An insulated pipe system and a hot fluid supply system therefor

Abstract

The utility model relates to pipeline technical field, specifically disclose a heat preservation pipeline system and heat fluid supply system, the heat preservation pipeline system contains multiple heat preservation pipe sections and heat preservation communication spare, and the heat preservation pipe section is connected through the heat preservation communication spare and is connected in proper order to the heat preservation pipe section from inside and outside contains infusion tube and heat preservation layer at least, the heat preservation communication spare contains pipeline connecting spare and the quick detach type heat preservation shell of being sleeved in the outside of pipeline connecting spare, wherein the pipeline connecting spare is used for directly connecting with infusion tube, when the heat preservation pipe section is connected with the heat preservation communication spare, the junction of both is covered with sealing sleeve ring. The heat preservation pipeline system has lower construction difficulty and maintenance difficulty, and through the mutual cooperation between the heat preservation pipe section, the heat preservation communication spare and the sealing sleeve ring, effectively reduces the heat loss in the whole heat preservation pipeline system, ensures that the heat preservation pipeline system whole has better heat preservation performance, is favorable to the popularization and use of heat preservation pipeline system.

Description

Technical Field

[0001] This utility model relates to the field of pipeline technology, specifically to a pipeline system that is integrally insulated by a pipe with thermal insulation function and pipe connectors, and a hot fluid supply system equipped with the pipeline system. Background Technology

[0002] Insulated piping systems are widely used in various applications requiring the maintenance of medium temperature, such as the transportation of hot water or steam in heating systems, the circulation of chilled water in refrigeration systems, and HVAC systems within buildings. An insulated piping system typically involves insulated pipes (usually straight pipes) and pipe fittings. The pipe fittings connect at least two insulated pipes to facilitate the construction of the insulated piping system.

[0003] For example, patent application number 202020177016.0 discloses a pipe connection structure and a water supply pipe system. The pipe connection structure includes a plastic-coated metal connector, which comprises a metal inner tube and an outer plastic coating. Along the axial direction of the plastic-coated metal connector, the metal inner tube is tightly covered by the corresponding plastic coating at least in its middle section. The connector also includes an annular rib located on the outer wall of the metal inner tube. The water supply pipe system includes a pipe and the aforementioned pipe connection structure, which are thermally fused together.

[0004] This patent provides a water supply pipeline system with overall thermal insulation properties. However, the layout of this system makes its installation process quite complicated, especially the connections between pipes. This increases the difficulty and cost of building large-scale water supply pipeline systems and also hinders subsequent maintenance and repair of the connections, thus impeding the widespread adoption of this type of water supply pipeline system. Utility Model Content

[0005] One of the purposes of this utility model is to provide an insulated pipe system that ensures good overall thermal insulation performance while having the function of quick disassembly and assembly of insulated connecting parts.

[0006] The second objective of this utility model is to provide a hot fluid supply system equipped with the above-mentioned heat-insulated pipe system.

[0007] This utility model is achieved through the following technical solution:

[0008] In a first aspect, this utility model provides an insulated pipeline system, comprising a plurality of insulated pipe sections and an insulated connecting member. Adjacent insulated pipe sections are connected by the insulated connecting member. Each insulated pipe section, from the inside out, includes at least an infusion pipe and an insulation layer. The insulated connecting member includes a pipe connector and a quick-release insulation shell fitted over the pipe connector. The pipe connector is used for direct connection with the infusion pipe. When the insulated pipe section is connected to the insulated connecting member, a sealing collar is provided at the joint between the two.

[0009] As a further improvement of this utility model, the sealing collar is a thermo-expandable collar.

[0010] As a further improvement of this utility model, in the heat-insulated pipe section, there is also an anti-corrosion layer covering the infusion pipe between the infusion pipe and the heat insulation layer.

[0011] As a further improvement of this utility model, the two ends of the insulated pipe section are formed with connecting parts, and the connecting parts include an extended infusion pipe and an anti-corrosion layer covering the infusion pipe.

[0012] As a further improvement of this utility model, in the heat-insulating pipe section, the heat-insulating layer is covered with a protective layer.

[0013] As a further improvement of this utility model, the thermal insulation connecting component is any one of a tee connector, an elbow connector, or a straight connector.

[0014] As a further improvement of this utility model, the quick-release insulation shell includes at least a first outer shell, a second outer shell, and an insulation structure disposed on the inner walls of the two. At least one side of the first outer shell and the second outer shell are connected by a folding member, and at least one of the remaining sides of each is provided with a locking member that cooperates with each other, so that after the folding member is folded, the first outer shell and the second outer shell together constitute a protective space for accommodating the pipe connector.

