Roller suspension arm device with core side-hung manhole
By using a roller boom device with a core swing manhole in a large low-temperature tower, the problems of limited size and difficulty in manpower in the existing technology are solved, and flexible adjustment of the core structure and safe and convenient operation are achieved, and the service life and maintenance efficiency of the equipment are improved.
Patent Information
- Application Number
- CN202421379820.1
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-06-17
- Publication Date
- 2025-02-28
- Estimated Expiration
- 2034-06-17
AI Technical Summary
In large low-temperature towers, the existing manhole rotary boom structure with core only has one direction of freedom, which limits the size of the core seal plate, resulting in interference during opening and closing, unable to open or close normally, and when the weight exceeds 30kg, it is difficult to operate manpower, posing a safety hazard.
The roller boom device with a core swinging manhole is adopted. By setting a roller device on the rotating boom, the manhole flange cover is swinged along the unique degree of freedom. The roller can roll along the rotating boom, achieving flexible adjustment of the core sealing plate, avoiding interference, and increasing the multi-degree of freedom movement of the boom through the roller device.
The use of boom structure and core structure in large-scale low-temperature towers simultaneously avoids the problems of manpower opening and material retention, improves operational convenience, eliminates safety hazards, and improves the service life of the equipment and reduces maintenance costs.
Smart Images
Figure 00000000_0000_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a manhole for a large low-temperature tower, in particular to a roller suspension arm device with a core-opening manhole. Background Art
[0002] In large cryogenic tower projects, due to the low temperature conditions, materials often crystallize and agglomerate, which makes it very easy to deposit and clog the barrel sections of each manhole, turning into crystals or corrosive residual liquid adhering to the barrel sections, thus affecting the normal opening and closing of the manholes and even the expected service life of the equipment. Therefore, we consider adding a core to prevent materials from entering or being retained.
[0003] Problems:
[0004] When a manhole with a core is used on a low-temperature tower, a general manhole rotating boom structure has only one degree of freedom in one direction when opening and closing, and the core can only move in a circle around the boom pin along with the flange cover and the boom rod. This limits the size of the core sealing plate. If the sealing plate is made larger, it will interfere with the manhole cylinder section during opening and closing, resulting in failure to open or close normally. If the sealing plate is made smaller, the gap between the manhole cylinder section and the manhole cylinder section cannot be guaranteed. At this time, the purpose of preventing materials from entering the cylinder section cannot be achieved. Therefore, this general rotating boom structure has limitations.
[0005] On the other hand, if the rotating boom structure is not adopted, the manhole cover with core can only be opened manually in parallel. However, once the weight of the component exceeds 30kg, it is very difficult for manual operation and there are safety hazards. Utility Model Content
[0006] In order to solve the defects of the above-mentioned prior art, the utility model provides a roller boom device with a core flat-opening manhole. The utility model solves the limitations of the general rotating boom structure used in low-temperature tower equipment and utilizes the new roller boom structure to meet the requirements of core installation and normal opening and closing.
[0007] In order to achieve the above technical objectives, the utility model adopts the following technical solutions: a roller boom device with a core-opening manhole, comprising a rotating boom and a roller device arranged on the rotating boom, the lower end of the roller device is used to connect the manhole flange cover, when the rotating boom rotates, under the constraint of the only degree of freedom of the manhole flange cover, the roller device can roll along the rotating boom, so that the manhole flange cover opens the manhole horizontally along the only degree of freedom.
[0008] Furthermore, the roller device includes a roller, two side plates, and a lifting ring, the roller is installed on the two side plates, the groove of the roller is embedded in the horizontal rod of the rotating boom, and limit stop rings are provided at both ends of the horizontal rod to limit the rolling distance of the roller; the lifting ring is installed at the lower ends of the two side plates and hooks the lifting ring of the manhole flange cover, so that the lifting rings can move freely.
[0009] Furthermore, a core support tube is installed on the inner wall of the manhole flange cover, a core sealing plate is installed on the inner end of the core support tube, the core sealing plate matches the shape of the inner wall of the equipment cylinder, and a gap L1=3mm is formed between the outer periphery of the core sealing plate and the equipment cylinder.
[0010] Furthermore, the manhole flange cover is matched with a manhole flange, the manhole flange is fixed to the equipment cylinder through a manhole cylinder section, the manhole flange cover and the manhole flange are fixedly connected by bolts; and a vent hole is provided on the manhole flange cover.
[0011] Furthermore, a support plate is provided at the end of the rotating boom.
[0012] In summary, the utility model has achieved the following technical effects:
[0013] The utility model enables the boom structure and the core structure to be used simultaneously in the manhole of a large cryogenic tower, avoiding the situation where manual labor is required to open the manhole or materials are retained in the cylinder section, thereby improving the convenience of operation, indirectly eliminating potential safety hazards, increasing the expected service life of the equipment, and reducing maintenance costs;
[0014] The utility model is applicable to both traditional circular manholes and elliptical manholes. In the form of multiple degrees of freedom, similar structures can maintain smooth and unobstructed opening. BRIEF DESCRIPTION OF THE DRAWINGS
[0015] Figure 1 This is a front view of a roller boom device with a core-opened manhole provided by an embodiment of the utility model;
[0016] Figure 2 yes Figure 1 Schematic cross-sectional view of ;
[0017] Figure 3 It is a schematic diagram of the roller. DETAILED DESCRIPTION
[0018] The utility model is further described in detail below in conjunction with the accompanying drawings.
[0019] This specific embodiment is merely an explanation of the present invention and is not a limitation of the present invention. After reading this specification, those skilled in the art may make non-creative modifications to the present embodiment as needed, but such modifications are protected by patent law as long as they are within the scope of the claims of the present invention.
