Novel energy-saving environment-friendly phosphorus-free boiler water treatment agent

Abstract

The invention is applicable to the technical field of boiler water treatment agent preparation, and provides a novel energy-saving environment-friendly phosphorus-free boiler water treatment agent which comprises the following raw materials: a macromolecular copolymer, a dispersing agent, a film-forming agent, a defoaming agent and the balance of deionized water. A material mixing method based on the water treatment agent preparation process comprises the following steps: T1, sequentially adding the raw materials into a material mixing device; t2, the mixing device is controlled to rotate forwards and backwards in the reciprocating motion process on the guide frame, and full stirring of all the groups of raw materials by the mixing device is completed; and T3, the fully stirred water treatment agent is discharged and collected through the bottom of the mixing device, the water treatment agent can improve the concentration multiple of boiler water, can chelate scale forming components in the boiler water, has the effects of scale inhibition, chelating, dispersion and the like, and the mixing device is controlled to rotate forwards and backwards in the reciprocating motion process on the guide frame, so that the scale forming components in the boiler water can be removed. All groups of raw materials are fully stirred by the material mixing device, and the stirring effect is improved.

Description

Technical Field

[0001] The present invention relates to the technical field of boiler water treatment agent preparation, and more particularly to a novel energy-saving and environment-friendly phosphorus-free boiler water treatment agent. Background Art

[0002] Currently, over 70% of power plant boilers across China are combined heat and power (CHP) boilers. These primarily use coal, with a smaller number using other fuels such as natural gas and biomass. Some are waste heat boilers, such as incinerators, that use solid waste as fuel. Overall, CHP boilers vary in type, require large make-up water volumes, and are trending toward ultra-high pressure, subcritical, and higher pressures.

[0003] At present, the mainstream water treatment agents used in power station boilers are phosphorus-based agents, with a small number of them using film-forming polyamine water treatment agents or traditional polymer water treatment agents.

[0004] However, these conventional water treatment agents still have certain technical drawbacks after being added to boiler water: For example, phosphorus-based water treatment agents mainly use various phosphates as boiler water treatment agents. This process has certain technical limitations, such as limited control effect on corrosion and scaling of boiler system components. At the same time, there are characteristics such as large fluctuations in boiler water and steam index parameters, high conductivity, easy concealment of phosphates, and long agent delay time. Accurate and stable control is difficult, and it is highly dependent on the professional skills and sense of responsibility of on-site operators. Management is difficult, which can lead to a series of problems such as hidden phosphates, high steam salt content, high boiler water conductivity, and high boiler blowdown rates that have never been completely resolved. The film-forming polyamine water treatment agent method can provide protection and passivation treatment for all ferrous metal surfaces in the entire water-steam loop, and is more suitable for professional power generation boilers with low water supply and large amounts of condensate reuse. In addition, the use of traditional polymer-based water treatment agents still contains components such as organic phosphorus and low-phosphate salts (potassium and sodium). Although this can overcome some of the shortcomings of phosphate-based water treatment agents, its effectiveness in terms of phosphorus-free emissions, scale inhibition, and corrosion prevention is still somewhat insufficient, leaving much room for improvement. Furthermore, existing boiler water treatment agent preparation processes often involve stirring the raw materials using a mixing device. However, existing mixing equipment is relatively complex and has poor mixing effectiveness. Therefore, developing a new power plant boiler water treatment agent to overcome the shortcomings of these conventional water treatment agents, improve the thermal efficiency of power plant boilers, achieve energy conservation and environmental protection, and reduce pollution emissions is not only of great practical significance, but also has a wide range of applications and prospects. Summary of the Invention

[0005] In view of the shortcomings of the existing technology, the purpose of the present invention is to provide a new energy-saving and environmentally friendly phosphorus-free boiler water treatment agent. The water treatment agent can increase the concentration multiples of boiler water, can chelate the scaling components in the boiler water, and has scale inhibition, chelation, dispersion and other functions. By controlling the mixing device to rotate forward and reverse during the reciprocating movement on the guide frame, the mixing device can fully stir each group of raw materials. The structure is simple, the stirring effect is improved, and the quality of the boiler water treatment agent is improved.

