A new type of anti-corrosion steam blower

Abstract

The utility model discloses a novel anticorrosive steam blower, aims at solving the problem that the existing blower is easy to be corroded when conveying high temperature steam containing chemical components. The blower comprises a body, an air compression cavity is arranged in the body, and a rotor capable of rotating relative to the body is arranged in the cavity. The body and the rotor are both made of stainless steel material, and the surfaces of both are covered with a hastelloy coating. The stainless steel substrate provides good structural strength, and the hastelloy coating has excellent corrosion resistance, which can effectively resist the corrosion of chemical components in high temperature steam. This structural design can comprehensively protect the surfaces of the body and the rotor in contact with the steam, greatly improve the service life of the equipment in the high temperature steam conveying scene containing corrosive components, reduce the maintenance cost, and is suitable for the industrial fields such as chemical industry and energy industry with high requirements on the corrosion resistance of the equipment.

Description

Technical Field

[0001] This utility model relates to the field of blower technology, and in particular to a novel corrosion-resistant steam blower. Background Technology

[0002] In many aspects of industrial production, the stable delivery of high-temperature steam is crucial for ensuring process continuity and efficiency, and it is widely used in chemical reactions, food processing, energy conversion, and other fields. Screw blowers, with their stable exhaust characteristics resulting from their positive displacement working principle, have become important equipment in steam delivery systems. Through the rotational motion of a pair of meshing screw rotors, they can continuously draw in, compress, and deliver high-temperature steam, meeting the precise control requirements of industrial production for steam flow and pressure.

[0003] However, the high-temperature steam to be transported in industrial settings is often not simply gaseous water, but a mixture containing various complex chemical components. These components may include acidic gases (such as sulfur dioxide and hydrogen sulfide) produced by process reactions, alkaline substances (such as ammonia compounds), or trace amounts of salts and metal ions mixed in during steam circulation. When the high-temperature steam flows inside the screw blower, these chemical components will come into continuous contact with the blower's body, rotor, and other core components.

[0004] Under the catalytic effect of high temperature environment, the reaction between chemical components and metal parts is more intense: acidic substances can easily trigger electrochemical corrosion of metals, resulting in pitting and ulcer-like corrosion pits on the surface of the parts.

[0005] Current screw blower designs primarily focus on improving aerodynamic performance and structural strength. Their bodies, rotors, and other components are typically made of ordinary carbon steel or alloy materials without special anti-corrosion treatment, lacking corrosion-resistant designs for high-temperature steam containing chemical components. With long-term operation, corrosion problems gradually emerge: internal channels develop dimensional deviations due to corrosion, leading to decreased steam delivery efficiency; corrosion and wear on the rotor surface disrupt meshing clearances, causing increased vibration and noise, and in severe cases, even rotor jamming and machine leaks, forcing production interruptions. This not only increases equipment maintenance costs but also poses safety hazards due to steam leaks. Utility Model Content

[0006] The present invention aims to solve at least one of the technical problems existing in the prior art. To this end, the present invention proposes a novel corrosion-resistant steam blower.

[0007] A novel corrosion-resistant steam blower designed for this purpose includes a body, an air compression chamber inside the body, and a rotor that rotates relative to the body inside the air compression chamber.

[0008] The body is made of stainless steel and has a Hastelloy coating on its surface.

[0009] The rotor is made of stainless steel and has a Hastelloy coating on its surface.

[0010] Preferably, the body includes a main shell, end caps, and side plates;

[0011] The main housing has openings on the front, rear, left, and right sides;

[0012] Two end caps are provided and located on the front and rear sides of the main housing. The end caps are connected to the main housing to close the corresponding openings.

[0013] The side plates are provided in two and are located on the left and right sides of the main housing. The side plates are connected to the main housing to close the corresponding openings.

[0014] Preferably, ventilation openings are provided on the upper and lower sides of the main housing, and the ventilation openings are used to connect ventilation pipes.

[0015] Preferably, the system also includes a frame, on which the machine body is fixedly mounted, and a main unit is mounted on the frame, the main unit being connected to the rotor via a drive.

[0016] Preferably, shock-absorbing pads are also provided between the body and the frame, and between the host and the frame.

[0017] Preferably, the rotor includes a male rotor and a female rotor.

[0018] Preferably, the stainless steel used is 2Cr13 stainless steel.

[0019] Compared with the prior art, this novel corrosion-resistant steam blower significantly improves the corrosion resistance of the equipment in high-temperature steam transportation scenarios containing chemical components through targeted improvements to the materials and surface treatment of the body and rotor. The specific beneficial effects are as follows:

[0020] First, the dual protection of the substrate and coating significantly enhances corrosion resistance. Both the body and rotor use stainless steel as the base material, utilizing the inherent oxidation resistance and acid and alkali resistance of stainless steel to form the first line of defense. On this basis, the Hastelloy coating added to the surface further improves the corrosion resistance level. Hastelloy has excellent resistance to various strong acids, strong alkalis, salt media, and high-temperature environments, effectively isolating the chemical components in steam from direct contact with the substrate, thus mitigating electrochemical corrosion, oxidation peeling, and other problems at the source.

