Absorption tower outer pipeline protection structure
By combining an outer casing, a combined casing, a bypass casing, and limiting and heating components, the freezing problem of the external pipeline of the absorption tower in low-temperature environments is solved, and effective insulation of the external pipeline and instruments is achieved, ensuring stable operation of the equipment.
Patent Information
- Application Number
- CN202520864351.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-30
- Publication Date
- 2026-02-17
- Estimated Expiration
- 2035-04-30
AI Technical Summary
In low-temperature winter environments, the external pipelines of the absorption tower are prone to freezing, resulting in loss of fluidity, equipment blockage, or damage. Existing technologies are difficult to effectively prevent freezing and maintain heat.
The system employs a combination structure consisting of an outer sleeve, a combined sleeve, a bypass sleeve, a limiting component, and a heating component. The arrangement of the limiting component on the inner wall of the combined sleeve ensures a stable connection between the heating component and the outer pipeline. The bypass sleeve is used to connect instrument wiring, and the heating component is connected to the power supply, thus achieving effective insulation of the outer pipeline and instruments.
It effectively prevents external pipelines and instruments from freezing in low-temperature environments, ensuring normal operation and achieving overall insulation and antifreeze effect for external pipelines.
Smart Images
Figure CN223924238U_ABST
Abstract
Description
Technical Field
[0001] This utility model belongs to the field of sulfuric acid preparation technology, and more specifically, it relates to a protective structure for the external pipeline of an absorption tower. Background Technology
[0002] Absorption towers, as key equipment in the chemical, environmental protection, and energy fields, are widely used in processes such as gas purification (e.g., desulfurization, denitrification), waste gas treatment, and chemical separation. Their external piping system undertakes the functions of media transmission, circulation, and discharge, and is a core component ensuring the efficient operation of the absorption tower. However, in low-temperature environments during winter, the media inside the pipes is prone to freezing, leading to loss of fluidity, equipment blockage, and even structural damage. Currently, the external piping of absorption towers is often arranged in pairs side-by-side for easy control, but this arrangement makes it difficult to insulate and prevent freezing of the two external pipes. Utility Model Content
[0003] The purpose of this utility model is to provide a protective structure for the external pipeline of an absorption tower, so as to solve the technical problem in the prior art that it is difficult to prevent freezing and keep the external pipelines of two parallel absorption towers warm.
[0004] To achieve the above objectives, the technical solution adopted by this utility model is: to provide an external pipeline protection structure for an absorption tower, comprising:
[0005] There are two outer sleeves, one for fitting onto each of the two outer pipes; the outer sleeves are arranged along the corresponding outer pipes.
[0006] A combined sleeve, arranged vertically, is used to fit onto two outer pipes; the upper end of the combined sleeve is fixedly connected to the lower ends of the two outer sleeves; a connection hole is provided on the wall of the combined sleeve;
[0007] A bypass sleeve is fixedly installed on the outer wall of the combined sleeve and is used to fit onto the instrument on the outer pipeline; the bypass sleeve is provided with a through hole for connecting to the instrument.
[0008] A limiting component assembly is installed inside the combined sleeve and located between the inner wall of the combined sleeve and the outer wall of the outer pipe; the limiting component is provided with a limiting hole;
[0009] A heating element is installed in the combined sleeve and arranged along the length of the combined sleeve; the heating element passes through the plurality of limiting holes and its end passes through the connecting hole to be connected to a power source.
[0010] In one possible implementation, the limiting member is a horizontally arranged support plate, one end of which is fixedly connected to the inner wall of the combined sleeve, and the other end is provided with the limiting hole.
[0011] In one possible implementation, there are multiple limiting member groups, and the multiple limiting members in the limiting member groups are arranged vertically; the heating element is installed on the limiting members in the multiple limiting member groups.
[0012] In one possible implementation, there are multiple limiting member groups, and the multiple limiting members in the limiting member groups are arranged in a spiral; the heating element is mounted on the limiting members in the multiple limiting member groups.
