Quick connecting device for steel-in-steel steam thermal insulation pipe
By designing a quick connection device for steel-covered steel steam insulation pipes, a fast, safe and well-sealed connection is achieved using spring snap assembly and threaded connections, the problem of insufficient insulation performance, strength and sealing at the connections in the prior art is solved, and construction efficiency and safety are improved.
Patent Information
- Application Number
- CN202421666196.3
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-07-15
- Publication Date
- 2025-06-13
- Estimated Expiration
- 2034-07-15
AI Technical Summary
The existing insulation pipe connection technology is difficult to ensure good insulation performance, strength and sealing at the connection, especially when high temperature, high pressure or flammable and explosive media are transported, and the construction efficiency is low.
A steel-covered steel steam insulation pipe quick connection device is designed, adopting three spring snapping components, a first protective layer, a second protective layer, a first threaded connection pipe, a second threaded connection pipe and a seal. Quick connection and seal are achieved through coaxial fit and threaded connection of the spring snapping components.
It realizes fast, safe and well-sealed insulation pipe connections, reduces construction time and cost, and effectively prevents heat loss and medium leakage.
Smart Images
Figure CN222977645U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of pipeline connection, in particular to a quick connection device for a steel-sheathed steel steam heat preservation pipe. Background Art
[0002] The background of the heat preservation pipe connection technology mainly stems from the comprehensive requirements for the heat preservation performance, safety and reliability, and construction efficiency of the pipeline system. With the rapid development of industries, construction, energy and other fields, the requirements for pipeline systems are also increasing day by day. Especially in cold regions or occasions where high-temperature or low-temperature media need to be transported over long distances, the application of heat preservation pipes becomes particularly important.
[0003] The core function of the heat preservation pipe is to reduce heat loss. Therefore, the connection technology must ensure good heat preservation performance at the connection, and avoid becoming a weak link for heat dissipation. This requires that the connection materials, connection methods, and sealing technologies all meet certain standards. Heat preservation pipes are usually used to transport various media, including hot water, steam, petroleum, natural gas, etc. These media may have characteristics such as high temperature, high pressure, flammable, explosive, etc. Therefore, the connection technology must ensure the strength and sealing performance at the connection, prevent medium leakage, and ensure the safe operation of the pipeline system. In large-scale engineering projects, the installation and connection workload of heat preservation pipes is huge. Therefore, the connection technology needs to be simple, easy to operate, fast and efficient, so as to shorten the construction period and reduce the construction cost.
[0004] In view of this, this application proposes a quick connection device for a steel-sheathed steel steam heat preservation pipe. Content of the Utility Model
[0005] Based on this, it is necessary to provide a quick connection device for a steel-sheathed steel steam heat preservation pipe aiming at the above problems.
[0006] The utility model is realized through the following technical solutions: A quick connection device for a steel-sheathed steel steam heat preservation pipe, which is used to connect two heat preservation pipes with the same specifications. It includes three spring buckle assemblies, a first protective layer, a second protective layer, and may also include a first threaded connection pipe, a second threaded connection pipe, and a sealing member.
[0007] The first protective layer is coaxially and rotatably connected to the first threaded connection pipe, and the second protective layer is coaxially and fixedly connected to the second threaded connection pipe. The three spring buckle assemblies are circumferentially arrayed on the outer surface of the first protective layer. The spring buckle assembly includes a spring, a buckle, and an "L"-shaped connecting arm. One end of the "L"-shaped connecting arm is fixedly connected to the first protective layer, and the other end is provided with a chute. One end of the buckle is slidably connected to the chute. The spring is located in the chute, one end is fixedly connected to the buckle, and the other end is fixedly connected to the inner wall of the "L"-shaped connecting arm. The second protective layer is provided with three card slots. When the three buckles are respectively clamped in the three card slots, the first protective layer and the second protective layer are coaxially fitted.
[0008] Furthermore, one end of each of the first threaded connecting pipe and the second threaded connecting pipe has a thread for screwing with the heat-insulating pipes on both sides. The other end of the first threaded connecting pipe is coaxially and rotatably connected to the first protective layer, and the other end of the second threaded connecting pipe is coaxially and fixedly connected to the second protective layer.
