Boiler water treatment agent based on amine compounding and preparation method thereof

Abstract

The invention discloses a boiler water treatment agent based on amine compounding and a preparation method thereof.The boiler water treatment agent is prepared from, by mass, 0.1 kg of carbohydrazide, 0.7 kg of neutralizing amine, 0.15 kg of N-isopropyl hydroxylamine and 0.05 kg of sodium polyepoxysuccinate, the carbohydrazide serves as a deoxidant and can remove dissolved oxygen in boiler water, so that oxidation corrosion of boiler equipment is prevented, and the service life of the equipment is prolonged. According to the boiler water treatment agent based on amine compounding and the preparation method of the boiler water treatment agent, carbohydrazide serves as a main deoxidant, dissolved oxygen in boiler water can be effectively removed, so that oxidation corrosion is prevented, the durability of boiler equipment is remarkably improved, equipment damage and maintenance cost caused by oxidation corrosion are reduced, neutralizing amine has an excellent corrosion inhibition effect, and the service life of the boiler water treatment agent is prolonged. The metal surface in the boiler water can be effectively protected from corrosion, the protection effect on materials such as steel, copper and alloys thereof is particularly remarkable, and the service life of boiler equipment is prolonged.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler water treatment, in particular to an amine-based composite boiler water treatment agent and a preparation method thereof. Background Art

[0002] Boiler water treatment is crucial for boiler operation. Dissolved oxygen, calcium and magnesium ions, and impurities in boiler water can cause severe corrosion and scaling problems on boiler equipment, reducing boiler efficiency and service life. Traditional boiler water treatment methods typically rely on a single chemical agent, which has limited effectiveness and requires frequent replenishment and replacement. Furthermore, bubbles in boiler water can affect heat exchange efficiency. Therefore, designing an efficient, stable, and comprehensive boiler water treatment agent has become a technical challenge in boiler operation and management.

[0003] In recent years, with the continuous development of chemical engineering technology, compounded boiler water treatment agents have gradually become a research hotspot. Compounded water treatment agents not only provide multiple functions such as deoxidation, corrosion inhibition, scale removal, and dispersancy, but also enhance water treatment effectiveness, reduce the frequency and cost of single agent use, extend the service life of boiler equipment, and improve thermal efficiency. Amine compounds are particularly promising due to their strong corrosion inhibition, scale removal, and dispersancy properties.

[0004] Therefore, developing a boiler water treatment agent based on an amine compound that can achieve multiple functions such as better deoxidation, corrosion inhibition, scale removal and dispersion, thereby improving boiler water treatment efficiency, extending the service life of the boiler, and reducing energy consumption and maintenance costs is a technical problem that needs to be urgently solved in the current boiler water treatment field.

[0005] To this end, we propose a boiler water treatment agent based on amine compound and its preparation method. Summary of the Invention

[0006] To achieve the above object, the present invention provides the following technical solution: a boiler water treatment agent based on amine compound, comprising the following components in the following mass ratios:

[0007] Carbohydrazide 0.1kg

[0008] Neutralizing amine 0.7kg

[0009] N-isopropylhydroxylamine 0.15kg

[0010] 0.05kg of sodium polyepoxysuccinate.

[0011] Preferably, carbohydrazide is used as a deoxidizer to remove dissolved oxygen in boiler water, thereby preventing oxidative corrosion of boiler equipment and extending the service life of the equipment.

[0012] Preferably, neutralizing amines are used as corrosion inhibitors to effectively inhibit corrosion of metal surfaces in boiler water, and have a significant protective effect on steel, copper, and their alloys.

[0013] Preferably, N-isopropylhydroxylamine is used as a descaling and dispersing agent, which can effectively prevent calcium and magnesium ions in boiler water from combining to form scale, and can disperse the scale that has already been formed to prevent it from being deposited inside the boiler.

[0014] Preferably, polyepoxy sodium succinate (PESA) is used as a dispersant, which can form a stable colloid in boiler water, reduce the aggregation of calcium, magnesium and other ions in the water, avoid the deposition of calcium and magnesium ions to form scale, and has a certain anti-foaming effect, preventing the foam in the boiler water from affecting the heat exchange efficiency.

[0015] Preferably, the boiler water treatment agent is a liquid solution, suitable for daily treatment of boiler water.

