Steel pipe degreasing device

Abstract

The utility model relates to a steel pipe degreasing device which comprises a frame body, a consignment mechanism, a steam injection mechanism and a compressed air injection mechanism are installed in the frame body, the consignment mechanism is used for lifting and achieving movement of a steel pipe, the frame body is provided with two through holes which are used for the steel pipe to penetrate through and are communicated with each other, and the steel pipe penetrates through the two through holes and is located on the consignment mechanism. The steam injection mechanism is used for being connected with external steam equipment, the compressed air injection mechanism is used for being connected with external air supercharging equipment, the steam injection mechanism is located in front of the compressed air injection mechanism, and a steel pipe is subjected to steam cleaning and degreasing through the steam injection mechanism and then is blow-dried through the compressed air injection mechanism to achieve degreasing operation. The device is ingenious in structure, the steel pipe sequentially passes through the steam injection mechanism, the compressed air injection mechanism and the like arranged in the degreasing device in the advancing process, the degreasing effect can be effectively guaranteed, the corrosion resistance of the steel pipe is enhanced while the appearance quality of the steel pipe is improved, and the service life is prolonged.

Description

TECHNICAL FIELD

[0001] The utility model relates to steel pipe processing equipment technical field, specifically a kind of steel pipe degreasing device. BACKGROUND

[0002] Steel pipe is a kind of hollow long strip steel, is used as the pipeline of a large number of fluid, such as petroleum, natural gas, water, coal gas, steam etc., also widely used for manufacturing mechanical parts and engineering structure. Steel pipe is divided into two categories of seamless steel pipe and welded steel pipe (slit pipe), and can be divided into round pipe and special-shaped pipe according to section shape.

[0003] Steel pipe can be contaminated with grease and other organic matter during manufacturing and transportation, and if these substances are not removed, they can affect the welding quality, corrosion resistance and subsequent processing of steel pipe, and since grease is insoluble in acid, if acid pickling is carried out first, the oil stain and the rust covered by the oil stain cannot be removed. Therefore, degreasing is an important step before pickling to ensure the cleanliness of the steel pipe surface and improve the corrosion resistance of the steel pipe.

[0004] The traditional method is to directly flush the steel pipe with alkali water, which has low automation degree and poor cleaning effect, and it is difficult to ensure the quality of the steel pipe, therefore, a steel pipe degreasing device is needed to solve the above technical problems. UTILITY MODEL CONTENT

[0005] In order to overcome the defects in the above prior art, the utility model aims to provide a steel pipe degreasing device, which has a clever structure, and the steel pipe sequentially passes through the steam injection mechanism and the compressed air injection mechanism provided inside the degreasing device during the running process, which can effectively ensure the degreasing effect, improve the appearance quality of the steel pipe, enhance its corrosion resistance and prolong its service life, and is conducive to the promotion and application of the above steel pipe degreasing device in the market.

[0006] In order to achieve the above utility model purpose, the utility model adopts the following technical scheme: a steel pipe degreasing device is used for degreasing the wall surface of steel pipe; the degreasing device includes a frame body, a conveying mechanism for lifting the steel pipe, a steam injection mechanism and a compressed air injection mechanism are installed in the frame body, the frame body has two through holes through which the steel pipe passes and are interconnected, the steel pipe passes through the two through holes and is located on the conveying mechanism, the steam injection mechanism is connected with external steam equipment, the compressed air injection mechanism is connected with external air pressure boosting equipment, the steam injection mechanism is located in front of the compressed air injection mechanism, the steel pipe is first subjected to steam cleaning and degreasing by the steam injection mechanism and then subjected to blow drying by the compressed air injection mechanism to realize degreasing operation.

[0007] As a preferred solution of the present invention, the steam injection mechanism is provided in multiple sets, and the multiple sets of steam injection mechanisms are arranged at intervals along the length direction of the steel pipe.

