A boiler header

Abstract

The utility model relates to a boiler equipment technical field, concretely relates to a boiler collecting box, including the collecting box cylinder, the reciprocating screw rod is rotationally arranged in the collecting box cylinder, the transmission disc is threadedly connected on the reciprocating screw rod, the outer ring surface of transmission disc is rotationally connected with the rotating ring, the outer ring surface of rotating ring is fixed with the brush, the slide bar is rotationally arranged in the collecting box cylinder, the slide bar is slidably penetrated through the transmission disc, the slide groove is arranged on the outer side of slide bar, the driving gear is slidably connected on the outer side of slide bar, the inner ring side of driving gear is equipped with the sliding block that slides in the slide groove, the inner ring side of one end of rotating ring near driving gear is surrounded with the internal tooth groove, one end of driving gear near transmission disc is rotationally connected with transmission disc, the driving mechanism for driving the reciprocating screw rod and slide bar rotation is equipped on the outer side of collecting box cylinder, through above -mentioned structure, the rotating disc drives the brush to carry out the linear movement brush washing to the collecting box cylinder inner wall and also carries out the rotary brush washing, improves the contact area of brush and scale, thereby can improve the thoroughness of scale removal.

Description

Technical Field

[0001] This utility model relates to the field of boiler equipment technology, specifically to a boiler header. Background Technology

[0002] The boiler header is the "piping hub" of the boiler; it is a cylindrical pressure vessel. Its core function is to collect, mix, and evenly distribute the working fluid (water or steam) into multiple parallel pipes, thereby organizing and coordinating the water circulation and steam-water flow of the entire boiler. It is a key component to ensure the safe and efficient operation of the boiler. After prolonged use, a significant amount of scale builds up on the inner wall of the boiler header. This scale can easily clog the pipe openings, affecting water flow and causing the boiler to malfunction. Therefore, regular cleaning is necessary.

[0003] Chinese utility model patent document CN217604066U discloses a boiler header that is easy to clean. The device includes a base, a motor, a housing, two sets of brackets, a coupling, a lead screw, two sets of guide rods, a cleaning ring, and a cap. The top of the base has a vertical plate, and the motor is fixedly installed on the left end of the vertical plate. The bottom of the housing is installed on the top of the base through two sets of brackets. The lead screw rotates through the left end of the housing and is connected to the output end of the motor through the coupling. The two sets of guide rods are fixedly installed in the housing. The middle of the cleaning ring has a connecting plate, which is threaded to the lead screw and slides through the two sets of guide rods. The outer ring of the cleaning ring has multiple sets of brushes that contact the inner wall of the housing. The top of the housing has a dosing pipe, and the cap is placed on the dosing pipe. The right end of the housing has a drain pipe with a valve. However, when using the above device, the brushes can only move in a straight line to scrub the inner wall of the housing, resulting in insufficient cleaning of the inner wall. Utility Model Content

[0004] The purpose of this utility model is to provide a boiler header that solves the problem mentioned in the background art that when using a boiler header, the brush can only move in a straight line to brush the inner wall of the header, resulting in insufficient cleaning of the inner wall of the header.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution: A boiler header includes a header cylinder, a reciprocating screw rotatably mounted inside the header cylinder along its central axis, a transmission disc threadedly connected to the reciprocating screw, a rotating ring rotatably connected to the outer ring surface of the transmission disc, a brush fixedly mounted on the outer ring surface of the rotating ring to slide against the inner wall of the header cylinder, a slide rod rotatably mounted inside the header cylinder parallel to the reciprocating screw, the slide rod slidingly passing through the transmission disc, a groove opened along its central axis on the outer surface of the slide rod, a drive gear slidably connected to the outer surface of the slide rod, a slider slidably placed in the groove on the inner ring side of the drive gear, an inner tooth groove meshing with the tooth surface of the drive gear on the inner ring side of the rotating ring near the drive gear, and a drive mechanism for driving the reciprocating screw and slide rod to rotate on the outer side of the header cylinder.

[0006] A further technical solution is that the inner side of the rotating ring is provided with a circular groove, and the outer side of the transmission disc is provided with a limiting ring that is movably placed in the circular groove. The center of the circular groove coincides with the center of the limiting ring, and the limiting ring slides and fits against the groove wall of the circular groove.

