Quick-release polyurethane thermal insulation pipe

Abstract

The utility model discloses a quick detach polyurethane heat preservation pipe, including first heat preservation pipe, second heat preservation pipe, still including the detachable sealing device of setting up between both, the detachable sealing device includes connecting pipe body and sealing assembly, the end face of connecting pipe body, first heat preservation pipe, second heat preservation pipe all is equipped with flange, adjacent the flange between through bolt fixed, sealing assembly is located between connecting pipe body and first heat preservation pipe, second heat preservation pipe, the outside of connecting pipe body is equipped with modular heat preservation layer, the heat preservation layer is by heat preservation unit and is detachably connected through fixed structure, the pressure detection channel is seted up in connecting pipe body inside, is equipped with pressure sensing module group in pressure detection channel. The utility model belongs to heat preservation pipe technical field, specifically is to provide a kind of for solving the problem of low efficiency and fault monitoring absence in prior art in dismounting.

Description

Technical Field

[0001] This utility model belongs to the field of thermal insulation pipe technology, specifically referring to a quick-disassembly polyurethane thermal insulation pipe. Background Technology

[0002] Insulated pipes are widely used in liquid and gas transmission networks, chemical pipeline insulation projects, petroleum, chemical, district heating networks, central air conditioning ventilation ducts, municipal engineering, etc. Currently, most existing insulated pipes are fixed by bolts and flanges. Flange installation and removal are more common, but traditional flat flanges require disassembling each bolt individually, which is time-consuming.

[0003] In addition, leaks at pipe connections are difficult to detect in real time, which can lead to delayed accident warnings. Traditional solutions cannot distinguish between leaks and blockages based on single pressure data. Utility Model Content

[0004] The technical problem to be solved by this invention is the low disassembly efficiency and lack of fault monitoring in the prior art.

[0005] To solve the above problems, the technical solution adopted by this utility model is as follows:

[0006] The present invention proposes a quick-disassembly polyurethane insulation pipe, which includes a first insulation pipe, a second insulation pipe, and a disassembly and sealing device installed between the two.

[0007] The disassembly and sealing device includes a connecting pipe body and a sealing assembly. The end faces of the connecting pipe body, the first insulation pipe, and the second insulation pipe are all provided with flanges. Adjacent flanges are fixed together by bolts. The sealing assembly is located between the connecting pipe body and the first insulation pipe and the second insulation pipe.

[0008] The outer side of the connecting pipe is provided with a modular insulation layer, which is formed by detachably connecting insulation units through a fixed structure; a pressure detection channel is opened inside the connecting pipe, and a pressure sensing module is installed in the pressure detection channel.

[0009] Preferably, the sealing assembly includes tapered sealing tubes disposed on both sides of the connecting pipe body, the large-diameter end of the tapered sealing tube being integrally fixed with the pressure detection channel, and a guide groove being provided between the tapered sealing tube and the connecting pipe body.

[0010] Preferably, the ends of the first and second insulation pipes are provided with positioning parts that match the guide grooves. The inner circumference of the positioning part forms an inverted frustum-shaped groove. The groove fits against the small diameter outer surface of the conical sealing pipe. The conical sealing pipe is interference-fitted with the groove. A sealing ring is provided at the connection between the first and second insulation pipes and the pressure detection channel.

[0011] Preferably, the insulation unit includes a polyurethane insulation core that adheres to the outside of the connecting pipe body and a metal reflective layer that adheres to the outside of the polyurethane insulation core, and the fixing structure includes a clamp or tape.

[0012] Preferably, the outside of the connecting pipe is provided with a wireless transmission module, which is electrically connected to the pressure sensing module. The pressure sensing module includes a water pressure sensor, a water velocity sensor, and a temperature sensor. The data detected by the pressure sensing module is transmitted to the background monitoring in real time through the wireless transmission module.

[0013] The beneficial effects of this utility model by adopting the above structure are as follows:

[0014] 1. The interference seal design of the tapered sealing tube and the groove can solve the leakage problem caused by uneven preload of traditional flange bolts, and the design of both can also improve the speed of installation and disassembly.