[0008] As a preferred solution of the present invention, the steam injection mechanism has a main air intake pipe, an injection pipe and a nozzle. The main air intake pipe is used to be supported at the bottom of the injection pipe and is connected to the injection pipe. The injection pipe is arranged in a circular ring shape, and multiple nozzles are arranged at intervals on the injection pipe. The steel pipe passes through the center of the injection pipe.

[0009] As a preferred solution of the present invention, there are four nozzles, which are equidistantly arranged on the spray pipe, and each nozzle can cover a quarter of the surface of the steel pipe.

[0010] As a preferred solution of the present invention, the compressed air injection mechanism and the steam injection mechanism are configured in the same structure.

[0011] As a preferred solution of the present invention, the shipping mechanism includes a roller and a roller bracket, and the roller is rotatably mounted on the roller bracket via a roller shaft.

[0012] As a preferred solution of the present invention, the frame is an open box structure and a cover is installed at the opening, and the cover and the frame can be arranged to cover each other.

[0013] As a preferred solution of the present invention, a mist collector is provided outside the frame, and the mist collector is communicated with the inside of the frame through a mist collecting pipe.

[0014] As a preferred solution of the present invention, a waste liquid tank is further provided outside the frame body, and the waste liquid tank is communicated with the inside of the frame body through a waste liquid recovery pipe.

[0015] As a preferred solution of the present invention, a liquid collection box with an opening is installed inside the frame, the consignment structure is installed on the liquid collection box, and the liquid collection box has a drainage hole connected to the waste liquid recovery pipe.

[0016] Compared with the prior art, the beneficial effects of the present invention are as follows: the steel pipe degreasing device of the present invention has an ingenious structure. By setting a frame and a carrying mechanism capable of lifting the steel pipe inside the frame, the steel pipe can move in an orderly manner along the carrying mechanism under the action of external force, so that the degreasing device can continuously degrease the steel pipe, thereby improving the degreasing efficiency. In addition, by setting a steam injection mechanism and a compressed air injection mechanism on the side of the carrying mechanism, the steel pipe passes through the steam injection mechanism and the compressed air injection mechanism provided inside the degreasing device in sequence during the movement. When the steam contacts the outer surface of the steel pipe, a part of the steam is cooled and adheres to the outer surface of the steel pipe. At the same time, the grease molecules are lighter than water molecules, so that the grease on the steel pipe is separated from the outer surface of the steel pipe and suspended on the water film on the outer surface of the steel pipe. The steam also has the characteristics of high temperature and high pressure. The cooled steam water film and the grease suspended thereon are heated and evaporated, and are then carried away by the impact of the steam, thereby separating from the outer surface of the steel pipe, thereby achieving the purpose of degreasing. When the compressed air injection mechanism is working, the compressed air is transported to the compressed air injection mechanism through the compressed air pipeline, and finally ejected through the nozzle. The compressed air is used to impact the outer surface of the steel pipe to blow away excess water vapor and cool the outer surface of the steel pipe. Finally, the steel pipe is transported out of the degreasing device, which improves the degreasing efficiency of the steel pipe, ensures the quality of the steel pipe, and reduces the impact of water vapor on the steel pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 This is a structural diagram of a steel pipe degreasing device in an embodiment;

[0018] Figure 2 This is a front structural diagram of a steel pipe degreasing device in an embodiment;

[0019] Figure 3 This is a schematic diagram of the back structure of a steel pipe degreasing device in an embodiment;

[0020] Figure 4 This is a side structural diagram of a steel pipe degreasing device in an embodiment;

[0021] Figure 5 2. It is a structural diagram of the consignment mechanism in the embodiment;

[0022] Figure 6 Schematic diagram of a portion of the steam injection mechanism in the embodiment.