[0006] To achieve the above object, the present invention provides the following technical solutions:

[0007] A new type of energy-saving and environmentally friendly phosphorus-free boiler water treatment agent, including the following raw materials:

[0008] 5%-30% high molecular copolymer, 1%-20% dispersant, 1%-25% film-forming agent, 0.5%-5% defoaming agent and the balance is deionized water;

[0009] The mixing method in the above-mentioned water treatment agent preparation process includes the following steps:

[0010] T1, adding the above raw materials into the mixing device in sequence;

[0011] T2, controlling the mixing device to rotate forward and reverse during the reciprocating movement on the guide frame to complete the sufficient mixing of each group of raw materials by the mixing device;

[0012] T3. The fully stirred water treatment agent is discharged through the bottom of the mixing device and collected.

[0013] The present invention is further configured as follows: the high molecular copolymer includes 0.5% to 10.0% of sodium polyaspartate, 0.5% to 15% of sodium polyepoxysuccinate and 0.5% to 10.0% of polymaleate; the molecular weight of the sodium polyaspartate is 2000 to 4000; the molecular weight of the sodium polyepoxysuccinate is 1000 to 2000; and the molecular weight of the polymaleate is 400 to 800.

[0014] The present invention is further configured as follows: the dispersant includes 0.5% to 10.0% of polyacrylic acid and 0.5% to 10.0% of acrylic acid / maleic acid copolymer; or 0.5% to 10.0% of acrylic acid / acrylamide copolymer and 0.5% to 10.0% of sodium polyacrylate; the molecular weight of the sodium polyacrylate is 4000 to 6000.

[0015] The present invention is further configured as follows: the film-forming agent includes 1% to 20% of diethylhydroxylamine, triethanolamine, 1% to 10% of cyclohexylamine, and 1% to 10% of diisopropylamine and triethylamine; the ratio of diethylhydroxylamine to triethanolamine is 1:1; the ratio of diisopropylamine to triethylamine is 1:1.

[0016] The present invention is further configured as follows: the defoaming agent includes 0.5% to 5% of polyoxyethylene polyoxypropylene glycerol ether or fatty alcohol polyoxyethylene ether.

[0017] The present invention is further configured as follows: the guide frame in step T2 includes two sets of support plates arranged in parallel; an electric push rod is fixed through the side of one of the support plates; a connecting plate is fixed to the telescopic end of the electric push rod; coaxial sleeves are symmetrically fixed on the side of the connecting plate; and the mixing device is rotatably arranged between the two sleeves.

[0018] The present invention is further configured as follows: an annular groove is provided on the inner wall of the sleeve; the mixing device in step T1 includes two groups of piston cylinders arranged coaxially; the piston cylinders and the sleeves are rotatably engaged; a plurality of diversion pipes are evenly penetrated and connected between the two piston cylinders; and an annular rail is fixed to the circumferential side of the piston cylinder, which is rotatably engaged with the annular groove.

[0019] The present invention is further configured as follows: a sealing groove is provided at the end of the piston cylinder; a first connecting flange is fixed to the circumferential side of the piston cylinder; a piston part is slidably arranged between the two piston cylinders; the piston part includes piston plates slidably arranged inside the two piston cylinders respectively; a connecting rod that slides in conjunction with the corresponding diversion pipe is fixed between the two piston plates; a sealing cover is fixed at the end of the piston cylinder; a second connecting flange is fixed to the circumferential side of the sealing cover; the first connecting flange and the second connecting flange are fixedly connected by fastening bolts; a sealing ring that is plugged into the sealing groove is fixed to the top of the sealing cover; a feed pipe and a liquid extraction pipe are sequentially penetrated by the circumferential side of the upper piston cylinder near its bottom; and a shut-off valve is provided on both the feed pipe and the liquid extraction pipe.

