CN202267369U - Automatic ventilation device of magnesium alloy melting furnace - Google Patents
Automatic ventilation device of magnesium alloy melting furnace Download PDFInfo
- Publication number
- CN202267369U CN202267369U CN2011203470284U CN201120347028U CN202267369U CN 202267369 U CN202267369 U CN 202267369U CN 2011203470284 U CN2011203470284 U CN 2011203470284U CN 201120347028 U CN201120347028 U CN 201120347028U CN 202267369 U CN202267369 U CN 202267369U
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- gas
- solenoid valve
- way solenoid
- magnesium alloy
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Abstract
The utility model discloses an automatic ventilation device for a magnesium alloy melting furnace, and aims to avoid the phenomenon of oxidative combustion of the surface of liquid magnesium alloy which is easily caused during the replacement of gas cylinders in the prior art. The automatic ventilation device is characterized in that: two nitrogen cylinders of the automatic ventilation device are communicated with a gas inlet port P and a gas inlet port B of a two-position three-way solenoid valve respectively; a gas outlet port A of the two-position three-way solenoid valve is connected with one end of a pressure detection switch through a gas pipe A, and the other end of the pressure detection switch is connected with a programmable logic controller (PLC) A; and the gas pipe A and a gas pipe B are communicated with a pipe port A and a pipe port B of a mixed-gas tank. A pressure regulating valve, a flowmeter A and a one-way valve are also arranged on the automatic ventilation device, wherein a pipe port C of the mixed-gas tank is communicated with a gas inlet port P of a two-position two-way solenoid valve; a gas outlet port A of the two-position two-way solenoid valve is communicated with the magnesium alloy melting furnace, and a flow meter B is arranged between the gas outlet port A of the two-position two-way solenoid valve and the magnesium alloy melting furnace; a PLC controller B is connected to the two-position two-way solenoid valve and is also connected with a temperature detector; and the temperature detector detects the temperature in the magnesium alloy melting furnace through a thermocouple. By adoption of the technical scheme, the automatic ventilation device is simple in structure, ensures continuous supply of nitrogen gas, and prevents magnesium alloy melt from being oxidized due to gas cylinder replacement in midcourse.
Description
Technical field
The utility model relates to the automatic air interchanger of a kind of magnesium-alloy smelting furnace
.
Background technology
Gas shield device is the indispensable part of magnesium alloy smelting, and the gas shield part is as shown in Figure 1, and it comprises tracheae, nitrogen cylinder, SF
6Gas cylinder, pressure detection switch, pressure regulator valve, flowmeter, mixing gas tank, ball valve.This gas shield gas circuit when the magnesium alloy melt temperature reaches uniform temperature, is opened AVSV Air Vent Solenoid Valve, adjustments of gas flow automatically, lets protective gas flow into magnesium-alloy smelting furnace through pipeline and forms the layer of protecting mould at molten surface, and protection magnesium liquid is not oxidized.But there is defective in this gas circuit: one bottle of nitrogen cylinder in actual use four hours with one bottle of gas, can not guarantee that a class can continue air feed, one bottle of nitrogen cylinder will be changed in the centre, changes the untimely meeting of gas cylinder and causes liquid magnesium alloy surface oxidizing fire phenomenon.
Summary of the invention
The purpose of the utility model is: provide a kind of magnesium-alloy smelting furnace automatic air interchanger, exist the replacing gas cylinder to be prone to cause liquid magnesium alloy surface oxidizing fire phenomenon to solve prior art.
Reach the purpose of the utility model, the technical scheme of taking is: the automatic air interchanger of a kind of magnesium-alloy smelting furnace comprises two nitrogen cylinders, a SF
6Gas cylinder, two-position three way magnetic valve, tracheae A, tracheae B, pressure detection switch, pressure regulator valve, flowmeter A, flowmeter B, check valve, gaseous mixture filling, two-position two-way solenoid valve, PLC controller A, PLC controller B, Temperature Detector and thermocouple; It is characterized in that: what two bottles of nitrogen cylinders of this device were communicated in two-position three way magnetic valve respectively goes into gas P mouth and B mouth; The two-position three way magnetic valve A mouth of giving vent to anger is connected in pressure detection switch one end through tracheae A; The pressure detection switch other end is connected A on the PLC controller; Tracheae A, tracheae B are communicated in gaseous mixture and irritate the A mouth of pipe, the gaseous mixture filling B mouth of pipe, also are provided with pressure regulator valve, flowmeter A and check valve on it; The gaseous mixture filling C mouth of pipe is gone into gas P mouth with two-position two-way solenoid valve and is communicated with; The two-position two-way solenoid valve A mouth of giving vent to anger is communicated in magnesium-alloy smelting furnace; Be provided with flowmeter B therebetween; Be connected with PLC controller B on the two-position two-way solenoid valve, PLC controller B links to each other with Temperature Detector, and Temperature Detector detects the temperature in the magnesium-alloy smelting furnace through thermocouple.
Adopt the utility model, detect under-voltage signal through PLC controller A after DC24V signal of output give two-position three way magnetic valve, connect another bottle nitrogen cylinder gas circuit nitrogen cylinder and import by the B mouth.Guaranteed that like this nitrogen continues air feed.Prevented that the magnesium alloy liquation is because of changing the gas cylinder oxidation midway.