[0023] Figure numerals: 1. frame; 1-1. through hole; 2. cover; 3. shipping mechanism; 3-1. roller; 3-2. roller bracket; 3-3. roller shaft; 4. liquid accumulation box; 5. steam injection mechanism; 5-1. main air intake pipe; 5-2. injection pipe; 5-3. nozzle; 6. compressed air injection mechanism; 7. steel pipe; 8. mist collection pipe; 9. waste liquid recovery pipe; 10. mist collector; 11. waste liquid tank. DETAILED DESCRIPTION

[0024] To make the objectives, technical solutions, and advantages of the present invention more clearly apparent, the present invention is described below using specific embodiments illustrated in the accompanying drawings. However, it should be understood that these descriptions are merely illustrative and are not intended to limit the scope of the present invention. Furthermore, descriptions of known structures and technologies are omitted in the following description to avoid unnecessary confusion regarding the concepts of the present invention.

[0025] In the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside", etc., indicating directions or positional relationships, are based on the directions or positional relationships shown in the accompanying drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, they cannot be understood as limitations on the present invention.

[0026] The following is a detailed description of the embodiments of the present invention with reference to the accompanying drawings.

[0027] Example: Figures 1 to 6 As shown, a steel pipe degreasing device is mainly used to degrease the wall surface of the steel pipe 7 to ensure the cleanliness of the surface of the steel pipe 7, thereby improving the corrosion resistance of the steel pipe 7. Specifically, the degreasing device in this embodiment includes a frame 1 in the shape of a box, that is, the frame 1 has a hollow structure. A carrying mechanism 3 for lifting the steel pipe 7 is installed in the frame 1. The steel pipe 7 can continue to move along the carrying mechanism 3 under the action of an external clamping device or a pushing device, so that the degreasing device can continuously degrease the steel pipe 7, thereby improving the degreasing efficiency. In order to be able to perform the degreasing operation on the steel pipe 7, and at the same time to further ensure the dryness of the surface of the steel pipe 7 after degreasing and reduce the impact of water vapor on the surface of the steel pipe 7, a steam injection mechanism 5 and a compressed air injection mechanism 6 are installed in the frame 1. The steam injection mechanism 5 is used to connect to an external steam device, and the compressed air injection mechanism 6 is used to connect to an external air boosting device. The steam injection mechanism 5 is located in front of the compressed air injection mechanism 6. The steel pipe 7 is first steam-cleaned and degreased by the steam injection mechanism 5, and then blown dry by the compressed air injection mechanism 6 to achieve the degreasing operation. There are multiple sets of steam injection mechanisms 5, and the multiple sets of steam injection mechanisms 5 are spaced apart along the length direction of the steel pipe 7, preferably equidistantly, to ensure that the steam can completely cover the surface of the steel pipe 7 and achieve a comprehensive degreasing operation. The compressed air injection mechanism 6 is a set, which is installed after the steam injection mechanism 5, that is, the surface of the steel pipe 7 is first degreased, and then the degreased surface of the steel pipe 7 is dried, thereby ensuring the cleanliness of the surface of the steel pipe 7 and improving the quality of the steel pipe 7 itself.

[0028] When the steam injection mechanism 5 is in operation and the steam contacts the outer surface of the steel pipe 7, a portion of the steam is cooled and adheres to the outer surface of the steel pipe 7. Taking advantage of the fact that grease molecules are lighter than water molecules, the grease on the steel pipe 7 is removed from the outer surface of the steel pipe 7 and suspended in the water film on the outer surface of the steel pipe 7. Because steam is also characterized by high temperature and high pressure, the cooled steam water film and the grease suspended therein are heated and evaporated, and are then carried away by the impact of the steam, thus being removed from the outer surface of the steel pipe 7, achieving the purpose of degreasing.

[0029] When the compressed air injection mechanism 6 is working, the compressed air is transported to the compressed air injection mechanism 6 through the compressed air pipeline, and finally ejected through the nozzle of the compressed air injection mechanism 6. The compressed air is used to impact the outer surface of the steel pipe 7 to blow away excess water vapor and cool the outer surface of the steel pipe 7 at the same time. Finally, the steel pipe 7 is transported out of the degreasing device, thereby improving the degreasing efficiency of the steel pipe, ensuring the quality of the steel pipe, and reducing the impact of water vapor on the steel pipe 7.