[0007] A further technical solution is that a connecting ring groove is provided around the slide rod on the side of the transmission disk near the drive gear, and a connecting ring is movably placed in the connecting ring groove at the end of the drive gear near the transmission disk. The center of the connecting ring groove coincides with the center of the connecting ring. The cross-sections of the connecting ring and the connecting ring groove are both dovetail-shaped and fit together. The connecting ring slides and fits against the groove wall of the connecting ring groove.

[0008] A further technical solution is that the drive mechanism includes a motor, the motor has a header cylinder at one end, the two ends of the reciprocating screw respectively pass through the header cylinder in a sealed rotation, and one end of the screw is connected to the output shaft of the motor for transmission, and the other end is fixedly connected to a drive gear. The end of the slide rod near the drive gear passes through the header cylinder in a sealed rotation and is connected to a transmission gear that meshes with the drive gear.

[0009] A further technical solution is to fix two cleaning ports on the bottom sides of both ends of the header cylinder, and the cleaning ports are detachably equipped with end caps.

[0010] Compared with the prior art, the beneficial effects of this utility model are: In this invention, a drive mechanism rotates a reciprocating screw and a sliding rod. The screw thread engages with the sliding rod, causing a transmission disc to move along the central axis of the screw. The transmission disc drives a rotating ring to move, which in turn drives a brush to move laterally and perform linear brushing on the inner wall of the header. Simultaneously, the sliding rod rotates, driving a drive gear to rotate. The drive gear meshes with the internal gear groove, causing the rotating ring to rotate along the central axis of the screw. This rotation of the rotating ring drives the brush to rotate and brush the inner wall of the header. Through this structure, when cleaning the inner wall of the header, the rotating disc drives the brush to perform linear brushing while simultaneously rotating and brushing the inner wall, increasing the contact area between the brush and the scale, thereby improving the thoroughness of scale removal. Attached Figure Description

[0011] Figure 1 This is a schematic diagram of a boiler header structure according to the present invention.

[0012] Figure 2 This is a cross-sectional view of a boiler header according to the present invention.

[0013] Figure 3 This is a schematic diagram of the disassembled structure of the transmission disc and rotating ring of this utility model.

[0014] Figure 4 This utility model Figure 3 Enlarged structural diagram at point A in the middle.

[0015] Icons: 1-Gun cylinder, 2-Reciprocating lead screw, 3-Transmission disc, 4-Rotating ring, 5-Brush, 6-Slide rod, 7-Slide groove, 8-Drive gear, 9-Slider, 10-Internal tooth groove, 11-Circular groove, 12-Limit ring, 13-Connecting ring, 14-Motor, 15-Drive gear, 16-Transmission gear, 17-Cleaning port, 18-End cover, 19-Connecting ring groove. Detailed Implementation

[0016] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present utility model and are not intended to limit the present utility model.

[0017] All electrical components involved in this application are prior art. Those skilled in the art understand their connection methods. With the help of those skilled in the art, all electrical components in this application and their compatible power supplies can be connected by wires. According to the actual situation, a suitable controller can be selected to meet the control requirements. For specific connections and control sequences, please refer to the description below. The electrical connection between each electrical component is completed in the order of operation. The detailed connection methods are well known in the art. The following mainly introduces the working principle and process, and will not describe the electrical control.

[0018] Example 1 Reference Figures 1 to 4 This utility model discloses a boiler header, including a header cylinder 1. In this application, a series of bent pipe assemblies (not shown in the figures) can be installed on the header cylinder 1. The bent pipe assemblies are commonly known to those skilled in the art for their ability to uniformly distribute and heat the working fluid, and the corresponding installation relationships and structures can be directly obtained from this common knowledge. A reciprocating screw 2 is rotatably mounted inside the header cylinder 1 along its central axis. A transmission disc 3 is threadedly connected to the reciprocating screw 2. A rotating ring 4 is rotatably connected to the outer ring surface of the transmission disc 3. A brush 5 is fixedly mounted on the outer ring surface of the rotating ring 4, slidingly contacting the inner wall of the header cylinder 1. Inside the header cylinder 1, a sliding rod 6 is rotatably mounted on a parallel reciprocating lead screw 2. The sliding rod 6 slides through the transmission disc 3. A groove 7 is provided on the outer surface of the sliding rod 6 along its central axis. A drive gear 8 is slidably connected to the outer surface of the sliding rod 6. A slider 9 is provided on the inner ring side of the drive gear 8 and is slidably placed in the groove 7. An inner tooth groove 10 is provided on the inner ring side of the rotating ring 4 near the drive gear 8 and is meshed with the tooth surface of the drive gear 8. The end of the drive gear 8 near the transmission disc 3 is rotatably connected to the transmission disc 3 around the central axis of the sliding rod 6. A drive mechanism for driving the reciprocating lead screw 2 and the sliding rod 6 to rotate is provided on the outer surface of the header cylinder 1.