[0021] Secondly, it ensures long-term stable operation of the equipment and reduces the rate of performance degradation. Thanks to the improved corrosion resistance, the internal channels of the machine body are less prone to dimensional deviations due to corrosion, and the rotor surface can also reduce abnormal meshing clearances caused by corrosion wear. This maintains the stability of the blower's aerodynamic performance during long-term use, ensuring that parameters such as steam flow rate and pressure always meet process requirements and reducing the risk of production interruptions due to equipment failure.

[0022] Finally, it extends equipment lifespan and reduces overall costs. The corrosion-resistant design reduces corrosion damage to the machine body and rotor, significantly extending the replacement cycle of core components and lowering equipment maintenance frequency and spare parts costs. At the same time, safety hazards caused by corrosion are effectively controlled, indirectly reducing economic losses caused by accidents and providing more economical and reliable operational assurance for industrial steam conveying systems. Attached Figure Description

[0023] Figure 1 This is one of the three-dimensional structural schematic diagrams of this utility model;

[0024] Figure 2 This is the second three-dimensional structural schematic diagram of the present invention;

[0025] Figure 3 This is one of the schematic diagrams of the three-dimensional structure of the organism;

[0026] Figure 4 This is the second schematic diagram of the three-dimensional structure of the organism. Detailed Implementation

[0027] The embodiments of the technical solution of this application will now be described in detail with reference to the accompanying drawings. These embodiments are only used to more clearly illustrate the technical solution of this application and are therefore merely examples, and should not be used to limit the scope of protection of this application.

[0028] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application pertains; the terminology used herein is for the purpose of describing particular embodiments only and is not intended to limit the application; the terms “comprising” and “having”, and any variations thereof, in the specification, claims, and foregoing description of the drawings are intended to cover non-exclusive inclusion.

[0029] In the description of the embodiments of this application, technical terms such as "first" and "second" are used only to distinguish different objects and should not be construed as indicating or implying relative importance or implicitly indicating the number, specific order, or primary and secondary relationship of the indicated technical features.

[0030] In this document, the term "implementation" means that a specific feature, structure, or characteristic described in connection with an implementation may be included in at least one implementation of this application. The appearance of this phrase in various places in the specification does not necessarily refer to the same implementation, nor is it a separate or alternative implementation mutually exclusive with other implementations. It will be explicitly and implicitly understood by those skilled in the art that the implementations described herein can be combined with other implementations.

[0031] In the description of the embodiments in this application, the term "and / or" is merely a description of the relationship between related objects, indicating that three relationships can exist. For example, A and / or B can represent: A existing alone, A and B existing simultaneously, and B existing alone. Additionally, the character " / " in this document generally indicates that the preceding and following related objects have an "or" relationship.

[0032] In the description of the embodiments of this application, the term "multiple" refers to two or more (including two), similarly, "multiple groups" refers to two or more (including two groups), and "multiple pieces" refers to two or more (including two pieces).

[0033] In the description of the embodiments of this application, the technical terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing the embodiments of this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the embodiments of this application.

[0034] In the description of the embodiments of this application, unless otherwise explicitly specified and limited, the technical terms such as "installation," "connection," "joining," and "fixing" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. For those skilled in the art, the specific meaning of the above terms in the embodiments of this application can be understood according to the specific circumstances.

[0035] See Figures 1-4A novel corrosion-resistant steam blower includes a body 10, an air compression chamber 20 inside the body 10, and a rotor 30 rotating relative to the body 10 inside the air compression chamber 20; the body 10 is made of stainless steel and has a Hastelloy coating on its surface; the rotor 30 is made of stainless steel and has a Hastelloy coating on its surface.

[0036] In this invention, the stainless steel used is 2Cr13 stainless steel.

[0037] From a structural perspective, the body 10, as the basic frame of the equipment, not only provides installation support for the air compression chamber 20 and the rotor 30, but also, through its own stainless steel base material and Hastelloy coating, constructs the first line of defense against high-temperature steam corrosion, effectively blocking the erosion of the internal channels by acidic, alkaline and other chemical components in the steam, and ensuring the integrity of the steam delivery path. The rotor 30, as the core compression component, completes the intake and compression of steam during its rotation in the air compression chamber 20. Its combination of stainless steel material and Hastelloy coating can resist the corrosion caused by the increased pressure during the compression process, maintain the precise meshing gap between the rotor and the compression chamber, and ensure the stability of the steam delivery flow and pressure.

[0038] In terms of corrosion resistance, the stainless steel substrate itself possesses the characteristic of resisting oxidation and weak corrosive media by forming a dense oxide film, providing basic protection for the body 10 and rotor 30. The Hastelloy coating on the surface, as a reinforced protective layer, further isolates the chemical components in the steam from direct contact with the substrate due to its excellent corrosion resistance to complex media such as strong acids, strong alkalis, and high-temperature steam, fundamentally blocking the path of corrosion reactions such as electrochemical corrosion and oxidation spalling. When high-temperature steam flows within the air compression chamber 20, the dual protective structure of the body and rotor continuously resists the erosion of corrosive media, thereby ensuring stable operating performance and extending the service life of the equipment during long-term operation.

