A double-layer ice blocking device for a pipeline
By designing a double-layer ice-blocking device and utilizing automated refrigerant delivery and insulation structures, the problems of low efficiency and poor safety of existing ice-blocking devices have been solved, achieving efficient and safe ice-blocking operation.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- LINGAO NUCLEAR POWER
- Filing Date
- 2025-06-23
- Publication Date
- 2026-06-05
AI Technical Summary
Existing ice-blocking devices require manual refrigerant injection, which is inefficient, wastes a lot of liquid nitrogen, and the vaporization of liquid nitrogen affects visibility and poses a safety hazard.
Design a double-layer ice-blocking device, including at least two clamps, each containing a shell, partition, and pipes, which are detachably connected by connectors to form a closed heat-insulating cavity and an ice-blocking channel. Input and output pipes enable automated refrigerant delivery, isolating the refrigerant from heat exchange with the outside environment.
It improves ice blockage efficiency, reduces refrigerant usage and waste, shortens ice blockage time, lowers costs, prevents frostbite, and achieves dynamic balance in refrigerant delivery.
Smart Images
Figure CN224326866U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of pipeline ice blockage technology, and in particular to a double-layer ice blockage device for pipelines. Background Technology
[0002] Ice blockage refers to the process of surrounding a point in a process piping system with external refrigerant, causing the process fluid inside the pipeline to freeze and form a fixed internal blockage. Ice blockage devices are important tools for surrounding process piping systems with external refrigerant. Currently, there are two types of ice blockage devices used in practical applications:
[0003] 1) Open-type clamp: Designed as a box-shaped object, closed at the bottom and sides, and open at the top. The clamp is installed at the pipe section to be iced, and refrigerant is manually filled into the clamp groove. However, it has the following disadvantages: (1) It requires manual filling of the groove with refrigerant, which is inefficient; (2) After liquid nitrogen vaporizes, it produces a large area of white fog that affects the visibility of personnel. It is difficult to control the liquid nitrogen level during filling, and liquid nitrogen overflow causes liquid nitrogen waste and frostbite to personnel.
[0004] 2) Semi-open clamp: Two hollow semi-cylindrical clamps are combined to form a cavity, which is used to contain liquid nitrogen and is also the area where liquid nitrogen exchanges heat with the pipe surface. The sealing surface between the clamps is made of soft sealing gasket (such as soft polytetrafluoroethylene gasket), and the two halves of the clamp are fixed with bolts. However, there are the following disadvantages: (1) Refrigerant needs to be manually poured into the clamp, which is inefficient; (2) After liquid nitrogen vaporizes, it produces a large area of white mist that affects the visibility of personnel. It is difficult to control the liquid nitrogen level during filling. Liquid nitrogen overflow causes liquid nitrogen waste and frostbite to personnel; (3) The space for containing liquid nitrogen is a single cavity. The liquid nitrogen that enters the cavity first exchanges heat with the pipe surface and then vaporizes to generate nitrogen gas. When the nitrogen gas rises, it creates resistance to the liquid nitrogen that enters the cavity later, so that the liquid nitrogen that enters later vaporizes and is discharged from the cavity before it exchanges heat with the pipe surface. The effective utilization rate of liquid nitrogen is low. Utility Model Content
[0005] The technical problem to be solved by this utility model is to provide a double-layer ice-blocking device for pipelines.
[0006] The technical solution adopted by this utility model to solve its technical problem is: a double-layer ice-blocking device for pipelines, including at least two clamps, wherein at least two clamps together clamp and fix the pipeline to be blocked by ice;
[0007] Each of the aforementioned clamps includes a housing, a first partition, a second partition, a filling pipe for filling the insulation medium, an input pipe for refrigerant input, and an output pipe for refrigerant output. The housing is concave. The first partition is interference-fitted to a first end of the housing and protrudes in the concave direction. The second partition is interference-fitted to a second end of the housing and protrudes in the concave direction. The housing, the first partition, and the second partition form a closed insulation cavity, or the housing itself has a closed insulation cavity. The filling pipe is inserted into the housing and communicates with the closed insulation cavity.
