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CN-224216615-U - Conductivity and pH value measurement inspection device

CN224216615UCN 224216615 UCN224216615 UCN 224216615UCN-224216615-U

Abstract

The utility model relates to the technical field of power plant water sample detection, in particular to a conductivity and pH value measurement and inspection device. The device comprises a sample inlet pipe, a first three-way valve, a second three-way valve and a third three-way valve, wherein one end of the sample inlet pipe is connected with a water sample of a power plant, an inlet of the first three-way valve is communicated with the other end of the sample inlet pipe, and an inlet of the second three-way valve is communicated with a first outlet of the first three-way valve. According to the utility model, the inlet of the first three-way valve is communicated with the second outlet of the first three-way valve, the second outlet of the third three-way valve is communicated with the inlet of the third three-way valve, the water sample of the power plant can flow into the outlet pipe through the inlet pipe, and the conductivity of the water sample of the power plant can be detected by the standard conductivity meter.

Inventors

  • ZHOU YANG
  • LIU GUANGYAO
  • HAN YING
  • ZHANG CHUANXI
  • BI YING
  • LIU DONG
  • LIANG JUNCHANG

Assignees

  • 华电电力科学研究院有限公司
  • 华电国际电力股份有限公司十里泉发电厂

Dates

Publication Date
20260508
Application Date
20250506

Claims (9)

  1. 1. A conductivity and pH measurement verification device, comprising: The sample injection device comprises a sample injection tube (1), wherein one end of the sample injection tube (1) is connected with a water sample of a power plant; the inlet of the first three-way valve (2) is communicated with the other end of the sample injection tube (1); A second three-way valve (3), an inlet of the second three-way valve (3) is communicated with a first outlet of the first three-way valve (2); The inlet of the mixing column (4) is communicated with the first outlet of the second three-way valve (3); the inlet of the hydrogen column (5) is respectively communicated with the second outlet of the second three-way valve (3) and the outlet of the mixing column (4); The first outlet of the third three-way valve (6) is communicated with the outlet of the hydrogen column (5), the second outlet of the third three-way valve (6) is communicated with the second outlet of the second three-way valve (3), the inlet of the third three-way valve (6) is connected with a sampling tube (7), and a standard conductivity meter (8) is arranged on the sampling tube (7); And the ammonia adding component is communicated with the sampling pipe (7) and is positioned between the third three-way valve (6) and the standard electric conductivity meter (8).
  2. 2. The conductivity and pH measurement verification device according to claim 1, wherein said ammonia addition assembly comprises: the standard liquid bottle (9) is communicated with the sampling tube (7) through a dosing tube (10), and ammonia water is arranged in the standard liquid bottle (9).
  3. 3. The conductivity and pH measurement verification device according to claim 2, wherein said ammonia addition assembly further comprises: The dosing pump (11) is arranged on the dosing pipe (10), and the dosing pump (11) is suitable for conveying ammonia water in the standard liquid bottle (9) to the sampling pipe (7).
  4. 4. The conductivity and pH measurement verification device according to claim 1, further comprising: the pressure release pipe (12), one end of the pressure release pipe (12) is communicated with the sample injection pipe (1); and a pressure release valve (13) arranged on the pressure release pipe (12).
  5. 5. The conductivity and pH measurement and inspection device according to claim 4, wherein the sample tube (1) is provided with a first flowmeter (14), the first flowmeter (14) being located between the first three-way valve (2) and the pressure release tube (12).
  6. 6. A conductivity and pH measurement test device according to claim 3, characterized in that the dosing tube (10) is provided with a second flowmeter (15), the second flowmeter (15) being located between the dosing pump (11) and the third three-way valve (6).
  7. 7. The conductivity and pH measurement and inspection device according to claim 1, wherein a third flowmeter (16) is provided on the outlet pipe (7), the third flowmeter (16) being located on a side of the standard conductivity meter (8) remote from the third three-way valve (6).
  8. 8. The conductivity and pH measurement test device according to claim 1, wherein the hydrogen column (5) is filled with a cationic resin.
  9. 9. The conductivity and pH measurement test device according to claim 1, wherein the mixing column (4) is filled with a male-female resin.

