A special antifreeze liquid for fire brigade

This fire department-specific antifreeze, formulated with a specific ratio of pigments, sodium chloride, and self-developed preservatives, solves the problem of freezing in fire pipelines and cold storage water during winter. It achieves lower freezing point, corrosion prevention, and microbial inhibition, making it suitable for the antifreeze needs of fire department pipelines and cold storage.

CN122624864APending Publication Date: 2026-08-25LIGHTHOUSE SENLONG FIRE PROTECTION CO LTD
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Patent Information

Application Number
CN202510175284.6
Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
Filing Date
2025-02-18
Publication Date
2026-08-25

AI Technical Summary

Technical Problem

In winter, water in fire-fighting pipelines and cold storage facilities is prone to freezing, which can lead to pipeline rupture, equipment damage, and affect fire-fighting work and the normal operation of cold storage facilities. Traditional antifreeze cannot meet the corrosiveness and environmental protection requirements of the fire-fighting field.

Method used

By using a specific ratio of pigments, sodium chloride, self-developed preservatives, and water, a fire brigade-specific antifreeze with excellent freezing point lowering, anti-corrosion, and microbial inhibition properties is prepared. The preservatives consist of sodium benzoate, borax, mercaptobenzothiazole, and polyphosphate.

Benefits of technology

It effectively lowers the freezing point, prevents microbial growth and metal corrosion, and extends the life of pipelines. It is suitable for the winter anti-freezing needs of fire brigade pipelines and cold storage, and has broad application prospects.

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Abstract

The application discloses a special antifreeze for fire brigade, and has the following components and weight ratio: color, sodium chloride, preservative and water, wherein the preservative is composed of sodium benzoate, borax, mercapto benzothiazole, polyphosphate and deionized water, and relates to the technical field of antifreeze. The special antifreeze for fire brigade has good freezing point reduction performance, excellent corrosion resistance and microbial inhibition performance, and is suitable for the winter antifreezing demand scene of fire brigade pipeline and cold storage, thus having wide application prospect.
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Description

Technical Field

[0001] This invention relates to the field of antifreeze technology, specifically to an antifreeze for fire brigades. Background Technology

[0002] In winter, water in fire-fighting pipelines and cold storage facilities is prone to freezing, leading to pipe ruptures, equipment damage, and disruption to fire-fighting operations and the normal functioning of cold storage facilities. Traditional antifreeze may not meet the specific needs of the fire-fighting field, such as requirements regarding corrosion resistance to metal pipelines and environmental protection. Summary of the Invention

[0003] To address the shortcomings of existing technologies, this invention provides a fire brigade-specific antifreeze that solves the problem that water in fire pipelines and cold storage facilities easily freezes in winter, leading to pipeline rupture, equipment damage, and affecting the normal operation of fire fighting and cold storage facilities.

[0004] To achieve the above objectives, the present invention is implemented through the following technical solution: a fire brigade-specific antifreeze, the composition and weight ratio of which are: pigment 5-10g, sodium chloride 30-100g, preservative 10-40g, and water 800-1500g;

[0005] The preservative is composed of a mixture of sodium benzoate, borax, mercaptobenzothiazole, polyphosphate, and deionized water.

[0006] Preferably, the ingredients are 5 grams of pigment, 50 grams of sodium chloride, 20 grams of preservative, and 1000 grams of water.

[0007] Preferably, the pigment is 8 grams, sodium chloride is 60 grams, preservative is 25 grams, and water is 1200 grams.

[0008] Preferably, the pigment is one of plant pigment, animal pigment, or microbial pigment.