[0013] In one possible implementation, the outer sleeve, the combined sleeve, and the bypass sleeve are all made of thermal insulation material.
[0014] In one possible implementation, an annular groove is formed on the lower outer wall of the outer sleeve, and an annular protrusion is formed on the upper inner wall of the combined sleeve to match the annular groove.
[0015] In one possible implementation, the outer casing includes a straight pipe section and a bend section for installation adapted to fit the outer pipe, with a gasket provided between the straight pipe section and the bend section.
[0016] In one possible implementation, both the outer sleeve and the combined sleeve are split-type structures.
[0017] In one possible implementation, the inner wall of the outer sleeve is provided with a plurality of limiting members, there are two heating members, and the two heating members extend into the two outer sleeves respectively, and the heating members located in the outer sleeves pass through the limiting holes on the limiting members.
[0018] In one possible implementation, a valve is provided at the lower end of the combined sleeve.
[0019] The beneficial effects of the absorption tower external pipeline protection structure provided by this utility model are as follows: Compared with the prior art, this utility model's absorption tower external pipeline protection structure can effectively protect the external pipeline and instruments. Multiple limiting components arranged on the inner wall of the combined sleeve ensure that the heating element is stably positioned between the external pipeline and the combined sleeve, and the heating element is connected to an external power source through a connection hole on the combined sleeve. The wiring connected to the instruments passes through a wiring hole on the bypass sleeve to facilitate instrument control. When the external pipeline is in a low-temperature environment, the heating element starts working, and the heat it generates is transferred to the external pipeline, preventing freezing or damage due to low temperatures and ensuring the normal operation of the external pipeline. Simultaneously, because the two outer sleeves and two bypass sleeves are connected to the combined sleeve, the heat energy inside the combined sleeve also enters the outer sleeves and bypass sleeves, effectively preventing the two external pipelines and the two instruments from freezing. This structure effectively encloses the two outer pipes, and with the help of the outer sleeve, combined sleeve, bypass sleeve and heating element, the two outer pipes can effectively achieve the purpose of heat preservation and antifreeze, so as to ensure the stable and reliable operation of the outer pipes. Attached Figure Description
[0020] To more clearly illustrate the technical solutions in the embodiments of this utility model, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.
[0021] Figure 1 This is a schematic diagram of the internal structure of the external pipeline protection structure of the absorption tower provided in an embodiment of the present utility model;
[0022] Figure 2 for Figure 1 Enlarged view of point A in the middle;
[0023] Figure 3 for Figure 1 Enlarged view of point B in the middle;
[0024] Figure 4 for Figure 1 Enlarged view of point C in the middle;
[0025] Figure 5 This is a front view of the external pipeline protection structure of the absorption tower provided in an embodiment of the present utility model;
[0026] Figure 6 A schematic diagram showing the connection between the external pipeline protection structure and the external pipeline of the absorption tower provided in this embodiment of the utility model;
[0027] Figure 7This is a schematic diagram of the structure of the limiting member provided in an embodiment of the present utility model;
[0028] Figure 8 A schematic diagram showing the usage status of the external pipeline protection structure of the absorption tower provided in this embodiment of the utility model.
[0029] The following are the labeling elements in the figure:
[0030] 10. Outer sleeve; 11. Annular groove; 12. Straight pipe section; 13. Bend pipe section; 20. Combined sleeve; 21. Connecting hole; 22. Annular protrusion; 23. Valve; 30. Bypass sleeve; 31. Cable hole; 40. Limiting element; 41. Limiting hole; 50. Heating element; 60. Outer pipe; 61. Instrument. Detailed Implementation
[0031] To make the technical problems, technical solutions, and beneficial effects 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.
[0032] It should be noted that when a component is referred to as being "fixed to" or "set on" another component, it can be directly on or indirectly on that other component. When a component is referred to as being "connected to" another component, it can be directly connected to or indirectly connected to that other component.
[0033] It should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", and "outer" 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 this utility model 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 this utility model.
