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Energy-saving flue gas waste heat recovery pipeline

A technology for flue gas waste heat recovery and pipeline recovery, applied in indirect heat exchangers, heat exchanger types, climate sustainability, etc.

Active Publication Date: 2019-11-15
HENAN YISHUIYUAN WATER PURIFICATION MATERIAL TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are many reasons that affect the fuel consumption of the heating furnace during the operation of the boiler. The heat loss of the exhaust gas is one of the most important factors. The higher the temperature of the exhaust gas, the greater the heat loss of the exhaust gas. In the traditional technology, it is usually set at the exhaust end of the boiler. The heat exchanger makes secondary use of the heat energy of the flue gas, but because the flue gas is quickly discharged after heating, its heat is discharged into the atmosphere before it is fully utilized

Method used

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  • Energy-saving flue gas waste heat recovery pipeline

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] refer to Figure 1 to Figure 5 , including a fixed frame 1, two rod bodies 10 are arranged on the fixed frame 1, and in this embodiment, two rod bodies 10 are arranged symmetrically on the fixed frame 1, and the rod body 10 is provided with a Its radial sliding non-return plate 8 .

[0029] refer to image 3 , the specific structure of the non-return plate 8 is as follows:

[0030] The non-return plate 8 includes a plate body 81, a tension spring 82 and a baffle plate 83. An opening is provided on the non-return plate 8, and a baffle plate having the same shape as the opening but larger in size than the opening is hinged on one side of the opening. 83, the other side of the opening is provided with a tension spring 82 connecting the plate body 81 and the baffle plate 83, and the jack block 12 corresponds to the number of openings, which are one. Under normal conditions, the tension spring 82 pulls the baffle plate 83 to The opening is closed, and when the baffle 83 i...

Embodiment 2

[0045] Embodiment two On the basis of embodiment one, further:

[0046]The entity of the annular indentation 2c is provided with a ring of annular protrusions 2d, and the setting of the annular protrusions 2d increases the length of the annular indentation 2c on the one hand, making it more smooth, and the force-bearing area is larger, It avoids the problem that the traditional corner structure is concentrated on one point and is easy to be damaged; on the other hand, because the telescopic tube 2 will be deformed under the action of thermal stress for a long time, the annular protrusion 2d increases the length of the annular indentation 2c, so that the Thermal expansion and contraction for length compensation to avoid breakage.

Embodiment 3

[0048] Embodiment three On the basis of embodiment one or embodiment two, further:

[0049] The outer surface of the rod body 10 is provided with external threads, and the connection between the fixed frame 1 and the rod body 10 is rotatably connected with a nut 11, and the rod body 10 is threadedly connected with the nut 11 through the external thread, and the port of the rod body 10 is fixedly connected with limited Position slider 7, a chute 9 is provided at the position corresponding to the limit slider 7 on the fixed frame 1, and the limit slider 7 is slidably connected in the chute 9, and the turning nut 11 can drive the rod body 10 to move up and down in the axial direction. Displacement, thereby further driving the slider 7 to slide on the chute 9. When the slider 7 moves, the minimum motion range of the check plate 8 on the rod body 10 can be reduced or increased, thereby increasing or reducing the minimum telescopic range of the telescopic tube 2, and finally realizi...

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PUM

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Abstract

The invention discloses an energy-saving flue gas waste heat recovery pipeline and relates to the technical field of waste heat recovery devices. A telescopic pipe is arranged in a folded shape, and hot gas is detained in the telescopic pipe as being blocked by a non-return plate, so that heat energy can be utilized more fully. Meanwhile, the gas pressure is converted into mechanical energy through which the telescopic pipe stands upright while gas in the telescopic pipe expands continuously, and a fresh water source is sucked continuously while the telescopic pipe stands upright till the telescopic pipe drives the non-return plate to be in contact with an ejector block, so that inner and outer gas pressures of the telescopic pipe communicate and meanwhile, the telescopic pipe shrinks continuously under the action of self-gravity to drive a liquid in the telescopic pipe to be discharged from a water outlet pipe continuously till the telescopic pipe moves to the lowest position to achieve a circulation. The telescopic pipe ascends automatically and the liquid in a cavity is sucked automatically by means of the circulation without being driven by an extra energy source. Meanwhile, heat energy of flue gas is utilized to the maximum extent, so that the energy-saving flue gas waste heat recovery pipeline is energy-saving and environmental-friendly.

Description

technical field [0001] The invention relates to the technical field of waste heat recovery devices, in particular to an energy-saving flue gas waste heat recovery pipeline. Background technique [0002] A boiler is a kind of energy converter, which is a device that uses the heat energy released by fuel combustion or other heat energy to heat working medium water or other fluids to a certain temperature. There are many reasons that affect the fuel consumption of the heating furnace during the operation of the boiler. The heat loss of the exhaust gas is one of the most important factors. The higher the temperature of the exhaust gas, the greater the heat loss of the exhaust gas. In the traditional technology, it is usually set at the exhaust end of the boiler. The heat exchanger makes secondary use of the heat energy of the flue gas, but because the flue gas is quickly discharged after heating, its heat is discharged into the atmosphere before it is fully utilized. Contents ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F23B80/02F23J15/06F28D7/08
CPCF23B80/02F23J15/06F28D7/082Y02E20/30
Inventor 韩保刚
Owner HENAN YISHUIYUAN WATER PURIFICATION MATERIAL TECH CO LTD