[0039] See Figure 3 and Figure 4The body 10 includes a main housing 110, end caps 120, and side plates 130. The main housing 110 has openings on its front, rear, left, and right sides. Two end caps 120 are located on the front and rear sides of the main housing 110, and are connected to the main housing 110 to close the corresponding openings. Two side plates 130 are located on the left and right sides of the main housing 110, and are connected to the main housing 110 to close the corresponding openings. This structural design of the body 10 provides a solid foundation for achieving full coverage of the coating and avoiding dead angles. The openings on the front, rear, left, and right sides of the main housing 110 break the closed limitations of the integral structure, allowing every inner wall of the internal channel to be fully exposed within the coating operation range. Areas prone to dead angles, such as channel corners and curved surface junctions, can be fully treated, ensuring that the Hastelloy coating adheres evenly and without omission in these critical areas. The two end caps 120 are connected to the openings on the front and rear sides of the main housing 110. In the disassembled state, the sealing surfaces of the end caps 120 that mate with the main housing 110, as well as the areas on their inner surfaces that flow towards the steam, can be coated individually. Operators can meticulously handle any gaps that may form between the end caps 120 and the main housing 110 during assembly, preventing these areas from becoming blind spots for coating coverage due to structural obstruction. Similarly, the two side plates 130 located on the left and right sides of the main housing 110 can be fully coated on their inner surfaces that mate with the main housing 110 and their surrounding areas after disassembly, avoiding any uncovered dead corners in the gaps formed after the side plates 130 are assembled with the main housing 110. This split system, consisting of the opening design of the main housing 110 and the detachable structure of the end caps 120 and side plates 130, fundamentally eliminates the drawback of a monolithic body making it difficult to fully coat the complex internal structure. This allows the coating to completely cover all surfaces inside the body 10 that come into contact with high-temperature steam, truly achieving protection without any dead corners.

[0040] See Figure 3 The main housing 110 has ventilation openings 111 on its upper and lower sides, which are used to connect ventilation ducts. The ventilation ducts are made of stainless steel to further improve corrosion resistance.

[0041] See Figure 1 and Figure 2 It also includes a frame 50, on which the body 10 is fixedly mounted. A main unit 40 is provided on the frame 50, and the main unit 40 is connected to the rotor 30 in a transmission connection.

[0042] See Figure 1 It also includes shock-absorbing pads 60 provided between the body 10 and the frame 50 and between the host 40 and the frame 50.

[0043] See Figure 1 and Figure 2 The rotor 30 includes a male rotor 310 and a female rotor 320.

[0044] The foregoing has shown and described the basic principles, main features, and advantages of this utility model. Those skilled in the art should understand that this utility model is not limited to the above embodiments. The embodiments and descriptions in the specification are merely illustrative of the principles of this utility model. Various changes and modifications can be made to this utility model without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection of this utility model is defined by the appended claims and their equivalents.

Claims

1. A novel corrosion-resistant steam blower, characterized in that: Includes a body (10), an air compression chamber (20) is provided inside the body (10), and a rotor (30) that rotates relative to the body (10) is provided inside the air compression chamber (20); The body (10) is made of stainless steel and has a Hastelloy coating on its surface; The rotor (30) is made of stainless steel and has a Hastelloy coating on its surface.

2. The novel corrosion-resistant steam blower according to claim 1, characterized in that: The body (10) includes a main shell (110), an end cap (120), and a side plate (130); The main housing (110) has openings on the front, rear, left, and right sides; Two end caps (120) are provided and located on the front and rear sides of the main housing (110). The end caps (120) are connected to the main housing (110) to close the corresponding openings. Two side plates (130) are provided and located on the left and right sides of the main housing (110). The side plates (130) are connected to the main housing (110) to close the corresponding openings.

3. The novel corrosion-resistant steam blower according to claim 2, characterized in that: Ventilation openings (111) are provided on the upper and lower sides of the main housing (110), and the ventilation openings (111) are used to connect ventilation pipes.

4. The novel corrosion-resistant steam blower according to claim 1, characterized in that: It also includes a frame (50), the body (10) is fixedly installed on the frame (50), the main unit (40) is provided on the frame (50), and the main unit (40) is connected to the rotor (30) in a transmission connection.

5. A novel corrosion-resistant steam blower according to claim 4, characterized in that: It also includes shock-absorbing pads (60) provided between the body (10) and the frame (50) and between the host (40) and the frame (50).

6. A novel corrosion-resistant steam blower according to any one of claims 1 to 5, characterized in that: The rotor (30) includes a male rotor (310) and a female rotor (320).

7. A novel corrosion-resistant steam blower according to any one of claims 1 to 5, characterized in that: The stainless steel used is 2Cr13 stainless steel.

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