[0008] At least two housings corresponding to at least two of the clamps are detachably connected by connectors. At the same time, an ice blockage channel for accommodating refrigerant is formed between at least two housings, at least two first partitions and at least two second partitions. The input pipe and the output pipe are respectively inserted into the housings and communicate with the ice blockage channel.
[0009] Optionally, the housing of any of the clamps includes an outer shell, an inner shell, and at least two side plates, wherein the outer shell and the inner shell are spaced apart from each other, and each side plate is fixedly connected to the side of the outer shell and the inner shell respectively; the first partition is fixedly connected to the first end of the outer shell and the inner shell respectively, and the second partition is fixedly connected to the second end of the outer shell and the inner shell respectively, and the first partition and the second partition protrude along the inner shell in a direction away from the outer shell;
[0010] Alternatively, the housing of any of the clamps includes an outer shell, an inner shell, at least two side plates, and at least two end plates, wherein the outer shell and the inner shell are spaced apart from each other, each end plate is fixedly connected to an end of the outer shell and the inner shell respectively, and each side plate is fixedly connected to a side of the outer shell and the inner shell respectively; the first partition is fixedly connected to one of the at least two end plates, the second partition is fixedly connected to at least one end plate different from the end of the first partition, and the first partition and the second partition protrude along the inner shell in a direction away from the outer shell respectively.
[0011] Optionally, an input tube through hole and an output tube through hole are spaced apart on any of the outer shells, and an input tube connection hole and an output tube connection hole are provided at corresponding positions on any of the inner shells;
[0012] The input tube passes through the input tube through hole and is inserted and fixedly connected to the input tube connection hole; the output tube passes through the output tube through hole and is inserted and fixedly connected to the output tube connection hole.
[0013] Optionally, the input tube through hole is located near the first partition, and the output tube through hole is located near the second partition.
[0014] Optionally, any of the outer casings or any of the end plates may also be provided with a filling hole, and the filling tube is inserted and fixed into the filling hole.
[0015] Optionally, the connector includes a plurality of magnetic elements, and at least one of the magnetic elements is fixedly mounted on any of the side plates; at least two of the side plates of any one of the clamps are magnetically attracted to at least two of the side plates of any other clamp by means of the magnetic elements.
[0016] Optionally, the magnetic component is a neodymium magnet.
[0017] Optionally, the first partition and the second partition are parallel to each other; and / or the outer shell and the inner shell are parallel to each other.
[0018] Optionally, the first partition and the second partition are respectively annular sector-shaped, and the first partitions of at least two of the clamps are spliced into a ring and the second partitions are spliced into a ring; and / or, the cross-section of the shell is arc-shaped, and the shells of at least two of the clamps are spliced into a cylinder.
[0019] Optionally, the housing, the first partition, the second partition, the filling tube, the input tube, and the output tube are all made of aluminum alloy.
[0020] By implementing this utility model, the following beneficial effects can be achieved:
[0021] This utility model discloses a double-layer ice-blocking device for pipelines, comprising at least two clamps, which together clamp and fix the pipeline to be ice-blocked. Each clamp includes a housing, a first partition, a second partition, a filling pipe for filling with insulating medium, an input pipe for refrigerant input, and an output pipe for refrigerant output. The housing is concave. The first partition is interference-fitted to a first end of the housing and protrudes towards the concave direction. The second partition is interference-fitted to a second end of the housing and protrudes towards the concave direction. The housing, the first partition, and the second partition form a closed insulating cavity, or the housing itself has a closed insulating cavity. The filling pipe is inserted into the housing and communicates with the closed insulating cavity. At least two housings corresponding to at least two clamps are detachably connected by connectors. Simultaneously, an ice-blocking channel for accommodating refrigerant is formed between at least two housings, at least two first partitions, and at least two second partitions. The input pipe and the output pipe are respectively inserted into the housing and communicate with the ice-blocking channel. The entire double-layer ice-blocking device for pipelines is fixedly installed on the pipeline to be ice-blocked by the first and second partitions. The inlet and outlet pipes realize the input and output of refrigerant. The filling pipe is filled with heat insulation medium into the closed heat insulation cavity to isolate the heat exchange between the refrigerant and the outside world, reduce the non-working loss of refrigerant, improve the ice-blocking efficiency and refrigerant utilization rate, shorten the time required for successful ice-blocking, reduce the amount of refrigerant used, and reduce costs. Attached Figure Description
[0022] The present invention will be further described below with reference to the accompanying drawings and embodiments. In the accompanying drawings:
[0023] Figure 1 This is a schematic diagram of the structure of a double-layer ice-blocking device for pipelines according to an embodiment of the present invention;
[0024] Figure 2 yes Figure 1 A schematic diagram of the installation of a double-layer ice-blocking device for pipelines;
[0025] Figure 3 yes Figure 1 A structural diagram of any one of the fixtures in the diagram;
[0026] Figure 4 yes Figure 3 Front view of the housing in the middle;
[0027] Figure 5 yes Figure 3 Rear view of the housing;
[0028] Figure 6 yes Figure 1 The diagram shows the installation of the input tube, where one side plate is not shown;
[0029] Figure 7 yes Figure 1 The diagram shows the installation of the filling tube, where one side plate is not shown.