[0016] A method for preparing a boiler water treatment agent based on amine compounding, characterized by comprising the following steps:

[0017] S1: Prepare carbohydrazide, neutralizing amine, N-isopropylhydroxylamine and sodium polyepoxysuccinate according to mass ratio;

[0018] S2: Add each component to the blender in sequence and stir thoroughly to ensure uniform mixing of the components. The stirring time is 30 to 60 minutes.

[0019] S3: Adjust the pH value of the mixture to between 6.5 and 8.0 by adding appropriate amount of acid or alkali to ensure the optimal performance of the water treatment agent;

[0020] S4: filtering the mixed solution to remove impurities therein to obtain a clear and transparent liquid water treatment agent;

[0021] S5: The final prepared water treatment agent is packaged, stored and prepared for use.

[0022] Preferably, when adjusting the pH value, the acid or base used is an inorganic acid or an inorganic base, specifically hydrochloric acid or sodium hydroxide.

[0023] Preferably, the stirring rate during mixing is controlled between 100 and 300 rpm to avoid violent reaction or excessive bubble generation.

[0024] Preferably, the water treatment agent can remain stable at room temperature and has a storage period of more than 6 months.

[0025] Compared with the prior art, the present invention provides a boiler water treatment agent based on amine compound and its preparation method, which has the following beneficial effects:

[0026] 1. This amine-based boiler water treatment agent and its preparation method use carbohydrazide as the main deoxidizer, which can effectively remove dissolved oxygen in boiler water, thereby preventing the occurrence of oxidative corrosion, significantly improving the durability of boiler equipment, and reducing equipment damage and maintenance costs caused by oxidative corrosion. The neutralizing amine has an excellent corrosion inhibition effect and can effectively protect the metal surface in the boiler water from corrosion, especially for materials such as steel, copper and their alloys, thereby extending the service life of the boiler equipment.

[0027] 2. The amine-based boiler water treatment agent and its preparation method, N-isopropylhydroxylamine as a descaling and dispersing agent, can effectively prevent calcium and magnesium ions in boiler water from combining to form scale, and disperse the scale that has already formed, avoiding scale deposition inside the boiler, thereby keeping the inner surface of the boiler clean and maintaining thermal efficiency. Polyepoxy sodium succinate (PESA) as a highly efficient dispersant can not only stabilize the colloids in boiler water, reduce the aggregation of calcium and magnesium ions, and avoid scale deposition, but also effectively resist foaming, avoiding the formation of foam in boiler water, thereby ensuring the efficiency of the heat exchange process.

[0028] 3. The amine-based boiler water treatment agent and its preparation method. The boiler water treatment agent of the present invention is a liquid solution, which is convenient for storage and daily use. Users only need to add it regularly according to the instructions. The operation is simple and efficient. The prepared water treatment agent can maintain long-term stability at room temperature and has a storage period of more than 6 months, ensuring long-term effectiveness in actual use. The water treatment agent of the present invention has a simple formula, uses relatively environmentally friendly chemicals, can reduce the energy consumption and maintenance costs of boiler equipment, and has good economy and environmental adaptability. DETAILED DESCRIPTION

[0029] The following is a clear and complete description of the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only some embodiments of the present invention, not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making any creative efforts are within the scope of protection of the present invention.

[0030] Example

[0031] An embodiment of a boiler water treatment agent based on amine compounding and its preparation method

[0032] A boiler water treatment agent based on an amine compound, comprising the following components in the following mass ratios:

[0033] Carbohydrazide 0.1kg

[0034] Neutralizing amine 0.7kg

[0035] N-isopropylhydroxylamine 0.15kg

[0036] 0.05kg of sodium polyepoxysuccinate.

[0037] Specifically, carbohydrazide, as a deoxidizer, can remove dissolved oxygen in boiler water, thereby preventing oxidative corrosion of boiler equipment and extending the service life of the equipment.

[0038] Specifically, neutralizing amines, as corrosion inhibitors, can effectively inhibit the corrosion of metal surfaces in boiler water, especially having a significant protective effect on steel, copper and their alloys.

[0039] Specifically, N-isopropylhydroxylamine, as a descaling and dispersing agent, can effectively prevent calcium and magnesium ions in boiler water from combining to form scale, and can disperse the scale that has already formed to prevent it from being deposited inside the boiler.

[0040] Specifically, sodium polyepoxysuccinate (PESA) as a dispersant can form a stable colloid in boiler water, reduce the aggregation of calcium, magnesium and other ions in the water, avoid the deposition of calcium and magnesium ions to form scale, and has a certain anti-foaming effect, preventing the foam in the boiler water from affecting the heat exchange efficiency.