[0034] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this utility model, "a plurality of" means two or more, unless otherwise explicitly specified.
[0035] Please see Figures 1 to 8The present invention provides a protective structure for the external pipeline of an absorption tower. The protective structure includes an outer sleeve 10, a connecting sleeve 20, a bypass sleeve 30, a set of limiting components 40, and a heating element 50. Two outer sleeves 10 are provided, each fitted onto one of the two outer pipelines 60. The outer sleeves 10 are arranged along the corresponding outer pipelines 60. The connecting sleeve 20 is vertically arranged and fitted onto the two outer pipelines 60. The upper end of the connecting sleeve 20 is connected and fixed to the lower ends of the two outer sleeves 10. A connecting hole 21 is provided on the wall of the connecting sleeve 20. The bypass sleeve 30 is fixedly installed on... The outer wall of the combined sleeve 20 is used to mount the instrument 61 on the outer pipe 60; the bypass sleeve 30 is provided with a through hole 31 for connecting to the instrument 61; the set of limiting members 40 is installed inside the combined sleeve 20 and is located between the inner wall of the combined sleeve 20 and the outer wall of the outer pipe 60; the limiting member 40 is provided with a limiting hole 41; the heating element 50 is installed in the combined sleeve 20 and is arranged along the length of the combined sleeve 20; the heating element 50 passes through multiple limiting holes 41 and its end passes through the connecting hole 21 to connect to the power supply.
[0036] The absorption tower external pipeline protection structure provided by this utility model, compared with the prior art, can effectively protect the external pipeline 60 and the instrument 61. Multiple limiting members 40 arranged on the inner wall of the combined sleeve 20 ensure that the heating element 50 is stably positioned between the external pipeline 60 and the combined sleeve 20, and the heating element 50 is connected to an external power source through the connection hole 21 on the combined sleeve 20. The wiring connected to the instrument 61 passes through the wiring hole 31 on the bypass sleeve 30 to connect to the instrument 61, facilitating control of the instrument 61. When the external pipeline 60 is in a low-temperature environment, the heating element 50 starts working, and the heat it generates is transferred to the external pipeline 60, preventing the external pipeline 60 from freezing or being damaged due to low temperatures, thus ensuring the normal operation of the external pipeline 60. Simultaneously, since the two outer sleeves 10, the two bypass sleeves 30, and the combined sleeve 20 are connected, the heat energy inside the combined sleeve 20 also enters the outer sleeves 10 and the bypass sleeves 30, effectively preventing the two outer pipes 60 as a whole and the two instruments 61 from freezing. This structure effectively encloses the two outer pipes 60, and under the action of the outer sleeves 10, the combined sleeve 20, the bypass sleeve 30, and the heating element 50, the two outer pipes 60 effectively achieve the purpose of heat preservation and freeze protection, ensuring the stable and reliable operation of the outer pipes 60.
[0037] Please see Figures 1 to 4 , Figure 6 and Figure 7As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, the limiting member 40 is a horizontally arranged support plate, one end of which is fixedly connected to the inner wall of the combined sleeve 20, and the other end has a limiting hole 41. The length of the support plate is moderate, less than the distance between the outer pipeline 60 and the combined sleeve 20, which can effectively limit the internal structure of the combined sleeve 20. The support plate is horizontally arranged, with one end fixed to the inner wall of the combined sleeve 20 to ensure that it will not easily loosen or detach during use; the other end extends towards the outer pipeline 60 and has a limiting hole 41. When installing the heating element 50, the heating element 50 extends along the arrangement direction of the multiple limiting members 40 in the group of limiting members 40, and the heating element 50 passes through the limiting holes 41 on the multiple limiting members 40 to ensure that the heating element 50 works stably and reliably.