[0009] Furthermore, the first protective layer includes a first heat-insulating material layer, a first heat-insulating layer outer shell, and a sealed bearing. The outer side of the sealed bearing is coaxially and fixedly connected to the first heat-insulating layer outer shell. The first heat-insulating material layer is installed inside the first heat-insulating layer outer shell.
[0010] Furthermore, the second protective layer includes a second heat-insulating material layer and a second heat-insulating layer outer shell. The second heat-insulating material layer is installed inside the second heat-insulating layer outer shell. The second heat-insulating layer outer shell is coaxially arranged on the outer side of one end of the second threaded connecting pipe and fixedly connected.
[0011] Furthermore, the second protective layer further includes three groups of auxiliary cards, with two cards in each group. The auxiliary cards are circumferentially arrayed on the outer surface of the second protective layer and distributed on both sides of each card slot.
[0012] Furthermore, a sealing groove is provided on the surface of one end of the first threaded connecting pipe at the connection. The seal is installed in the sealing groove.
[0013] Furthermore, the seal is in an "O" shape. The seal is made of rubber material.
[0014] Compared with the prior art, the present utility model has the following beneficial effects:
[0015] 1. When the first protective layer and the second protective layer are coaxially fitted together, the buckle first contacts the slope surface of the second protective layer. As the buckle moves on the slope surface, the buckle compresses the spring located in the chute and moves telescopically in the chute. When the first protective layer and the second protective layer are coaxially fitted, rotate the first protective layer to make the buckle of the spring buckle assembly enter the card slot on the second protective layer, so as to fix the first protective layer and the second protective layer together.
[0016] 2. The first threaded pipe and the second threaded pipe are respectively screwed to the two heat-insulating pipes with the threaded ends, and the first protective layer and the second protective layer at the other ends are coaxially fitted and fixed to achieve the rapid connection of the two heat-insulating pipes.
[0017] 3. The first heat-insulating material layer is installed inside the first heat-insulating layer outer shell for heat insulation to prevent excessive heat loss from the connecting device. The sealed bearing is coaxially and fixedly connected to the first heat-insulating layer outer shell to realize the rotational connection between the first protective layer and the first threaded connecting pipe, so that the first protective layer drives the spring buckle assembly to rotate, and the buckle enters the card slot on the second protective layer, realizing the coaxial fitting and fixing of the first protective layer and the second protective layer.
[0018] 4. The second thermal insulation material layer is installed inside the second protective layer housing for heat preservation to prevent excessive heat loss from the connecting device. The second thermal insulation layer housing is coaxially arranged outside one end of the second threaded connecting pipe and fixedly connected, enabling the fixed connection between the second protective layer and the second threaded connecting pipe.
[0019] 5. When the first protective layer and the second protective layer are coaxially fitted, the auxiliary card is used to assist the expansion and contraction of the buckle and move the direction on the slope of the second protective layer, enabling the buckle to enter the card slot more quickly.
[0020] 6. When the first protective layer and the second protective layer are fitted, one end of the first threaded connecting pipe and one end of the second threaded connecting pipe will also be fitted, and the seal prevents the conveyed substance from leaking at the joint between the first threaded connecting pipe and the second threaded connecting pipe.
[0021] 7. The seal is in an "O" shape and has the same shape as the pipe wall of the connecting pipe, making the fit between the first threaded connecting pipe and the second threaded connecting pipe tighter. The rubber material has the property of resisting high temperature, preventing the conveyed substance from having too high a temperature and causing the seal to lose its function. Description of the Drawings
[0022] Figure 1 It is a three-dimensional structural schematic diagram of the quick connection device for the steel-sheathed steam heat preservation pipe in Embodiment 1 of the present utility model;
[0023] Figure 2 It is Figure 1 a partial three-dimensional structural schematic diagram of the quick connection device in
[0024] Figure 3 It is Figure 1 another partial three-dimensional structural schematic diagram of the quick connection device in
[0025] Figure 4 It is Figure 1 a three-dimensional structural schematic diagram of the spring buckle assembly in
[0026] Figure 5 It is Figure 4 the cross-sectional structural schematic diagram of the spring buckle assembly in
[0027] Figure 6 It is Figure 2 a partial front cross-sectional schematic diagram of the quick connection device in
[0028] Figure 7 It is Figure 3 another partial front cross-sectional schematic diagram of the quick connection device in
[0029] Description of the Main Component Symbols
[0030] The reference numerals in the figure are: 1, card slot; 2, auxiliary card; 3, second threaded connection pipe; 4, second thermal insulation layer housing; 5, second thermal insulation material layer; 6, "L"-shaped connecting arm; 7, buckle; 8, spring; 9, first protective layer housing; 10, sealed bearing; 11, first threaded connection pipe; 12, second thermal insulation material layer; 13, seal; 14.