[0020] The present invention is further configured as follows: a sliding rod is fixed on the surface of the piston plate; a sliding rail is fixed on the peripheral side of the sliding rod; a sliding hole is provided on the surface of the sealing cover for sliding cooperation with the sliding rod; a sliding groove is provided on the inner wall of the sliding hole for sliding cooperation with the sliding rail; a gear ring is fixed on the peripheral side of the piston cylinder; a gear plate is fixed between the two support plates for meshing with the corresponding gear ring; two guide plates arranged parallel to each other are fixed between the two support plates; the guide plates include a first cross guide plate and a second cross guide plate arranged parallel to each other; an inclined guide plate is fixed between the first cross guide plate and the second cross guide plate; a ball head is fixed on the end of the sliding rod.

[0021] The advantages of the present invention are:

[0022] 1. The water treatment agent of the present invention can increase the concentration ratio of boiler water, chelate scale-forming components in boiler water, and has scale inhibition, chelation, and dispersion effects; it can greatly reduce the amount of water droplets carried by steam, thereby improving steam purity; it first uses physical methods to gradually clean away existing impurities and scale layers in the boiler, gradually stripping away corrosive substances in the boiler system, and at the same time forming a passivated Fe3O4 protective film on the inner wall surface of the boiler to prevent the formation of new rust and enhance the anti-scaling and anti-corrosion capabilities; the active ingredients can adsorb oxygen and neutralize carbonic acid; at the same time, it provides pre-filming and passivation effects on the steel pipes in the water supply system, steam system, and condensate system, which can have an anti-corrosion effect; and it can also eliminate problems such as phosphate hiding.

[0023] 2. The present invention controls the mixing device to rotate forward and reverse during the reciprocating movement on the guide frame, thereby completing the sufficient stirring of each group of raw materials by the mixing device. The structure is simple, the stirring effect is improved, and the quality of the boiler water treatment agent is improved. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] Figure 1 It is a structural schematic diagram of the mixing device and guide frame assembly of the present invention.

[0025] Figure 2 It is a structural schematic diagram of the mixing device of the present invention.

[0026] Figure 3 It is a structural schematic diagram of the piston cylinder of the present invention.

[0027] Figure 4 It is a structural schematic diagram of the piston part of the present invention.

[0028] Figure 5 Schematic diagram of the structure of the sealing cover of the present invention.

[0029] Figure 6 It is a structural schematic diagram of the guide frame of the present invention.

[0030] In the figure: 1. mixing device; 2. guide frame; 3. support plate; 4. electric push rod; 5. connecting plate; 6. sleeve; 7. annular groove; 8. piston cylinder; 9. diverter pipe; 10. annular rail; 11. sealing groove; 12. first connecting flange; 13. piston part; 14. piston plate; 15. connecting rod; 16. sealing cover; 17. second connecting flange; 18. sealing ring; 19. sliding rod; 20. sliding rail; 21. sliding hole; 22. gear ring; 23. gear plate; 24. first cross guide plate; 25. second cross guide plate; 26. inclined guide plate; 27. ball head; 28; 29. feed pipe; 30. liquid extraction pipe. DETAILED DESCRIPTION

[0031] It should be noted that, in the absence of conflict, the embodiments and features of the embodiments in this application can be combined with each other. The present invention will be described in detail below with reference to the accompanying drawings and in combination with the embodiments.

[0032] It should be noted that, unless otherwise specified, all technical and scientific terms used in this application have the same meanings as commonly understood by one of ordinary skill in the art to which this application relates.

