CN206553473U - Ou Yelu diffuses safely by-pass collar - Google Patents

Abstract

By-pass collar is diffused safely the utility model discloses a kind of Ou Ye stoves, including gasification furnace, a bypass heat-resistant tube that pipe line compensating device is housed is horizontally connected with gasification furnace sidewall, resistance to thermal valve, nitrogen purging pressurizer, pressure-detecting device, bend pipe and bypass exhaust stack are sequentially arranged with bypass heat-resistant tube, bypass exhaust stack bottom sets inspection ash removing opening, bypass exhaust stack top, which sets to set on hydraulic pressure quick-opening device, bypass exhaust stack side wall, diffuses pressure relief device.The utility model can make up COREX stove gasification furnaces diffuse can not sealed defect, prevent the leakage of coal gas, prevent the generation of coal gas accident, it is ensured that safety in production, while this device also has resistant to elevated temperatures function.

Description

Ouyeel Furnace Safety Release Bypass Device

technical field

The utility model relates to a gas release system, in particular to a safety release bypass device for Ouyeel furnace.

Background technique

The predecessor of Ouye Furnace is COREX Furnace. As the most advanced COREX in the world, after being relocated from Baosteel Luojing to Bayi Iron and Steel Co., Ltd., after a series of technological transformations, it has its own technological characteristics, so the COREX Furnace was renamed Ouyeel Furnace. COREX furnace gas system can be roughly divided into 5 subsystems: generating gas, reducing gas, cooling gas, excess gas, and furnace top gas system. Among them, the raw gas produced by the gasifier is called the produced gas, and the temperature is between 980°C and 1100°C. This high-temperature gas needs to be released during the maintenance and failure of the Ouyeel furnace. Because the temperature of the gas generated by the gasifier is relatively high, For the COREX furnace, the relief valve is baked and eroded by high-temperature gas during use, which causes the relief valve to deform and cannot be sealed tightly, thereby losing its function and affecting safe production. The COREX gasifier has the following disadvantages: 1) It cannot withstand the baking and erosion of high-temperature gas. 2) The failure rate is high. 3) Affect safe production.

Contents of the invention

The purpose of this utility model is to provide a safety release bypass device for Ouyeel furnace, which can make up for the defect that the gasification furnace of COREX furnace cannot be sealed, prevent the leakage of gas, prevent the occurrence of gas accidents, and ensure safe production. High temperature function.

The technical scheme adopted by the utility model to solve the technical problem is: a safety release bypass device for Ouyeel furnace, including a gasifier, and a bypass heat-resistant pipe equipped with a pipeline compensation device is horizontally connected to the side wall of the gasifier , the bypass heat-resistant pipe is equipped with a heat-resistant valve, a nitrogen purge and pressure-holding device, a pressure detection device, an elbow pipe, and a bypass release pipe in sequence. A hydraulic quick-opening device is provided, and a release pressure relief device is provided on the side wall of the bypass release pipe.

This device includes a pipeline compensation device, which acts to prevent the pipeline from cracking after being heated. The bypass heat-resistant pipe is connected with the original discharge pipe of the gasifier, and is welded firmly. The inner part of the bypass heat-resistant pipe is poured with refractory materials. The valve is hydraulically driven and water-cooled to prevent burning due to high gas temperature. The top pressure of the Ouyeel gasifier is set at 0.35-0.4MPa during normal production. Since the heat-resistant valve does not have a tight sealing function, but can withstand higher pressure, part of the gas leaks to the back end of the heat-resistant valve, which requires Hydraulic quick opening device for secondary sealing. The interior of the hydraulic quick-opening device is sprayed with refractory materials, and at the same time it is cooled by nitrogen gas during use to ensure the safe and reliable opening and closing of the hydraulic quick-opening device. A nitrogen purge and pressure holding device and a pressure detection device are installed between the hydraulic quick opening device and the heat-resistant valve. Gas pressure between thermal valves.

Ouyeel’s gasifier does not turn on the originally designed gasifier for safe release when the gas is released. Instead, it turns on the release and pressure relief device in turn to observe the pressure drop of the pressure detection device, then turns on the hydraulic quick-opening device, and finally opens the heat-resistant valve. During the 69-day trial production stage of the Ouyeel gasifier safety gas release device, during maintenance and failure shutdown, the gasifier safety gas release device can be safely opened and closed, successfully completing the release and sealing of high-temperature gas, and passed the trial production , this gasifier safety gas release device can fully meet the gas treatment needs of Ouyeel furnace, completely eliminate the shortage of COREX gasifier release, and meet the production needs of Ouyeel furnace.

The utility model has a simple structure, can make up for the defect that the COREX furnace gasifier cannot be sealed due to the release, prevent gas leakage, prevent gas accidents, and ensure safe production. At the same time, the device also has the function of high temperature resistance.

Description of drawings

The utility model will be described in further detail below in conjunction with the accompanying drawings.

Fig. 1 is a front structural schematic diagram of the utility model.

detailed description

A safety release bypass device for Ouyeel furnace, as shown in Figure 1, includes a gasifier 1, a bypass heat-resistant pipe 3 equipped with a pipeline compensation device 2 is horizontally connected to the side wall of the gasifier 1, and the bypass resistance The heat pipe 3 is equipped with a heat-resistant valve 4, a nitrogen purge pressure maintaining device 6, a pressure detection device 7, an elbow pipe 8, and a bypass release pipe 9 in sequence. A hydraulic quick-opening device 11 is arranged on the top of the discharge pipe 9 , and a pressure relief device 12 is provided on the side wall of the bypass pipe 11 .

Claims (1)

1. a kind of Ou Ye stoves diffuse safely by-pass collar, including gasification furnace, it is characterized in that：One is horizontally connected with gasification furnace sidewall Root, which is equipped with the bypass heat-resistant tube of pipe line compensating device, bypass heat-resistant tube, is sequentially arranged with resistance to thermal valve, nitrogen purging pressurizer, pressure Force checking device, bend pipe and bypass exhaust stack, bypass exhaust stack bottom set inspection ash removing opening, and bypass exhaust stack top is set Put to set on hydraulic pressure quick-opening device, bypass exhaust stack side wall and diffuse pressure relief device.