钢坯加热设备

序号	内容			数量	备注
1	12脉整流变压器1500KVA			1台
2	连接铜排
2	晶闸管中频电源KGPS-1500/1			2套

3	感应加热器			1套
	3.1	GTR130(钢坯尺寸130x130mm12m)		1套
		GTR150(钢坯尺寸150x150mm12m)
4	感应加热器床身			1套
5	进料装置			1套
6	出料装置			1套
7	动力控制柜			1套
8	温控系统(红外线测温和控制仪)			1套
	8.1		PLC中央控制台	1套
	8.2		可编程控制器	1套
	8.3		液晶屏	1套
	8.4		双比色红外测温仪（西安瑞光）	1台
	8.5		光电报警开关	1套
	8.6		控制柜	1台

A、综合参数
序号	项目	参数要求
1	电源功率	1500kw / 3相6脉
2	整流项数	12脉
3	逆变器	SCR并联逆变
4	额定频率	1000Hz以上
5	进线电压	660V
6	中频电压	1600V
7	启动成功率	100%
8	功率因数	大于0.92
9	出口加热温度	1150℃
10	加热温升电耗	≤60±5% kW.h/t
11	加热时间	145秒/根

B、热交换冷却水系统参数
序号	项目	参数
1	进水压力	0.2-0.4MPa
2	进水温度	5-35℃
3	出水温度	<55℃

整流变压器是为中频电炉提供整流电源的专用变压器，该变压器（全紫铜芯油浸式）具有过载能力强，谐波电流少，冷却效果好等特点。

整流变压器技术参数：

型号：	超负荷型ZS11-1500KVA/10KV/660v
额定容量：	Se=1500kva
一次电压：	U1=10000V±5% 6相 12脉 50HZ
一次电流：	I1=86A
二次电压：	U2= 660Vx2
二次电流：	I2=650x2A
调压方式：	三档无励磁手动调压
联结组别：	D/d。-yn11
阻抗电压：	Z75o=6.5%
效率：	≥97%

1500kw 中频电源主要元器件型号及厂家

序号	名称	规格型号	数量		生产厂家
1	整流可控硅	KP1000A，2000V	12		湖北襄樊台基
2	万能断路器	DW15-1600A	2		浙江兆宇
3	可控硅散热器	SS14-BL	6		温州爱安特
4	吸收电容	0.47uF2000V	12		国营794厂
5	吸收电阻	150W15Ω	12		苏州恒德电讯
6	平波电抗器	3mH	2		自制
7	进线电抗器	Φ100*16	6		自制
8	仪表	42型	6		人民电器，上海浦江
9	铜材				洛铜
10	逆变可控硅	KK2000A，2000V		8		湖北襄樊台基
11	可控硅散热器	SS15-BL		4		温州爱安特
12	逆变吸收电容	0.47uF2000V		8		国营794厂
13	逆变吸收电阻	300W15Ω		8		苏州恒德电讯
14	谐振电容器	RFM1.2-2000-0.5S		10		浙江建的盛和
15	液压站					山西榆次

First, billet heating furnace, billet induction heating furnace, billet heating equipment overview

PLC automatic control system, domestic assembly, world-class technology, localized service, lowest price

1. The integrated design of the feeding and discharging mechanism, coil and power supply requires less infrastructure, workshop occupation and installation time.

2. Parallel intermediate frequency power supply design, AC voltage is converted into DC voltage by diode, and energy conversion efficiency is 96%.

3. The output power can be adjusted between 10% and 100%. All power ranges can maintain 0.96 power factor, and harmonic distortion is less polluted.

4, due to the short transmission distance of the power supply, the use of special insulation materials, series-connected power supply inverter measurement current small voltage high, medium frequency single consumption is very low.

5. Dynamically monitor the change of the load current of the series resonant coil, and timely control the output power of the power supply to ensure the heating temperature is stable.

6, other rich detection, self-diagnosis, alarm function and safety protection device.

7, the import of key components, the use of high-quality electrical components, domestic assembly; world-class technology, localization services and prices.

8. According to the size of the blank, different heating frequency is selected to save power consumption; the coil is adapted to the diameter of the billet to be 1 times wider.

9. The embedded operation panel displays the running status of the machine and is used for fault diagnosis; manual or man-machine interface operation mode can be selected.

10, standard power supply built-in closed internal circulation distilled water cooling system, you can choose the inner water system of the coil or provide a complete set of water cooling solutions.

11. The pneumatic or variable frequency nip roller feeding mechanism can be selected; the quick extraction and discharging system can eliminate the bonding mechanism and can be equipped with a temperature sorting system.

