CN203104829U

CN203104829U - Electromagnetic heating device adopted on plastic pipe production line

Info

Publication number: CN203104829U
Application number: CN 201220730860
Authority: CN
Inventors: 邹贵美; 邹贵田
Original assignee: FUJIAN XIANGLONG PLASTIC Co Ltd
Current assignee: FUJIAN XIANGLONG PLASTIC Co Ltd
Priority date: 2012-12-27
Filing date: 2012-12-27
Publication date: 2013-07-31
Anticipated expiration: 2022-12-27

Abstract

The utility model discloses an electromagnetic heating device adopted on a plastic pipe production line, which is structurally characterized by comprising an electromagnetic heating control panel circuit and an electromagnetic coil. The electromagnetic coil is wrapped on a heating element to be heated on a pipe profile extrusion line and is connected with the electromagnetic heating control panel circuit. Due to the adoption of the electromagnetic heating technology, the heat loss is reduced, so that the thermal efficiency of the device is high. Meanwhile, the temperature of the ambient environment is reduced and the production is safer and more energy-saving.

Description

The electromagnetic heater of plastic tube product line

Technical field

The utility model relates to the electric heater unit of pipe production line, especially the electromagnetic heater of plastic tube product line.

Background technology

In the prior art, the resistance heating mode is all adopted in the heating of plastic tube product line, be by resistance wire on parts such as the barrel of extruder, head, mouthful mould, enlarging, adopt the heating of resistance wire heating collar.The inboard parcel of heating collar extruder barrel passes to heat on the heated object by the contact conduction.This mode of heating makes the inside and outside two-sided heating of circle, and the heat conduction of its inner face (being close to the barrel part) is to barrel, and the heat major part of outside is lost in the air, and one causes the loss and waste of electric energy; Its two, ambient temperature is raise, especially summer very big to the production environment influence, the work on the spot ambient temperature has all surpassed 45 ℃, some enterprise has to adopt air-conditioning to reduce temperature, this causes the secondary waste of the energy again; Its three owing to adopt the resistance wire heating, its heating-up temperature up to 300 ℃ about, resistance wire blows because of high temperature ageing easily, therefore, the workload of maintenance is relatively large about about half a year useful life for electric heating coil commonly used.

The utility model content

The purpose of this utility model is to overcome the weak point that adopts the resistance wire heating technique to exist in the existing pipe production line, and a kind of electromagnetic heater of plastic tube product line is provided.

The utility model is realized by following approach.

The electromagnetic heater of plastic pipe extruding production line comprises that electromagnetism adds thermal control plate circuit, solenoid and heat-insulation and heat-preservation material and forms.Solenoid is wrapped on the parts that need to heat on the tubing extruding production line, adds the control board circuit with electromagnetism and is connected.

Described electromagnetism adds the thermal control plate circuit by bridge rectifier, electric capacity, inductor, IGBT switch module are formed, electromagnetism add the thermal control plate circuit with industrial frequency AC electric rectification, filtering, be reverse into high-frequency alternating current.

Former machine is subjected to temperature controlled power supply to add the thermal output contactor to add the thermal control plate circuit through electromagnetism, the power frequency 50HZ alternating current bridge rectifier of flowing through is rectified into direct current, flow through again electric capacity, inductor carries out filtering, the IGBT switch module of flowing through carries out inversion, be reverse into 16～30KHZ high frequency unsteady flow electric current, the one chip microcomputer control system of flowing through, again through the phase-locked control of power modulators, obtain required high frequency power electric current, the high frequency power electric current flow to solenoid and makes calandria generation eddy current cause the calandria self-heating.

The utility model also comprises thermocouple RDO, thermostat WK, switch module IGBT, voltage-stabilizing protection DZ, current-limiting resistance R, heat insulation temperature controller GWK, the temperature-control circuit that current limliting circle CT forms.Export by temperature sensor regulating and controlling electric current.

Also has one deck heat-insulation and heat-preservation material between solenoid and calandria.

At calandria outer wrap heat-insulation and heat-preservation material, significantly reduce thermal loss, significantly improve the heat efficiency.

The beneficial effects of the utility model are, overcome and adopt in the existing plastic tube product line that there is the spoilage height in the resistance wire heating technique, the life-span is short, ambient temperature is high, scald accident and the start long shortcomings such as production efficiency, electric heating power consumption that influence warm-up time easily take place, adopt electromagnetic heating technique, reduced scattering and disappearing of heat, heat efficiency height reduces ambient temperature, produce safer, more energy-conservation.

Description of drawings

Fig. 1 is the utility model operation principle process schematic diagram.

Embodiment

The utility model is described in further detail below in conjunction with accompanying drawing.

As shown in Figure 1, electromagnetic heater is made up of two parts: electromagnetism adds thermal control plate circuit and electromagnetic heating coil DCQ.Electromagnetic heating coil is wrapped on the extruder barrel JCT; The control circuit that electromagnetism adds thermal control plate is rectified into direct current with the power frequency 50HZ alternating current bridge rectifier of flowing through, the capacitor C of flowing through again 1, C2, C3, inductor L1 carry out filtering, the IGBT switch module of flowing through carries out inversion, be reverse into 16～30KHZ high frequency unsteady flow electric current, the one chip microcomputer control system of flowing through is again through the phase-locked control of power modulators, obtain the power demand electric current, flow to solenoid, high-frequency alternating current sees through insulation material and acts on barrel, makes barrel heating itself.

The electromagnetism heating control circuit also comprises the temperature height of thermocouple JCT induction extruder barrel, by thermostat WK, and voltage-stabilizing protection DZ, current-limiting resistance R, heat insulation temperature control GWK and the output of current limliting circle CT Control current, thus the control electromagnetism adds the thermal control plate soft start.

Claims

1. the electromagnetic heater of plastic tube product line is characterized in that, adds the thermal control plate circuit by electromagnetism, and solenoid (DCQ) is formed, and solenoid is wrapped on the calandria that needs to heat on the tubing extruding production line, adds the thermal control plate circuit with electromagnetism and is connected.

2. the electromagnetic heater of plastic tube product line according to claim 1, it is characterized in that, described electromagnetism adds the thermal control plate circuit by bridge rectifier, electric capacity (C1, C2, C3), inductor (L1), switch module (IGBT) is formed, electromagnetism add the thermal control plate circuit with industrial frequency AC electric rectification, filtering, be reverse into high-frequency alternating current.

3. the electromagnetic heater of plastic tube product line according to claim 1; it is characterized in that; also comprise thermocouple (RDO); thermostat (WK); switch module (IGBT), voltage-stabilizing protection (DZ), current-limiting resistance (R); heat insulation temperature controller (GWK), the temperature-control circuit that current limliting circle (CT) is formed.

4. the electromagnetic heater of plastic tube product line according to claim 1 is characterized in that, also has one deck heat-insulation and heat-preservation material (GBC) between solenoid and calandria.