[0033] In the present invention, unless otherwise specified, directions such as "up" and "down" are generally used with respect to the directions shown in the drawings, or with respect to the vertical, perpendicular or gravity directions; similarly, for ease of understanding and description, "left" and "right" are generally used with respect to the left and right shown in the drawings; "inside" and "outside" refer to the inside and outside relative to the outline of each component itself, but the above-mentioned directions are not used to limit the present invention.

[0034] For example 1, please refer to Figure 1-6 , the present invention provides the following technical solutions:

[0035] A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent comprises the following raw materials: 5%-30% of a high molecular copolymer, 1%-20% of a dispersant, 1%-25% of a film-forming agent, 0.5%-5% of a defoaming agent, and the balance being deionized water.

[0036] The mixing method in the above-mentioned water treatment agent preparation process includes the following steps:

[0037] T1. Add the above raw materials into the mixing device 1 in sequence.

[0038] T2. Control the mixing device 1 to rotate forward and backward during the reciprocating movement on the guide frame 2 to complete the sufficient mixing of each group of raw materials by the mixing device 1.

[0039] T3. The fully stirred water treatment agent is discharged through the bottom of the mixing device 1 and collected.

[0040] The high molecular copolymer comprises 0.5% to 10.0% of sodium polyaspartate, 0.5% to 15% of sodium polyepoxysuccinate and 0.5% to 10.0% of polymaleate; the molecular weight of sodium polyaspartate is 2000 to 4000; the molecular weight of sodium polyepoxysuccinate is 1000 to 2000; and the molecular weight of polymaleate is 400 to 800.

[0041] The dispersant comprises 0.5% to 10.0% of polyacrylic acid and 0.5% to 10.0% of acrylic acid / maleic acid copolymer; or 0.5% to 10.0% of acrylic acid / acrylamide copolymer and 0.5% to 10.0% of sodium polyacrylate; the molecular weight of the sodium polyacrylate is 4000 to 6000.

[0042] The film-forming agent comprises 1% to 20% of diethylhydroxylamine, triethanolamine, 1% to 10% of cyclohexylamine and 1% to 10% of diisopropylamine and triethylamine; the ratio of diethylhydroxylamine to triethanolamine is 1:1; the ratio of diisopropylamine to triethylamine is 1:1.

[0043] The defoaming agent includes 0.5% to 5% of polyoxyethylene polyoxypropylene glycerol ether or fatty alcohol polyoxyethylene ether.

[0044] Working principle of this embodiment 1:

[0045] The boiler water treatment agent of the present application can not only improve the water quality of the feed water, but also is more environmentally friendly because it does not contain phosphate components; some components in the treatment agent can also adjust and improve the quality of boiler water vapor, prevent the formation of iron oxide scale, and have the function of self-cleaning and removing old scale, which can prevent corrosion problems in the water supply system, prevent salt accumulation and scaling of superheaters and turbine blades, reduce boiler sewage discharge, and ultimately improve the thermal efficiency of the boiler generator set.

[0046] This water treatment agent can effectively complex metal (such as Fe, Cu, etc.) ions, making them easily soluble in water, thereby greatly enhancing the buffering capacity of boiler water and solving the deposition problem of iron oxide scale and copper scale.

[0047] This water treatment agent can change the surface tension of the liquid surface and reduce the probability of water droplet formation in the steam during the vaporization process of boiler water, thereby increasing the steam ratio and ensuring the purity of the steam; at the same time, it increases the concentration multiple of boiler water, which can reduce the boiler water discharge rate, save water replenishment, and reduce heat loss during discharge.

[0048] This water treatment agent can chelate, disperse, adsorb and neutralize silica in boiler water, reduce or even avoid the formation of silica scale on boilers and steam turbines, thereby improving power generation efficiency.

[0049] The aqueous solution of this water treatment agent is alkaline. When applied to the feed water, it eliminates acidic gases and removes dissolved oxygen. More importantly, this water treatment agent regulates the pH value of boiler water, making it slightly alkaline. By controlling the dosage of the water treatment agent, the pH value of the boiler water can be controlled between 9 and 11, thus resolving the problem of insufficient dosage of inorganic bases such as ammonia, potassium hydroxide, or sodium hydroxide when using conventional water treatment agents.