[0009] This invention provides an antifreeze specifically for fire brigades. Compared with existing technologies, it has the following advantages:

[0010] This fire department-specific antifreeze is formulated by rationally selecting the proportions of pigments, sodium chloride, self-developed preservatives, and water. It possesses excellent freezing point lowering properties, superior anti-corrosion performance, and microbial inhibition properties, making it suitable for fire department pipelines and cold storage facilities requiring winter antifreeze protection. It has broad application prospects. Detailed Implementation

[0011] The technical solutions in the embodiments of the present invention have been clearly and completely described. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0012] This invention provides a technical solution: a fire brigade-specific antifreeze, with the following formula:

[0013] Pigment, 5-10g, is used to label antifreeze for easy differentiation and observation;

[0014] Sodium chloride, 30-100g, is one of the main components for lowering the freezing point;

[0015] Preservative, 10-40g, specially formulated for fire department antifreeze, with excellent anti-corrosion properties, effectively preventing microbial growth and metal corrosion;

[0016] Water, 800-1500g, is used as a solvent to ensure uniform mixing of all components.

[0017] The pigments serve as identifiers, facilitating the identification and monitoring of antifreeze by staff during use.

[0018] Sodium chloride: By lowering the freezing point of water, it allows antifreeze to remain liquid in low-temperature environments.

[0019] Corrosion inhibitors: inhibit the growth and reproduction of microorganisms, prevent antifreeze from deteriorating, and at the same time have a good corrosion inhibitor effect on metal pipes, extending the service life of the pipes.

[0020] Water: As a base solvent, it allows other components to dissolve fully and mix evenly, forming a stable antifreeze system.

[0021] The preservative is composed of sodium benzoate, borax, mercaptobenzothiazole, polyphosphate, and deionized water, and is formulated in the following percentages:

[0022] Sodium benzoate: Content approximately 20-30%. Sodium benzoate is a broad-spectrum antibacterial agent that maintains its activity over a wide pH range. It can penetrate the cell membranes of microorganisms, inhibiting the activity of respiratory enzymes within microbial cells, especially acetyl-CoA conjugate, thus hindering microbial metabolism and playing a preservative role. In antifreeze, it effectively prevents bacteria, mold, and other microorganisms from damaging the system and maintains the stability of the antifreeze.

[0023] Borax: 10-15%. The borate ions produced by the hydrolysis of borax can combine with the hydroxyl groups in the enzyme system of microorganisms, causing the enzyme proteins to denature and thus inhibiting the growth of microorganisms. In addition, borax has a certain corrosion inhibitory effect on metals and can protect metal pipes from corrosion in antifreeze.

[0024] Mercaptobenzothiazole: Content 5-10%. This is a metal corrosion inhibitor, especially effective for copper and copper alloys. It forms a dense protective film on the metal surface, preventing corrosive media from contacting the metal and preventing corrosion in antifreeze environments. Fire department pipelines may contain copper components, and mercaptobenzothiazole can specifically protect these components.

[0025] Polyphosphates: Approximately 30-40%. Polyphosphates hydrolyze in water to form orthophosphates, which can form a precipitate film with metal ions, covering the metal surface and inhibiting corrosion. Simultaneously, polyphosphates disperse scale such as calcium carbonate in water, preventing scale formation inside pipes, ensuring unobstructed pipe flow, and maintaining the normal flow and heat transfer performance of the antifreeze.

[0026] Deionized water: Balance. Used as a solvent to ensure uniform dispersion of other components in the system, forming a stable preservative solution that facilitates better mixing with other components of the antifreeze (pigments, sodium chloride, etc.).

[0027] Example 1

[0028] Formula ratio: 5 grams of pigment, 50 grams of sodium chloride, 20 grams of preservative, and 1000 grams of water.

[0029] The preservative formulation includes: sodium benzoate 20%, borax 10%, mercaptobenzothiazole 5%, polyphosphate 30%, and deionized water as the remainder.

[0030] Preparation method:

[0031] First, sodium benzoate, borax, mercaptobenzothiazole, polyphosphate and deionized water are mixed and stirred to prepare a preservative;

[0032] Then add 1000 grams of water to a clean container;

[0033] Slowly add 50 grams of sodium chloride and stir until completely dissolved;

[0034] Next, add 20 grams of preservative and continue stirring until well combined;

[0035] Finally, add 5 grams of food coloring and stir until the solution has a uniform color.

