Concentrated solution quality control method

Abstract

The invention provides a concentrated solution quality control method, and belongs to the technical field of concentrated solutions, and the concentrated solution quality control method specifically comprises the following steps: controlling the quality of raw materials; component detection and moisture control; quality control in the production process; a mixing technology, an online monitoring technology, a filtering technology and granularity control are adopted; finished product detection; testing physical and chemical properties, and testing durability; packaging and storing; and sealing detection and label compliance quality inspection are carried out. According to the invention, through a multi-mode online detection system and online real-time detection, the functions of comprehensive monitoring and intelligent adjustment of key parameters of the whole production process of the automobile concentrated solution are realized, and the stability of product quality is improved.

Description

Technical Field

[0001] The invention belongs to the technical field of concentrated liquids, and in particular relates to a concentrated liquid quality control method. Background Art

[0002] There are many types of automotive concentrates, primarily targeting critical areas such as cooling systems, cleaning systems, and transmission systems. Common types of automotive concentrates include antifreeze coolant concentrate, windshield washer fluid concentrate, transmission fluid concentrate, brake fluid concentrate, and engine oil additive concentrate. To ensure the production quality of automotive concentrates, quality control methods are often required. Currently, existing concentrate quality control methods primarily include component analysis and performance testing. Component analysis typically involves high-performance liquid chromatography (HPLC) and gas chromatography (GC), primarily used to determine the ethylene glycol / propylene glycol content and corrosion inhibitor concentration in the concentrate. Performance testing primarily includes freezing point testing, boiling point testing, and corrosion testing. Existing technologies use these quality control methods to control concentrate quality. However, since quality control requires sampling and testing, the efficiency of sampling and testing is low and cannot meet the real-time monitoring requirements of automotive concentrate production lines. Consequently, this offline testing approach results in delayed quality control of automotive concentrates, easily leading to waste of raw materials and increased costs.

[0003] Therefore, it is very necessary to invent a kind of concentrated liquid quality control method. Summary of the Invention

[0004] To solve the above technical problems, the present invention provides a concentrated liquid quality control method. By using a multimodal online detection system and online real-time detection, the method achieves comprehensive monitoring and intelligent adjustment of key parameters in the entire automotive concentrated liquid production process, significantly improving the stability of product quality. The concentrated liquid quality control method specifically comprises the following steps:

[0005] Step 1: Raw material quality control;

[0006] Step 1: Component detection, which is performed through a multimodal online monitoring system;

[0007] Step 2: Moisture control, using a Karl Fischer moisture meter to test the moisture content;

[0008] Preferably, in step 1, the component detection in the first step includes organic component purity detection and heavy metal impurity detection;

[0009] Preferably, in step 1, the purity detection of the organic component in the first step is achieved by a multimodal online detection system, and an embedded detection module is installed at a quality inspection node of the production line to continuously obtain detection data;

[0010] Preferably, in step one, the heavy metal impurities in the first step are detected by atomic absorption spectroscopy or inductively coupled plasma mass spectrometry.

[0011] Step 2: Production process quality control;

[0012] Step 1: Mixing process, using high shear mixing equipment to ensure the uniformity of raw material mixing, real-time monitoring of viscosity and pH value, and temperature control during the mixing process;

[0013] Step 2: Online monitoring technology: monitor mixing uniformity through an online viscometer and monitor and adjust pH value or additive content in real time through an automatic titration system;

[0014] Step 3: Filtration process;

[0015] Step 4: Particle size control: Detect particles in the concentrate using a laser particle counter.

[0016] Preferably, in step 2, the filtering process in the third step removes particulate impurities through multi-layer filtration to avoid clogging of automobile pipelines.

[0017] Step 3: Finished product testing;

[0018] Step 1: Physical and chemical performance test, using freezing point tester to test freezing point, using boiling point tester to test boiling point, using corrosion tester to test corrosion, using wet boiling point tester to test wet boiling point, using rubber compatibility tester to test rubber compatibility, using cleaning power tester to test cleaning power, using low temperature stability tester to test low temperature stability;

[0019] Step 2: Durability test;

[0020] Preferably, in step three, the durability test in the second step utilizes a bench test to simulate actual working conditions to detect the shear stability of the concentrate;

[0021] Step 4: Packaging and storage;

[0022] Step 1: Leakage test, helium mass spectrometer leak detector to prevent oxidation or moisture absorption;

[0023] Step 2: Label compliance quality inspection to ensure that the label complies with GHS or ISO 20730 standards;

[0024] Compared with the existing technology, the present invention has the following beneficial effects: through a multimodal online detection system and online real-time detection, it realizes the function of comprehensive monitoring and intelligent adjustment of key parameters of the entire process of automobile concentrate production, thereby improving the stability of product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] Figure 1 It is a flow chart of the concentrate quality control method.

[0026] Figure 2 It is a flow chart of raw material quality control.

[0027] Figure 3 It is a production process quality control flow chart.

[0028] Figure 4 This is the finished product inspection flow chart.