[0050] This water treatment agent contains a film-forming agent. It adheres to the inner surfaces of water supply pipes and boilers, forming a dense, highly adhesive, and smooth organic multi-molecular protective film. This film is not easily washed away by water flow, reducing ion intrusion and adhesion, while simultaneously preventing, inhibiting, and removing scale. Therefore, even a small amount of this water treatment agent can inhibit corrosion in water supply pipes and achieve long-lasting boiler scale inhibition.

[0051] At the same time, this water treatment agent is a standard solution pre-configured according to a certain scientific formula. It can be used directly without on-site configuration. It is simple and convenient to operate, greatly reducing the operator's workload. It also avoids the problem of poor scale inhibition caused by errors in the concentration of each component that may be caused by temporary configuration. Therefore, it is very beneficial to the standardization of production management, the safety and stability of long-term continuous operation of boilers, and the reduction of sewage discharge and the heat loss caused by it, thereby achieving significant energy-saving and emission reduction effects. It can not only meet the production requirements for steam quality but also greatly save production costs, and can bring considerable economic and social benefits to the enterprise.

[0052] The dosage of the water treatment agent in this formula is: 10~20md / L.

[0053] 1. Can increase the concentration multiple of boiler water

[0054] This water treatment agent can reduce the boiler's blowdown rate, allowing the boiler to operate at a high concentration ratio (low blowdown rate), improve steam purity, and keep the turbine clean; the blowdown rate is reduced to below 1%, and regular discharge is performed every 7 days.

[0055] 2. It has the functions of scale inhibition, chelation and dispersion

[0056] This water treatment agent chelates scaling components in boiler water, dissolving them in the water as complex ions. These ions are then discharged from the boiler through regular blowdown. Furthermore, this water treatment agent has the unique ability to effectively chelate, disperse, adsorb, and neutralize silica in boiler water, reducing the silica content and ultimately preventing the formation of silica scale on boilers and turbines.

[0057] It can greatly reduce the amount of water droplets carried by steam and improve steam purity

[0058] After using this water treatment agent, when the boiler water is at a high concentration ratio and the conductivity and salt content are low (under certain index indicators), there will be no steam-water co-evaporation and bubbling, which can prevent steam from carrying water, thereby greatly improving the purity and quality of the steam produced by the boiler.

[0059] 4. Cleaning, stripping, pre-filming and anti-corrosion

[0060] Cleaning and stripping: First, use physical methods to gradually clean away the existing impurities and scale layers in the boiler, so that they form powdery free matter and are discharged out of the boiler body through the boiler's fixed drainage; Pre-film anti-corrosion (terminating corrosion problems in the boiler system): Gradually strip away the corrosive substances in the boiler system, and at the same time form a passivated Fe304 protective film on the inner wall surface of the boiler to prevent the formation of new rust and enhance the anti-scaling and anti-corrosion capabilities.

[0061] 5. Replace inorganic alkalis such as ammonia, hydrazine, potassium hydroxide, or sodium hydroxide when supplying water

[0062] The active ingredients of this water treatment agent can absorb oxygen and neutralize carbonic acid; at the same time, it provides pre-filming and passivation functions for the steel pipes in the water supply system, steam system and condensate system, and has an anti-corrosion effect.

[0063] 6. Eliminate problems such as phosphate hiding

[0064] This water treatment agent does not contain any phosphorus-containing components such as phosphates, and is phosphorus-free and environmentally friendly. It can avoid the hidden phosphate problem that is very likely to occur in high-pressure boilers under phosphate aqueous solution conditions and the risk of alkaline corrosion or acidic phosphate corrosion caused by it, thereby reducing furnace tube leakage and preventing furnace tube corrosion and other problems.