[0030] Figure 8 yes Figure 1 The diagram shows the installation of the output tube, where one side plate is not shown. Detailed Implementation
[0031] To provide a clearer understanding of the technical features, objectives, and effects of this utility model, the specific embodiments of this utility model will now be described in detail with reference to the accompanying drawings.
[0032] It should be noted that, unless otherwise specified, the embodiments and features described in these embodiments can be combined with each other.
[0033] In the description of this utility model, it should be understood that the terms "center," "longitudinal," "lateral," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," and "outer," etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the accompanying drawings and 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, and therefore should not be construed as a limitation of this utility model. Furthermore, the terms "first," "second," etc., are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first," "second," etc., may explicitly or implicitly include one or more of that feature. In the description of this utility model, unless otherwise stated, "a plurality of" means two or more.
[0034] In the description of this utility model, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "joining" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or a chemical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal communication between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model based on the specific circumstances.
[0035] See Figure 1 and Figure 2One embodiment of this utility model discloses a double-layer ice-blocking device for pipelines, including at least two clamps, which together clamp and fix the pipeline 8 to be ice-blocked. The number of clamps can be determined according to actual needs, such as two, three, or four. When there are two clamps, the two clamps together clamp and fix the pipeline 8 to be ice-blocked. When there are three clamps, the three clamps together clamp and fix the pipeline 8 to be ice-blocked. When there are four clamps, the four clamps together clamp and fix the pipeline 8 to be ice-blocked.
[0036] Each fixture includes a housing 1, a first partition 2, a second partition 3, a filling pipe 4 for filling the insulation medium, an input pipe 5 for refrigerant input, and an output pipe 6 for refrigerant output. The housing 1 is concave. The first partition 2 is interference-fitted to the first end of the housing 1 and protrudes in the concave direction. The second partition 3 is interference-fitted to the second end of the housing 1 and protrudes in the concave direction. The housing 1, the first partition 2, and the second partition 3 form a closed insulation cavity, or the housing 1 itself has a closed insulation cavity. The filling pipe 4 is inserted into the housing 1 and communicates with the closed insulation cavity.
[0037] See you together Figure 3 At least two housings 1 corresponding to at least two clamps are detachably connected by connectors 7. At the same time, an ice-blocking channel for accommodating refrigerant is formed between at least two housings 1, at least two first partitions 2, and at least two second partitions 3. The inlet pipe 5 and the outlet pipe 6 are respectively inserted into the housings 1 and communicate with the ice-blocking channel.
[0038] Specifically, at least two first partitions 2 together clamp the first position of the pipe 8 to be ice-blocked, and at least two second partitions 3 together clamp the second position of the pipe 8 to be ice-blocked. The first partitions 2 and the second partitions 3 are sealed to the pipe 8 to be ice-blocked. A closed ice-blocking channel is formed between at least two housings 1, at least two first partitions 2, at least two second partitions 3, and the pipe 8 to be ice-blocked from the first position to the second position.
[0039] The housing 1 is concave, meaning it is recessed towards the inside to avoid obstructing the pipe 8 to be iced and to provide space for refrigerant. The first partition 2 and the second partition 3 protrude from the outside of the housing 1 and extend along the direction of the pipe 8 to be iced, leaving a gap between the housing 1 and the pipe 8 to be iced, which serves as an ice-blocking channel.
