Design method of combined type multiple anti-freezing and water leakage monitoring water pipe

Abstract

The invention discloses a design method of a combined type multiple anti-freezing and water leakage monitoring water pipe, and belongs to the technical field of water pipe anti-freezing. Comprising the steps that a prefabricated fixing ring and a waterproof ring are installed on the outer side of a raw water pipe, so that the water pipe is fixed in an anti-freezing layer to form a separation layer, a prefabricated PVC sleeve and polyurethane foam plastic are combined to form the anti-freezing layer, a prefabricated EPS foam board heat preservation layer is assembled on the outer side of the anti-freezing layer, and finally the outer side of a foam board is wrapped with a tin foil adhesive tape to form a protection layer. And a water leakage monitoring pipe penetrates through a reserved hole position before installation of each layer. The invention realizes the purposes of low-cost sewer pipe anti-freezing and water leakage monitoring, reduces energy consumption and environmental influence, and has important significance and practical value for stable operation of a water supply system and improvement of living quality of residents.

Description

Technical Field

[0001] The invention relates to the technical field of water pipe antifreeze, and in particular to a design method for a combined multi-antifreeze and water leakage monitoring water pipe. Background Art

[0002] In cold areas, due to the low external ambient temperature, ice is prone to form inside water pipes, which will not only lead to water supply interruptions, but may also cause serious pipe damage and property losses. The only common antifreeze measure for pipes is to wrap them with insulation. However, the external insulation layer often has poor durability. After being exposed to the sun and rain, the insulation performance is greatly reduced and ice cannot be completely avoided. There is currently a lack of low-cost, simple and effective antifreeze measures for water pipes.

[0003] At present, there are some methods for antifreeze measures for water pipes. For example, the patent with application number CN 202210527810.7 discloses an antifreeze water pipe. The invention can better achieve the purpose of antifreeze of water pipes by combining resistance wire heating and vibration hammer on the outside of the water pipe. However, this method has extremely high requirements on circuit stability and durability, and if the water pipe itself ruptures, it will cause huge safety and economic losses; the patent with application number CN 202123021724.9 discloses a multi-layer thermal insulation antifreeze water pipe. The utility model installs electric heating wires and temperature sensors on the outside of the internal water pipe, and continues to wrap it with aeroponic felt, insulation layer and anti-aging cloth. It has high thermal insulation and antifreeze performance, but the installation cost is high, and it needs to be continuously powered on for operation, and its actual application promotion is general.

[0004] In view of the above problems, the present invention proposes a design method for a combined multiple antifreeze and water leakage monitoring water pipe. This structural design does not rely on external heating, but can achieve the purpose of thermal insulation, antifreeze and water leakage warning through the reasonable design of the structural layer. The splicing installation method is also simpler and the material cost is lower. Summary of the invention

[0005] The purpose of the present invention is to provide a design method for a combined multi-antifreeze and water leakage monitoring water pipe to solve the problems mentioned in the above background technology.

[0006] To achieve the above-mentioned purpose, the present invention provides a design method for a combined multiple antifreeze and water leakage monitoring water pipe, in which a fixing ring and a water-isolating ring are installed on the outside of the raw water pipe, an antifreeze layer is arranged on the outside of the fixing ring and the water-isolating ring, an EPS foam board insulation layer is installed on the outside of the antifreeze layer, and a tin foil tape is wrapped on the outside of the insulation layer to form a protective layer; each layer has reserved holes for inserting a water leakage monitoring pipe, and the joints are fixed with glue.

[0007] Preferably, the fixing ring is composed of two hollow semicircular rings, which are fixed to the raw water pipe by means of end-to-end buckle splicing, and are distributed at intervals of 1-2m along the direction of the raw water pipe. The semicircular rings are made of metal or hard plastic.

[0008] Preferably, the water-isolating ring is composed of two solid semicircular rings, which are fixed to the raw water pipe by means of end-to-end snap-jointing, and are distributed at intervals of 1-2 m along the raw water pipe. The semicircular rings are made of elastic rubber or hard plastic.

[0009] Preferably, the fixing ring and the water-isolating ring have the same size, the inner diameter of the fixing ring and the water-isolating ring is equal to the outer diameter d1 of the raw water pipe, the outer diameter d2 of the fixing ring and the water-isolating ring is larger than the inner diameter d13-5cm, and the thickness is 2-4cm.