[0065] Example 2

[0066] See also Figure 1-6 The second embodiment is improved on the basis of the first embodiment as follows. Specifically, in step T2, the guide frame 2 includes two sets of support plates 3 arranged in parallel; an electric push rod 4 is fixed through the side of one support plate 3; a connecting plate 5 is fixed to the telescopic end of the electric push rod 4; coaxial sleeves 6 are symmetrically fixed on the side of the connecting plate 5; and the mixing device 1 is rotatably arranged between the two sleeves 6.

[0067] An annular groove 7 is provided on the inner wall of the sleeve 6; in step T1, the mixing device 1 includes two sets of piston cylinders 8 arranged coaxially; the piston cylinders 8 and the sleeve 6 are rotatably engaged; a plurality of diversion pipes 9 are evenly connected and penetrated between the two piston cylinders 8; an annular rail 10 is fixed on the side surface of the piston cylinder 8 to rotatably engage with the annular groove 7.

[0068] A sealing groove 11 is provided at the end of the piston cylinder 8; a first connecting flange 12 is fixed to the side surface of the piston cylinder 8; a piston part 13 is slidably arranged between the two piston cylinders 8; the piston part 13 includes piston plates 14 slidably arranged inside the two piston cylinders 8 respectively; a connecting rod 15 that slides with the corresponding diversion pipe 9 is fixed between the two piston plates 14; a sealing cover 16 is fixed to the end of the piston cylinder 8; a second connecting flange 17 is fixed to the side surface of the sealing cover 16; the first connecting flange 12 and the second connecting flange 17 are fixedly connected by fastening bolts; a sealing ring 18 that plugs into the sealing groove 11 is fixed to the top of the sealing cover 16; a feed pipe 29 and a liquid extraction pipe 30 are sequentially penetrated by the side surface of the piston cylinder 8 located above near its bottom; and stop valves are provided on both the feed pipe 29 and the discharge pipe 30.

[0069] A slide rod 19 is fixed to the surface of the piston plate 14; a slide rail 20 is fixed to the side surface of the slide rod 19; a slide hole 21 that slides with the slide rod 19 is opened on the surface of the sealing cover 16; a slide groove 28 that slides with the slide rail 20 is opened on the inner wall of the slide hole 21; a gear ring 22 is fixed to the side surface of the piston cylinder 8; a gear plate 23 that meshes with the corresponding gear ring 22 is fixed between the two support plates 3; two guide plates arranged parallel to each other are fixed between the two support plates 3; the guide plates include a first cross guide plate 24 and a second cross guide plate 25 that are arranged parallel to each other; an inclined guide plate 26 is fixed between the first cross guide plate 24 and the second cross guide plate 25; the inclined guide plate 26 is a flexible rubber plate; a ball head 27 is fixed to the end of the slide rod 19.

[0070] Working principle of the second embodiment:

[0071] In the initial state, the electric push rod 4 is in an extended state, the two sets of ball heads 27 are respectively attached to the corresponding second cross guide plates 25, the upper piston plate 14 is attached to the corresponding inner top of the piston cylinder 8, and the lower piston plate 14 is attached to the corresponding inner top of the piston cylinder 8.

[0072] Open the stop valve on the feed pipe 29 and feed each raw material into the piston cylinder 8 located above in turn, and then close the stop valve on the feed pipe 29 to complete the feeding of each group of raw materials; the distance between the two first cross guide plates 24 and the two second cross guide plates 25 is equal to the distance between the two ball heads 27.