[0029] Figure 5 It is a packaging and storage flow chart. DETAILED DESCRIPTION

[0030] The present invention will be further described below with reference to the accompanying drawings:

[0031] In the picture:

[0032] As attached Figures 1 to 5 As shown:

[0033] A concentrated liquid quality control method specifically comprises the following steps:

[0034] S10: Raw material quality control;

[0035] S101: Composition detection, which is performed through a multimodal online monitoring system;

[0036] S102: Moisture control, testing the moisture content by Karl Fischer moisture meter;

[0037] Preferably, in step 1, the component detection in the first step includes organic component purity detection and heavy metal impurity detection;

[0038] Preferably, in step 1, the purity detection of the organic component in the first step is achieved by a multimodal online detection system, and an embedded detection module is installed at a quality inspection node of the production line to continuously obtain detection data;

[0039] Preferably, in step one, the heavy metal impurities in the first step are detected by atomic absorption spectroscopy or inductively coupled plasma mass spectrometry.

[0040] S20: Production process quality control;

[0041] S201: Mixing process, using high shear mixing equipment to ensure the uniformity of raw material mixing, real-time monitoring of viscosity and pH value, and temperature control during the mixing process;

[0042] S202: Online monitoring technology: monitor mixing uniformity through online viscometer, and monitor and adjust pH value or additive content in real time through automatic titration system;

[0043] S203: Filtration process;

[0044] S204: Particle size control: Detect particles in the concentrate using a laser particle counter.

[0045] Preferably, in step 2, the filtering process in the third step removes particulate impurities through multi-layer filtration to avoid clogging of automobile pipelines.

[0046] S30: Finished product inspection;

[0047] S301: Physical and chemical performance test, freezing point test using freezing point tester, boiling point test using boiling point tester, corrosivity test using corrosion tester, wet boiling point test using wet boiling point tester, rubber compatibility test using rubber compatibility tester, cleaning power test using cleaning power tester, low temperature stability test using low temperature stability tester;

[0048] S302: Durability test;

[0049] Preferably, in step three, the durability test in the second step utilizes a bench test to simulate actual working conditions to detect the shear stability of the concentrate;

[0050] S40: Packaging and storage;

[0051] S401: Leakage test, helium mass spectrometer leak detector to prevent oxidation or moisture absorption;

[0052] S402: Label compliance, ensuring labels comply with GHS or ISO 20730 standards;

[0053] Specific implementation examples

[0054] Example 1: During the raw material quality control process, the raw materials are subjected to component detection through a multimodal online monitoring system, and an embedded detection module is installed at the quality inspection node of the production line to continuously obtain detection data. The moisture content is detected by a Karl Fischer moisture meter, and then the production process quality control is carried out. In the mixing process, the viscosity and pH value are monitored in real time, and the temperature is controlled. In the filtration process, particulate impurities are removed through multi-layer filtration to avoid clogging of automobile pipelines. The function of comprehensive monitoring and intelligent adjustment of key parameters of the entire process of automobile concentrate production is realized, thereby improving the stability of product quality.

[0055] Utilizing the technical solution described in the present invention, or those skilled in the art designing similar technical solutions inspired by the technical solution of the present invention to achieve the above technical effects, all fall within the scope of protection of the present invention.

Claims

1. A concentrated liquid quality control method, characterized in that: The concentrated liquid quality control method specifically comprises the following steps: Step 1: Raw material quality control; Step 1: Component detection, which is performed through a multimodal online monitoring system; Step 2: Moisture control, using a Karl Fischer moisture meter to test the moisture content; Step 2: Production process quality control; Step 1: Mixing process, using high shear mixing equipment to ensure the uniformity of raw material mixing, real-time monitoring of viscosity and pH value, and temperature control during the mixing process; Step 2: Online monitoring technology: monitor mixing uniformity through an online viscometer and monitor and adjust pH value or additive content in real time through an automatic titration system; Step 3: Filtration process; Step 4: Particle size control: Detect particles in the concentrate using a laser particle counter. Step 3: Finished product testing; Step 1: Physical and chemical performance test, using freezing point tester to test freezing point, using boiling point tester to test boiling point, using corrosion tester to test corrosion, using wet boiling point tester to test wet boiling point, using rubber compatibility tester to test rubber compatibility, using cleaning power tester to test cleaning power, using low temperature stability tester to test low temperature stability; Step 2: Durability test; Step 4: Packaging and storage; Step 1: Leakage test, helium mass spectrometer leak detector to prevent oxidation or moisture absorption; Step 2: Label compliance quality inspection to ensure that the label complies with GHS or ISO 20730 standards.

2. The concentrated liquid quality control method according to claim 1, wherein: In step 1, the first step of component detection includes organic component purity detection and heavy metal impurity detection.

3. The concentrated liquid quality control method according to claim 1, wherein: In step one, the purity detection of the organic component in the first step is achieved through a multimodal online detection system. An embedded detection module is installed at a quality inspection node of the production line, and detection data can be continuously obtained.

4. The concentrated liquid quality control method according to claim 1, wherein: In step one, the heavy metal impurities in the first step are detected by atomic absorption spectroscopy and inductively coupled plasma mass spectrometry.

5. The concentrated liquid quality control method according to claim 1, wherein: In step 2, the filtering process in the third step removes particulate impurities through multi-layer filtration to avoid clogging of automobile pipelines.

6. The concentrated liquid quality control method according to claim 1, wherein: In step three, the durability test in the second step utilizes a bench test to simulate actual working conditions and detect the shear stability of the concentrate.

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