Penyelesaian Pembinaan CPVC untuk Perlindungan Kabel Tiub Kuasa: Persekitaran Suhu Tinggi dan Rawatan Pengedap

2025-08-18


CPVC Paip kuasa sebagai bahan penting untuk perlindungan kabel dalam persekitaran suhu tinggi, kualiti pembinaannya secara langsung berkaitan dengan operasi sistem kuasa yang selamat dan stabil. Digabungkan dengan amalan kejuruteraan, kertas kerja ini menerangkan teknologi utama pembinaan paip kuasa CPVC dalam persekitaran suhu tinggi daripada tiga dimensi: prarawatan bahan, proses pemasangan, dan perlindungan pengedap.

1, titik teknikal pembinaan persekitaran suhu tinggi

CPVC Proses prarawatan bahan

Paip CPVC perlu diuji prestasi suhu tinggi sebelum memasuki tapak untuk memastikan suhu pelembutan Vica 93 ° C, dan kekuatan tegangan 60MPa. Semasa pembinaan musim panas, paip harus disimpan di tempat yang sejuk dan berventilasi, untuk mengelakkan cahaya matahari langsung daripada menyebabkan suhu badan paip melebihi 40 ° C. Operasi pemotongan perlu dilakukan apabila suhu ambien lebih rendah daripada 35 ° C, hirisan perlu dirawat dengan penyemperitan khas untuk memastikan sudut cerun 305 dan kekasaran permukaan. 61737373737373701μm. Penggalian parit dan rawatan substrat

Penggalian parit hendaklah menggunakan kaedah pembinaan bersegmen di bawah persekitaran suhu tinggi, panjang setiap bahagian dikawal dalam lingkungan 50 meter, dan sokongan cerun disediakan apabila kedalaman penggalian melebihi 2 meter. Rawatan substrat diisi semula dengan pasir dan kerikil penggredan, darjah pemadatan berlapis ialah 93%, kusyen pasir sederhana tebal 200mm dipasang, penggetar plat digunakan untuk menumbuk padat, dan ralat kerataan permukaan ialah 5mm / 2m.

3. Proses pemasangan saluran paip

perlu memanaskan tiub sebelum meletakkan proses, dan suhu badan tiub dikawal pada 25-30 ° C. Apabila dipasang dengan kaedah daya tarikan mekanikal, daya tarikan hendaklah 15kN, dan kelajuan cengkaman hendaklah dikekalkan pada 0.8m / min untuk pendorongan seragam. Lapisan penampan elastik disediakan pada antara muka saluran paip, gasket getah butil digunakan untuk pengedap, dan jurang antara muka dikawal pada 1.5-2 mm, sisihan paksi 10mm / 10m.

II, skim khas untuk pemprosesan pengedap

1. Proses pengedap antara muka soket

menggunakan struktur pengedap komposit "cincin pengedap berganda + pengedap elastik": cincin pengedap pertama diperbuat daripada getah etilena propilena ternary, kekerasan Shore 705HA, mampatan dikawal pada 35% -40%; cincin pengedap saluran kedua menggunakan getah yang mengembang dengan air, kadar pengembangan 300%. Bahagian dalam antara muka disapu sekata dengan pengedap suhu tinggi, ketebalan lapisan getah 1.2-1 5mm, dan masa pengeringan 30min. 11774009812. Proses pengedap sambungan lubang telaga

Selongsong kerja kabel dan sambungan paip disediakan dengan selongsong kalis air yang fleksibel, dan celah selongsong dan paip diisi dengan buih poliuretana, dan ketumpatan 60kg / m ³. Lapisan kalis air poliurea tebal 2mm dicat pada bahagian luar dinding telaga, pemanjangan 300%, dan lekatan 5MPa. Kepala telaga dimeterai dengan penutup lurang besi tuang, gelang pengedap air getah butyronitril terbina dalam, dan mampatan dikawal pada 25% 3%.

3. Langkah pengedap tapak khas

menggunakan jaket pelindung MPP yang dikuatkan untuk merentasi bahagian jalan, bulu batu kalis api diisi antara selongsong dan tiub CPVC, ketumpatan 120kg / m ³, palam getah pengedap kalis api digunakan pada kedua-dua hujung, dan kadar pengembangan 250%. Peringkat bahu kalis air disediakan untuk perbezaan ketinggian, konkrit C25 digunakan untuk menuang, cerun dikawal pada 5-8, salutan permukaan menembusi salutan kalis air kristal, ketebalan filem kering ialah 1.0mm.

III, kawalan kualiti dan langkah keselamatan

Titik kawalan kualiti hendaklah ditetapkan setiap 200 meter semasa proses pembinaan, item ujian termasuk: sisihan ketinggian saluran paip ialah 10mm, anjakan paksi ialah 30mm / 100m, tekanan ujian kedap antara muka ialah 0.6MPa, dan tekanan pegangan ialah 30min tanpa penurunan tekanan. Tempoh operasi suhu tinggi harus dielakkan dari 11: 00-15: 00, tapak pembinaan dilengkapi dengan pengudaraan paksa, dan operasi luar perlu dihentikan apabila suhu persekitaran melebihi 38 ° C.

Skim ini boleh menyelesaikan masalah pembinaan paip kuasa CPVC dengan berkesan dalam persekitaran suhu tinggi melalui pemilihan bahan saintifik, proses pembinaan yang diperhalusi dan sistem perlindungan berbilang meterai. Selepas pengesahan kejuruteraan, sistem perlindungan kabel yang dibina dengan skim ini boleh menjamin 50 tahun tanpa kebocoran dalam persekitaran 80 ° C, rintangan penebat 1000MΩ · km, memberikan jaminan yang boleh dipercayai untuk operasi selamat kejuruteraan kuasa dalam persekitaran yang melampau. Keseluruhan proses pembinaan harus dilaksanakan dengan ketat "Kod Reka Bentuk Talian Kabel Kejuruteraan Kuasa" GB50217 dan "Peraturan Teknikal Kejuruteraan Paip Saliran Polietilena Terkubur" CJ143 piawaian berkaitan.

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