technical Field The utility model relates to the field of SF6 gas micro-water density, in particular to auxiliary calibration equipment for an SF6 gas micro-water density sensor. Background SF6 gas micro water density sensor is widely applied in power systems and other industrial fields, and is mainly used for monitoring key parameters such as micro water content and density in SF6 gas in real time so as to ensure safety and stability of equipment, and the measurement accuracy of the sensor is important because the parameters are directly related to the insulation performance and operation safety of the equipment. The auxiliary calibration device for the SF6 gas micro-water density sensor has the advantages that the connection of gas input pipelines in part of equipment in the auxiliary calibration device for the SF6 gas micro-water density sensor is complex, the tightness is poor, gas leakage is easy to occur, the pressure and flow stability of calibration gas are affected, the calibration accuracy is further reduced, the integration level of a multi-parameter gas calibration structure is low, such as the layout dispersion of a humidity generator, a standard gas tank, a pressure calibrator and the like, the occupied space is large, the operation is inconvenient, the accurate control of multi-parameter collaborative calibration is difficult, and therefore the auxiliary calibration device for the SF6 gas micro-water density sensor is provided. Disclosure of utility model (One) solving the technical problems Aiming at the defects of the prior art, the utility model provides auxiliary calibration equipment for an SF6 gas micro-water density sensor, which solves the problems. (II) technical scheme In order to achieve the purpose, the auxiliary calibration device for the SF6 gas micro-water density sensor comprises a sensor, wherein the sensor is placed in a box body, an installation seat is fixedly connected to the bottom surface in the box body, the sensor is clamped in the installation seat, an additional box is fixedly connected to one side of the box body, corresponding to an air inlet pipe of the sensor, a multi-parameter gas calibration structure is arranged in the additional box, a sealing connection structure is arranged between the air inlet pipe of the sensor and the multi-parameter gas calibration structure, a data acquisition and processing system is installed on one side in the box body, the top end head of the sensor is connected with a wiring of the data acquisition and processing system, and a temperature control system is installed on the side, opposite to the data acquisition and processing system, in the box body. Preferably, the multi-parameter gas calibration structure comprises a gas connection pipe, a main pipe and branch pipes, wherein one end of the gas connection pipe is in through connection with one side of the box body, which is connected with the additional box, one end of the gas connection pipe in the additional box is fixedly connected with the main pipe, the gas connection pipe is in through connection with the cylindrical surface of the main pipe, one side of the cylindrical surface of the main pipe, which is away from the gas connection pipe, is in through connection with three branch pipes which are distributed along straight lines at equal intervals, and valves are arranged on the branch pipes. Preferably, the multi-parameter gas calibration structure comprises a humidity generator, a standard gas tank, a pressure calibrator and a cover plate, wherein the humidity generator, the standard gas tank and the pressure calibrator are installed in the additional box, the humidity generator, the standard gas tank and the pressure calibrator are respectively connected with one ends of the branch pipes, which deviate from the main pipe, of the branch pipes, a square hole is formed in one side, which deviates from the box body, of the additional box, and the cover plate is clamped in the square hole. Preferably, the sealing connection structure comprises a sleeve and an annular convex block, wherein the annular convex block is fixedly connected to the inner surface of the sleeve close to two ends, internal threads are formed on the inner surface of the annular convex block, two ends of the sleeve are respectively sleeved on one end of the gas receiving pipe in the box body and the outer side of the gas inlet pipe of the sensor, external threads are formed on the outer cylindrical surface of one end of the gas receiving pipe in the box body, external threads are formed on the outer cylindrical surface of the gas inlet pipe of the sensor, and the internal threads of the two annular convex blocks in the sleeve are respectively connected with the gas receiving pipe and the external threads of the sensor. Preferably, the sealing connection structure further comprises a sealing tube, a fixing lug and an annular groove, w