[0019] In this embodiment, the reciprocating screw 2 and slide bar 6 are rotated by the drive mechanism. The threaded engagement of the reciprocating screw 2 with the slide bar 6 causes the transmission disk 3 to move along the central axis of the reciprocating screw 2. The transmission disk 3 drives the rotating ring 4 to move, and the rotating ring 4 drives the brush 5 to move laterally to perform linear brushing on the inner wall of the header cylinder 1. At the same time, the rotation of the slide bar drives the drive gear 8 to rotate. The drive gear 8 meshes with the internal gear groove 10 and drives the rotating ring 4 to rotate along the central axis of the reciprocating screw 2. The rotation of the rotating ring 4 drives the brush 5 to rotate and brush the inner wall of the header cylinder 1. Through the above structure, when cleaning the inner wall of the header, the rotating disk drives the brush 5 to perform linear brushing on the inner wall of the header cylinder 1, and at the same time drives the brush 5 to rotate and brush the inner wall of the header cylinder 1, increasing the contact area between the brush 5 and the scale, thereby improving the thoroughness of scale removal.

[0020] In this design, by setting a sliding groove 7 and a slider 9, the drive gear 8 can slide along the sliding rod 6. When the sliding rod 6 rotates, the sliding groove 7 and the slider 9 cooperate to limit the drive gear 8, thereby driving the drive gear 8 to rotate. The drive gear 8 is rotatably connected to the transmission disk 3. In use, while the rotating disk drives the drive gear 8 to move, the drive gear 8 can also rotate around the outside of the sliding rod 6.

[0021] Example 2 Based on Example 1, referring to Figures 1 to 4 The inner side of the rotating ring 4 is provided with a circular groove 11, and the outer side of the transmission disk 3 is provided with a limiting ring 12 that is movably placed in the circular groove 11. The center of the circular groove 11 coincides with the center of the limiting ring 12, and the limiting ring 12 slides against the groove wall of the circular groove 11. Specifically, by setting the circular groove 11 and the limiting ring 12, the rotating ring 4 is stably connected to the outer ring side of the transmission disk 3, so that the rotating ring 4 rotates relative to the center of the transmission disk 3.

[0022] Example 3 Based on Example 1, referring to Figures 1 to 4 A connecting ring groove 12 is provided around the slide rod 6 on the side of the transmission disk 3 near the drive gear 8. A connecting ring 13 is movably placed in the connecting ring groove 12 at the end of the drive gear 8 near the transmission disk 3. The center of the connecting ring groove 12 coincides with the center of the connecting ring 13. The cross sections of the connecting ring 13 and the connecting ring groove 12 are both dovetail-shaped and fit together. The connecting ring 13 slides against the groove wall of the connecting ring groove 12.

[0023] In this embodiment, the connecting ring 13 is movably placed in the connecting ring groove 12 to ensure that the drive gear 8 can rotate relative to the central axis of the slide rod 6. The cross sections of the connecting ring 13 and the connecting ring groove 12 are both dovetail-shaped and fit together to ensure that the connecting ring 13 is stably connected in the connecting ring groove 12, thereby ensuring that the drive gear 8 is stably connected to the transmission disk 3 for rotation. This way, when the transmission disk 3 moves, it will drive the drive gear 8 to move without affecting the rotation of the drive gear 8.

[0024] Example 4 Based on Example 1, referring to Figures 1 to 4 The drive mechanism includes a motor 14, which has a header cylinder 1 at one end. The two ends of the reciprocating screw 2 are respectively sealed and rotated through the header cylinder 1, and one end of the screw 2 is connected to the output shaft of the motor 14 for transmission. The other end is fixedly connected to the drive gear 15. The end of the slide rod 6 close to the drive gear 15 is sealed and rotated through the header cylinder 1 and connected to the transmission gear 16 that meshes with the drive gear 15.

[0025] In this embodiment, the control motor 14 drives the reciprocating lead screw 2 to rotate, the reciprocating lead screw 2 rotates, the drive gear 15 rotates, the drive gear 15 meshes with the transmission gear 16, the transmission gear 16 rotates, and the transmission gear 16 drives the slide rod 6 to rotate, so that the slide rod 6 rotates in cooperation with the slide groove 7 and the slider 9, thereby driving the drive gear 8 to rotate.