[0015] As a further improvement of this utility model, the first outer shell and the second outer shell are formed with a communication port that allows the connecting part to extend into. A blocking plate is provided at the communication port. When the folding part is folded, the blocking plates on the first outer shell and the second outer shell together form a blocking ring block. The inner hole of the blocking ring block only allows the connecting part to extend into.

[0016] As a further improvement of this utility model, the heat insulation structure includes an inner lining that is movably embedded in the first outer shell and the second outer shell, and the thickness of the inner lining is 6~10mm.

[0017] Secondly, this utility model provides a hot fluid supply system, which uses any of the above-mentioned insulated pipe systems for the transmission of hot fluid.

[0018] The beneficial effects of this utility model include:

[0019] (1) In this embodiment, the insulation connector consists of a pipe connector and a quick-release insulation shell fitted on the outside. The pipe connector is directly connected to the insulated pipe section to ensure the flow of the medium, while the quick-release insulation shell can be quickly fitted onto the pipe connector to form an external insulation barrier. This structure allows the two to be carried out separately during installation, so that the pipe connector can be used to quickly build the pipeline while the quick-release insulation shell is used to participate in the subsequent insulation structure construction work, which greatly reduces the overall construction difficulty of the insulation pipeline system and improves the construction speed.

[0020] (2) Under the structure of the thermal insulation pipeline system of this utility model, when repairing the pipeline, it is only necessary to remove the sealing ring and open the quick-release insulation shell to check or adjust the pipeline connection. The removal process is relatively convenient, which greatly simplifies the construction process and reduces the maintenance difficulty.

[0021] (3) In the structure of the thermal insulation pipeline system of this utility model, the sealing rings further enhance the sealing performance of the joints. Combined with the barrier rings and other structures on the quick-release thermal insulation shell in the preferred structure, the heat loss through the joints is effectively reduced, ensuring the overall thermal insulation performance of the thermal insulation pipeline system. Attached Figure Description

[0022] The accompanying drawings are provided below to illustrate the preferred embodiments of this utility model, in order to aid in understanding the purpose and advantages of this utility model, wherein:

[0023] Figure 1 This is a schematic diagram of the insulated pipe section structure;

[0024] Figure 2 Schematic diagram of a quick-release insulated shell structure for a tee pipe connector;

[0025] Figure 3 Schematic diagram of a quick-release insulated shell structure for 90° elbow pipe connectors;

[0026] Figure 4 Schematic diagram of a quick-release insulation shell structure for 45° elbow pipe connectors;

[0027] Figure 5 Schematic diagram of a quick-release insulated shell structure for straight-through pipe connectors;

[0028] Figure 6 This is a schematic diagram of the structure after the tee connector is connected to three insulated pipe sections;

[0029] Figure 7 for Figure 6 The front view of the structure and the cross-sectional view at A-A'. Detailed Implementation

[0030] The present invention will now be described in further detail with reference to the accompanying drawings and embodiments.

[0031] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the construction shown in the accompanying drawings. The terms "inner" and "outer" refer to directions toward or away from the geometric center of a specific component, respectively. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive.

[0032] Example 1:

[0033] This embodiment provides an insulated pipe system, which includes several insulated pipe sections 1, and two adjacent insulated pipe sections 1 are connected by an insulated connector 2. When the insulated pipe section 1 is connected to the insulated connector 2, the joint between the two is also covered with a sealing collar 3.

[0034] In this insulated piping system, the structure of a single insulated pipe section 1 is as follows: Figure 1 As shown, from the inside out, the system includes an infusion pipe 101, an anti-corrosion layer 102, an insulation layer 103, and a protective layer 104. For example, the infusion pipe 101 is a stainless steel base pipe, the anti-corrosion layer 102 is a high-density polyethylene (HDPE) coating, the insulation layer 103 is a foamed polyethylene (PE) insulation layer, and the protective layer 104 is a low-density polyethylene (LDPE) protective layer. Since liquid media such as water placed on stainless steel can easily corrode it at the points of contact, a high-density polyethylene (HDPE) coating with waterproof and anti-corrosion capabilities is applied to the stainless steel base pipe for effective protection. Correspondingly, since the insulated pipeline system may need to be exposed to the external environment, a low-density polyethylene (LDPE) protective layer with UV resistance is also installed outside the PE insulation layer 103 to reduce damage to the insulation layer 103 from the external environment, further extending the overall service life of the insulated pipeline system.

