Performance and technical requirements of medium frequency heat treatment equipment for steel pipes

1. Realisasikan fungsi memberi makan, menyampaikan, memanaskan, pelindapkejutan, pembajaan dan penyejukan paip keluli lancar dengan pelbagai spesifikasi.

2. The highest temperature for normalizing and quenching of steel pipe is 1100℃, generally 850℃～980℃

3. Tempering temperature: 550℃～720℃

4. Suhu pemanasan paip keluli adalah seragam, dan perbezaan suhu maksimum antara bahagian berlainan paip keluli yang sama: pelindapkejutan ±10℃, pembajaan ±8℃, jejari ±5℃

5. Produk yang dipadamkan dan dibaja mematuhi piawaian AP1 dan piawaian perusahaan Anshan Besi dan Keluli.

1.3.2 Equipment parameters and technical requirements of Party B:

1. The quenching and normalizing power is 5000 kw, and the frequency is 1000～1500Hz

2. Kuasa pembajaan ialah 3500 kw, kekerapan ialah 1000～1500Hz

3. Suhu air masuk: 0～35℃

4. Suhu air keluar adalah kurang daripada 55 ℃

5. Tekanan air 0.2～0.3MPa

6. Air pressure 0.4Mpa

7. Gunakan persekitaran:

①Indoor installation: the equipment is well grounded, the grounding color is obviously different from the control line (the grounding color is yellow), its cross-sectional area>4mm2, grounding resistance≯4Ω

②The altitude does not exceed 1000 meters, otherwise the rated use value will be reduced.

③The on-site ambient temperature does not exceed +40℃, and the minimum temperature is -20℃

④The relative air temperature is 85%

⑤No violent vibration, no conductive dust, no corrosive gas and explosive gas

⑥The installation inclination is not more than 5 degrees

⑦Pasang di tempat yang mempunyai pengudaraan yang baik

⑧Keperluan grid kuasa:

a) 5000 kw+3500 kw intermediate frequency power supply, the distribution capacity is not less than 10200 kvA

b) Voltan grid hendaklah gelombang sinus, dan herotan harmonik tidak boleh melebihi 5%

c) Ketidakseimbangan antara voltan tiga fasa hendaklah kurang daripada ±5%

d) Julat turun naik berterusan voltan grid tidak melebihi ±10%, dan variasi frekuensi grid tidak melebihi ±2 (iaitu, ia hendaklah antara 49-51HZ)

e) The incoming cable of the intermediate frequency power supply adopts a three-phase four-wire system

f) Incoming cable specification: 1250 kw, 180mm2×3 (copper core) 1000 kw, 160mm2×3 (copper core)

h) JIKA voltan input kuasa: 380V

i) Bekalan kuasa peralatan tambahan ≤ 366 kw

g) Auxiliary equipment power supply voltage 380V±10%

1.3.3. Penunjuk teknikal utama sistem penyejukan air:

1.3.3.1. The medium frequency induction heating power supply, water-cooled cable and capacitor cabinet adopt FL500PB, and the wind-water exchanger is used for cooling.

1.3.3.2. The heating furnace adopts clean circulating water for cooling.

1.3.3.3. The quenching liquid is cooled by a pool and a cooling tower.

1.3.3.4. Isipadu air tambahan bagi kolam cecair pelindapkejutan ialah 1.5-2M3/j.