阅读说明：本技术 锅炉水给水ph调节剂 (Boiler water feed water ph regulator ) 是由 董浩 牛超 赵文彬 于 2021-08-20 设计创作，主要内容包括：本发明为锅炉水给水ph调节剂,采用单乙醇胺、吗啉和去离子水为调节剂组分,本产品具有用量小,增加ph值明显,一方面,克服了现有市场产品挥发性大且增加电导率高的弊端,具有经过热力除氧器挥发成分少的特点；另一方面,该调节剂能够钝化金属,使金属变得稳定,提高抗腐蚀性能,从而减少金属腐蚀产物在炉内的沉积,有助于保持锅炉内部清洁。(The invention is a boiler water feed water ph regulator, adopts monoethanolamine, morpholine and deionized water as the components of the regulator, and the product has the advantages of small dosage and obvious ph value increase, on one hand, the defects of large volatility and high conductivity increase of the existing market products are overcome, and the product has the characteristic of less volatile components passing through a thermal deaerator; on the other hand, the regulator can passivate metal, stabilize the metal and improve the corrosion resistance, thereby reducing the deposition of metal corrosion products in the boiler and helping to keep the interior of the boiler clean.)

1. The boiler water feed water ph regulator is characterized by comprising the following components: the composition comprises monoethanolamine, morpholine and water, and the components are as follows by mass percent: 15-25% of monoethanolamine, 35-50% of morpholine and the balance of deionized water.

2. The boiler water feed water ph adjusting agent as claimed in claim 1, wherein the monoethanolamine 15%, morpholine 35% and deionized water are 50%.

3. The method for preparing the boiler water feed water ph adjusting agent according to claim 1, characterized in that the method comprises the following steps:

firstly, injecting 500kg of deionized water into a one-ton reaction kettle, wherein the conductivity of the deionized water is required to be less than 1 us/cm;

step two: then, slowly adding 150kg of monoethanolamine into the reaction kettle, and uniformly stirring;

step three: then 350kg of morpholine is added into the reaction kettle and is stirred uniformly;

step four: and standing for half an hour after stirring to obtain the boiler water feed water ph regulator.

4. The method of claim 3, wherein the boiler water is fed to between 13 and 14 times the ph adjusting agent.

Technical Field

The invention relates to the technical field of water treatment, in particular to a boiler water feed water ph regulator.

Background

The boiler is a steam or hot water generating device, and water is used as a heat transfer medium, so that the quality of feed water is a core technology, and qualified water quality is used, which is the premise of ensuring the safe and stable operation of the boiler and producing qualified steam or hot water. In the use process of the boiler, the heat transfer surfaces of the boiler and the water pipe are in a high-temperature high-pressure environment, and the problem of abnormal corrosion often exists. The abnormal corrosion of the boiler not only affects the service life of the boiler, but also brings serious hidden danger to the safety production.

The existing boiler water feed water ph regulator adopts ammonia water, and has the defects of large volatility of products, high increased conductivity, large volatile components passing through a thermal deaerator, poor corrosion resistance and serious deposition of corrosive substances in a boiler.

Disclosure of Invention

In order to solve the technical problems, the invention provides a boiler water feed water ph regulator, which has the technical scheme that:

comprises the following components: the composition comprises monoethanolamine, morpholine and water, and the components are as follows by mass percent: 15-25% of monoethanolamine, 35-50% of morpholine and the balance of deionized water.

Further, the content of the monoethanolamine, the morpholine and the deionized water is 50 percent.

Further, the preparation method comprises the following steps:

firstly, injecting 500kg of deionized water into a one-ton reaction kettle, wherein the conductivity of the deionized water is required to be less than 1 us/cm;

step two: then, slowly adding 150kg of monoethanolamine into the reaction kettle, and uniformly stirring;

step three: then 350kg of morpholine is added into the reaction kettle and is stirred uniformly;

step four: and standing for half an hour after stirring to obtain the boiler water feed water ph regulator.

Further, the pH value range of the boiler water feed water PH regulator is 13-14.

The invention has the beneficial effects that: the invention is a boiler water feed water ph regulator, adopts monoethanolamine, morpholine and deionized water as the components of the regulator, and the product has the advantages of small dosage and obvious ph value increase, on one hand, the defects of large volatility and high conductivity increase of the existing market products are overcome, and the product has the characteristic of less volatile components passing through a thermal deaerator; on the other hand, the regulator can passivate metal, stabilize the metal and improve the corrosion resistance, thereby reducing the deposition of metal corrosion products in the boiler and helping to keep the interior of the boiler clean.

Drawings

FIG. 1 is a graph of the conductivity vs. pH of the agent of example 1;

FIG. 2 is a graph of the conductivity vs. pH of the agent of example 2;

FIG. 3 is a graph of the conductivity vs. pH of the agent of example 3.

Detailed Description

The invention relates to a boiler water feed water ph regulator, which comprises the following components: the composition comprises monoethanolamine, morpholine and water, and the components are as follows by mass percent: 15-25% of monoethanolamine, 35-50% of morpholine and the balance of deionized water.

Example 1

The pH regulator for the boiler water supply water comprises the following components in parts by weight: 15% of monoethanolamine, 35% of morpholine and 50% of deionized water, wherein the pH value of the regulator is between 13 and 14.

Example 2

The pH regulator for the boiler water supply water comprises the following components in parts by weight: 20% of monoethanolamine, 40% of morpholine and 40% of deionized water. The pH value of the regulator is between 13 and 14.

Example 3

The pH regulator for the boiler water supply water comprises the following components in parts by weight: 25% of monoethanolamine, 45% of morpholine and 30% of deionized water. The pH value of the regulator is between 13 and 14.

Comparative examples, as shown, the ability to change PH for different materials with the same conductivity change is compared, and when PH is between 9 and 9.5, it is evident that examples 1, 2, and 3 increase conductivity less than the other materials.

That is, the present invention will increase less conductivity with varying same ph.

In summary, the embodiments of the present invention provide a pH adjusting agent for boiler water supply. Compared with the prior art, the method has the following advantages:

1. the product has the characteristics of small dosage, obvious pH value increase, overcoming the defects of large volatility and high conductivity increase of products in the existing market, and less volatile components passing through a thermal deaerator.

2. The product also has the function of passivating the metal, and the passivation can stabilize the metal, essentially because the surface of the metal is covered with a layer of oxide film, the corrosion resistance of the metal is improved. The corrosion inhibitor has certain corrosion inhibition performance, can reduce the corrosion rate of a boiler system, thereby reducing the deposition of metal corrosion products in the boiler and being beneficial to keeping the interior of the boiler clean.

3. Can absorb the acid gas brought in by the boiler water supply pipe, and further protect the boiler and the pipeline from being corroded.

4. Has partial volatility, and can protect pipelines at a steam side and a condensed water side from being corroded.

The above examples are only intended to illustrate the technical solution of the present invention, but not to limit it; although the present invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical solutions described in the foregoing embodiments may still be modified, or some technical features may be equivalently replaced; and such modifications or substitutions do not depart from the spirit and scope of the corresponding technical solutions of the embodiments of the present invention.