[0038] Please see Figure 1 and Figure 6 In one specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, there are multiple sets of limiting members 40, and the multiple limiting members 40 in the sets of limiting members 40 are arranged vertically; the heating element 50 is installed on the limiting members 40 in the multiple sets of limiting members 40; the multiple sets of limiting members 40 are evenly distributed in the combined sleeve 20, and together provide stable limiting support for the heating element 50. In this way, a relatively long heating element 50 can be arranged in the combined sleeve 20, thereby rapidly and uniformly heating the external pipeline 60 inside the combined sleeve 20.
[0039] Please see Figure 1 and Figure 6 As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, there are multiple sets of limiting members 40, and the multiple limiting members 40 in the sets of limiting members 40 are arranged spirally; the heating element 50 is installed on the limiting members 40 in the multiple sets of limiting members 40; in this way, the heating element 50 is arranged more evenly in the combined sleeve 20, and the heating element 50 can quickly and evenly heat the outer pipeline 60 at the center position during operation. Setting multiple sets of limiting members 40 makes the use stability of the absorption tower external pipeline protection structure better, and the entire protection structure can still be used after a certain heating element 50 is damaged.
[0040] As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, the outer sleeve 10, the combined sleeve 20 and the bypass sleeve 30 are all made of heat insulation material, which makes the outer sleeve 10, the combined sleeve 20 and the bypass sleeve 30 have a good heat insulation effect, which can both improve the temperature of the outer sleeve 10 and reduce the waste of heat energy.
[0041] Please see Figure 1 , Figure 4 , Figure 5As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, an annular groove 11 is provided on the lower outer wall of the outer sleeve 10, and an annular protrusion 22 adapted to the annular groove 11 is provided on the upper inner wall of the combined sleeve 20. When installing the combined sleeve 20, the annular protrusion 22 at its upper end is adapted to the annular groove 11 at the lower end of the outer sleeve 10 from the outside to the inside, thereby connecting the combined sleeve 20 and the outer sleeve 10 into a whole. Specifically, multiple screw holes arranged circumferentially are opened on the annular groove 11, and through holes are opened on the annular protrusion 22. Then, multiple screws are used to fix the annular protrusion 22 and the annular groove 11 together.
[0042] Please see Figure 1 , Figure 5 , Figure 7 As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, the outer casing 10 includes a straight pipe section 12 and a bend section 13 for installation adapted to the outer pipeline 60, with a gasket between the straight pipe section 12 and the bend section 13. The straight pipe section 12 and the bend section 13 effectively adapt to the shape of the outer pipeline 60, thus effectively enclosing the outer pipeline 60. Simultaneously, the gasket at the connection between the straight pipe section 12 and the bend section 13 provides good sealing. The gasket is made of high-temperature resistant rubber, effectively preventing heat leakage between the straight pipe section 12 and the bend section 13. When the outer casing 10 is installed with the outer pipeline 60, the gasket fits tightly against the connection between the straight pipe section 12 and the bend section 13, providing a reliable seal.
[0043] As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, both the outer sleeve 10 and the combined sleeve 20 are split-type structures; that is, the outer sleeve 10 includes two half-pipes, which are joined together to form the outer sleeve 10 in use. This split-type structure facilitates the installation of the outer sleeve 10 on the outer pipeline 60 and also facilitates the installation of the limiting component 40 and the heating component 50 inside the outer sleeve 10. Similarly, the combined sleeve 20 includes two half-pipes, which are joined together to form the combined sleeve 20 in use. This split-type structure facilitates the installation of the combined sleeve 20 on the outer pipeline 60 and also facilitates the installation of the limiting component 40 and the heating component 50 inside the combined sleeve 20. A sealing strip is installed between the two half-pipes.
