Online sampling and testing device

Abstract

The utility model relates to an on-line sampling and testing device which comprises a raw acid conveying pipeline, a nitrogen conveying pipeline, a pure water conveying pipeline, a test header pipe, a mixer and a pH meter, two sides of the test header pipe are connected with a mixer through a first pipeline and a second pipeline, an original acid quantitative loop and a first valve are arranged on the first pipeline, a water quantity quantitative valve and a second valve are arranged on the second pipeline, and a pH meter is arranged at the mixer; the raw acid conveying pipeline, the nitrogen conveying pipeline and the pure water conveying pipeline are connected to the test header pipe in parallel, a third valve is arranged on the raw acid conveying pipeline, a fourth valve is arranged on the pure water conveying pipeline, and a fifth valve and a sixth valve are arranged on the test header pipe. According to the on-line sampling and testing device disclosed by the utility model, a plurality of different pipelines, mixers and pH meters are arranged, and different valves on the different pipelines are matched to be opened and closed, so that the concentration of conveyed raw acid can be tested on line, the concentration of acid liquor can be adjusted in time, and adverse effects on the quality of subsequent glass fiber cloth are avoided.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of acid concentration detection, especially relates to an on-line sampling testing device. BACKGROUND

[0002] Glass fiber cloth has the advantages of high temperature resistance, ablation resistance, heat insulation, fire prevention, etc., and has stable thermal and dielectric properties at high temperatures. It is widely used in thermal insulation of instruments and electronic devices, and in military, aviation and other fields.

[0003] At present, the post-processing process of glass fiber cloth is as follows: the whole roll of glass fiber cloth is unfolded and placed in an acid washing tank, then a certain concentration of acid is added to the tank, the acid is heated to the required temperature, and the temperature is maintained until the acid leaching is completed; then the glass fiber cloth is placed on a hot cleaning device until the cleaning is completed; the glass fiber cloth washed with water is dried and sintered in an integrated drying and sintering furnace.

[0004] In the above process, the concentration of the acid solution is crucial, otherwise the high concentration of the acid solution in the acid leaching process will affect the corrosion resistance of the glass fiber cloth, and even the strength of the glass fiber cloth. The traditional testing method needs to stop the acid solution in the conveying process to test the concentration of the acid solution in the pipeline, which is very troublesome. TECHNICAL SOLUTION

[0005] The technical problem to be solved by the utility model is to provide an on-line sampling testing device for conveniently detecting and adjusting the concentration of acid solution.

[0006] To solve the above technical problems, the technical scheme of the utility model is as follows: an on-line sampling testing device, the innovation point of which is that it comprises an original acid conveying pipeline, a nitrogen gas conveying pipeline, a pure water conveying pipeline, a testing main pipe, a mixer and a pH meter;

[0007] The two sides of the testing main pipe are connected to the mixer through the cooperation of the first pipeline and the second pipeline, an original acid quantitative ring and a first valve are arranged on the first pipeline in sequence, a water quantity quantitative valve and a second valve are arranged on the second pipeline in sequence, a pH meter for detecting the pH value in the mixer is arranged at the mixer, and a blowdown pipeline is further connected to the mixer, and a blowdown valve is arranged on the blowdown pipeline;

[0008] The original acid delivery pipeline, the nitrogen delivery pipeline and the pure water delivery pipeline are connected to the test main pipe, the connection point of the original acid delivery pipeline and the test main pipe is located at the connection of the test main pipe and the first pipeline, the connection point of the pure water delivery pipeline and the test main pipe is located at the connection of the test main pipe and the second pipeline, a third valve is arranged on the original acid delivery pipeline, a fourth valve is arranged on the pure water delivery pipeline, a fifth valve and a sixth valve are sequentially arranged on the test main pipe, the fifth valve is located on the side close to the original acid delivery pipeline, and the sixth valve is located on the side close to the pure water delivery pipeline, and the connection point of the nitrogen delivery pipeline and the test main pipe is located between the fifth valve and the sixth valve.

[0009] Further, when sample injection is performed, the third valve and the fourth valve are opened, and the first valve, the second valve, the fifth valve, the sixth valve and the blowdown valve are closed;

[0010] When sample testing is performed, the first valve, the second valve, the fifth valve and the sixth valve are opened, and the third valve and the fourth valve are closed;

[0011] When blowdown is performed, the second valve, the fourth valve and the blowdown valve are opened, and the first valve, the third valve, the fourth valve and the fifth valve are closed;

[0012] When pipeline cleaning is performed, the fourth valve and the sixth valve are opened, and the first valve, the second valve, the third valve, the fifth valve and the blowdown valve are closed.

[0013] The online sampling testing device has the advantages that the online sampling testing device can test the concentration of the delivered original acid on line by arranging multiple different pipelines, mixers and pH meters and opening and closing different valves on different pipelines, so that the concentration of the acid liquid can be adjusted in time, and the quality of the subsequent glass fiber cloth is prevented from being adversely affected.

[0014] The online sampling testing device can also be used for measuring high-temperature acid liquid, and the precision and service life of the testing instrument are improved. BRIEF DESCRIPTION OF DRAWINGS

[0015] Figure 1 FIG. 1 is a schematic view of an online sampling testing device according to the present application. DETAILED DESCRIPTION

[0016] In order to further illustrate the technical means and effects adopted by the present application to achieve the predetermined application purposes, the specific embodiments, structures, features and effects of the present application will be described in detail below with reference to the drawings and preferred embodiments.

[0017] As Figure 1The shown online sampling testing device comprises an original acid conveying pipeline 1, a nitrogen gas conveying pipeline 2, a pure water conveying pipeline 3, a testing main pipeline 4, a mixer 5 and a pH meter 6.