[0041] Specifically, the boiler water treatment agent is a liquid solution, suitable for daily treatment of boiler water.

[0042] A method for preparing a boiler water treatment agent based on amine compounding, characterized by comprising the following steps:

[0043] S1: Prepare carbohydrazide, neutralizing amine, N-isopropylhydroxylamine and sodium polyepoxysuccinate according to mass ratio;

[0044] S2: Add each component to the blender in sequence and stir thoroughly to ensure uniform mixing of the components. The stirring time is 30 to 60 minutes.

[0045] S3: Adjust the pH value of the mixture to between 6.5 and 8.0 by adding appropriate amount of acid or alkali to ensure the optimal performance of the water treatment agent;

[0046] S4: filtering the mixed solution to remove impurities therein to obtain a clear and transparent liquid water treatment agent;

[0047] S5: The final prepared water treatment agent is packaged, stored and prepared for use.

[0048] Specifically, when adjusting the pH value, the acid or base used is an inorganic acid or an inorganic base, specifically hydrochloric acid or sodium hydroxide.

[0049] Specifically, the stirring rate during mixing is controlled between 100 and 300 rpm to avoid violent reaction or excessive bubble generation.

[0050] Specifically, the water treatment agent can remain stable at room temperature and has a storage period of more than 6 months.

[0051] Through the above technical solution, in the present invention, carbohydrazide as the main deoxidizer can effectively remove dissolved oxygen in boiler water, thereby preventing the occurrence of oxidative corrosion, significantly improving the durability of boiler equipment, and reducing equipment damage and maintenance costs caused by oxidative corrosion. Neutralizing amine has excellent corrosion inhibition effect and can effectively protect the metal surface in boiler water from corrosion, especially for materials such as steel, copper and its alloys, thereby extending the service life of boiler equipment. N-isopropylhydroxylamine as a descaling and dispersing agent can effectively prevent calcium and magnesium ions in boiler water from combining to form scale, and disperse the scale that has been generated to avoid scale deposition inside the boiler, thereby keeping the inner surface of the boiler clean and maintaining thermal efficiency. Sodium (PESA) is an efficient dispersant that can not only stabilize the colloids in boiler water, reduce the aggregation of calcium and magnesium ions, and avoid scale deposition, but also effectively prevent foaming and avoid the formation of foam in boiler water, thereby ensuring the efficiency of the heat exchange process. The boiler water treatment agent of the present invention is a liquid solution, which is convenient for storage and daily use. Users only need to add it regularly according to the instructions. The operation is simple and efficient. The prepared water treatment agent can maintain long-term stability at room temperature and has a storage period of more than 6 months, ensuring long-term effectiveness in actual use. The water treatment agent of the present invention has a simple formula, the chemicals used are relatively environmentally friendly, and can reduce the energy consumption and maintenance costs of boiler equipment, with good economy and environmental adaptability.

[0052] 1. Raw material preparation

[0053] According to the recipe of the present invention, the following raw materials need to be prepared first:

[0054] Carbohydrazide: As a deoxidizer, it can effectively remove dissolved oxygen from boiler water and prevent oxidative corrosion.

[0055] Neutralizing amine: As a corrosion inhibitor, it can effectively inhibit the corrosion of metal surfaces in boiler water.

[0056] N-isopropylhydroxylamine: acts as a descaling and dispersant, preventing scale formation and dispersing existing scale.

[0057] Sodium polyepoxysuccinate (PESA): As a dispersant, it can reduce the aggregation of calcium and magnesium ions in water, prevent scale deposition, and has an anti-foaming effect.

[0058] 2. Mixing process

[0059] Preparation ratio: prepare each component (0.1 kg of carbohydrazide, 0.7 kg of neutralizing amine, 0.15 kg of N-isopropylhydroxylamine, and 0.05 kg of sodium polyepoxysuccinate) according to the mass ratio.

[0060] Mixing: Add each component to the blender and mix thoroughly. Stir for 30 to 60 minutes to ensure uniform mixing. Keep the stirring rate between 100 and 300 rpm to avoid violent reactions or excessive bubbles.

[0061] pH adjustment: By adding an appropriate amount of acid or base, the pH of the mixture is adjusted to between 6.5 and 8.0. Commonly used acids are hydrochloric acid and bases are sodium hydroxide. The adjusted pH value helps ensure the optimal effect of the water treatment agent.