[0040] Specifically, the filling pipe 4 is used to fill the closed insulation cavity with insulation medium, or to output the insulation medium after operation. The input pipe 5 can be connected to an external refrigerant source to input refrigerant into the ice-blocking channel, providing a cold source for the pipe 8 to be ice-blocked, with the refrigerant in direct contact with the pipe 8. The output pipe 6 is used to output the refrigerant after heat exchange. The first partition 2 and the second partition 3 are installed as a whole on the pipe 8 to be ice-blocked, and are also used to limit the refrigerant, forming an ice-blocking channel for accommodating the refrigerant between the first partition 2 and the second partition 3 and the pipe 8 to be ice-blocked. Sealing strips can be provided on the ends of the first partition 2 and the second partition 3 that contact the pipe 8 to prevent refrigerant leakage. The filling pipe 4, the input pipe 5, and the output pipe 6 are respectively sealed to the shell 1 to prevent leakage of insulation medium or refrigerant. Generally, liquid nitrogen can be used as the refrigerant. The output pipe 6 is used to output the refrigerant after heat exchange; liquid nitrogen forms nitrogen gas after heat exchange, that is, the output pipe 6 is used to output nitrogen gas. The insulation medium can be a gas or a liquid. Gases include argon, krypton, xenon, and air, while liquids include liquid helium and water.
[0041] Compared to existing technologies, this invention's double-layer ice-blocking device isolates the ice-blocking channel from the external environment through a sealed, insulated cavity, blocking the heat exchange process between the refrigerant and the external environment. This reduces heat exchange between the refrigerant and the external medium, thereby reducing non-working refrigerant losses, shortening the time required for successful ice blocking, shortening refrigerant usage, improving ice-blocking efficiency, and reducing costs. Furthermore, the device automatically inputs and outputs refrigerant through inlet pipe 5 and outlet pipe 6, reducing manual operation and preventing frostbite. Simultaneous refrigerant delivery through inlet pipe 5 and outlet pipe 6 achieves dynamic balance, eliminating the need to monitor liquid levels. Alternatively, metering devices can be installed at the ends of inlet pipe 5 and outlet pipe 6 for automatic monitoring.
[0042] See you together Figures 3 to 5 In some embodiments, the housing 1 of any clamp includes an outer shell 11, an inner shell 12, and at least two side plates 13. The outer shell 11 and the inner shell 12 are spaced apart from each other, and each side plate 13 is fixedly connected to the side of the outer shell 11 and the inner shell 12, respectively. A first partition 2 is fixedly connected to the first end of the outer shell 11 and the inner shell 12, and a second partition 3 is fixedly connected to the second end of the outer shell 11 and the inner shell 12, respectively. The first partition 2 and the second partition 3 protrude along the inner shell 12 in a direction away from the outer shell 11. At this time, a closed heat-insulating cavity is formed between the housing 1, the first partition 2, and the second partition 3.
[0043] Alternatively, in some other embodiments, the housing 1 of any clamp includes an outer shell 11, an inner shell 12, at least two side plates 13, and at least two end plates. The outer shell 11 and the inner shell 12 are spaced apart from each other. Each end plate is fixedly connected to the end of the outer shell 11 and the inner shell 12, respectively. Each side plate 13 is fixedly connected to the side of the outer shell 11 and the inner shell 12, respectively. A first partition 2 is fixedly connected to one of the at least two end plates, and a second partition 3 is fixedly connected to at least one end plate different from the end of the first partition 2. The first partition 2 and the second partition 3 protrude along the inner shell 12 in a direction away from the outer shell 11. In this case, the housing 1 itself has a closed heat-insulating space. The end plates are not shown.
[0044] For example, when the housing 1 includes two side plates 13 and two end plates, each end plate is fixedly connected to the end of the outer shell 11 and the inner shell 12, respectively, and each side plate 13 is fixedly connected to the side of the outer shell 11 and the inner shell 12, respectively. A first partition 2 is fixedly connected to one of the two end plates, and a second partition 3 is fixedly connected to the other of the two end plates. As another example, when the housing 1 includes three side plates 13, two side plates 13 are arranged adjacent to each other, and can be either a left-right structure or an up-down structure. The first side plate 13 is fixedly connected to the left side of the outer shell 11 and the inner shell 12, respectively, and the second and third side plates 13 are an up-down structure, fixedly connected to the right side of the outer shell 11 and the inner shell 12, respectively. Alternatively, the second and third side plates 13 are a left-right structure, with the second side plate 13 fixedly connected to the right side of one of the outer shell 11 and the inner shell 12, and the third side plate 13 fixedly connected to the right side of the other of the outer shell 11 and the inner shell 12.
