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Processing method of heat exchange pipe

A processing method and technology for heat exchange tubes, applied in the field of environmental protection equipment, can solve problems such as high cost and complex structure, and achieve the effects of extending service life, improving structural strength, and meeting heat exchange requirements.

Inactive Publication Date: 2017-03-08
合肥海宝节能科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by the present invention is to provide a boiler waste heat recovery and reuse device to solve the problems of complex structure and high cost of existing boiler waste heat recovery and reuse devices

Method used

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  • Processing method of heat exchange pipe
  • Processing method of heat exchange pipe

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Such as Figure 1 to Figure 2 As shown, the present invention provides a boiler waste heat recovery and reuse device, comprising: a heat exchanger 1, a spray chamber 2 connected to the heat exchanger 1; a smoke inlet 11 is provided on the top of the heat exchanger 1; a spray chamber 2 The end is provided with a smoke outlet 21; the top of the spray chamber 2 is provided with a nozzle 22; the heat exchanger 1 is provided with an M-shaped heat exchange tube 12; the ends of the M-shaped heat exchange tube 12 are respectively provided with inlet Water pipe 122 and water outlet pipe 121. The bottom of the spray chamber 2 is provided with a drain port 23 . An induced draft fan 24 is provided in the spray chamber 2 near the smoke outlet 21 .

[0034] When the boiler waste heat recovery and reuse device of the present invention is in use, the waste smoke of the boiler can be discharged from the smoke inlet 11 to the inside of the heat exchanger 1, and water can be passed into...

Embodiment 2

[0036] The heat exchange tube molding material is made of the following raw materials in parts by weight:

[0037] 25 parts of silicon carbide, 25 parts of clay, 25 parts of kaolin, 5 parts of monoammonium glycyrrhizinate, 20 parts of water.

[0038] The processing method of the heat exchange tube, the steps are as follows:

[0039] ①. Mix 25 parts of silicon carbide and 10 parts of water and grind for 1 hour;

[0040] ②. Add 25 parts of clay and 5 parts of water again, and continue grinding for 1 hour;

[0041] ③. Add 25 parts of kaolin, 5 parts of monoammonium glycyrrhizinate and 5 parts of water again, and continue grinding for 1 hour;

[0042] ④. Filter out the moisture of the grinding material to keep the water content of 10% to obtain the mud cake;

[0043] ⑤. Make it into a tube shape through a mold, and then dry it at a constant temperature at 200°C for 5 hours;

[0044] ⑥. Sintering in a sintering furnace at a temperature of 1200° C. for 10 hours to obtain a heat ...

Embodiment 3

[0046] The heat exchanger of the boiler waste heat recovery and reuse device has a smoke inlet on the top and an M-shaped heat exchange tube inside. The ends of the heat exchange tube are respectively provided with a water inlet pipe and an outlet pipe. The tubes are processed from the heat exchange tube molding material (prepared in Example 2).

[0047] A method for manufacturing a heat exchanger of a boiler waste heat recovery and reuse device, the steps are as follows:

[0048] 1. Utilize the heat exchange tube molding material to process the heat exchange tube (the processing technology is the same as that in Example 2), the inner diameter of the heat exchange tube is 5 cm, and the thickness of the tube wall is 3 mm;

[0049] ②. Process the heat exchange tube into an M shape through a rolling bending machine;

[0050] ③. Fasten the two ends of the heat exchange tube to the inner wall of the heat exchanger through the flange;

[0051] ④. Install the water inlet pipe and t...

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Abstract

The invention relates to the technical field of environmental protection equipment, particularly to a processing method of a heat exchange pipe. The processing method comprises the steps of (1) after mixing 25 parts of silicon carbide with 10 parts of water, grinding a mixture of silicon carbide and water for 1 hour; (2) adding 25 parts of clay and 5 parts of water again, and continuing to grind for 1 hour; (3) adding 25 parts of kaolin, 5 parts of glycyrrhizic acid ammonium salt and 5 parts of water again, and continuing to grind for 1 hour; (4) removing moisture of an abrasive through filtration, so as to enable the moisture content to remain 10% and to obtain a mud cake; (5) preparing the mud cake into tubular shape through a mold, and then, carrying out constant-temperature drying at the temperature of 200 DEG C for 5 hours; and (6) carrying out sintering at the temperature of 1200 DEG C for 10 hours in a sintering furnace, so as to obtain the heat exchange pipe. According to the forming materials of the heat exchange pipe and the processing method of the heat exchange pipe, the composition of the forming materials and the processing technological parameters are reasonably designed, so that the structural strength of the heat exchange pipe is improved, and the service life of the heat exchange pipe is prolonged.

Description

technical field [0001] The invention relates to the technical field of environmental protection equipment, in particular to a processing method for heat exchange tubes. Background technique [0002] During the use of boilers in iron and steel enterprises, they usually consume a large amount of fuel and produce a large amount of flue gas. Moreover, the exhaust gas temperature of boilers used in iron and steel enterprises is also very high. In the past, these high-temperature flue gases were directly discharged to the atmosphere. , resulting in a huge waste of resources. At present, in order to save energy, many technologies have been produced to recover the waste heat of this high-temperature flue gas. Existing boiler waste heat recovery and reuse devices are often complex in structure, although the boiler waste heat can also be recovered and reused, but the cost is relatively high. [0003] Heat exchange tubes and heat exchangers loaded with heat exchange tubes are importan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): F28F1/00C04B33/13
CPCF28F1/00C04B33/13C04B33/1305F28F2255/06
Inventor 黄方菊
Owner 合肥海宝节能科技有限公司