[0035] In this embodiment, the two ends of the insulated pipe section 1 are formed with connecting parts 1-1. The connecting parts 1-1 are composed of an infusion pipe 101 and an anti-corrosion layer 102 covering the infusion pipe 101. It is used to connect with the insulated connector 2. The infusion pipe 101 has more extension and exposed part than the anti-corrosion layer 102, so that the end of the infusion pipe 101 can extend into the insulated connector 2 to complete the connection. The part of the infusion pipe 101 covered by the anti-corrosion layer 102 is usually placed at the junction of the insulated connector 2 and the insulated pipe section 1, so that the anti-corrosion layer 102 can protect the infusion pipe 101 that does not extend into the insulated connector.

[0036] In this insulated piping system, the pipe layout will change according to the user's actual needs, therefore the insulated connector 2 has various forms. For example, a tee connector is used to connect three insulated pipe sections 1; elbow connectors and straight connectors can both connect two insulated pipe sections 1. After connection via a straight connector, the central axes of the two insulated pipe sections 1 are parallel, while after connection via an elbow connector, an angle is formed between the central axes of the two insulated pipe sections 1. Common elbow connectors include 90° elbow connectors and 45° elbow connectors. Regardless of the form of the insulated connector 2, it is always composed of a pipe connector 201 and a quick-release insulated shell 202 fitted over the pipe connector 201. The pipe connector 201 is used to directly connect to the infusion tube 101 in the insulated pipe section 1. This component can be a commercially available stainless steel pipe connector 201. In this embodiment, the diameter of the pipe connector 201 is larger than the diameter of the infusion tube 101 so that it can be fitted onto the exposed infusion tube 101 in the connecting part 1-1 to achieve connection between the two. The quick-release insulation shell 202 has different shapes to adapt to different types of pipe connectors 201. For example, Figure 2 The diagram discloses a quick-release insulation shell 202 for a tee pipe connector 201; as shown Figure 3 The diagram discloses a quick-release insulation shell 202 for a 90° elbow pipe connector 201; as shown Figure 4 The diagram discloses a quick-release insulation shell 202 for a 45° pipe connector 201; as shown Figure 5 The diagram discloses a quick-release insulation shell 202 for a straight pipe connector 201. This structure not only makes the construction of the insulation connector 2 more convenient, but also allows it to quickly compensate for the decrease in insulation capacity after long-term use by replacing the quick-release insulation shell 202.

[0037] Among them, such as Figures 6-7As shown, taking the structure after the three-way connector is connected to three insulated pipe sections 1 as an example, internally, the exposed infusion pipe 101 in the connecting part 1-1 is inserted into the pipe connector 201 to form a connection between the two; externally, a quick-release insulation shell 202 adapted to its shape is fitted on the pipe connector 201. The quick-release insulation shell 202 can cover the entire pipe connector 201 and the connecting part 1-1 to form insulation for both. In particular, for the connecting part 1-1, the quick-release insulation shell 202 can replace the unextended insulation layer 103 and protective layer 104 on the insulated pipe section 1 to provide insulation and protection for the infusion pipe 101 placed at the connection; at the same time, at the connection between the insulated pipe section 1 and the insulated connector 2, a sealing ring 3 is also wrapped on the outside to ensure the sealing of the connection, reduce the possibility of heat loss from the connection, and also reduce the possibility of external liquids such as water seeping into the connection and corroding the internal pipe.

[0038] In this structure, the insulation pipe section 1 and the insulation connector 2 each ensure good insulation performance through their respective structures. When the two are combined, the arrangement of the sealing ring 3 also greatly reduces heat loss at the connection point, thus ensuring that the overall insulation pipeline system has good insulation capabilities. At the same time, the introduction of the quick-release insulation shell 202 in the insulation connector 2 makes the overall construction of the insulation pipeline system and the maintenance and repair of the insulation connector 2 more convenient, which is conducive to the promotion and use of the entire insulation pipeline system.