Description

Conductivity and pH value measurement inspection device Technical Field The utility model relates to the technical field of power plant water sample detection, in particular to a conductivity and pH value measurement and inspection device. Background When a water sample of a power plant is measured, conductivity detection and PH value detection are required to be carried out on the water sample, wherein the conductivity detection also comprises conventional conductivity detection and hydrogen conductivity detection. In general, the measurement can be performed by a conductivity meter and a PH meter. However, due to objective conditions such as damage and temperature, errors may occur in the detection results of the conductivity meter and the PH meter, and the current test on the meter is lacking in the water sample measurement process of the power plant. Disclosure of utility model In view of the above, the present utility model provides a conductivity and pH measurement and inspection device to solve the problem of lack of inspection of the instrument in the prior art. The utility model provides a conductivity and pH value measurement and inspection device, which comprises: One end of the sampling tube is connected with a water sample of the power plant; The inlet of the first three-way valve is communicated with the other end of the sample inlet pipe; The inlet of the second three-way valve is communicated with the first outlet of the first three-way valve; The inlet of the mixing column is communicated with the first outlet of the second three-way valve; The inlet of the hydrogen column is respectively communicated with the second outlet of the second three-way valve and the outlet of the mixing column; the first outlet of the third three-way valve is communicated with the outlet of the hydrogen column, the second outlet of the third three-way valve is communicated with the second outlet of the second three-way valve, the inlet of the third three-way valve is connected with a sampling pipe, and a standard electric conductivity meter is arranged on the sampling pipe; And the ammonia adding component is communicated with the outlet pipe and is positioned between the third three-way valve and the standard electric conductivity meter. According to the application, the inlet of the first three-way valve is communicated with the second outlet of the first three-way valve, the second outlet of the third three-way valve is communicated with the inlet of the third three-way valve, the water sample of the power plant can flow into the outlet pipe through the inlet pipe, and the conductivity of the water sample of the power plant can be detected by the standard conductivity meter. The inlet of the first three-way valve is communicated with the first outlet of the first three-way valve, the inlet of the second three-way valve is communicated with the second outlet of the second three-way valve, the first outlet of the third three-way valve is communicated with the inlet of the third three-way valve, a power plant water sample can flow into a hydrogen column through a sample inlet pipe and then enter a sample outlet pipe, and the standard conductivity meter can detect the hydrogen conductivity of the power plant water sample. And the PH value of the water sample of the power plant can be obtained through calculation according to the conductivity and the hydrogen conductivity. The inlet of the first three-way valve is communicated with the first outlet of the first three-way valve, the inlet of the second three-way valve is communicated with the first outlet of the second three-way valve, the first outlet of the third three-way valve is communicated with the inlet of the third three-way valve, ammonia is added into the outlet pipe through the ammonia adding component, a conductivity meter to be detected is arranged at the outlet position of the outlet pipe, measurement values of the conductivity meter to be detected and a standard conductivity meter can be recorded at the same time, the inspection of the conductivity meter to be detected can be completed, and measurement errors of the conductivity meter to be detected are obtained. The PH value instrument to be detected can be arranged at the outlet position of the sampling tube, the same connection method is used, the measurement value of the standard conductivity meter is calculated and converted into the PH value, the PH value instrument to be detected can be inspected, and the measurement error of the PH value instrument to be detected can be obtained. In an alternative embodiment, the ammonia addition assembly comprises: and the standard liquid bottle is communicated with the outlet pipe through a dosing pipe, and ammonia water is arranged in the standard liquid bottle. In an alternative embodiment, the ammonia addition assembly further comprises: The dosing pump is arranged on the dosing pipe and is suitable for conveying ammonia water in the standard liquid bot