[0010] Preferably, the antifreeze layer is composed of an inner PVC sleeve and a thermal insulation material bonded to the outside of the PVC sleeve, the inner diameter of the antifreeze layer is equal to the outer diameter d2 of the fixing ring and the waterproof ring, and the thickness of the antifreeze layer is 4-7 cm.

[0011] Preferably, the PVC sleeve is composed of two semicircular rings and is fixed by connecting ribs with corresponding buckles on the inner tube walls of the semicircular rings.

[0012] Preferably, the thermal insulation material is one of polyurethane foam, sponge and polyethylene.

[0013] Preferably, the EPS foam board insulation layer is a hollow cylinder with a wavy hollow in the middle, and is composed of two EPS foam boards spliced ​​together, and the seams are fixed with double-sided tape.

[0014] Preferably, the EPS foam board insulation layer has a length of 1.2-2m and a thickness of 3-5cm. The inner diameter within a length range of 5-10cm at both ends is equal to the outer diameter d3 of the antifreeze layer, and the maximum thickness of the hollow middle portion is 2-3cm.

[0015] Preferably, the water leakage monitoring tube is a plastic hose, which is distributed 1-2 cm above the water isolation ring, has an inner diameter of 6-12 mm, and a thickness of 5-6 mm.

[0016] Therefore, the present invention adopts the above-mentioned design method of a combined multi-antifreeze and water leakage monitoring water pipe, and the specific beneficial effects are as follows:

[0017] (1) The present invention achieves the purpose of low-cost insulation and antifreeze of sewer pipes by cooperating with each other through the antifreeze layer, the thermal insulation layer, the protective layer and the two air-insulating layers, and at the same time has good durability and has good application prospects.

[0018] (2) In the present invention, each structural layer is connected by snap-fitting, and each structural layer can be prefabricated, which has the advantages of easy installation and light structure.

[0019] (3) The prefabricated EPS foam board insulation layer is hollowed out in the middle, which provides stable protection while significantly saving materials.

[0020] (4) Each section of the water pipe is equipped with a leakage monitoring pipe near the water riser. When the internal water pipe ruptures and leaks, the water can flow out of the leakage monitoring pipe, thereby achieving the purpose of timely and accurate monitoring of the faulty water pipe, greatly saving maintenance time and cost.

[0021] (5) The invention can effectively improve the problem of water pipe freezing and cracking, has excellent thermal insulation and antifreeze effects, is suitable for cold areas, and also has good shock absorption, pressure resistance, and sound insulation properties.

[0022] The technical solution of the present invention is further described in detail below through the accompanying drawings and embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 is a longitudinal cross-sectional view of a water pipe designed by the design method of the present invention;

[0024] Figure 2 is a transverse cross-sectional view of a water pipe designed by the design method of the present invention;

[0025] Figure 3 It is a schematic diagram of the buckle splicing of the fixing ring and the water-isolating ring in the design method of the present invention;

[0026] Figure 4 It is a schematic diagram of the buckle splicing of the edge of the PVC sleeve and the EPS foam board in the design method of the present invention;

[0027] Reference numerals

[0028] 1. Raw water pipe; 2. Fixing ring; 3. Water-isolating ring; 4. Air-isolating layer; 5. PVC casing; 6. Thermal insulation material; 7. EPS foam board insulation layer; 8. Tin foil tape protective layer; 9. Water leakage monitoring pipe. DETAILED DESCRIPTION

[0029] like Figure 1-4 As shown, the present invention provides a design method for a combined multiple antifreeze and water leakage monitoring water pipe, wherein a fixing ring 2 and a water isolating ring 3 are installed on the outside of a raw water pipe 1, an antifreeze layer is arranged on the outside of the fixing ring 2 and the water isolating ring 3, the antifreeze layer is composed of an inner PVC casing 5 and a thermal insulation material 6 bonded to the outside of the PVC casing, an EPS foam board insulation layer 7 is assembled on the outside of the antifreeze layer, and a tin foil tape is wrapped on the outside of the insulation layer 7 to form a tin foil tape protective layer 8; each layer is reserved with a hole to insert a water leakage monitoring pipe 9, and the joints are fixed with glue.