[0045] For example, when the housing 1 includes three end plates, two of the end plates are arranged adjacent to each other, which can be a left-right structure or a front-back structure. The first partition 2 is fixedly connected to the first end plate, and the second partition 3 is fixedly connected to one of the second and third end plates, or the second partition 3 is simultaneously connected to the second and third end plates.
[0046] See you together Figures 6 to 8 In some embodiments, an input pipe through hole 14 and an output pipe through hole 15 are spaced apart on any outer shell 11, and an input pipe connection hole 16 and an output pipe connection hole 17 are provided at corresponding positions on any inner shell 12. The input pipe 5 passes through the input pipe through hole 14 and is inserted and fixedly connected to the input pipe connection hole 16, and the output pipe 6 passes through the output pipe through hole 15 and is inserted and fixedly connected to the output pipe connection hole 17. The input pipe connection hole 16 and the output pipe connection hole 17 are respectively connected to the ice blockage channel.
[0047] In some embodiments, the inlet pipe through-hole 14 is disposed near the first partition 2, and the outlet pipe through-hole 15 is disposed near the second partition 3. The relative distance between the inlet pipe through-hole 14 and the outlet pipe through-hole 15 is as far as possible to make full use of the refrigerant. Understandably, in some other embodiments, the inlet pipe through-hole 14 is disposed near the second partition 3, and the outlet pipe through-hole 15 is disposed near the first partition 2, which can achieve the same purpose.
[0048] In some embodiments, any housing 11 or any end plate is further provided with a filling hole 18, and the filling tube 4 is inserted and fixed to the filling hole 18. For example, the filling hole 18 is provided on the housing 11, and can be located in the middle of the housing 11, which can make the filling of the heat insulation medium more uniform. When the filling tube 4 is provided on the end plate, similarly, the partition needs to be provided with a through hole for the filling tube 4 to pass through.
[0049] like Figure 3 and Figure 4 As shown, in some embodiments, the connector 7 includes several magnetic elements, with at least one magnetic element fixedly mounted on any side plate 13. At least two side plates 13 of any clamp are magnetically attracted to at least two side plates 13 of any other clamp via magnetic elements. This allows for quick assembly and disassembly of the double-layer ice-blocking device, saving operating time and improving efficiency. For example, if a magnetic element is mounted on the side plate 13 on the left side of one clamp, a corresponding magnetic element is provided on the side plate 13 on the right side of the mating clamp, and the two magnetic elements magnetically secure the entire double-layer ice-blocking device. To achieve standardized production, the magnetic elements can be symmetrically arranged on the two side plates 13. Understandably, in some other embodiments, when quick assembly and disassembly are not considered, bolts and nuts can be used to fasten the clamps. To strengthen the fixation and facilitate the installation of the magnetic elements, the width of the side plate 13 can be greater than the distance between the outer shell 11 and the inner shell 12 and partially extend beyond the outer side of the outer shell 11.
[0050] In some embodiments, multiple magnetic components are fixedly installed on any side panel 13. This can increase the magnetic attraction and strengthen the fixation. For example, three, four, or five magnetic components are fixedly installed on each side panel 13. The specific number can be set according to actual needs, and this utility model does not impose any limitations.
[0051] In some embodiments, the magnetic component is a neodymium magnet. Neodymium magnets can generate extremely strong magnetic fields, which meet the fixation requirements of the entire double-layer ice-blocking device. Understandably, in other embodiments, magnets made of other materials, such as samarium cobalt magnets, can also be used, as long as the magnetic attraction force is sufficient to fix the entire double-layer ice-blocking device to the pipe 8 to be ice-blocked.