[0015] 2. By setting up the pressure sensing module, the internal water pressure, water velocity and water temperature are directly sampled through the pressure channel. When the flow rate rises abnormally and the temperature drops suddenly, an early alarm is triggered. It can also monitor the temperature difference between the pipe wall and the medium and issue an alarm in time. Attached Figure Description

[0016] Figure 1 A schematic diagram of the overall structure of a quick-disassembly polyurethane insulation pipe provided in this application;

[0017] Figure 2 This is a schematic diagram of the sealing assembly in this application;

[0018] Figure 3 This is a schematic diagram of the internal structure of the first insulation pipe and the disassembly and assembly sealing device in this application;

[0019] Figure 4 for Figure 1 The main view.

[0020] Among them, 1. First insulation pipe, 2. Second insulation pipe, 3. Disassembly and sealing device, 4. Connecting pipe body, 5. Sealing assembly, 6. Flange, 7. Modular insulation layer;

[0021] 11. Positioning part; 12. Card slot;

[0022] 41. Pressure detection channel; 42. Pressure sensor; 43. Wireless transmission module;

[0023] 51. Conical sealing tube; 52. Guide groove; 53. Sealing ring;

[0024] 71. Insulation unit; 72. Fixing structure; 73. Polyurethane insulation core; 74. Metal reflective layer.

[0025] The accompanying drawings are provided to further understand the present invention and form part of the specification. They are used together with the embodiments of the present invention to explain the present invention and do not constitute a limitation thereof. Detailed Implementation

[0026] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. All other embodiments obtained by those skilled in the art based on the embodiments of the present utility model without creative effort are within the protection scope of the present utility model.

[0027] In this application, unless otherwise expressly specified and limited, the terms "set," "install," "connect," and "link" 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 an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this application based on the specific circumstances.

[0028] In the description of this utility model, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this utility model.

[0029] Example 1

[0030] Please see Figures 1-4 As shown, the present invention proposes a quick-disassembly polyurethane insulation pipe, including a first insulation pipe 1, a second insulation pipe 2, and a disassembly and sealing device 3 installed between the two. The disassembly and sealing device 3 includes a connecting pipe body 4 and a sealing component 5. The end faces of the connecting pipe body 4, the first insulation pipe 1, and the second insulation pipe 2 are all provided with flanges 6, and adjacent flanges 6 are fixed together by bolts. The sealing component 5 is located between the connecting pipe body 4 and the first insulation pipe 1 and the second insulation pipe 2.

[0031] refer to Figure 3As shown, the sealing assembly 5 includes tapered sealing tubes 51 disposed on both sides of the connecting tube body 4. The large-diameter end of the tapered sealing tube 51 is integrally fixed with the pressure detection channel 41. A guide groove 52 is provided between the tapered sealing tube 51 and the connecting tube body. The ends of the first insulation tube 1 and the second insulation tube 2 are provided with positioning parts 11 that match the guide groove 52. The inner circumference of the positioning part 11 forms an inverted frustum-shaped groove 12. The groove 12 fits against the small-diameter outer surface of the tapered sealing tube 51. The tapered sealing tube 51 and the groove 12 are press-fitted. A sealing ring 53 is provided at the connection between the first insulation tube 1, the second insulation tube 2 and the pressure detection channel 41. The surface of the tapered sealing tube 51 is coated with a composite polytetrafluoroethylene coating.

[0032] In this structure, the interference fit design between the tapered sealing tube 51 and the groove 12 solves the leakage problem caused by uneven preload of traditional flange bolts, and the design of both also improves the speed of installation and disassembly. The tapered sealing tube 51 is inserted into the groove 12, and its mating surface is coated with polytetrafluoroethylene (FPTFE) (friction coefficient μ = 0.08). The clearance fit between the guide groove 52 and the positioning boss is preferably 0.5mm to ensure alignment during installation and disassembly. During disassembly, simply loosen the bolts and pull the pipe axially away from the tapered surface.

[0033] As a further example:

[0034] refer to Figure 1 As shown, a modular insulation layer 7 is provided on the outside of the connecting pipe body 4. The insulation layer is formed by detachably connecting insulation units 71 through a fixing structure 72.

[0035] like Figure 3 As shown, the insulation unit 71 includes a polyurethane insulation core 73 that is attached to the outside of the connecting pipe body 4, and a metal reflective layer 74 that is attached to the outside of the polyurethane insulation core 73. The fixing structure 72 includes a clamp or tape.

[0036] In use, the modular insulation layer can provide insulation and protection at the connection between the first insulation pipe 1 and the second insulation pipe 2.