[0030] In order to reduce the impact of the compressed air injection mechanism 6 and the steam injection mechanism 5 inside the frame 1 on the outside, and to improve the utilization rate of resources such as steam and air, in this embodiment, a pair of through holes 1-1 that can penetrate each other are opened in the frame 1, one of the through holes 1-1 is the inlet of the steel pipe 7, that is, the inlet for the steel pipe 7 before degreasing to enter the frame 1, and the other through hole 1-1 is the outlet of the steel pipe 7, that is, the outlet for the steel pipe 7 after degreasing to be transported out of the frame 1. The steel pipe 7 is passed through the two through holes 1-1. In order to reduce the probability of the steel pipe 7 shaking during movement, in this embodiment, the steel pipe 7 is passed through the two through holes 1-1 and the shipping mechanism 3 is supported in the middle of the steel pipe 7.

[0031] The steam injection mechanism 5 in this embodiment is ingeniously constructed. Specifically, it comprises a main air intake pipe 5-1, an injection pipe 5-2, and a nozzle 5-3. The main air intake pipe 5-1 is used to connect to an external steam device. The main air intake pipe 5-1 is a straight pipe, installed at the bottom of the injection pipe 5-2 and in communication with the injection pipe 5-2. Therefore, the main air intake pipe 5-1 not only serves as an air intake during this process, but also supports the injection pipe 5-2. The injection pipe 5-2 is annular in shape, and the steel pipe 7 can pass through the center of the injection pipe 5-2 without contacting the injection pipe 5-2. The multiple nozzles 5-3 are spaced, preferably evenly spaced, on the injection pipe 5-2, thereby achieving a comprehensive degreasing operation on the surface of the steel pipe 7.

[0032] In this embodiment, four nozzles 5-3 are provided. This is done to ensure effective degreasing and reduce manufacturing and operating costs. The four nozzles 5-3 are equidistantly spaced from the spray pipe 5-2, with each nozzle 5-3 covering a quarter of the surface of the steel pipe 7, or a 90° fan, thereby completely covering the circumferential outer surface of the steel pipe 7 with steam. If there are fewer than four nozzles 5-3, coverage may be incomplete, resulting in poor degreasing of the steel pipe 7. If there are more than four nozzles 5-3, overlapping coverage may occur, increasing both steam volume and operating costs, impacting user experience.

[0033] In order to ensure that the degreased steel pipe 7 can be further completely blown dry, in this embodiment, the above-mentioned compressed air injection mechanism 6 is arranged in the same structure as the above-mentioned steam injection mechanism 5, that is, the above-mentioned compressed air injection mechanism 6 also has a main air intake pipe 5-1 for intake of air, a jet pipe 5-2 for common air flow and a nozzle 5-3 for ejecting air. The main air intake pipe 5-1 here is used to connect with the external air increase equipment. Similarly, the main air intake pipe 5-1 here is also a straight pipe, which is installed at the bottom of the jet pipe 5-2 and is connected with the jet pipe 5-2. The jet pipe 5-2 is arranged in a circular ring shape. The steel pipe 7 can pass through the center position of the above-mentioned jet pipe 5-2 and is not in contact with the above-mentioned jet pipe 5-2. The multiple nozzles 5-3 are spaced, preferably evenly spaced, on the above-mentioned jet pipe 5-2, so as to achieve a comprehensive drying operation on the surface of the steel pipe 7. Similarly, there are preferably four nozzles 5-3 here. During operation, compressed air is transported to the injection pipe 5-2 through the compressed air pipe in the degreasing device, that is, the main air inlet pipe 5-1 here, and finally ejected through the nozzle 5-3. The compressed air is used to impact the outer surface of the steel pipe 7, blowing away excess water vapor while cooling the outer surface of the steel pipe 7 to ensure the quality of the steel pipe 7.

