Quick installation joint for direct-buried heat-preservation pipeline

Abstract

The utility model relates to direct -buried type heat preservation pipeline technical field especially direct -buried type heat preservation pipeline quick mounting joint, including pipeline body, connecting plate and protection subassembly, one end of pipeline body is provided with connecting plate, the edge department of connecting plate's outside is close to the pipeline body and is provided with first bevel, the bottom of pipeline body's outside is provided with lower inner shell, the top of pipeline body's outside is provided with upper inner shell, the inside of upper inner shell and lower inner shell is provided with second bevel, the utility model discloses in the installation process of pipeline body, first the connecting plate of a group of pipeline body is placed into the top of lower inner shell, then another group of pipeline body hoist and place into the pit, and guarantee that the connecting plate of this group of pipeline body is also in the scope of lower inner shell top, can, then cover upper inner shell and use bolt and gradually tighten upper inner shell and lower inner shell, and two groups of pipeline body will gradually approach and concentrically complete butt joint under the action of first bevel and second bevel, reduce the time waste of butt joint.

Description

Technical Field

[0001] This utility model relates to the field of direct-buried insulated pipe technology, and in particular to a quick-installation connector for direct-buried insulated pipes. Background Technology

[0002] Direct-buried insulated pipelines are a type of pipeline system used to transport high-temperature or low-temperature media. They have advantages such as heat preservation, corrosion prevention, and energy saving, and are widely used in urban heating, refrigeration, chemical and other fields. The general structure can be divided into the innermost working pipe for transporting liquids, the middle insulation layer for heat preservation, and the outermost protective layer for corrosion and water protection.

[0003] Direct-buried insulated pipes are mostly used for underground pipeline laying. When using them, it is necessary to dig a pit to bury the direct-buried insulated pipes. During the laying process, because the direct-buried insulated pipes are heavy and large in volume, cranes are often used to lift the pipes into the pre-dug foundation pit. Then, operators perform positioning, docking, and fixing work to connect all the pipes into one unit.

[0004] Because the foundation pit is uneven, even crane transportation cannot guarantee that the two pipes are at the same height and remain concentric. The gap between the two pipes is also relatively large, which means that it often takes a long time for operators to connect the two pipes, which is time-consuming and labor-intensive. Utility Model Content

[0005] To overcome the unevenness in most foundation pits, crane transportation cannot guarantee that two pipes are at the same height and remain concentric, and the gap between the two pipes is also relatively large, which often requires operators to spend a long time to connect the two pipes, making it time-consuming and labor-intensive.

[0006] The technical solution of this utility model is as follows: a quick-installation connector for direct-buried insulated pipes, comprising a pipe body, a connecting plate, and a protective component. A thick insulation layer is provided on the outer side of the pipe body. A connecting plate is provided at one end of the pipe body. A first inclined edge is provided on the outer side of the connecting plate near the edge of the pipe body. A lower inner shell is provided at the bottom of the outer side of the pipe body. An upper inner shell is provided on the upper side of the outer side of the pipe body. The upper inner shell and the lower inner shell are connected and fixed with bolts. A second inclined edge is provided on the inner side of the upper inner shell and the lower inner shell. A protective component is provided on the outer side of the lower inner shell and the upper inner shell.

[0007] Preferably, the second inclined side has the same inclination direction and angle as the first inclined side, and the second inclined side reaches its maximum diameter at the midpoint between the upper inner shell and the lower inner shell.

[0008] Preferably, the protective assembly includes an upper outer shell and a lower outer shell, with the upper outer shell disposed above the upper inner shell and the lower outer shell disposed below the lower inner shell.

[0009] Preferably, the upper and lower outer shells are fixed together with bolts, and the cross-section of the upper and lower outer shells after being spliced ​​and fixed is circular, and the diameter of the circle is smaller than the diameter of the insulation layer of the pipe body.

[0010] Preferably, after installation, the upper outer shell and the lower outer shell together enclose the upper inner shell and the lower inner shell together, and a clearance groove is provided at the connection between the upper outer shell and the lower outer shell and the upper inner shell or the lower inner shell.

[0011] Preferably, the upper and lower outer shells are provided with cavities, which are filled with insulation material of the same material as the insulation layer of the pipe body.

[0012] Preferably, an exhaust port and an injection port are provided on the upper part of the inner shell, with the height of the injection port being lower than the height of the exhaust port.