[0031] The above description of the main component symbols further elaborates on the present utility model in conjunction with the accompanying drawings and specific embodiments. Specific embodiments
[0032] Next, the technical solutions in the embodiments of the present utility model will be clearly and completely described in conjunction with the accompanying drawings in the embodiments of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all of the embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present utility model.
[0033] It should be noted that when a component is referred to as being "installed on" another component, it can be directly on the other component or there may also be an intermediate component. When a component is considered to be "disposed on" another component, it can be directly disposed on the other component or there may be an intermediate component at the same time. When a component is considered to be "fixed to" another component, it can be directly fixed to the other component or there may be an intermediate component at the same time.
[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present utility model belongs. The terms used in the description of the present utility model in this specification are only for the purpose of describing specific embodiments and are not intended to limit the present utility model. The term "or / and" used herein includes any and all combinations of one or more of the related listed items.
[0035] Embodiment 1: Please refer to Figures 1-7 , this embodiment provides a quick connection device for a steel-sheathed steel steam insulation pipe, including three spring buckle assemblies, a first protective layer, a second protective layer, and may also include a first threaded connection pipe 11, a second threaded connection pipe 3, and a seal 13.
[0036] The first protective layer is coaxially and rotatably connected to the first threaded connecting pipe 11, and the second protective layer is coaxially and fixedly connected to the second threaded connecting pipe 3. Three spring buckle assemblies are circumferentially arrayed on the outer surface of the first protective layer. The spring buckle assembly includes a spring 8, a buckle 7, and an "L"-shaped connecting arm 6. One end of the "L"-shaped connecting arm 6 is fixedly connected to the first protective layer, and a chute is provided at the other end. One end of the buckle 7 is slidably connected to the chute. The spring 8 is located in the chute, one end is fixedly connected to the buckle 7, and the other end is fixedly connected to the inner wall of the "L"-shaped connecting arm 6. Three card slots 1 are provided on the second protective layer. When the three buckles 7 are respectively engaged in the three card slots 1, the first protective layer and the second protective layer are coaxially fitted. When the first protective layer and the second protective layer are coaxially fitted, the buckle 7 first contacts the slope of the second protective layer. As the buckle 7 moves on the slope, the buckle 7 compresses the spring 8 located in the chute to perform telescopic movement in the chute. When the first protective layer and the second protective layer are coaxially fitted, rotate the first protective layer to make the buckle 7 of the spring buckle assembly located in the card slot 1 of the second protective layer, so that the first protective layer and the second protective layer are fixed together.
[0037] One end of both the first threaded connecting pipe 11 and the second threaded connecting pipe 3 has thread lines for screwing with the insulating pipes on both sides. The other end of the first threaded connecting pipe 11 is coaxially and rotatably connected to the first protective layer, and the other end of the second threaded connecting pipe 3 is coaxially and fixedly connected to the second protective layer. The first threaded pipe 11 and the second threaded pipe 3 respectively use the threaded ends to screw with the two insulating pipes, and the first protective layer and the second protective layer at the other ends are coaxially fitted and fixed to achieve the quick connection of the two insulating pipes.