[0018] The testing main pipeline 4 is connected with the mixer 5 through the cooperation of the first pipeline 7 and the second pipeline 8, the original acid quantitative ring 9 and the first valve 10 are arranged on the first pipeline 7 in sequence, the water quantitative valve 11 and the second valve 12 are arranged on the second pipeline 8 in sequence, the pH meter 6 is arranged at the mixer 5 for detecting the pH value in the mixer 5, and a blowdown pipeline 17 is further connected to the bottom end of the mixer 5, and a blowdown valve 18 is arranged on the blowdown pipeline 17.

[0019] The original acid conveying pipeline 1, the nitrogen gas conveying pipeline 2 and the pure water conveying pipeline 3 are connected to the testing main pipeline 4, the connection point of the original acid conveying pipeline 1 and the testing main pipeline 4 is located at the connection between the testing main pipeline 4 and the first pipeline 7, the connection point of the pure water conveying pipeline 3 and the testing main pipeline 4 is located at the connection between the testing main pipeline 4 and the second pipeline 8, the third valve 13 is arranged on the original acid conveying pipeline 1, the fourth valve 14 is arranged on the pure water conveying pipeline 3, the fifth valve 15 and the sixth valve 16 are further arranged on the testing main pipeline 4 in sequence, the fifth valve 15 is located on the side close to the original acid conveying pipeline 1, the sixth valve 16 is located on the side close to the pure water conveying pipeline 3, and the connection point of the nitrogen gas conveying pipeline 2 and the testing main pipeline 4 is located between the fifth valve 15 and the sixth valve 16.

[0020] When the sample is injected, the third valve 13 and the fourth valve 14 are opened, and the first valve 10, the second valve 12, the fifth valve 15, the sixth valve 16 and the blowdown valve 18 are closed, so that the original acid is conveyed from the original acid conveying pipeline 1 into the original acid quantitative ring 9, and the pure water is conveyed from the pure water conveying pipeline 3 into the water quantitative valve 11.

[0021] When the sample is tested, the first valve 10, the second valve 12, the fifth valve 15 and the sixth valve 16 are opened, and the third valve 13 and the fourth valve 14 are closed, nitrogen gas is introduced into the testing main pipeline 4 from the nitrogen gas conveying pipeline 2, and the original acid and the pure water are conveyed into the mixer 5 from the original acid quantitative ring 9 and the water quantitative valve 11 respectively by using the nitrogen gas, the acid concentration in the mixer 5 is tested by the pH meter 6 and recorded, and the acid concentration of the original acid is output according to the dilution ratio of the original acid.

[0022] When the blowdown is performed, the second valve 12, the fourth valve 14 and the blowdown valve 18 are opened, and the first valve 10, the third valve 13, the fourth valve 14 and the fifth valve 15 are closed, and the liquid in the mixer 5 is discharged from the blowdown pipeline 17 by using the nitrogen gas.

[0023] When the pipeline is cleaned, the fourth valve 14 and the sixth valve 16 are opened, and the first valve 10, the second valve 12, the third valve 13, the fifth valve 15 and the blowdown valve 18 are closed. After the pure water is delivered from the pure water delivery pipeline 3 to the mixer 5, the blowdown process is repeated, and the cleaning is repeated several times until the pH meter tests that the liquid in the mixer 5 is neutral. This indicates that the mixer 5 is cleaned, and residual acid in the mixer 5 does not affect the accuracy of subsequent tests.

[0024] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed in the preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above disclosed technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications are still within the scope of the present application.

Claims

1. An on-line sampling test device characterized by: The acid delivery pipeline, nitrogen delivery pipeline, pure water delivery pipeline, test main pipe, mixer and pH meter are included. The test main pipe is connected with the mixer through the cooperation of the first pipeline and the second pipeline on two sides, the acid quantitative ring and the first valve are arranged on the first pipeline in sequence, the water quantitative valve and the second valve are arranged on the second pipeline in sequence, the pH meter for detecting the pH value in the mixer is arranged at the mixer, and a blowdown pipeline is further connected to the mixer, and the blowdown valve is arranged on the blowdown pipeline. The acid delivery pipeline, nitrogen delivery pipeline and pure water delivery pipeline are connected with the test main pipe in parallel, the connection point of the acid delivery pipeline and the test main pipe is located at the connection between the test main pipe and the first pipeline, the connection point of the pure water delivery pipeline and the test main pipe is located at the connection between the test main pipe and the second pipeline, the third valve is arranged on the acid delivery pipeline, the fourth valve is arranged on the pure water delivery pipeline, the fifth valve and the sixth valve are further arranged on the test main pipe in sequence, the fifth valve is located on the side close to the acid delivery pipeline, the sixth valve is located on the side close to the pure water delivery pipeline, and the connection point of the nitrogen delivery pipeline and the test main pipe is located between the fifth valve and the sixth valve.

2. The online sampling test device of claim 1, wherein: When the sample is injected, the third valve and the fourth valve are opened, and the first valve, the second valve, the fifth valve, the sixth valve and the blowdown valve are closed. When the sample is tested, the first valve, the second valve, the fifth valve and the sixth valve are opened, and the third valve and the fourth valve are closed. When the blowdown is performed, the second valve, the fourth valve and the blowdown valve are opened, and the first valve, the third valve, the fourth valve and the fifth valve are closed. When the pipeline is cleaned, the fourth valve and the sixth valve are opened, and the first valve, the second valve, the third valve, the fifth valve and the blowdown valve are closed.

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