[0052] In some embodiments, the first partition 2 and the second partition 3 are parallel to each other, and / or the outer shell 11 and the inner shell 12 are parallel to each other. The parallelism of the first partition 2 and the second partition 3 facilitates stable installation on the double-layer ice-blocking device and helps maintain sealing. The parallelism of the outer shell 11 and the inner shell 12 maintains a constant relative distance between any positions of the outer shell 11 and the inner shell 12, thus maintaining uniformity in thermal insulation performance.
[0053] In some embodiments, the first partition 2 and the second partition 3 are each annular sector-shaped, and the first partition 2 of at least two clamps is spliced into a ring and the second partition 3 is spliced into a ring. And / or, the cross-section of the shell 1 is arc-shaped, and the shell 1 of at least two clamps is spliced into a cylinder. The first partition 2 and the second partition 3 are annular sector-shaped, which can adapt to the shape of the pipe 8 to be ice-blocked, closely adhering to the pipe 8 to be ice-blocked, improving fixation and sealing. An annular sector refers to a ring-shaped portion formed by two radii and two concentric circular arcs. The cross-section of the shell 1 is arc-shaped, that is, the cross-section of the outer shell 11 is arc-shaped, and the cross-section of the inner shell 12 is arc-shaped, thereby forming a closed heat-insulating space with an arc-shaped cross-section, adapting to the shape of the pipe 8 to be ice-blocked, and forming a consistent heat-insulating space at any position outside the pipe 8 to be ice-blocked. For example, when the number of clamps is two, the first partition 2 and the second partition 3 can each be a semi-circular ring. Meanwhile, the cross-section of the outer shell 11 is a semi-circular ring, the cross-section of the inner shell 12 is a semi-circular ring, and the cross-section of the heat insulation space is a semi-circular ring. Correspondingly, the shape of the end plate matches the shape of the inner shell 12 and the outer shell 11, and is also arc-shaped.
[0054] In some embodiments, the housing 1, partition, filling pipe 4, inlet pipe 5, and outlet pipe 6 are all made of aluminum alloy. This makes the double-layer ice-blocking device lightweight, easy to transport and install, and provides excellent thermal conductivity, improving heat exchange efficiency.
[0055] Understandably, this utility model's double-layer ice-blocking device can be applied not only to ice-blocking pipes but also to other structural components requiring ice blocking. During relocation, the shapes of the first partition 2, the second partition 3, and the shell 1 are adaptively altered to change the shape of the sealed insulation cavity and the ice-blocking channel. This clamps the structural component to be ice-blocked while ensuring that the first partition 2 and the second partition 3 are as close as possible to the outer surface of the component to prevent leakage, allowing subsequent ice-blocking operations to proceed.
[0056] By implementing this utility model, the following beneficial effects can be achieved:
[0057] This utility model discloses a double-layer ice-blocking device for pipelines. The entire double-layer ice-blocking device is fixedly installed on the pipeline 8 to be ice-blocked through the first partition 2 and the second partition 3. The input pipe 5 and the output pipe 6 realize the input and output of refrigerant. The filling pipe 4 is filled with heat insulation medium into the closed heat insulation cavity to isolate the heat exchange between the refrigerant and the outside world, reduce the non-working loss of refrigerant, improve the ice-blocking efficiency and refrigerant utilization rate, shorten the time required for successful ice-blocking and the amount of refrigerant used, and reduce costs.
[0058] It is understood that the above embodiments only illustrate preferred embodiments of the present utility model, and their descriptions are relatively specific and detailed, but they should not be construed as limiting the scope of the present utility model patent. It should be noted that for those skilled in the art, without departing from the concept of the present utility model, the above embodiments or technical features can be freely combined, and several modifications and improvements can be made. These all fall within the protection scope of the present utility model, that is, the embodiments described "in some embodiments" can be freely combined with any of the embodiments above and below. Therefore, all equivalent transformations and modifications made within the scope of the claims of the present utility model should fall within the coverage of the claims of the present utility model.