Second , billet parameters and process requirements

2.1、Billet size 130x130 mm , 12 m , Billet head temperature: surface 940 °C – core 1030 °C – average 960 °C

2.2、 Billet tail temperature: Surface 925 °C – Core 985 °C – Average 938 °C

2.3、 Elapsed time from start to finish: 109 s – speed 0.11 m/s – output 51.5 t/h

2.4 150x150 mm 12 m

2.5、Billet head temperature: Surface 949 °C – Core 1065 °C – Average 975 °C

2.6、Billet tail temperature: Surface 933 °C – Core 1005 °C – Average 948 °C

2.7、 Elapsed time from start to finish: 145 s – speed 0.083 m/s – output 51.8 t/h

2.8、 The first mill is required to have the same temperature at the head and tail of the first mill, and the minimum working temperature is 1050 °C:

Third, Determination of the plane arrangement of the power frequency and power:

According to the maximum size of the billet 150x150 mm 12 m, the calculated frequency range is in the range of 1600 Hz to 600 Hz, and the frequency of the furnace is determined to be 1000 Hz.

Calculated according to the maximum billet 150x150 mm 12 m weight (2080 kg) and productivity (145 seconds / piece), the required heating power is up to 1500 kw, which can meet all billet heating and insulation.

Fourth, Device range and function description:

1. Equipment range is shown in the table below

Serial number	content		Quantity	Remarks
1	12-pulse rectifier transformer 1500 KVA		1 set
2	Connecting copper bars
2	Thyristor intermediate frequency power supply KGPS-1 5 00/1		2 sets

3	Induction heater		1 set
	3.1	GTR130 (slab size 130x130mm12m)	1 set
		GTR150 (slab size 150x150mm12m)
4	Induction heater bed		1 set
5	Feeding device		1 set
6	Discharge device		1 set
7	Power control cabinet		1 set
8	Temperature control system (infrared temperature measurement and control instrument)		1 set
	8.1	PLC center console	1 set
	8.2	Programmable Controllers	1 set
	8.3	LCD screen	1 set
	8.4	Double colorimetric infrared thermometer (Xi'an Ruiguang)	1 set
	8.5	Photoelectric alarm switch	1 set
	8.6	Control cabinet	1 set

A, comprehensive parameters
Serial number	project	Parameter requirement
1	Power supply	1 5 00kw / 3 phase 6 veins
2	Number of rectifiers	12 veins
3	Inverter	SCR parallel inverter
4	Rated frequency	Above 1000Hz
5	Line voltage	660V
6	IF voltage	1600V
7	Start success rate	100%
8	Power factor	Greater than 0.9 2
9	Outlet heating temperature	1150 ° C
10	Heating temperature rise power consumption	≤ 60 ±5% kW.h/t
11	heating time	145 seconds / root

B. Heat exchange cooling water system parameters
Serial number	project	parameter
1	Inlet pressure	0.2-0.4MPa
2	Inlet temperature	5-35 ° C
3	Effluent temperature	<55°C

The rectifier transformer is a special transformer that provides rectification power for the intermediate frequency electric furnace. The transformer (full copper core oil immersion type) has the characteristics of strong overload capability, less harmonic current and good cooling effect.

Rectifier transformer technical parameters:

model:	Overload type ZS11- 1500 KVA/10KV /660v
Rated Capacity:	Se= 1500kva
Primary voltage:	U1=10000V±5% 6- phase 12-pulse 50HZ
Primary current:	I1= 86 A
Secondary voltage:	U2= 660Vx2
Secondary current:	I2= 650x2A
Pressure regulation method:	Three-speed manual non-excitation regulator
Connection group:	D/d. -yn11
Impedance voltage:	Z75o=6.5%
effectiveness:	≥ 97%

1500kw intermediate frequency power supply main components and manufacturers

Serial number	name	Specification model	Quantity	Manufacturer
1	Rectifier thyristor	KP 1000 A, 20 00V	12	Hubei Xiangfan Taiji
2	Universal circuit breaker	DW15- 1600 A	2	Zhejiang Zhaoyu
3	Thyristor radiator	SS14-BL	6	Wenzhou Love
4	Absorption capacitor	0.47uF2000V	12	State-owned 794 factory
5	Absorption resistor	150W15Ω	12	Suzhou Hengde Telecommunications
6	Flat wave reactor	3mH	2	self made
7	Line reactor	Φ100*16	6	self made
8	meter	Type 42	6	People's Electric, Shanghai Pujiang
9	Copper			Copper
10	Inverter thyristor	KK 2000 A, 2 0 00V	8	Hubei Xiangfan Taiji
11	Thyristor radiator	SS15-BL	4	Wenzhou Love
12	Inverter absorption capacitor	0.47uF2000V	8	State-owned 794 factory
13	Inverter absorption resistor	300W15Ω	8	Suzhou Hengde Telecommunications
14	Resonant capacitor	RFM 1.2 - 2 000- 0.5 S	10	Shenghe of Zhejiang Construction
15	Hydraulic station			Shanxi Yuci