Efficient and energy-saving regenerative heating furnace

A high-efficiency energy-saving heating furnace technology, applied in the field of workpiece forging heating, can solve the problems of exhaust gas pollution, high energy consumption, etc., and achieve the effects of low noise, uniform temperature distribution, and huge energy-saving potential

Pending Publication Date: 2021-09-24
成都日进冶金锻造有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] The purpose of the present invention is to provide a high-efficiency and energy-saving regenerative heating furnace, in order to solve the problems of large ene

Method used

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  • Efficient and energy-saving regenerative heating furnace

Examples

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Effect test

Embodiment 1

[0032] Embodiment 1: A high-efficiency and energy-saving regenerative heating furnace, including a regenerator 1 and a burner 2 connected to the left and right ends of the regenerator 1 for preheating air and absorbing excess heat; it also includes A reversing valve 3, the reversing valve 3 communicates with the burner 2 with a connecting pipe 4, and the reversing valve 3 is also communicated with an intake pipe and an exhaust pipe; inside the first burner 2 and the second burner 2 All are equipped with heat accumulators.

[0033] The burner 2 is also communicated with a fuel channel for providing fuel oil or gas.

[0034] The regenerator 1 is provided with refractory asbestos mesh, refractory bricks, refractory pick fibers, and refractory steel plates in sequence from the inside to the outside, the air intake pipe is connected to a blower, and the regenerator is a honeycomb ceramic regenerator structure.

[0035] Working principle: After the normal temperature air is switche...

Embodiment example 2

[0036] Implementation Case 2: A heating method for a high-efficiency and energy-saving regenerative heating furnace, comprising the following steps:

[0037] Step 1: Preheat the air to a temperature above 1000°C, mix it with fuel and spray it into the furnace body.

[0038] The second step: form a temperature above 1200 ℃ in the heating furnace body to heat the workpiece;

[0039] Step 3: Use the waste heat generated after heating to absorb the excess heat through the heat storage body, and reciprocate part of the air through the reversing valve 3, and part of it is discharged into the atmosphere;

[0040] Part Four: Repeat the first step to the third step to enter the next cycle.

[0041] After the regenerator is heated, air is introduced, and the air is heated to a high temperature, and then sent into the burner to be mixed with fuel for combustion and heat storage combustion. The regenerators 1 must be in pairs, and one of them is used to heat the air. While the other is ...

Embodiment example 3

[0042]Implementation Case 3: It also includes a pressure channel for upward air supply arranged at the bottom of the regenerator 1, and the pressure channel is connected with a pressure pump for providing intake pressure, so that a downward air flow is formed in the furnace (regenerator 1). The circulation of wind suction from left to right makes the temperature distribution of the regenerator 1 more uniform.

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Abstract

The invention discloses an efficient and energy-saving regenerative heating furnace, belongs to the technical field of heating for workpiece forging, and aims to solve the problems that the energy consumption of an existing heating furnace is high and the pollution caused by waste gas is severe. The efficient and energy-saving regenerative heating furnace comprises a regenerative chamber and burners as well as further comprises a reversing valve, wherein the burners used for preheating air and absorbing redundant heat communicate with the left and right ends of the regenerative chamber correspondingly; a connecting pipe communicates with the reversing valve and the burners; an air intake pipe and an exhaust pipe also communicate with the reversing valve; and heat accumulators are arranged in the first burner and the second burner. After the heat accumulators are heated, air is introduced, heated to high temperature, and then supplied to the burners for mixed burning with fuel; the regenerative burning effect is achieved; the adoption of regenerative chambers in pair is necessary, one regenerative chamber is used for heating air, and the other regenerative chamber is heated by flue gas; the energy-saving potential is huge and 30-70% of energy can be saved; the higher the using temperature is, the more obvious the energy-saving effect is; and meanwhile, the emission of greenhouse gas in the atmosphere is greatly relieved.

Description

technical field [0001] The invention belongs to the technical field of workpiece forging heating, and in particular relates to a high-efficiency and energy-saving regenerative heating furnace. Background technique [0002] With the continuous advancement of economic globalization, resource and environmental issues have become increasingly prominent. As a large energy consumer, industrial furnaces have become a top priority how to implement efficient and environmentally friendly energy-saving technologies. [0003] The regenerative combustion technology fundamentally improves the energy efficiency utilization rate of the heating furnace, which not only reduces pollution emissions, but also saves energy. It is an advanced technology that meets the requirements of today's resources and environment. In addition, the regenerative combustion technology strengthens the hot gas circulation in the furnace, uniforms the temperature field in the furnace, improves the heating quality of...

Claims

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Application Information

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IPC IPC(8): F27B17/00F27D1/04F27D7/02F27D17/00F27D99/00
CPCF27B17/00F27D17/004F27D99/0033F27D1/042F27D7/02F27D2099/0056F27D2007/023
Inventor 刘勇
Owner 成都日进冶金锻造有限公司
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