An underground long-distance water delivery pipe for municipal engineering and its production process
A production process and long-distance technology, which is applied in the field of water pipes, can solve the problems of short service life, insufficient heat preservation performance, and weak impact resistance of pipes, and achieve the effects of energy saving, environmental protection, light weight, and strong antibacterial properties in the service life
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Embodiment 1
[0021] refer to figure 1 , an underground long-distance water delivery pipe for municipal engineering, comprising an inner casing 1, a buffer pipe 2 is arranged on the outside of the inner casing 1, an outer casing 3 is arranged on the outer side of the buffer pipe 2, and a hole is arranged on the outer casing 3 along the circumferential direction, An elastic metal wire 4 is arranged in the hole, and the inner casing 1 and the outer casing 3 are made of the same material.
[0022] The inner casing 1 and the outer casing 3 are made of the following raw materials in parts by weight: 50-95 parts of polyvinyl chloride resin, 6-15 parts of butyl rubber, 4-20 parts of nano-activated carbon fiber, and 3 parts of diethyl phthalate -8 parts, 7-10 parts of heat-expandable graphite, 9-15 parts of reinforcing fiber, 4-7 parts of silicon dioxide, 3-4 parts of compatibilizer, 1-8 parts of lubricant, 2-10 parts of antioxidant, Toughening agent 0.2-3.5 parts.
[0023] The reinforcing fiber ...
Embodiment 2
[0032] refer to figure 1 , an underground long-distance water delivery pipe for municipal engineering, comprising an inner casing 1, a buffer pipe 2 is arranged on the outside of the inner casing 1, an outer casing 3 is arranged on the outer side of the buffer pipe 2, and a hole is arranged on the outer casing 3 along the circumferential direction, An elastic metal wire 4 is arranged in the hole, and the inner casing 1 and the outer casing 3 are made of the same material.
[0033] The inner casing 1 and the outer casing 3 are made of the following raw materials in parts by weight: 70 parts of polyvinyl chloride resin, 8.5 parts of butyl rubber, 17 parts of nano-activated carbon fiber, 5.6 parts of diethyl phthalate, and 8 parts of thermally expandable graphite parts, 10 parts of reinforcing fiber, 5 parts of silica, 3 parts of compatibilizer, 4 parts of lubricant, 7 parts of antioxidant, and 0.26 parts of toughening agent.
[0034] The reinforcing fiber is one of Orlon fiber,...
Embodiment 3
[0043] refer to figure 1 , an underground long-distance water delivery pipe for municipal engineering, comprising an inner casing 1, a buffer pipe 2 is arranged on the outside of the inner casing 1, an outer casing 3 is arranged on the outer side of the buffer pipe 2, and a hole is arranged on the outer casing 3 along the circumferential direction, An elastic metal wire 4 is arranged in the hole, and the inner casing 1 and the outer casing 3 are made of the same material.
[0044] The inner casing 1 and the outer casing 3 are made of the following raw materials in parts by weight: 50 parts of polyvinyl chloride resin, 15 parts of butyl rubber, 4 parts of nano-activated carbon fiber, 8 parts of diethyl phthalate, and 10 parts of thermally expandable graphite parts, 9 parts of reinforcing fiber, 7 parts of silicon dioxide, 3 parts of compatibilizer, 8 parts of lubricant, 10 parts of antioxidant, and 3.5 parts of toughening agent.
[0045] The reinforcing fiber is one of Orlon f...
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