Multi-layer heating pipe for urban heating

Abstract

The utility model discloses a multi-layer heating pipe for urban heating, which comprises a pipe body, a casing pipe is arranged on the outer wall of one end of the pipe body, the casing pipe is sleeved outside one end of the pipe body, other devices can be installed for the heating pipe while the shockproof action is achieved, a lower fixing buckle is arranged on the outer wall of the bottom of the pipe body, and a fixing plate is arranged at the bottom of the lower fixing buckle. The fixing plate is in a long-strip plate shape and is fixed to the bottom of the lower fixing buckle, four sets of fixing bolts are installed on the top of the fixing plate, the fixing plate is fixed to a wall through bolts, the lower fixing buckle is located among the four sets of fixing bolts, two sets of connecting plates are installed on one side of the lower fixing buckle, and the upper fixing buckle is installed on the outer wall of the top of the pipe body. Due to the fact that the high-density polyethylene protection layer is installed, polyethylene is good in chemical stability, can resist erosion of most of acid and alkali, does not swell and is excellent in electrical insulation performance, and the high-density polyethylene protection layer protects the pipe body from being damaged by mechanical hard objects and has a waterproof function.

Description

Technical Field

[0001] The utility model relates to the technical field of urban heating, in particular to a multi-layer heating pipe for urban heating. Background Art

[0002] Today's urban heating is mostly done by thermal power plants and other enterprises that generate a large amount of hot water during the production process. In order to utilize the waste heat, it is transported to nearby units and several residential homes for circulation. The ice water flows back to the factory to be cooled and exchanged and then becomes hot water.

[0003] Patent document authorization announcement number CN215928685U discloses "a multi-layer heating pipe for urban heating, including a heating pipe body and a fixed component, wherein the heating pipe body is composed of a seamless steel pipe, an oxygen-containing antibacterial layer, an insulation layer, a sound-absorbing layer, a reinforcement layer, a corrosion-resistant layer, a protective layer and a hydrophobic layer from the inside to the outside, wherein the oxygen-containing antibacterial layer is a nano-silver ion antibacterial agent layer, the reinforcement layer is a wire mesh structure made of low-carbon steel, and the corrosion-resistant layer is a corrosion-resistant ceramic layer. The utility model achieves a good corrosion resistance of the heating pipe by providing an oxygen-containing antibacterial layer, a reinforcement layer, a corrosion-resistant layer and a protective layer, thereby preventing the insulation layer from falling off due to corrosion and improving the service life." The above-mentioned heating pipe improves the service life of the heating pipe, but the issue of outer layer protection of the heating pipe is not fully considered. Utility Model Content

[0004] The utility model aims to provide a multi-layer heating pipe for urban heating, so as to solve the technical problem that the outer layer protection of the multi-layer heating pipe in the prior art is not perfect.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a multi-layer heating pipe for urban heating, comprising a pipe body, wherein a sleeve is installed on the outer wall of one end of the pipe body;

[0006] A lower fixing buckle is installed on the bottom outer wall of the tube body, a fixing plate is installed on the bottom of the lower fixing buckle, four groups of fixing bolts are installed on the top of the fixing plate, the lower fixing buckle is located between the four groups of fixing bolts, two groups of connecting plates are installed on one side of the lower fixing buckle, an upper fixing buckle is installed on the top outer wall of the tube body, the upper fixing buckle and the lower fixing buckle are connected by a connecting plate, anti-slip pads are installed on the inner walls of the upper fixing buckle and the lower fixing buckle, a flow tester is installed on the top of the sleeve, and a high-density polyethylene protective layer is installed on the inner wall of the tube body.

[0007] Preferably, a reinforcement layer is installed on the inner wall of the high-density polyethylene protective layer.

[0008] Preferably, an antistatic layer is installed on the inner wall of the reinforcement layer.

[0009] Preferably, a shockproof layer is installed on the inner wall of the antistatic layer.

[0010] Preferably, a polyurethane insulation layer is installed on the inner wall of the shockproof layer.

[0011] Preferably, a seamless steel pipe is installed on the inner wall of the polyurethane thermal insulation layer.

[0012] Preferably, the inner wall of the seamless steel pipe is provided with an anti-corrosion layer, and the inner wall of the anti-corrosion layer is provided with a sterilization layer.

[0013] Compared with the prior art, the beneficial effects of the utility model are:

[0014] 1. The utility model is prefabricated with a black or yellow high-density polyethylene material with a certain wall thickness by installing a high-density polyethylene protective layer. The polyethylene is odorless, non-toxic, feels like wax, has excellent low-temperature resistance, good chemical stability, can withstand most acid and alkali corrosion, does not swell, and has excellent electrical insulation performance. The high-density polyethylene protective layer protects the pipe body from damage by mechanical hard objects and also has a waterproof function.