[0073] By controlling and starting the electric push rod 4 to retract it, the two sleeves 6 on the side of the connecting plate 5 and the two piston cylinders 8 are driven to slide toward the direction close to the electric push rod 4, so that the two ball heads 27 slide from the second cross guide plate 25 into the first cross guide plate 24; when the ball heads 27 slide on the second cross guide plate 25, the upper piston plate 14 is attached to the top of the upper piston cylinder 8, and the lower piston plate 14 is attached to the top of the upper piston cylinder 8; when the ball heads 27 slide on the inclined guide plate 26, the upper ball head 27 is squeezed, so that the upper piston plate 14 slides down along the inside of the upper piston cylinder 8, and the lower piston plate 14 slides down along the inclined guide plate 26. The inner wall of the lower piston cylinder 8 slides down, so that the raw material inside the upper piston cylinder 8 is sent into the lower piston cylinder 8 through the diverter pipe 9; when the ball head 27 slides on the first cross guide plate 24, the upper piston plate 14 is in contact with the inner bottom surface of the upper piston cylinder 8, and the lower piston plate 14 is in contact with the inner bottom surface of the lower piston cylinder 8; the electric push rod 4 is controlled to start and extend, and similarly, the upper piston plate 14 slides and rises along the inside of the upper piston cylinder 8, and the lower piston plate 14 slides and rises along the inner wall of the lower piston cylinder 8, so that the raw material inside the lower piston cylinder 8 is sent into the upper piston cylinder 8 through the diverter pipe 9.

[0074] In summary, by controlling the periodic contraction and extension of the electric push rod 4 and the diversion of the diversion pipe 9, the raw materials are transposed in the two piston cylinders 8, the diversion and mixing of the raw materials are achieved, and the mixing effect is improved.

[0075] During the reciprocating movement of the two piston cylinders 8, the tooth plates 23 are engaged with the corresponding gear rings 22, so that the mixing device 1 can rotate forward and backward periodically, thereby further improving the mixing effect of the raw materials.

[0076] Obviously, the embodiments described above are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts should fall within the scope of protection of the present invention.

[0077] It should be noted that the terms used herein are only for describing specific embodiments and are not intended to limit the exemplary embodiments according to the present application. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should be understood that when the terms "comprise" and / or "include" are used in this specification, they indicate the presence of features, steps, tasks, devices, components and / or combinations thereof.

[0078] It should be noted that the terms "first," "second," and the like in the specification and claims of this application and the accompanying drawings are used to distinguish similar objects and are not necessarily used to describe a specific order or precedence. It should be understood that the terms used in this manner are interchangeable where appropriate, so that the embodiments of the present application described herein can be implemented in an order other than that illustrated or described herein.

[0079] The foregoing description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Those skilled in the art will readily appreciate that various modifications and variations of the present invention are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present invention are intended to be within the scope of protection of the present invention.

[0080] The above description is merely a preferred embodiment of the present invention. The scope of protection of the present invention is not limited to the above embodiment. All technical solutions based on the concept of the present invention are within the scope of protection of the present invention. It should be noted that for those skilled in the art, various improvements and modifications that do not depart from the principles of the present invention should also be considered within the scope of protection of the present invention.

Claims

1. A new type of energy-saving and environmentally friendly phosphorus-free boiler water treatment agent, characterized in that: Including the following raw materials: 5%-30% high molecular copolymer, 1%-20% dispersant, 1%-25% film-forming agent, 0.5%-5% defoaming agent and the balance is deionized water; The mixing method in the above-mentioned water treatment agent preparation process includes the following steps: T1, adding the above raw materials into the mixing device (1) in sequence; T2, controlling the mixing device (1) to rotate forward and reverse during the reciprocating movement on the guide frame (2), so as to complete the sufficient stirring of each group of raw materials by the mixing device (1); T3. The fully stirred water treatment agent is discharged through the bottom of the mixing device (1) and collected.

2. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 1, characterized in that: The high molecular copolymer comprises 0.5% to 10.0% of sodium polyaspartate, 0.5% to 15% of sodium polyepoxysuccinate and 0.5% to 10.0% of polymaleate; the molecular weight of the sodium polyaspartate is 2000 to 4000; the molecular weight of the sodium polyepoxysuccinate is 1000 to 2000; and the molecular weight of the polymaleate is 400 to 800.

3. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 2, characterized in that: The dispersant comprises 0.5% to 10.0% of polyacrylic acid and 0.5% to 10.0% of acrylic acid / maleic acid copolymer; or 0.5% to 10.0% of acrylic acid / acrylamide copolymer and 0.5% to 10.0% of sodium polyacrylate; the molecular weight of the sodium polyacrylate is 4000 to 6000.

4. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 3, characterized in that: The film-forming agent comprises 1% to 20% of diethylhydroxylamine, triethanolamine, 1% to 10% of cyclohexylamine, and 1% to 10% of diisopropylamine and triethylamine; the ratio of diethylhydroxylamine to triethanolamine is 1:1; the ratio of diisopropylamine to triethylamine is 1:

1.

5. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 4, characterized in that: The defoaming agent includes 0.5% to 5% of polyoxyethylene polyoxypropylene glycerol ether or fatty alcohol polyoxyethylene ether.

6. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 5, characterized in that: The guide frame (2) in step T2 includes two sets of support plates (3) arranged in parallel; an electric push rod (4) is fixed through the side of one of the support plates (3); a connecting plate (5) is fixed to the telescopic end of the electric push rod (4); coaxial sleeves (6) are symmetrically fixed to the side of the connecting plate (5); and the mixing device (1) is rotatably arranged between the two sleeves (6).

7. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 6, characterized in that: The inner wall of the sleeve (6) is provided with an annular groove (7); the mixing device (1) in step T1 includes two groups of piston cylinders (8) arranged coaxially; the piston cylinders (8) and the sleeve (6) are rotatably matched; a plurality of shunt pipes (9) are evenly connected and penetrated between the two piston cylinders (8); an annular rail (10) is fixed on the peripheral side of the piston cylinder (8) and is rotatably matched with the annular groove (7).

8. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 7, characterized in that: The piston cylinder (8) is provided with a sealing groove (11) at the end thereof; a first connecting flange (12) is fixed to the peripheral side of the piston cylinder (8); a piston portion (13) is slidably arranged between the two piston cylinders (8); the piston portion (13) includes piston plates (14) slidably arranged inside the two piston cylinders (8); a connecting rod (15) slidably matched with the corresponding shunt pipe (9) is fixed between the two piston plates (14); a sealing cover (16) is fixed to the end of the piston cylinder (8); A second connecting flange (17) is fixed to the side surface of the sealing cover (16); the first connecting flange (12) and the second connecting flange (17) are fixedly connected by fastening bolts; a sealing ring (18) that is plugged into and fits with the sealing groove (11) is fixed to the top of the sealing cover (16); a feed pipe (29) and a liquid extraction pipe (30) are sequentially provided on the side surface of the piston cylinder (8) located above and near its bottom; and a stop valve is provided on both the feed pipe (29) and the liquid extraction pipe (30).

9. A novel energy-saving and environmentally friendly phosphorus-free boiler water treatment agent according to claim 8, characterized in that: A slide rod (19) is fixed on the surface of the piston plate (14); a slide rail (20) is fixed on the peripheral side of the slide rod (19); a slide hole (21) that slides with the slide rod (19) is provided on the surface of the sealing cover (16); a slide groove (28) that slides with the slide rail (20) is provided on the inner wall of the slide hole (21); a gear ring (22) is fixed on the peripheral side of the piston cylinder (8); a tooth plate (23) that meshes with the corresponding gear ring (22) is fixed between the two support plates (3); two guide plates arranged parallel to each other are fixed between the two support plates (3); the guide plates include a first transverse guide plate (24) and a second transverse guide plate (25) that are arranged parallel to each other; an inclined guide plate (26) is fixed between the first transverse guide plate (24) and the second transverse guide plate (25); a ball head (27) is fixed at the end of the slide rod (19).

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