[0030] In the present invention, the fixing ring 2 is composed of two hollow semicircular rings, which are fixed to the raw water pipe by means of head-to-tail snap-jointing; the water-isolating ring 3 is composed of two solid semicircular rings, which are fixed to the raw water pipe by means of head-to-tail snap-jointing; the PVC sleeve 5 is composed of two semicircular rings, which are fixed by connecting ribs with corresponding snaps on the inner wall of the semicircular rings; the EPS foam board insulation layer 7 is a hollow cylinder with a wavy hollow in the middle, which is composed of two EPS foam boards spliced ​​together, and the joints are fixed with double-sided tape.

[0031] The technical solution of the present invention is further described below through the accompanying drawings and embodiments.

[0032] Unless otherwise defined, the technical terms or scientific terms used in the present invention should be understood by people with ordinary skills in the field to which the present invention belongs. The words "first", "second" and similar words used in the present invention do not indicate any order, quantity or importance, but are only used to distinguish different components. "Include" or "comprise" and similar words mean that the elements or objects appearing before the word include the elements or objects listed after the word and their equivalents, without excluding other elements or objects. "Connect" or "connected" and similar words are not limited to physical or mechanical connections, but may include electrical connections, whether direct or indirect. "Up", "down", "left", "right" and the like are only used to indicate relative positional relationships. When the absolute position of the described object changes, the relative positional relationship may also change accordingly.

[0033] Embodiment 1

[0034] This embodiment provides a design method for a combined multi-antifreeze and water leakage monitoring water pipe, and the specific implementation method includes the following contents:

[0035] (1) The specification of the raw water pipe is DN20 water pipe, and the outer diameter d1 of the water pipe is 25mm;

[0036] (2) Prefabricated fixing rings and water-isolating rings are installed on the outside, with an inner diameter d1 of 25 mm, an outer diameter of 55 mm, and a thickness of 2 cm. They are fixed to the central water pipe by means of end-to-end snap-on splicing and are arranged at intervals of 1 m along the water pipe direction;

[0037] (3) The antifreeze layer is composed of a prefabricated PVC sleeve on the inside and a polyurethane foam plastic on the outside. The polyurethane foam plastic on the outside is bonded to the PVC sleeve in advance. The inner diameter d2 of the antifreeze layer is 55 mm, the outer diameter d3 is 105 mm, and the thickness is 50 mm, of which the thickness of the PVC sleeve is 5 mm and the thickness of the polyurethane foam plastic layer is 45 mm;

[0038] (4) The prefabricated EPS foam board insulation layer is uniform from top to bottom, with a hollow cylindrical shape with a wavy hollow in the middle. It is assembled by two prefabricated EPS foam boards, fixed at the joints with double-sided tape. The overall length is 2m, the inner diameter d3 within the length range of 5cm at both ends is 105mm, the middle of the board is hollowed out by 1cm, and the overall thickness is 3cm;

[0039] (5) The water leakage monitoring tube is made of a plastic hose with an inner diameter of 8 mm and a thickness of 5 mm. It is placed 1 cm above the water isolation ring. Before each layer is installed, a hole is reserved to insert the water leakage monitoring tube, and the joints are fixed with glue;

[0040] (6) Wrap the outside of the EPS foam board insulation layer and the joints with tin foil tape.

[0041] The water pipes prepared as above were subjected to a 15-hour freezing test at a freezing temperature of -10°C. The results showed that the water pipes were operating normally without freezing and without water leakage. There was no obvious frost damage or relative displacement in the structural layers, and no separation occurred at the connection parts.

[0042] Embodiment 2

[0043] This embodiment provides a design method for a combined multi-antifreeze and water leakage monitoring water pipe, and the specific implementation method includes the following contents:

[0044] (1) The specification of the raw water pipe is DN25 water pipe, and the outer diameter d1 of the water pipe is 32mm;

[0045] (2) Prefabricated fixing rings and water-isolating rings are installed on the outside, with an inner diameter d1 of 32 mm, an outer diameter of 75 mm, and a thickness of 2 cm. They are fixed to the central water pipe by means of end-to-end snap-on splicing and are arranged at intervals of 1 m along the direction of the water pipe;

[0046] (3) The antifreeze layer is composed of a prefabricated PVC sleeve on the inside and a polyurethane foam plastic on the outside. The polyurethane foam plastic on the outside is bonded to the PVC sleeve in advance. The inner diameter d2 of the antifreeze layer is 75 mm, the outer diameter d3 is 135 mm, and the thickness is 60 mm, of which the thickness of the PVC sleeve is 5 mm and the thickness of the polyurethane foam plastic layer is 55 mm;