[0020] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.
[0021] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present utility model, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.
[0022] In the present invention, unless otherwise clearly specified and limited, the terms "install", "connect", "connect", "fix" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.
[0023] In the present utility model, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.
[0024] Example:
[0025] Figure 1 This is a front view of a roller boom device with a core flat manhole. Figure 2 yes Figure 1 A cross-sectional diagram of Figure 3 It is a schematic diagram of a roller, comprising a rotating boom 1 and a roller device 2 arranged on the rotating boom 1. The lower end of the roller device 2 is used to connect to a manhole flange cover 5. When the rotating boom 1 rotates, under the constraint of the only degree of freedom of the manhole flange cover 5, the roller device 2 can roll along the rotating boom 1, so that the manhole flange cover 5 opens the manhole horizontally along the only degree of freedom.
[0026] Specifically, the roller device 2 includes a roller, two side plates, and a lifting ring. The roller is installed on the two side plates. The groove of the roller is embedded in the horizontal rod of the rotating boom 1. Limiting rings 101 are provided at both ends of the horizontal rod to limit the rolling distance of the roller. The two side plates are located on both sides of the horizontal rod to support the roller and the lifting ring; the lifting ring is installed at the lower ends of the two side plates and hooks the lifting ring 501 of the manhole flange cover 5, so that the lifting ring and the lifting ring 501 can move freely.
[0027] The utility model provides a roller device on the boom, and the roller device can roll along the horizontal rod to change its own position. When the boom rotates, an external force is applied to drive the manhole flange cover 5 to move outward. Since the manhole flange cover 5 has only one degree of freedom in one direction, and the roller can move on the horizontal rod, the boom rotates, the roller rolls, and the manhole flange cover 5 moves outward at the same time, so that the manhole flange cover 5 only moves in this one degree of freedom direction, and enters and exits the manhole horizontally. After the core sealing plate 9 completely leaves the manhole flange 6, the manhole flange cover 5 loses its constraint and has multiple degrees of freedom in multiple directions. The boom continues to rotate, and the manhole flange cover 5 can rotate with the boom, no longer extend horizontally, and the roller no longer rolls. The manhole flange cover 5 extends horizontally and rotates away, which will not affect the structure of the core sealing plate 9 and will also leave space for workers to enter and exit the manhole.
[0028] The inner wall of the manhole flange cover 5 is installed with a core support tube 4, and the inner end of the core support tube 4 is installed with a core sealing plate 9, the core sealing plate 9 is consistent with the inner wall shape of the equipment cylinder 10, and the gap L1 between the outer periphery of the core sealing plate 9 and the equipment cylinder 10 is 3mm.
[0029] The manhole flange cover 5 is matched with a manhole flange 6, and the manhole flange 6 is fixed to the equipment cylinder 10 through a manhole cylinder section 3. The manhole flange cover 5 and the manhole flange 6 are fixedly connected by bolts 7; a vent hole 8 is opened on the manhole flange cover 5.
[0030] A support plate 102 is provided at the end of the rotating boom 1 .
[0031] The utility model arranges a roller device on the boom, which adds a set of freedom of movement left and right along the direction of the boom for the boom rod, the flange cover and the core body, so that they can automatically adjust their own position state in real time while making circular motion around the boom latch, ensuring that the core body sealing plate and the manhole cylinder section can always maintain unimpeded movement parallel to the axial direction of the manhole cylinder section under the premise of maintaining a circumferential gap of only 3mm.
[0032] The above description is only a preferred implementation mode of the present invention, and does not limit the present invention in any form. Any simple modification, equivalent changes and modifications made to the above embodiments based on the technical essence of the present invention are within the scope of the technical solution of the present invention.
Claims
1. A roller boom device with a core-opened manhole, characterized in that: The invention comprises a rotating boom (1) and a roller device (2) arranged on the rotating boom (1); the lower end of the roller device (2) is used to connect a manhole flange cover (5); when the rotating boom (1) rotates, under the constraint of the single degree of freedom of the manhole flange cover (5), the roller device (2) can roll along the rotating boom (1), so that the manhole flange cover (5) opens the manhole horizontally along the single degree of freedom.
2. A roller boom device with a core-opened manhole according to claim 1, characterized in that: The roller device (2) comprises a roller, two side plates and a lifting ring, wherein the roller is mounted on the two side plates, the groove of the roller is embedded in the horizontal rod of the rotating boom (1), and both ends of the horizontal rod are provided with limit stop rings (101) to limit the rolling distance of the roller; the lifting ring is mounted on the lower ends of the two side plates and hooks the lifting ring (501) of the manhole flange cover (5) so that the lifting ring and the lifting ring (501) can move freely.
3. The roller boom device with a core-opened manhole according to claim 1, characterized in that: The inner wall of the manhole flange cover (5) is installed with a core support tube (4), and the inner end of the core support tube (4) is installed with a core sealing plate (9). The shape of the core sealing plate (9) matches the inner wall of the equipment cylinder (10), and the gap L1=3mm between the outer periphery of the core sealing plate (9) and the equipment cylinder (10).
4. A roller boom device with a core-opened manhole according to claim 3, characterized in that: The manhole flange cover (5) is matched with a manhole flange (6), and the manhole flange (6) is fixed to the equipment cylinder (10) through a manhole cylinder section (3). The manhole flange cover (5) and the manhole flange (6) are fixedly connected by bolts (7); and a vent hole (8) is provided on the manhole flange cover (5).
5. The roller boom device with a core-opened manhole according to claim 1, characterized in that: A support plate (102) is provided at the end of the rotating boom (1).