[0038] The first protective layer includes a first thermal insulation material layer 12, an outer shell 9 of the first thermal insulation layer, and a sealed bearing 10. The outer side of the sealed bearing 10 is fixedly connected to the outer shell 9 of the first thermal insulation layer coaxially. The first thermal insulation material layer 12 is installed inside the outer shell 9 of the first thermal insulation layer. The first thermal insulation material layer 12 is installed inside the outer shell 9 of the first thermal insulation layer for heat preservation to prevent excessive heat loss from the connecting device. The coaxial fixed connection between the sealed bearing 10 and the outer shell 9 of the first thermal insulation layer is used to realize the rotational connection between the first protective layer and the first threaded connection pipe 11, so that the first protective layer drives the spring buckle assembly to rotate, making the buckle 7 enter the card slot 1 on the second protective layer, realizing the coaxial fitting and fixation between the first protective layer and the second protective layer. The first thermal insulation material layer 12 is composed of a silicate aluminum thermal insulation material layer and a polyurethane thermal insulation material layer. Polyurethane thermal insulation material: Polyurethane foam has the advantages of high density, large compressive strength, low thermal conductivity, low moisture permeability coefficient, low water absorption rate, etc. It has good hydrolysis resistance stability, anti-aging property, and chemical resistance to acids and alkalis and other chemicals. It is not easy to burn, and its flame retardancy meets the national safety requirements. Silicate aluminum thermal insulation material: This is a new type of environmental protection wall thermal insulation material that meets national building standards. It is mainly made of natural fibers and added with a certain amount of inorganic auxiliary materials through composite processing. It has a high-strength structure and good thermal insulation and heat insulation performance.
[0039] The second protective layer includes a second thermal insulation material layer 5 and an outer shell 2 of the second thermal insulation layer. The second thermal insulation material layer 5 is installed inside the second outer shell 2. The outer shell 2 of the second thermal insulation layer is coaxially arranged and fixedly connected to the outer side of one end of the second threaded connection pipe 3. The second thermal insulation material layer 5 is installed inside the outer shell 2 of the second protective layer for heat preservation to prevent excessive heat loss from the connecting device. The outer shell 2 of the second thermal insulation layer is coaxially arranged and fixedly connected to the outer side of one end of the second threaded connection pipe 3, enabling the fixed connection between the second protective layer and the second threaded connection pipe 3. The material composition of the second thermal insulation material layer 5 is the same as that of the first thermal insulation material layer 12, both composed of a silicate aluminum thermal insulation material layer and a polyurethane thermal insulation material layer.
[0040] The second protective layer also includes three groups of auxiliary cards, with two cards in each group. The auxiliary cards 2 are circumferentially arrayed on the outer surface of the second protective layer and distributed on both sides of each card slot 1. When the first protective layer and the second protective layer are coaxially fitted, the auxiliary cards 2 are used to assist the expansion and contraction of the buckle 7 to move in the slope direction of the second protective layer, enabling the buckle 7 to enter the card slot more quickly.
[0041] A sealing groove is provided on the surface of one end of the connection of the first threaded connection pipe 11. The seal 13 is installed in the sealing groove. When the first protective layer and the second protective layer are fitted, one end of the first threaded connection pipe 11 will also be fitted with one end of the second threaded connection pipe 3, and the seal 13 prevents the transported substance from leaking from the fitting of the first threaded connection pipe 11 and the second threaded connection pipe 3.
[0042] The seal 13 is in an "O" shape. The seal 13 is made of rubber material. The "O" shape of the seal 13 is the same as the shape of the pipe wall of the connecting pipe, making the first threaded connecting pipe 11 and the second threaded connecting pipe 3 fit more tightly when they are joined. The rubber material has the property of high temperature resistance, preventing the temperature of the transported substance from being too high and causing the seal 13 to lose its function.
[0043] Working principle: It is used to quickly connect two steel-sheathed steam heat-insulating pipes. The threaded ends of the first threaded connecting pipe 11 and the second threaded connecting pipe 3 are respectively screwed to the two steel-sheathed steam heat-insulating pipes. The first protective layer at the other end of the first threaded connecting pipe 11 is coaxially fitted with the second protective layer at the other end of the second threaded connecting pipe 3. The buckle 7 on the spring snap assembly first contacts the slope of the second protective layer and moves on the slope with the assistance of the auxiliary card 2 and compresses the spring 8 to expand and contract in the chute of the "L" connecting arm 6, so that the buckle 7 enters the card slot 1 located in the second protective layer, realizing the fitting and fixing of the first protective layer and the second protective layer. When the first protective layer and the second protective layer are fitted and fixed, one end of the first threaded connecting pipe 11 and one end of the second threaded connecting pipe 3 also achieve coaxial fitting, and achieve tight fitting under the action of the seal 13. Generally speaking, the steel-sheathed steam heat-insulating pipe quick-connection device of this embodiment has the functions of flexible, convenient and quick connection, and the connection part has good sealing performance.