[0062] Filtration: After mixing and pH adjustment, the mixture is filtered to remove impurities and obtain a clear and transparent liquid water treatment agent.

[0063] Packaging and storage: Finally, the filtered water treatment agent is packaged and sealed for storage. It should be stored in a cool and dry place, away from direct sunlight to ensure its stability.

[0064] 3. Usage

[0065] The boiler water treatment agent of the present invention is a liquid solution that can be directly used for routine boiler water treatment. In actual use, the water treatment agent is added in appropriate amounts based on the boiler's operating conditions, the quality of the boiler water, and the intended use. Typically, the addition amount is 0.5 to 1.5 kg per ton of boiler water, adjusted as needed. The quality of the boiler water should be regularly monitored during use to ensure the effectiveness of the boiler water treatment agent.

[0066] 4. Storage and Shelf Life

[0067] The water treatment agent of the present invention has a long storage period and can be stably stored for more than 6 months at room temperature. During storage, it should be avoided from mixing with acidic and alkaline substances and the container should be kept sealed to prevent water evaporation or impurity contamination.

[0068] The treatment agent in this application is: water vapor treatment agent liquid Aquacare721.

[0069] While embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions, and variations may be made to these embodiments without departing from the principles and spirit of the invention, and that the scope of the invention is defined by the appended claims and their equivalents.

Claims

1. A boiler water treatment agent based on amine compound, characterized by: It is composed of the following components in the following mass ratios: Carbohydrazide 0.1kg Neutralizing amine 0.7kg N-isopropylhydroxylamine 0.15kg 0.05kg of sodium polyepoxysuccinate.

2. The boiler water treatment agent based on amine compound according to claim 1, characterized in that: As a deoxidizer, carbohydrazide can remove dissolved oxygen in boiler water, thereby preventing oxidative corrosion of boiler equipment and extending the service life of the equipment.

3. The boiler water treatment agent based on amine compound according to claim 1, characterized in that: Neutralizing amines, as corrosion inhibitors, can effectively inhibit the corrosion of metal surfaces in boiler water, especially having a significant protective effect on steel, copper and their alloys.

4. The boiler water treatment agent based on amine compound according to claim 1, characterized in that: As a descaling and dispersing agent, N-isopropylhydroxylamine can effectively prevent the calcium and magnesium ions in the boiler water from combining to form scale, and can disperse the scale that has already formed to prevent it from depositing inside the boiler.

5. The boiler water treatment agent based on amine compound according to claim 1, characterized in that: As a dispersant, sodium polyepoxysuccinate (PESA) can form a stable colloid in boiler water, reduce the aggregation of calcium, magnesium and other ions in the water, avoid the deposition of calcium and magnesium ions to form scale, and has a certain anti-foaming effect, preventing the foam in the boiler water from affecting the heat exchange efficiency.

6. The boiler water treatment agent based on amine compound according to claim 1, characterized in that: The boiler water treatment agent is a liquid solution and is suitable for daily treatment of boiler water.

7. A method for preparing a boiler water treatment agent based on amine compounding, characterized in that: The following steps are involved: S1: Prepare carbohydrazide, neutralizing amine, N-isopropylhydroxylamine and sodium polyepoxysuccinate according to mass ratio; S2: Add each component to the blender in sequence and stir thoroughly to ensure uniform mixing of the components. The stirring time is 30 to 60 minutes. S3: Adjust the pH value of the mixture to between 6.5 and 8.0 by adding appropriate amount of acid or alkali to ensure the optimal performance of the water treatment agent; S4: filtering the mixed solution to remove impurities therein to obtain a clear and transparent liquid water treatment agent; S5: The final prepared water treatment agent is packaged, stored and prepared for use.

8. The method for preparing a boiler water treatment agent based on amine compounding according to claim 7, characterized in that: When adjusting the pH value, the acid or base used is an inorganic acid or an inorganic base, specifically hydrochloric acid or sodium hydroxide.

9. The method for preparing a boiler water treatment agent based on amine compounding according to claim 7, characterized in that: The stirring rate during mixing was controlled between 100 and 300 rpm to avoid violent reaction or excessive bubble generation.

10. The method for preparing a boiler water treatment agent based on amine compounding according to claim 7, characterized in that: The water treatment agent can remain stable at room temperature and has a storage period of more than 6 months.