[0013] The beneficial effects of this utility model are:

[0014] The pipe body is clamped by setting up an upper inner shell and a lower inner shell. During the installation of the pipe body, the connecting plate of one set of pipe bodies is first placed above the lower inner shell. Then, the other set of pipe bodies is hoisted into the foundation pit, ensuring that the connecting plate of the other set of pipe bodies is also within the range above the lower inner shell. After that, the upper inner shell is covered and the upper and lower inner shells are gradually tightened with bolts. Under the action of the first and second inclined sides, the two sets of pipe bodies will gradually approach and complete the docking concentrically, greatly reducing the time wasted during pipe docking. The protective components isolate the upper and lower inner shells from the soil, preventing the upper inner shell, lower inner shell and connecting parts from being corroded and causing the pipes to separate. Attached Figure Description

[0015] Figure 1 The diagram shown is a three-dimensional structural schematic of this utility model;

[0016] Figure 2 The diagram shown is an exploded three-dimensional structural schematic of this utility model;

[0017] Figure 3 The diagram shown is a three-dimensional structural schematic of the protective component of this utility model.

[0018] Figure 4 The diagram shown is a schematic representation of the planar structure of this utility model before docking is completed.

[0019] Figure 5 The diagram shown is a planar structural schematic of the present invention after docking is completed.

[0020] Explanation of reference numerals in the attached drawings: 1. Pipe body; 101. Connecting plate; 102. First inclined side; 201. Upper inner shell; 202. Lower inner shell; 203. Injection hole; 204. Vent hole; 205. Second inclined side; 301. Upper outer shell; 302. Lower outer shell; 303. Cavity; 304. Clearance groove. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and embodiments.

[0022] Please see Figures 1-5 This utility model provides an embodiment of a quick-installation connector for a direct-buried insulated pipe, comprising a pipe body 1, a connecting plate 101, and a protective component. A thick insulation layer is provided on the outer side of the pipe body 1. A connecting plate 101 is provided at one end of the pipe body 1. A first inclined edge 102 is provided on the outer side of the connecting plate 101 near the edge of the pipe body 1. A lower inner shell 202 is provided at the bottom of the outer side of the pipe body 1, and an upper inner shell 201 is provided above the outer side of the pipe body 1. The upper inner shell 201 and the lower inner shell 202 are connected and fixed with bolts. A second inclined edge 205 is provided on the inner side of both the upper and lower inner shells 201. A protective component is provided on the outer side of both the lower and upper inner shells 202. The upper and lower inner shells 201 are connected by the protective component. The pipe body 1 is clamped. During the installation of the pipe body 1, the connecting plate 101 of one set of pipe bodies 1 is first placed above the lower inner shell 202. Then, another set of pipe bodies 1 is hoisted and placed into the foundation pit, ensuring that the connecting plate 101 of this set of pipe bodies 1 is also within the range above the lower inner shell 202. After that, the upper inner shell 201 is covered and the upper inner shell 201 and the lower inner shell 202 are gradually tightened with bolts. Under the action of the first inclined side 102 and the second inclined side 205, the two sets of pipe bodies 1 will gradually approach each other and complete the docking concentrically, greatly reducing the time wasted during pipe docking. The protective component isolates the upper inner shell 201 and the lower inner shell 202 from the soil, preventing the upper inner shell 201, the lower inner shell 202 and the connecting parts from being corroded and causing the pipes to separate.

[0023] Please see Figures 1-2 In this embodiment, the protective component includes an upper outer shell 301 and a lower outer shell 302. The upper outer shell 301 is disposed above the upper inner shell 201, and the lower outer shell 302 is disposed below the lower inner shell 202. The upper outer shell 301 and the lower outer shell 302 are fixed together with bolts. After the upper outer shell 301 and the lower outer shell 302 are spliced ​​and fixed, the cross-section is circular, and the diameter of the circle formed is smaller than the diameter of the insulation layer of the pipe body 1. The circle formed by the upper outer shell 301 and the lower outer shell 302, which is smaller than the diameter of the insulation layer of the pipe body 1, allows operators to use common connection methods such as heat shrink tape to enhance the insulation and corrosion resistance of the joint.

[0024] Please see Figure 3 In this embodiment, after installation, the upper outer shell 301 and the lower outer shell 302 together enclose the upper inner shell 201 and the lower inner shell 202 together. A clearance groove 304 is provided at the connection between the upper outer shell 301 and the lower outer shell 302 and the upper inner shell 201 or the lower inner shell 202. A cavity 303 is provided inside the upper outer shell 301 and the lower outer shell 302, and the cavity 303 is filled with insulation material of the same material as the insulation layer of the pipe body 1. An exhaust hole 204 and a filling port are provided above the upper inner shell 201. The height of the injection hole 203 is lower than that of the vent hole 204. The insulation material inside the cavity 303 provides a relatively good insulation effect even if the insulation layer of the pipe body 1 does not cover the joint area. After the upper inner shell 201 and the lower inner shell 202 are connected and fixed to the pipe body 1, glue is injected from the injection hole 203 into the space formed by the second inclined side 205 and the connecting plate 101 to improve the sealing ability at the joint. At the same time, the injection hole 203 and the vent hole 204 also make it easy for operators to check whether the two sets of pipe bodies 1 are properly connected.