[0015] 2. The utility model is equipped with a flow tester, which can sense the flow of hot water inside the pipe through the pipe body, and then display it through the micro display above it, so that the staff can compare the difference between the pre-input flow and the measured flow to calculate the energy loss. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 It is a three-dimensional structural schematic diagram of the utility model;

[0017] Figure 2 It is a schematic diagram of the cross-sectional structure of the utility model;

[0018] Figure 3 This is a schematic diagram of the three-dimensional structure of the flow tester of the utility model;

[0019] Figure 4 This is a schematic diagram of the cross-sectional structure of the heating pipe of the utility model;

[0020] Figure 5 It is a schematic diagram of the three-dimensional structure of the fixing buckle of the utility model.

[0021] In the figure: 1. pipe body; 2. casing; 3. fixing plate; 4. fixing bolt; 5. lower fixing buckle; 6. upper fixing buckle; 7. anti-slip pad; 8. connecting plate; 9. high-density polyethylene protective layer; 10. reinforcement layer; 11. anti-static layer; 12. shockproof layer; 13. polyurethane insulation layer; 14. seamless steel pipe; 15. anti-corrosion layer; 16. sterilization layer; 17. flow tester. DETAILED DESCRIPTION

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiment is only one embodiment of the utility model, not all embodiments. Based on the embodiments of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] In the description of the present invention, it should be noted that the terms "upper", "lower", "inner", "outer", "front end", "rear end", "two ends", "one end", "the other end" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operate in a specific orientation, and therefore cannot be understood as a limitation on the present invention. In addition, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance.

[0024] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "provided with", "connected", etc. should be understood in a broad sense. For example, "connected" can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0025] See also Figure 1 , Figure 2 , Figure 3 , Figure 4 and Figure 5The utility model provides an embodiment: a multi-layer heating pipe for urban heating, comprising a pipe body 1, a sleeve 2 is installed on the outer wall of one end of the pipe body 1, and the sleeve 2 is sleeved on the outside of one end of the pipe body 1, which plays an anti-vibration role and can also install other devices for the heating pipe. A lower fixing buckle 5 is installed on the bottom outer wall of the pipe body 1, and a fixing plate 3 is installed on the bottom of the lower fixing buckle 5. The fixing plate 3 is in the shape of a long strip and is fixed to the bottom of the lower fixing buckle 5. Four groups of fixing bolts 4 are installed on the top of the fixing plate 3. The fixing plate 3 is fixed to the wall by bolts. The lower fixing buckle 5 is located between the four groups of fixing bolts 4. Two groups of connecting plates 8 are installed on one side of the lower fixing buckle 5. An upper fixing buckle 6 is installed on the top outer wall of the pipe body 1. The upper fixing buckle 6 and the lower fixing buckle 5 are connected by the connecting plate 8 One end of the connecting plate 8 is fixed to the upper fixing buckle 6 by bolts, and the other end is fixed to the lower fixing buckle 5 by bolts to form a closed ring buckle, and the heating pipe is fixed in the upper fixing buckle 6 and the lower fixing buckle 5. The inner walls of the upper fixing buckle 6 and the lower fixing buckle 5 are installed with anti-skid pads 7, and the anti-skid pads 7 are sleeved on the outside of the pipe body 1 to prevent the pipe body 1 from slipping out of the ring buckle formed by the two fixing buckles. A flow tester 17 is installed on the top of the sleeve 2. The flow tester 17 detects the water flow passing through the inside of the heating pipe through the pipe body 1, and then the staff compares it with the pre-input water flow to obtain the energy loss in the heating process. The inner wall of the pipe body 1 is installed with a high-density polyethylene protective layer 9, which can protect the pipe body 1 from damage by mechanical hard objects and also has a waterproof function. The inner wall of the high-density polyethylene protective layer 9 is installed with a reinforcement layer 10, which is a tubular steel wire mesh with high hardness, which strengthens the stability of the heating pipe. The inner wall of the reinforcement layer 10 is installed with an anti-static layer 11, which is mainly composed of graphite, has stable and permanent conductivity, and is widely available and low in cost, which prevents the heating pipe from causing accidents due to static electricity conduction. The inner wall of the anti-static layer 11 is installed with a shockproof layer 12, and the core layer of the shockproof layer 12 is mainly composed of foamed magnesium alloy, and the upper and lower layers are aluminum plates or other thin plates, which are characterized by low density and good elasticity. After being compressed and deformed by force, it can restore the shape of the raw material by its own elasticity. When a collision occurs, it can absorb the impact energy, providing a good shock-absorbing effect for the heating pipe. A polyurethane insulation layer 13 is installed on the inner wall, and a seamless steel pipe 14 is installed on the inner wall of the polyurethane insulation layer 13. The polyurethane insulation layer 13 is formed by injecting hard polyurethane foam plastic concentrate into the cavity formed between the steel pipe and the outer protective layer by a high-pressure foaming machine at one time, which provides a guarantee for the thermal insulation effect of the heating pipe. The seamless steel pipe 14 is formed by perforating a whole round steel. The steel pipe with no welds on the surface is the main supporting structure of the heating pipe. An anti-corrosion layer 15 is installed on the inner wall of the seamless steel pipe 14. The anti-corrosion layer 15 is made of special high-temperature solution and inorganic polymer to prevent the seamless steel pipe 14 from being corroded and rusted. A sterilization layer 16 is installed on the inner wall of the anti-corrosion layer 15. The sterilization layer 16 is synthesized from polyimide substances and plays a sterilization role in the heating pipe.