[0047] (4) The prefabricated EPS foam board insulation layer is uniform from top to bottom, with a hollow cylindrical shape with a wavy hollow in the middle. It is assembled by two prefabricated EPS foam boards, fixed at the joints with double-sided tape. The overall length is 2m, the inner diameter d3 within the length range of 5cm at both ends is 135mm, the middle of the board is hollowed out by 2cm, and the overall thickness is 4cm;

[0048] (5) The water leakage monitoring tube is made of a plastic hose with an inner diameter of 8 mm and a thickness of 5 mm. It is placed 1 cm above the water isolation ring. Before each layer is installed, a hole is reserved to insert the water leakage monitoring tube, and the joints are fixed with glue;

[0049] (6) Wrap the outside of the EPS foam board insulation layer and the joints with tin foil tape.

[0050] The water pipes prepared as above were subjected to a 10-hour freezing test at a freezing temperature of -10°C. The results showed that the water pipes were operating normally without freezing and leakage, and there was no obvious frost damage or relative displacement in the structural layers, and no separation occurred at the connection parts.

[0051] Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention rather than to limit it. Although the present invention has been described in detail with reference to the preferred embodiments, those skilled in the art should understand that they can still modify or replace the technical solution of the present invention with equivalents, and these modifications or equivalent replacements cannot cause the modified technical solution to deviate from the spirit and scope of the technical solution of the present invention.

Claims

1. A design method for a combined multi-antifreeze and water leakage monitoring water pipe, characterized in that: A fixing ring and a water-isolating ring are installed on the outside of the raw water pipe, an antifreeze layer is set on the outside of the fixing ring and the water-isolating ring, an EPS foam board insulation layer is installed on the outside of the antifreeze layer, and tin foil tape is used to wrap the outside of the insulation layer to form a protective layer; each layer has reserved holes for inserting a leakage monitoring pipe, and the joints are fixed with glue.

2. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 1, characterized in that: The fixing ring is composed of two hollow semicircular rings, which are fixed on the raw water pipe by means of head-to-tail buckle splicing, and are distributed at intervals of 1-2m along the direction of the raw water pipe. The semicircular rings are made of metal or hard plastic.

3. According to claim 1, the design method of a combined multi-antifreeze and water leakage monitoring water pipe is characterized by: The water-isolating ring is composed of two solid semicircular rings, which are fixed on the raw water pipe by means of head-to-tail buckle splicing, and are distributed at intervals of 1-2m along the direction of the raw water pipe. The semicircular rings are made of elastic rubber or hard plastic.

4. According to claim 1, the design method of a combined multi-antifreeze and water leakage monitoring water pipe is characterized by: The fixed ring and the water-isolating ring have the same size, the inner diameter of the fixed ring and the water-isolating ring is equal to the outer diameter d1 of the raw water pipe, the outer diameter d2 of the fixed ring and the water-isolating ring is larger than the inner diameter d13-5cm, and the thickness is 2-4cm.

5. According to claim 4, a design method for a combined multi-antifreeze and water leakage monitoring water pipe is characterized in that: The antifreeze layer is composed of an inner PVC sleeve and a heat-insulating material bonded to the outer side of the PVC sleeve. The inner diameter of the antifreeze layer is equal to the outer diameter d2 of the fixing ring and the water-isolating ring. The thickness of the antifreeze layer is 4-7 cm.

6. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 5, characterized in that: The PVC sleeve is composed of two semicircular rings and is fixed by connecting ribs with corresponding buckles on the inner tube walls of the semicircular rings.

7. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 5, characterized in that: The thermal insulation material is one of polyurethane foam plastics, sponge and polyethylene.

8. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 1, characterized in that: The EPS foam board insulation layer is in the shape of a hollow cylinder with a wavy hollow in the middle, and is composed of two EPS foam boards spliced ​​together, and the joints are fixed with double-sided tape.

9. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 8, characterized in that: The EPS foam board insulation layer has a length of 1.2-2m and a thickness of 3-5cm. The inner diameter within a length range of 5-10cm at both ends is equal to the outer diameter d3 of the antifreeze layer, and the maximum thickness of the hollow middle portion is 2-3cm.

10. The design method of a combined multi-antifreeze and water leakage monitoring water pipe according to claim 1, characterized in that: The water leakage monitoring tube is a plastic hose, which is distributed 1-2 cm above the water isolation ring, has an inner diameter of 6-12 mm and a thickness of 5-6 mm.

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