[0025] Please see Figures 4-5 In this embodiment, as the upper inner shell 201 and the lower inner shell 202 gradually approach each other, the second inclined side 205 applies pressure to the first inclined side 102, thereby causing the two sets of connecting plates 101 to approach each other and become concentric and coaxial, thus fixing the two sets of pipe bodies 1 together.

[0026] During pipe installation, first place the connecting plate 101 of one set of pipe bodies 1 above the lower inner shell 202. Then, hoist another set of pipe bodies 1 into the foundation pit, ensuring that the connecting plate 101 of this set of pipe bodies 1 is also within the range above the lower inner shell 202. After that, cover with the upper inner shell 201 and gradually tighten the bolts to make the upper inner shell 201 and the lower inner shell 202 gradually move closer to each other. The second inclined side 205 applies pressure to the first inclined side 102. Pressure is applied to bring the two sets of connecting plates 101 closer together and make them concentric and coaxial, thereby fixing the two sets of pipe bodies 1 together. After observing from the injection hole 203 and the vent hole 204 that the pipe bodies 1 are in place, sealant is injected from the injection hole 203 into the space formed by the second inclined side 205 and the connecting plate 101 to improve the sealing performance. After the upper shell 301 and the lower shell 302 are installed at the joint, a common connection method such as heat shrink tape is used to further enhance the insulation and corrosion resistance of the joint.

[0027] Through the above steps, the pipe body 1 is clamped by setting the upper inner shell 201 and the lower inner shell 202. During the installation of the pipe body 1, the connecting plate 101 of one set of pipe bodies 1 is first placed above the lower inner shell 202, and then the other set of pipe bodies 1 is hoisted into the foundation pit, ensuring that the connecting plate 101 of this set of pipe bodies 1 is also within the range above the lower inner shell 202. After that, the upper inner shell 201 is covered and the upper inner shell 201 and the lower inner shell 202 are gradually tightened with bolts. Under the action of the first inclined side 102 and the second inclined side 205, the two sets of pipe bodies 1 will gradually approach each other and complete the docking concentrically, which greatly reduces the time wasted during pipe docking. The protective component isolates the upper inner shell 201 and the lower inner shell 202 from the soil, preventing the upper inner shell 201, the lower inner shell 202 and the connecting parts from being corroded and causing the pipes to separate.

Claims

1. A quick-installation connector for directly buried insulated pipes, comprising a pipe body (1); characterized in that: It also includes a connecting plate (101) and a protective component. A thick insulation layer is provided on the outside of the pipe body (1). A connecting plate (101) is provided at one end of the pipe body (1). A first inclined edge (102) is provided on the outside of the connecting plate (101) near the edge of the pipe body (1). A lower inner shell (202) is provided at the bottom of the outside of the pipe body (1). An upper inner shell (201) is provided on the upper side of the outside of the pipe body (1). The upper inner shell (201) and the lower inner shell (202) are connected and fixed with bolts. A second inclined edge (205) is provided on the inside of the upper inner shell (201) and the lower inner shell (202). A protective component is provided on the outside of the lower inner shell (202) and the upper inner shell (201).

2. The quick-installation connector for directly buried insulated pipes according to claim 1, characterized in that: The second inclined side (205) has the same inclination direction and angle as the first inclined side (102), and the second inclined side (205) reaches its maximum diameter at the midpoint between the upper inner shell (201) and the lower inner shell (202).

3. The quick-installation connector for directly buried insulated pipes according to claim 1, characterized in that: The protective assembly includes an upper housing (301) and a lower housing (302). The upper housing (301) is disposed above the upper inner housing (201), and the lower housing (302) is disposed below the lower inner housing (202).

4. The quick-installation connector for directly buried insulated pipes according to claim 3, characterized in that: The upper shell (301) and the lower shell (302) are fixed together by bolts, and the cross-section of the upper shell (301) and the lower shell (302) after being spliced ​​and fixed is circular, and the diameter of the circle is smaller than the diameter of the insulation layer of the pipe body (1).

5. The quick-installation connector for directly buried insulated pipes according to claim 1, characterized in that: After installation, the upper outer shell (301) and the lower outer shell (302) together enclose the upper inner shell (201) and the lower inner shell (202) together. A clearance groove (304) is provided at the connection between the upper outer shell (301) and the lower outer shell (302) and the upper inner shell (201) or the lower inner shell (202).

6. The quick-installation connector for directly buried insulated pipes according to claim 1, characterized in that: The upper shell (301) and the lower shell (302) are provided with cavities (303), and the cavities (303) are filled with insulation material of the same material as the insulation layer of the pipe body (1).

7. The quick-installation connector for directly buried insulated pipes according to claim 1, characterized in that: An exhaust port (204) and an injection port (203) are provided on the upper part of the inner shell (201), and the height of the injection port (203) is lower than the height of the exhaust port (204).

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