[0039] Preferably, the sealing collar 3 is a thermo-expansion collar, typically made of polyethylene, which shrinks inward when heated. On one hand, during the assembly of the insulated pipe system, the initial size of the selected thermo-expansion collar can be relatively large, thus preventing frictional interference with the insulated pipe section 1 and allowing relative sliding at the connection point to adjust the final wrapping point of the thermo-expansion collar. On the other hand, once the position of the thermo-expansion collar is determined, it can be induced to shrink by hot air heating, thereby ensuring a tight fit with the outer surface of the insulated connector 2 and the insulated pipe section 1, especially in situations such as... Figure 6 When there is a difference in pipe diameter between the insulated connector 2 and the insulated pipe section 1, the shrinkage characteristics of the thermal expansion collar ensure that both ends fit tightly against both, while the middle section of the thermal expansion collar tightly covers the joint, thus ensuring the sealing effect of the sealing collar 3. Furthermore, the sealing collar 3 made of this material is inexpensive and easy to cut. Therefore, when the sealing collar 3 needs to be disassembled for maintenance of the insulated piping system, it can be quickly removed by breaking its structure through shearing or other means. After the maintenance is completed, a new sealing collar 3 can be quickly installed.

[0040] Preferably, the quick-release insulation shell 202 includes at least a first outer shell 202-1, a second outer shell 202-2, and an insulation structure 202-3 disposed on the inner walls of both. The insulation structure 202-3 can be a material layer fixedly mounted on the outer shell. One side of the first outer shell 202-1 and the second outer shell 202-2 is connected by a folding member 202-4, and at least one of their remaining sides is provided with a cooperating locking member 202-5. The placement of the locking member 202-5 depends on the shape of the quick-release insulation shell 202. Figure 2 As shown, in the quick-release insulation shell 202 adapted to the tee connector, folding parts 202-4 are provided on the long sides of the first outer shell 202-1 and the second outer shell 202-2, and locking parts 202-5 are provided on the side of the straight pipe section; as Figures 3-4 As shown, in both types of quick-release insulation shells 202 adapted to elbow connectors, folding members 202-4 are arranged on the outer curved side of the bend section of the first outer shell 202-1 and the second outer shell 202-2, while locking members 202-5 are provided on the side of the straight pipe section; as Figure 5 As shown, in the quick-release insulation shell 202 adapted to the straight connector, a folding member 202-4 is provided on the straight edge of one side of the first outer shell 202-1 and the second outer shell 202-2, and a locking member 202-5 is provided on the straight edge of the other side. In this structure, when the folding member 202-4 is folded, the first outer shell 202-1 and the second outer shell 202-2 can be closed together to form a protective space for accommodating the pipe connector 201. The pipe connector 201 is placed in the protective space, and the gap between the pipe connector 201 and the outer shell is filled by the insulation structure 202-3, so that the insulation structure 202-3 can fit tightly against the pipe connector 201 to achieve the insulation effect. Compared to the structure where the first outer casing 202-1 and the second outer casing 202-2 are completely separated, this structure facilitates the quick fitting and fixing of the two on the pipe connector 201, thereby further facilitating the rapid construction of the insulated pipe system.

[0041] More preferably, both the first outer shell 202-1 and the second outer shell 202-2 have a connecting port 202-6 that allows the connecting part 1-1 to extend into. A barrier plate 202-7 is arranged at the connecting port 202-6. Taking the quick-release insulation shell 202 of the tee connector as an example, both sets of outer shells include three connecting ports 202-6. When the first outer shell 202-1 and the second outer shell 202-2 are joined, their barrier plates 202-7 combine to form a barrier ring. The inner hole of this barrier ring only allows the connecting part 1-1 to extend into. Part of the pipe section on the connecting part 1-1 can be directly installed into the pipe connector 201 to form a connection, while the remaining exposed parts of the connecting part 1-1 can be covered by the quick-release insulation shell 202 for insulation. The barrier ring block, together with the first outer shell 202-1 and the second outer shell 202-2, forms a more secure protective space, thereby further reducing the outlet for heat leakage and improving the heat insulation effect of the quick-release insulation shell 202.

[0042] More preferably, the insulation structure 202-3 is an inner lining layer movably embedded within the first outer shell 202-1 and the second outer shell 202-2. For example, in this embodiment, the inner lining layer is made of foamed polyethylene material with a thickness of 6mm. This structure allows users to easily replace the inner lining layer with different types and thicknesses according to the usage environment, the specifications and dimensions of the pipe connector 201, and other relevant requirements. This makes the quick-release insulation shell 202 suitable for a wider range of applications, thereby enhancing the environmental adaptability of the insulated piping system.