[0026] Working principle: The heating pipe is fixed by the ring structure formed by the upper fixing buckle 6 and the lower fixing buckle 5 through the connecting plate 8. There is an anti-skid pad 7 between the pipe body 1 and the two fixing buckles to prevent the pipe body 1 from slipping out. The high-density polyethylene protective layer 9 is made of high-density polyethylene, which protects the pipe body 1 from damage by mechanical hard objects while also having a waterproof function. The reinforcement layer 10 strengthens the stability of the heating pipe. The anti-static layer 11 prevents the heating pipe from conducting electricity due to static electricity and causing accidents. The shockproof layer 12 absorbs energy in the event of a collision and also enhances the stability of the heating pipe. The polyurethane insulation layer 13 provides insulation effect for the heating pipe. The seamless steel pipe 14 is the main carrier of the heating pipe. The anti-corrosion layer 15 prevents the seamless steel pipe 14 from being corroded and rusted. The sterilization layer 16 plays a sterilization role in the pipe. The flow tester 17 can test the flow in the pipe and then compare it with the pre-input flow to obtain the energy consumed during the heating process.

[0027] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or basic features of the present invention. Therefore, no matter from which point of view, the embodiments should be regarded as exemplary and non-restrictive, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention, and any figure mark in the claims should not be regarded as limiting the claims involved.

Claims

1. A multi-layer heating pipe for urban heating, comprising a pipe body (1), characterized in that: A sleeve (2) is installed on the outer wall of one end of the tube body (1); A lower fixing buckle (5) is installed on the bottom outer wall of the tube body (1), a fixing plate (3) is installed on the bottom of the lower fixing buckle (5), four groups of fixing bolts (4) are installed on the top of the fixing plate (3), the lower fixing buckle (5) is located between the four groups of fixing bolts (4), two groups of connecting plates (8) are installed on one side of the lower fixing buckle (5), an upper fixing buckle (6) is installed on the top outer wall of the tube body (1), the upper fixing buckle (6) and the lower fixing buckle (5) are connected via the connecting plate (8), anti-slip pads (7) are installed on the inner walls of the upper fixing buckle (6) and the lower fixing buckle (5), a flow tester (17) is installed on the top of the sleeve (2), and a high-density polyethylene protective layer (9) is installed on the inner wall of the tube body (1).

2. A multi-layer heating pipe for urban heating according to claim 1, characterized in that: The inner wall of the high-density polyethylene protective layer (9) is provided with a reinforcement layer (10).

3. A multi-layer heating pipe for urban heating according to claim 2, characterized in that: An antistatic layer (11) is installed on the inner wall of the reinforcement layer (10).

4. A multi-layer heating pipe for urban heating according to claim 3, characterized in that: The inner wall of the antistatic layer (11) is provided with a shockproof layer (12).

5. A multi-layer heating pipe for urban heating according to claim 4, characterized in that: The inner wall of the shockproof layer (12) is provided with a polyurethane heat-insulating layer (13).

6. A multi-layer heating pipe for urban heating according to claim 5, characterized in that: A seamless steel pipe (14) is installed on the inner wall of the polyurethane thermal insulation layer (13).

7. A multi-layer heating pipe for urban heating according to claim 6, characterized in that: The inner wall of the seamless steel pipe (14) is provided with an anti-corrosion layer (15), and the inner wall of the anti-corrosion layer (15) is provided with a sterilization layer (16).

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