Claims
1. A double-layer ice-blocking device for pipelines, characterized in that, Includes at least two clamps, and the at least two clamps together hold and fix the pipe to be blocked by ice (8); Each of the aforementioned fixtures includes a housing (1), a first partition (2), a second partition (3), a filling pipe (4) for filling the heat insulation medium, an input pipe (5) for inputting refrigerant, and an output pipe (6) for outputting refrigerant. The housing (1) is concave. The first partition (2) is interference-fitted to the first end of the housing (1) and protrudes in the concave direction. The second partition (3) is interference-fitted to the second end of the housing (1) and protrudes in the concave direction. The housing (1), the first partition (2), and the second partition (3) form a closed heat insulation cavity, or the housing (1) itself has a closed heat insulation cavity. The filling pipe (4) is inserted into the housing (1) and communicates with the closed heat insulation cavity. At least two housings (1) corresponding to at least two of the clamps are detachably connected by connectors (7). At the same time, an ice blockage channel for accommodating refrigerant is formed between at least two housings (1), at least two first partitions (2) and at least two second partitions (3). The input pipe (5) and the output pipe (6) are respectively inserted into the housings (1) and communicate with the ice blockage channel.
2. The double-layer ice-blocking device for pipelines according to claim 1, characterized in that, The housing (1) of any of the clamps includes an outer shell (11), an inner shell (12), and at least two side plates (13). The outer shell (11) and the inner shell (12) are arranged at intervals relative to each other. Each side plate (13) is fixedly connected to the side of the outer shell (11) and the inner shell (12). The first partition (2) is fixedly connected to the first end of the outer shell (11) and the inner shell (12), and the second partition (3) is fixedly connected to the second end of the outer shell (11) and the inner shell (12), and the first partition (2) and the second partition (3) protrude from the inner shell (12) in a direction away from the outer shell (11). Alternatively, the housing (1) of any of the clamps includes an outer shell (11), an inner shell (12), at least two side plates (13), and at least two end plates. The outer shell (11) and the inner shell (12) are spaced apart from each other. Each end plate is fixedly connected to the end of the outer shell (11) and the inner shell (12), and each side plate (13) is fixedly connected to the side of the outer shell (11) and the inner shell (12). The first partition (2) is fixedly connected to one of the at least two end plates, and the second partition (3) is fixedly connected to at least one end plate that is different from the end of the first partition (2). The first partition (2) and the second partition (3) protrude along the inner shell (12) in a direction away from the outer shell (11).
3. The double-layer ice-blocking device for pipelines according to claim 2, characterized in that, An input tube through hole (14) and an output tube through hole (15) are spaced apart on any of the outer shells (11), and an input tube connection hole (16) and an output tube connection hole (17) are provided at corresponding positions on any of the inner shells (12); The input tube (5) passes through the input tube through hole (14) and is inserted and fixed with the input tube connection hole (16). The output tube (6) passes through the output tube through hole (15) and is inserted and fixed with the output tube connection hole (17).
4. The double-layer ice-blocking device for pipelines according to claim 3, characterized in that, The input tube through hole (14) is located near the first partition (2), and the output tube through hole (15) is located near the second partition (3).
5. The double-layer ice-blocking device for pipelines according to claim 2, characterized in that, Each of the outer casings (11) or end plates is further provided with a filling hole (18), and the filling tube (4) is inserted and fixed to the filling hole (18).
6. The double-layer ice-blocking device for pipelines according to claim 2, characterized in that, The connector (7) includes a plurality of magnetic components, and at least one of the magnetic components is fixedly installed on any of the side plates (13); at least two of the side plates (13) of any one of the clamps are magnetically attracted and fixed to at least two of the side plates (13) of any other clamp by the magnetic components.
7. The double-layer ice-blocking device for pipelines according to claim 6, characterized in that, The magnetic component is a neodymium magnet.
8. The double-layer ice-blocking device for pipelines according to any one of claims 2-7, characterized in that, The first partition (2) and the second partition (3) are parallel to each other; and / or the outer shell (11) and the inner shell (12) are parallel to each other.
9. The double-layer ice-blocking device for pipelines according to any one of claims 1-7, characterized in that, The first partition (2) and the second partition (3) are respectively annular sector-shaped, and the first partition (2) of at least two of the clamps are spliced into a ring and the second partition (3) is spliced into a ring; and / or, the cross-section of the housing (1) is arc-shaped, and the housing (1) of at least two of the clamps is spliced into a cylinder.
10. The double-layer ice-blocking device for pipelines according to any one of claims 1-7, characterized in that, The housing (1), the first partition (2), the second partition (3), the filling pipe (4), the input pipe (5), and the output pipe (6) are all made of aluminum alloy.