The beneficial effect that the utility model reaches is: the utility model has reached simple in structure, guaranteed that nitrogen continues air feed and has prevented that the magnesium alloy liquation is because of changing the beneficial effect of gas cylinder oxidation midway.
Description of drawings
Fig. 1: the structural representation of the utility model.
The specific embodiment
Illustrate further the architectural feature of the utility model below in conjunction with accompanying drawing.
With reference to Fig. 1, the automatic air interchanger of a kind of magnesium-alloy smelting furnace comprises two nitrogen cylinders 1, a SF
6 Gas cylinder 2, two-position three way magnetic valve 3, tracheae A5, tracheae B6, pressure detection switch 7, pressure regulator valve 8, flowmeter A9, flowmeter B15, check valve 10, gaseous mixture filling 11, two-position two-way solenoid valve 14, PLC controller A4, PLC controller B12, Temperature Detector 13 and thermocouple 16; It is characterized in that: what two bottles of nitrogen cylinders of this device were communicated in two-position three way magnetic valve respectively goes into gas P mouth and B mouth; The two-position three way magnetic valve A mouth of giving vent to anger is connected in pressure detection switch 7 one ends through tracheae A3; The pressure detection switch other end is connected A4 on the PLC controller; Tracheae A5, tracheae B6 are communicated in gaseous mixture and irritate the A mouth of pipe 111, the gaseous mixture filling B mouth of pipe 112, also are provided with pressure regulator valve 8, flowmeter A9 and check valve 10 on it; The gaseous mixture filling C mouth of pipe 113 is gone into gas P mouth with two-position two-way solenoid valve 14 and is communicated with; The two-position two-way solenoid valve 14 A mouth of giving vent to anger is communicated in magnesium-alloy smelting furnace 17; Be provided with flowmeter B15 therebetween; Be connected with PLC controller B12 on the two-position two-way solenoid valve 14, PLC controller B12 links to each other with Temperature Detector 13, and Temperature Detector 13 detects the temperature of 17 li of magnesium-alloy smelting furnaces through thermocouple 16.
Claims (1)
1. the automatic air interchanger of magnesium-alloy smelting furnace comprises two nitrogen cylinders, a SF
6Gas cylinder, two-position three way magnetic valve, tracheae A, tracheae B, pressure detection switch, pressure regulator valve, flowmeter A, flowmeter B, check valve, gaseous mixture filling, two-position two-way solenoid valve, PLC controller A, PLC controller B, Temperature Detector and thermocouple; It is characterized in that: what two bottles of nitrogen cylinders of this device were communicated in two-position three way magnetic valve respectively goes into gas P mouth and B mouth; The two-position three way magnetic valve A mouth of giving vent to anger is connected in pressure detection switch one end through tracheae A; The pressure detection switch other end is connected A on the PLC controller; Tracheae A, tracheae B are communicated in gaseous mixture and irritate the A mouth of pipe, the gaseous mixture filling B mouth of pipe, also are provided with pressure regulator valve, flowmeter A and check valve on it; The gaseous mixture filling C mouth of pipe is gone into gas P mouth with two-position two-way solenoid valve and is communicated with; The two-position two-way solenoid valve A mouth of giving vent to anger is communicated in magnesium-alloy smelting furnace; Be provided with flowmeter B therebetween; Be connected with PLC controller B on the two-position two-way solenoid valve, PLC controller B links to each other with Temperature Detector, and Temperature Detector detects the temperature in the magnesium-alloy smelting furnace through thermocouple.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470284U CN202267369U (en) | 2011-09-16 | 2011-09-16 | Automatic ventilation device of magnesium alloy melting furnace |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011203470284U CN202267369U (en) | 2011-09-16 | 2011-09-16 | Automatic ventilation device of magnesium alloy melting furnace |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202267369U true CN202267369U (en) | 2012-06-06 |
Family
ID=46158162
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011203470284U Expired - Fee Related CN202267369U (en) | 2011-09-16 | 2011-09-16 | Automatic ventilation device of magnesium alloy melting furnace |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202267369U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104545040A (en) * | 2014-12-05 | 2015-04-29 | 安徽华盛科技控股股份有限公司 | CIT multifunctional gas cylinder cabinet |
| CN117587209A (en) * | 2024-01-16 | 2024-02-23 | 新江科技(江苏)有限公司 | Magnesium alloy casting heat treatment equipment |
| CN117587209B (en) * | 2024-01-16 | 2024-05-14 | 新江科技(江苏)有限公司 | Magnesium alloy casting heat treatment equipment |
-
2011
- 2011-09-16 CN CN2011203470284U patent/CN202267369U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104545040A (en) * | 2014-12-05 | 2015-04-29 | 安徽华盛科技控股股份有限公司 | CIT multifunctional gas cylinder cabinet |
| CN117587209A (en) * | 2024-01-16 | 2024-02-23 | 新江科技(江苏)有限公司 | Magnesium alloy casting heat treatment equipment |
| CN117587209B (en) * | 2024-01-16 | 2024-05-14 | 新江科技(江苏)有限公司 | Magnesium alloy casting heat treatment equipment |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120606 Termination date: 20120916 |
|
| DD01 | Delivery of document by public notice |
Addressee: Gong Chen Document name: Notification of Approving Refund |