[0043] More preferably, such as Figure 5As shown, taking a straight-through connector as an example, the locking element 202-5 consists of locking buckles 202-5-2 and locking slots 202-5-1 evenly distributed on the first outer shell 202-1 and the second outer shell 202-2. The specific structure can be a common buckle and slot configuration. On the first outer shell 202-1 and the second outer shell 202-2, the locking buckles 202-5-2 and locking slots 202-5-1 are staggered so that when they are joined together, the locking buckles 202-5-2 on the first outer shell 202-1 and the locking slots 202-5-1 on the second outer shell 202-2 engage and fix each other. Simultaneously, the locking slots 202-5-1 on the first outer shell 202-1 and the locking buckles 202-5-1 on the second outer shell 202-2... The locking clips 202-5-2 and 202-5-1 are interlocked and fixed to secure the quick-release insulation shell 202, ensuring rapid installation. During disassembly, the quick-release insulation shell 202 can be removed simply by releasing the interlocking relationship between the locking clips 202-5-2 and the locking slots 202-5-1. This structure ensures that the quick-release insulation shell 202 has a quick-release and reassembly function, and the quick-release insulation shell 202 with this structure can be repeatedly disassembled and reassembled, extending the service life of a single quick-release insulation shell 202.

[0044] Example 2:

[0045] In this embodiment, a hot fluid supply system is provided, specifically a hot water supply system, which includes a hot water heating unit and a drinking water output unit, and the hot water is transferred between the two through the insulated pipe system in Embodiment 1.

[0046] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of this utility model, and not to limit it. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that they can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent substitutions for some of the technical features. Such modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this utility model.

Claims

1. A thermal insulation pipe system comprising a plurality of thermal insulation pipe sections (1) and thermal insulation connecting members (2), wherein two adjacent thermal insulation pipe sections (1) are connected by the thermal insulation connecting members (2), characterized in that, The insulated pipe section (1) includes, from the inside out, at least an infusion pipe (101) and an insulation layer (103); the insulated connecting piece (2) includes a pipe connector (201) and a quick-release insulation shell (202) fitted over the pipe connector (201), wherein the pipe connector (201) is used to directly connect to the infusion pipe (101); when the insulated pipe section (1) is connected to the insulated connecting piece (2), the joint between the two is covered with a sealing collar (3).

2. The thermal insulation pipeline system according to claim 1, characterized in that, The sealing collar (3) is a thermo-expandable collar.

3. The thermal insulation pipeline system according to claim 1, characterized in that, In the insulated pipe section (1), there is also an anti-corrosion layer (102) covering the infusion pipe (101) between the infusion pipe (101) and the insulation layer (103).

4. The thermal insulation pipeline system according to claim 3, characterized in that, The insulated pipe section (1) has a connecting part (1-1) at both ends. The connecting part (1-1) includes the extended infusion pipe (101) and the anti-corrosion layer (102) covering the infusion pipe (101).

5. The thermal insulation pipeline system according to claim 1, characterized in that, In the insulation pipe section (1), the insulation layer (103) is covered with a protective layer (104).

6. The thermal insulation pipeline system according to claim 1, characterized in that, The thermal insulation connector (2) is any one of a tee connector, an elbow connector, or a straight connector.

7. A thermal insulation pipe system according to any one of claims 1 to 6, characterized in that, The quick-release insulation shell (202) includes at least a first outer shell (202-1), a second outer shell (202-2), and an insulation structure (202-3) disposed on the inner walls of both. At least one side of the first outer shell (202-1) and the second outer shell (202-2) are connected by a folding member (202-4), and at least one of the remaining sides of each is provided with a locking member (202-5) that cooperates with each other, so that when the folding member (202-4) is folded, the first outer shell (202-1) and the second outer shell (202-2) together constitute a protective space for accommodating the pipe connector (201).

8. The thermal insulation pipeline system according to claim 7, characterized in that, The first outer shell (202-1) and the second outer shell (202-2) have a connecting port (202-6) that allows the connecting part (1-1) to extend into. A barrier plate (202-7) is provided at the connecting port (202-6). When the folding member (202-4) is folded, the barrier plate (202-7) on the first outer shell (202-1) and the second outer shell (202-2) together form a barrier ring block. The inner hole of the barrier ring block only allows the connecting part (1-1) to extend into.

9. The thermal insulation pipeline system according to claim 7, characterized in that, The thermal insulation structure (202-3) includes an inner lining portion that is movably embedded in the first outer shell (202-1) and the second outer shell (202-2), and the thickness of the inner lining portion is 6~10mm.

10. A heat fluid supply system, characterized in that, The heat transfer fluid is carried out using an insulated pipe system as described in any one of claims 1 to 9.

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