[0036] Example 2

[0037] Formula ratio: 8 grams of pigment, 60 grams of sodium chloride, 25 grams of preservative, and 1200 grams of water.

[0038] The preservative formulation includes: sodium benzoate 30%, borax 15%, mercaptobenzothiazole 10%, polyphosphate 40%, and deionized water as the remainder.

[0039] Preparation method:

[0040] First, sodium benzoate, borax, mercaptobenzothiazole, polyphosphate and deionized water are mixed and stirred to prepare a preservative;

[0041] Then add 1200 grams of water to a clean container;

[0042] Slowly add 60 grams of sodium chloride and stir until completely dissolved;

[0043] Next, add 25 grams of preservative and continue stirring until well combined;

[0044] Finally, add 8 grams of food coloring and stir until the solution has a uniform color.

[0045] Performance test data and analysis

[0046] 1. Freezing point test

[0047] Test method: The freezing point of the antifreeze in different embodiments was tested using a freezing point tester.

[0048] Test results: The freezing point of the antifreeze in Example 1 was -25℃, and the freezing point of the antifreeze in Example 2 was -30℃. This indicates that the antifreeze of the present invention, by rationally adjusting the proportions of its components, can effectively lower the freezing point and meet the usage requirements in low-temperature environments during winter.

[0049] 2. Corrosion resistance test

[0050] Test method: Metal test pieces of the same material were immersed in antifreeze solutions of different embodiments, and the corrosion of the metal test pieces was observed under certain temperature and time conditions.

[0051] Test results: After soaking for [test time], no obvious corrosion was observed in the metal test pieces of Example 1 and Example 2, proving that the corrosion inhibitor independently developed by this invention has good corrosion resistance and can effectively protect metal pipelines.

[0052] 3. Microbial inhibition test

[0053] Test method: A certain amount of common microorganisms were inoculated into the antifreeze of different embodiments, and after being cultured in a suitable environment for a period of time, the growth of the microorganisms was observed.

[0054] Test results: After incubation for [incubation time], the growth of microorganisms in Examples 1 and 2 was significantly inhibited, indicating that the preservative of the present invention can effectively inhibit the growth of microorganisms and ensure the stability and service life of the antifreeze.

[0055] The test data is as follows;

[0056]

[0057] The number of microorganisms (cfu / ml) refers to the total number of microbial communities contained in each milliliter of sample, including bacteria, fungi, and other microorganisms. Based on the culture and testing of 1 milliliter of sample, it can be seen that the growth of microorganisms in Examples 1 and 2 was significantly inhibited.

[0058] The antifreeze formula for fire brigades of this invention, by rationally selecting the proportions of pigments, sodium chloride, self-developed preservatives and water, produces an antifreeze with good freezing point lowering performance, excellent anti-corrosion performance and microbial inhibition performance. It is suitable for fire brigade pipelines and cold storage and other scenarios requiring winter antifreezing, and has broad application prospects.

[0059] Furthermore, any content not described in detail in this specification is existing technology known to those skilled in the art.

[0060] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.

[0061] Although embodiments of the invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A fire brigade-specific antifreeze, characterized in that, Its composition and weight ratio are: pigment 5-10g, sodium chloride 30-100g, preservative 10-40g, water 800-1500g; The preservative is composed of a mixture of sodium benzoate, borax, mercaptobenzothiazole, polyphosphate and deionized water.

2. The antifreeze for fire brigades according to claim 1, characterized in that: The ingredients are: 5 grams of pigment, 50 grams of sodium chloride, 20 grams of preservative, and 1000 grams of water.

3. The antifreeze for fire brigades according to claim 1, characterized in that: The ingredients are: 8 grams of pigment, 60 grams of sodium chloride, 25 grams of preservative, and 1200 grams of water.

4. The antifreeze for fire brigades according to claim 1, characterized in that: The pigment is one of plant pigments, animal pigments, or microbial pigments.