[0044] Please see Figure 1 and Figure 6As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, the inner wall of the outer sleeve 10 is provided with multiple limiting members 40, and there are two heating elements 50, which extend into the two outer sleeves 10 respectively. The heating elements 50 located in the outer sleeve 10 pass through the limiting holes 41 on the limiting members 40. Multiple limiting members 40 are fixedly installed on the inner wall of the outer sleeve 10. Therefore, when arranging the heating elements 50, the length of the heating elements 50 is increased, so that the heating elements 50 enter the outer sleeve 10 and are located in the distance between the outer sleeve 10 and the outer pipeline 60, thereby heating the entire outer pipeline 60. Specifically, two sets of limiting members 40 are symmetrically arranged inside the outer sleeve 10. A temperature sensor is also provided on the outer wall of the outer sleeve 10 for real-time monitoring of temperature changes around the outer sleeve 10 and the heating elements 50.
[0045] Please see Figure 1 , Figure 5 , Figure 6 , Figure 8 As a specific embodiment of the absorption tower external pipeline protection structure provided by this utility model, a valve 23 is provided at the lower end of the combined sleeve 20; after condensation occurs in the outer sleeve 10 and the combined sleeve 20, the condensate flows downward along the inner wall of the outer sleeve 10 and the combined sleeve 20, and is stored at the lower end of the combined sleeve 20. After a certain amount of water is stored in the combined sleeve 20, the valve 23 is opened to discharge the condensate.
[0046] The above are merely preferred embodiments of the present utility model and are not intended to limit the present utility model. Any modifications, equivalent substitutions, and improvements made within the spirit and principles of the present utility model should be included within the protection scope of the present utility model.
Claims
1. An absorber external piping protection structure, characterized by, The utility model relates to a heating device for instrument of outer pipeline, which comprises: outer sleeve, quantity is two, is used for the sleeve respectively on two outer pipes, outer sleeve along the shape of corresponding outer pipe arrangement, joint sleeve, vertical arrangement, and is used for the sleeve on two outer pipes, the lower end of two outer sleeve is fixedly connected with the upper end of joint sleeve, and the pipe wall of joint sleeve is provided with connecting hole, bypass sleeve, fixedly installed on the outer side wall of joint sleeve, and is used for the sleeve on the instrument of outer pipeline, bypass sleeve is provided with wire hole for being connected with instrument, limiting piece group, install in joint sleeve, and be located between the inner wall of joint sleeve and the outer wall of outer pipeline, limiting piece is provided with limiting hole, heating piece, install in joint sleeve, and along the length direction of joint sleeve arrangement, heating piece is arranged in a plurality of limiting hole, and the end passes through connecting hole to connect with power supply.
2. The tower external piping protection structure of claim 1, wherein The limiting piece is a support plate arranged horizontally, one end is fixedly connected to the inner wall of the joint sleeve, and the other end is provided with the limiting hole.
3. The tower external piping protection structure of claim 2, wherein The limiting piece group is a plurality of, and a plurality of limiting pieces in the limiting piece group are arranged vertically, and the heating piece is installed on the limiting piece in the limiting piece group.
4. The tower external piping protection structure of claim 2, wherein The limiting piece group is a plurality of, and a plurality of limiting pieces in the limiting piece group are arranged spirally, and the heating piece is installed on the limiting piece in the limiting piece group.
5. The tower external piping protection structure of claim 1, wherein The outer sleeve, the joint sleeve and the bypass sleeve are all made of heat-insulating material.
6. The tower external piping protection structure of claim 1, wherein The lower end of the outer sleeve is provided with an annular groove, and the upper end of the joint sleeve is provided with an annular protrusion matched with the annular groove.
7. The tower external piping protection structure of claim 1, wherein The outer sleeve comprises a straight pipe segment and a bent pipe segment for matching with the outer pipeline, and a gasket is arranged between the straight pipe segment and the bent pipe segment.
8. The tower external piping protection structure of claim 1, wherein The outer sleeve and the joint sleeve are both split structure.
9. The tower external piping protection structure of claim 1, wherein The inner wall of the outer sleeve is provided with a plurality of limiting pieces, the heating piece is two, and the two heating pieces extend into the two outer sleeves respectively, and the heating piece in the outer sleeve is arranged in the limiting hole of the limiting piece.
10. The tower external piping protection structure of claim 1, wherein The lower end of the joint sleeve is provided with a valve.