[0037] Example 2

[0038] like Figure 1 and Figure 3 As shown, a pressure detection channel 41 is provided inside the connecting pipe body 4, and a pressure sensing module 42 is provided inside the pressure detection channel 41. A wireless transmission module 43 is provided outside the connecting pipe body 4. The wireless transmission module 43 is electrically connected to the pressure sensing module 42 and transmits the data detected by the pressure sensing module 42 to the background monitoring in real time through the wireless transmission module 43.

[0039] In a preferred embodiment, the pressure sensing module 42 includes a water pressure sensor, a water velocity sensor, and a temperature sensor. The water pressure sensor is a Honeywell PT124G-210 (range 0-5MPa), the water velocity sensor is an ultrasonic time-of-flight probe with a transmission frequency of 1MHz, the temperature sensor is a PT100 platinum resistance thermometer attached to the inner wall of the channel, and the wireless transmission module 43 is a LoRa module.

[0040] In this embodiment, by setting up the pressure sensing module 42, the internal water pressure, water velocity and water temperature are directly sampled through the pressure channel. When the flow rate increases abnormally and the temperature drops sharply, an early alarm is triggered. It can also monitor the temperature difference between the pipe wall and the medium and issue an alarm in time.

[0041] Here is one example of a judgment method:

[0042] When the water pressure drops by 10% and the water velocity increases by 15%, it can be considered a level one alarm.

[0043] When the water pressure increases by 20% and the water velocity decreases by 30%, it can be judged as a level two alarm;

[0044] When the temperature difference between the pipe wall and the medium is less than 3℃, it can be judged as a level three alarm;

[0045] It should be noted that a processor electrically connected to the sensor module is also installed on the outer wall of the connecting tube. Sensor data is transmitted to the STM32F407 processor via the AD7793 analog-to-digital converter and uploaded to the backend or cloud platform via the LoRa module to realize real-time alarm.

[0046] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the inventive spirit of the present invention, such designs should fall within the protection scope of the present invention.

Claims

1. A quick-disassembly polyurethane insulation pipe, comprising a first insulation pipe (1) and a second insulation pipe (2), characterized in that, Also includes: Install and remove the sealing device (3) between the two; The disassembly and sealing device (3) includes a connecting pipe body (4) and a sealing component (5). The end faces of the connecting pipe body (4), the first insulation pipe (1), and the second insulation pipe (2) are all provided with flanges (6). Adjacent flanges (6) are fixed together by bolts. The sealing component (5) is located between the connecting pipe body (4) and the first insulation pipe (1) and the second insulation pipe (2). The outer side of the connecting pipe (4) is provided with a modular insulation layer (7), which is formed by detachably connecting insulation units (71) through a fixing structure (72); a pressure detection channel (41) is provided inside the connecting pipe (4), and a pressure sensing module (42) is provided inside the pressure detection channel (41).

2. The quick-disassembly polyurethane insulation pipe according to claim 1, characterized in that: The sealing assembly (5) includes a tapered sealing tube (51) disposed on both sides of the connecting tube body (4). The large diameter end of the tapered sealing tube (51) is integrally fixed with the pressure detection channel (41). A guide groove (52) is provided between the tapered sealing tube (51) and the connecting tube body.

3. The quick-disassembly polyurethane insulation pipe according to claim 2, characterized in that: The ends of the first insulation pipe (1) and the second insulation pipe (2) are provided with positioning parts (11) that match the guide groove (52). The inner circumference of the positioning part (11) forms an inverted frustum-shaped groove (12). The groove (12) fits against the small diameter outer surface of the conical sealing pipe (51). The conical sealing pipe (51) and the groove (12) are interference fit.

4. The quick-disassembly polyurethane insulation pipe according to claim 3, characterized in that: The insulation unit (71) includes a polyurethane insulation core (73) that is attached to the outside of the connecting pipe (4) and a metal reflective layer (74) that is attached to the outside of the polyurethane insulation core (73). The fixing structure (72) includes a clamp or tape.

5. A quick-disassembly polyurethane insulation pipe according to claim 4, characterized in that: The outside of the connecting pipe (4) is provided with a wireless transmission module (43). The wireless transmission module (43) is electrically connected to the pressure sensing module (42). The data detected by the pressure sensing module is transmitted to the background monitoring in real time through the wireless transmission module (43). The pressure sensing module (42) includes a water pressure sensor, a water velocity sensor and a temperature sensor.

6. A quick-disassembly polyurethane insulation pipe according to claim 1 or 3, characterized in that: A sealing ring (53) is provided at the connection between the first insulation pipe (1), the second insulation pipe (2) and the pressure detection channel (41).

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