[0026] Example 5 Based on Example 1, referring to Figures 1 to 4 The bottom sides of both ends of the collection cylinder 1 are respectively fixedly connected to two cleaning ports 17, and the cleaning ports 17 are detachably provided with end caps 18.

[0027] In this embodiment, the end cap 18 corresponding to the cleaning port 17 can be opened and closed, which makes it convenient to open the cleaning port 17 to handle and discharge scale. It should be noted that, preferably, the bottom sides of the transmission disc 3 are fixedly connected to the fixing rods, and the end of the fixing rod away from the transmission disc 3 is connected to the scraper (not shown in the figure). The scraper slides in contact with the inner bottom wall of the collection tank 1. By setting the scraper, when the scale is removed and freely deposited at the bottom of the collection tank 1, the scraper can push the scale deposited with the movement of the transmission disc 3. In this way, the scale can be concentrated and pushed to the two sides of the collection tank 1, that is, the positions of the cleaning ports 17 at both ends, which facilitates the rapid collection of scale.

[0028] Although the present invention has been described herein with reference to several illustrative embodiments, it should be understood that many other modifications and implementations can be devised by those skilled in the art, which will fall within the scope and spirit of the principles disclosed herein. More specifically, various variations and modifications can be made to the components and / or layout of the subject matter combination within the scope of the disclosure, drawings, and claims. Besides variations and modifications to the components and / or layout, other uses will be apparent to those skilled in the art.

Claims

1. A boiler header, comprising a header cylinder (1), characterized in that: A reciprocating screw (2) is rotatably mounted inside the header cylinder (1) along its central axis. A transmission disc (3) is threadedly connected to the reciprocating screw (2). A rotating ring (4) is rotatably mounted on the outer ring surface of the transmission disc (3). A brush (5) is fixedly mounted on the outer ring surface of the rotating ring (4) and slides against the inner wall of the header cylinder (1). A sliding rod (6) parallel to the reciprocating screw (2) is rotatably mounted inside the header cylinder (1). The sliding rod (6) slides through the transmission disc (3). A groove (7) is opened on the outer side of the sliding rod (6) along its central axis. (6) A drive gear (8) is slidably connected on the outer side. The inner ring side of the drive gear (8) is provided with a slider (9) that is slidably placed in the slide groove (7). The inner ring side of the rotating ring (4) near the drive gear (8) is surrounded by an inner tooth groove (10) that meshes with and is connected to the tooth surface of the drive gear (8). The end of the drive gear (8) near the transmission disk (3) is rotatably connected to the transmission disk (3) around the central axis of the slide rod (6). The outer side of the collection box (1) is provided with a drive mechanism for driving the reciprocating screw (2) and the slide rod (6) to rotate.

2. A boiler header according to claim 1, characterized in that: The inner side of the rotating ring (4) is provided with a circular groove (11), and the outer side of the transmission disk (3) is provided with a limiting ring (12) that is movably placed in the circular groove (11). The center of the circular groove (11) coincides with the center of the limiting ring (12), and the limiting ring (12) slides against the groove wall of the circular groove (11).

3. A boiler header according to claim 1, characterized in that: The transmission disc (3) has a connecting ring groove (19) around the slide rod (6) on the side near the drive gear (8). The drive gear (8) is connected to a connecting ring (13) that is movably placed in the connecting ring groove (19) at one end near the transmission disc (3). The center of the connecting ring groove (19) coincides with the center of the connecting ring (13). The cross-sections of the connecting ring (13) and the connecting ring groove (19) are both dovetail-shaped and fit together. The connecting ring (13) slides against the groove wall of the connecting ring groove (19).

4. A boiler header according to claim 1, characterized in that: The drive mechanism includes a motor (14), which is provided at one end of the header (1). The two ends of the reciprocating screw (2) are respectively sealed and rotated through the header (1), and one end of the screw is connected to the output shaft of the motor (14) for transmission. The other end is fixedly connected to a drive gear (15). The end of the slide rod (6) close to the drive gear (15) is sealed and rotated through the header (1) and connected to a transmission gear (16) that meshes with the drive gear (15).

5. A boiler header according to claim 1, characterized in that: The bottom sides of both ends of the collection cylinder (1) are respectively fixedly connected to two cleaning ports (17), and the cleaning ports (17) are detachably provided with end caps (18).

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