[0044] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope recorded in this specification.
[0045] The above-described embodiments only express several implementation manners of the present invention, and the description is relatively specific and detailed, but it cannot be understood as a limitation on the scope of the utility model patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present invention, several deformations and improvements can still be made, and these all belong to the protection scope of the present invention. Therefore, the protection scope of the utility model patent should be subject to the appended claims.
Claims
1. A steel jacketed steel steam insulated pipe quick connection device, used to connect two insulated pipes of the same specifications; characterized in that: It includes: Three spring buckle assemblies, a first protective layer, and a second protective layer; the first protective layer is coaxially rotatably connected to a first threaded connecting pipe (11); The second protective layer is coaxially fixedly connected to the second threaded connecting tube (3); three spring buckle assemblies are arranged in a circumferential array on the outer surface of the first protective layer; the spring buckle assembly comprises a spring (8), a buckle (7), and an "L"-shaped connecting arm (6); one end of the "L"-shaped connecting arm (6) is fixedly connected to the first protective layer, and the other end is provided with a slide groove; one end of the buckle (7) is slidably connected to the slide groove; the spring (8) is located in the slide groove, one end is fixedly connected to the buckle (7), and the other end is fixedly connected to the inner wall of the "L"-shaped connecting arm (6); the second protective layer is provided with three slots (1), and when the three buckles (7) are respectively engaged in the three slots (1), the first protective layer and the second protective layer are coaxially fitted.
2. A steel jacketed steel steam insulation pipe quick connection device according to claim 1, characterized in that: It also comprises a first threaded connection pipe (11) and a second threaded connection pipe (3), wherein one end of each of the first threaded connection pipe (11) and the second threaded connection pipe (3) has a thread line for being threadedly connected to the insulation pipes on both sides, the other end of the first threaded connection pipe (11) is coaxially rotatably connected to the first protective layer, and the other end of the second threaded connection pipe (3) is coaxially fixedly connected to the second protective layer.
3. A steel jacketed steel steam insulation pipe quick connection device according to claim 1, characterized in that: The first protective layer comprises a first thermal insulation material layer (12), a first thermal insulation layer shell (9), and a sealed bearing (10); the outer side of the sealed bearing (10) is coaxially fixedly connected to the first thermal insulation layer shell (9); and the first thermal insulation material layer (12) is installed inside the first thermal insulation layer shell (9).
4. A steel jacketed steel steam insulation pipe quick connection device according to claim 1, characterized in that: It also includes a second protective layer, including a second thermal insulation material layer (5) and a second thermal insulation layer outer shell (4); the second thermal insulation material layer (5) is installed inside the second thermal insulation layer outer shell (4); the second thermal insulation layer outer shell (4) is coaxially arranged on the outside of one end of the second threaded connecting pipe (3) and fixedly connected.
5. The steel jacketed steel steam insulation pipe quick connection device according to claim 1, characterized in that: The second protective layer also includes three groups of auxiliary cards, each group of auxiliary cards contains two auxiliary cards; the auxiliary cards (2) are arranged in a circular array on the outer surface of the second protective layer and distributed on both sides of each card slot (1).
6. A steel jacketed steel steam insulation pipe quick connection device according to claim 1, characterized in that: It also comprises a sealing member (13); a sealing groove is provided on the surface of one end of the connection portion of the first threaded connecting pipe (11); and the sealing member (13) is installed in the sealing groove.
7. A steel jacketed steel steam insulation pipe quick connection device according to claim 6, characterized in that: The sealing member (13) is in an "O" shape; the sealing member (13) is made of rubber material.