[0034] In order to simplify the structure of the above-mentioned consignment mechanism 3 and reduce the manufacturing difficulty, the above-mentioned consignment mechanism 3 in this embodiment is mainly composed of a roller 3-1 and a roller bracket 3-2. The above-mentioned roller 3-1 is rotatably mounted on the above-mentioned roller bracket 3-2 through a roller shaft 3-3. Figure 5 As shown, the roller 3 - 1 in this embodiment is a V-shaped roller, which can further ensure the stability and safety of the steel pipe 7 during processing and transportation.

[0035] During the degreasing process of the steel pipe 7, part of the mixture of steam and grease is in gaseous state and floats in the inner cavity of the device, i.e., in the frame 1, and the other part is in liquid state. Therefore, a liquid collection box 4 with an opening for collecting the liquid mixture is installed inside the frame 1, and the shipping structure 3 is installed in the liquid collection box 4. The liquid collection box 4 has a drainage hole connected to the waste liquid recovery pipe 9. A mist collector 10 is provided on the outside of the frame 1. The mist collector 10 is connected to the inside of the frame 1 through a mist collecting pipe 8. The gaseous mixture is drawn away through the mist collector 10 and brought to the waste liquid tank 11 provided on the outside of the frame 1 through the mist collecting pipe 8. The waste liquid tank 11 is connected to the inside of the frame 1 through the waste liquid recovery pipe 9. The liquid mixture flows away through the sewage outlet, i.e., the drainage hole, provided in the liquid collection box inside the equipment, and flows into the waste liquid tank 11 through the waste liquid recovery pipe 9.

[0036] The frame 1 is an open box-like structure with a lid 2 mounted at the opening. The lid 2 is configured to cover the frame 1. When the degreasing device is operating, the lid 2 is closed to prevent the escape of high-temperature steam. The lid 2 also features an observation window for the operator to observe the device's operation.

[0037] The steel pipe degreasing device of this embodiment has an ingenious structure. By providing a frame 1 and a carrying mechanism 3 capable of lifting a steel pipe 7 within the frame 1, the steel pipe 7 can move in an orderly manner along the carrying mechanism 3 under the action of an external force, so that the degreasing device can continuously degrease the steel pipe 7, thereby improving the degreasing efficiency. In addition, by providing a steam injection mechanism 5 and a compressed air injection mechanism 6 on the side of the carrying mechanism 3, the steel pipe 7 passes through the steam injection mechanism 5 and the compressed air injection mechanism 6 provided inside the degreasing device in sequence during its movement. When the steam contacts the outer surface of the steel pipe 7, a portion of the steam is cooled and adheres to the outer surface of the steel pipe 7. At the same time, the grease on the steel pipe 7 is separated from the outer surface of the steel pipe by utilizing the fact that grease molecules are lighter than water molecules, and is suspended on the water film on the outer surface of the steel pipe 7. The steam also has the characteristics of high temperature and high pressure. The cooled steam water film and the grease suspended thereon are heated and evaporated, and are then carried away by the impact of the steam, thereby separating from the outer surface of the steel pipe 7, achieving the purpose of degreasing. When the compressed air injection mechanism 6 is working, the compressed air is transported to the compressed air injection mechanism 6 through the compressed air pipeline, and finally ejected through the nozzle. The compressed air is used to impact the outer surface of the steel pipe 7 to blow away excess water vapor and cool the outer surface of the steel pipe 7. Finally, the steel pipe 7 is transported out of the degreasing device, thereby improving the degreasing efficiency of the steel pipe 7, ensuring the quality of the steel pipe 7, and reducing the impact of water vapor on the steel pipe 7.

[0038] The above description of the disclosed embodiments will enable those skilled in the art to implement or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not limited to the embodiments shown herein, but is intended to conform to the widest scope consistent with the principles and novel features disclosed herein.

[0039] Although this document frequently uses the following terms: 1, frame; 1-1, through hole; 2, cover; 3, shipping mechanism; 3-1, roller; 3-2, roller bracket; 3-3, roller shaft; 4, liquid collection box; 5, steam injection mechanism; 5-1, main air intake pipe; 5-2, injection pipe; 5-3, nozzle; 6, compressed air injection mechanism; 7, steel pipe; 8, mist collection pipe; 9, waste liquid recovery pipe; 10, mist collector; 11, waste liquid tank, etc., the possibility of using other terms is not excluded. These terms are used only to more conveniently describe and explain the essence of the present invention; interpreting them as any additional limitation is contrary to the spirit of the present invention.

Claims

1. A steel pipe degreasing device, characterized in that: Used for degreasing the wall surface of a steel pipe (7); the degreasing device includes a frame (1), wherein a transport mechanism (3), a steam injection mechanism (5) and a compressed air injection mechanism (6) for lifting the steel pipe (7) are installed in the frame (1), the frame (1) has two through holes (1-1) for the steel pipe (7) to pass through and are interconnected, the steel pipe (7) passes through the two through holes (1-1) and is located on the transport mechanism (3), the steam injection mechanism (5) is used to connect with an external steam device, the compressed air injection mechanism (6) is used to connect with an external air boosting device, the steam injection mechanism (5) is located in front of the compressed air injection mechanism (6), and the steel pipe (7) is first steam-cleaned and degreased by the steam injection mechanism (5) and then blown dry by the compressed air injection mechanism (6) to achieve the degreasing operation.

2. A steel pipe degreasing device according to claim 1, characterized in that: The steam injection mechanisms (5) are provided in multiple sets, and the multiple sets of steam injection mechanisms (5) are arranged at intervals along the length direction of the steel pipe (7).

3. The steel pipe degreasing device according to claim 1, characterized in that: The steam injection mechanism (5) comprises a main air intake pipe (5-1), an injection pipe (5-2) and a nozzle (5-3); the main air intake pipe (5-1) is used to be supported at the bottom of the injection pipe (5-2) and is connected to the injection pipe (5-2); the injection pipe (5-2) is arranged in a circular ring shape; a plurality of nozzles (5-3) are arranged at intervals on the injection pipe (5-2); and the steel pipe (7) passes through the center of the injection pipe (5-2).

4. A steel pipe degreasing device according to claim 3, characterized in that: There are four nozzles (5-3), which are equidistantly arranged on the spray pipe (5-2), and each nozzle (5-3) can cover a quarter of the surface of the steel pipe (7).

5. The steel pipe degreasing device according to claim 4, characterized in that: The compressed air injection mechanism (6) and the steam injection mechanism (5) are configured in the same structure.

6. The steel pipe degreasing device according to claim 1, characterized in that: The shipping mechanism (3) comprises a roller (3-1) and a roller bracket (3-2); the roller (3-1) is rotatably mounted on the roller bracket (3-2) via a roller shaft (3-3).

7. The steel pipe degreasing device according to claim 1, characterized in that: The frame (1) is an open box structure, and a cover (2) is installed at the opening. The cover (2) and the frame (1) can be arranged to cover each other.

8. The steel pipe degreasing device according to claim 7, characterized in that: A mist collector (10) is provided outside the frame (1), and the mist collector (10) is connected to the inside of the frame (1) via a mist collecting pipe (8).

9. The steel pipe degreasing device according to claim 8, characterized in that: A waste liquid tank (11) is further provided outside the frame (1), and the waste liquid tank (11) is communicated with the interior of the frame (1) via a waste liquid recovery pipe (9).

10. The steel pipe degreasing device according to claim 9, characterized in that: A liquid collection box (4) with an opening is installed inside the frame (1), the shipping mechanism (3) is installed on the liquid collection box (4), and the liquid collection box (4) has a drainage hole connected to the waste liquid recovery pipe (9).

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