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Silicon carbide plate heat exchanger

A technology of silicon carbide plates and silicon carbide plates, applied in the direction of indirect heat exchangers, heat exchanger types, heat exchanger sealing devices, etc., can solve the problems of heat exchange equipment corrosion and scrapping, achieve simple structure, and solve low temperature dew point The effect of corrosion and large heat exchange space

Active Publication Date: 2020-12-29
SHANDONG WINTECH TECH CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The invention provides a silicon carbide heat exchange plate and a heat exchanger thereof, which solves the current problem of corrosion and scrapping of heat exchange equipment caused by low temperature dew point corrosion

Method used

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  • Silicon carbide plate heat exchanger
  • Silicon carbide plate heat exchanger
  • Silicon carbide plate heat exchanger

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0027] Example 1, such as Figure 1 to Figure 6 As shown, the present invention is a silicon carbide plate heat exchanger, which includes a heat exchange box, a heat exchange assembly is arranged in the heat exchange box, and a flue gas inlet pipe 12 and a flue gas outlet are arranged at the front and rear ends of the heat exchange box The pipeline 13 is characterized in that: the heat exchange assembly includes a plurality of silicon carbide heat exchange plates stacked in the heat exchange box, and there is a gap between adjacent silicon carbide heat exchange plates, and each silicon carbide heat exchange plate includes a silicon carbide heat exchange plate Plate 1, the silicon carbide plate 1 is provided with a plurality of water delivery holes 15 along the width direction, the two ends of the water delivery holes 15 extend to the two ends of the silicon carbide plate 1, and the two ends of the silicon carbide The liquid shell 3 is connected with connecting pipes 2 on the o...

Embodiment 2

[0039] Embodiment 2 is different from Embodiment 1 in that the connecting pipes 12 on both sides can be changed into long plastic hoses made of PTFE or PA, and the tube plates 6 and pipe boxes 7 on both sides can be changed into water inlet and outlet collectors on both sides. There is a row of water inlet or outlet ports on the liquid collection pipe. One end of the long plastic hose is connected to the short joint 5 on the silicon carbide plate 1, and the other end is connected to the liquid collection pipe. In this way, the water flows from the liquid collection pipe. One end enters, enters the silicon carbide plate 1 through a long plastic hose, and after exchanging heat with the flue gas, flows out through the other end of the long plastic hose to the liquid collector on the other side to complete the heat exchange.

Embodiment 3

[0040] Example 3, such as Figure 7 to Figure 9 As shown, on the basis of Embodiment 1, a support platform is provided at the outer end of the inner hole of the connection flange pipe 14 at one end of the flue gas inlet pipe 12, and a support sleeve 17 is provided inside the connection flange pipe 14, and the outer end of the support sleeve 17 is outside Be fixed with the supporting edge that cooperates with supporting table, be provided with positioning post 26 on supporting table, be provided with positioning jack on supporting edge, be fixed with supporting ring 20 on the inner hole wall of supporting sleeve 17 left ends, the left side of supporting ring 20 is provided with Screen mesh ring one 25, in the endoporus of screen mesh ring one 25, be fixed with the center to the spherical screen mesh one 23 of sunken right side, the left side of screen mesh ring one 25 is provided with spacer 21, the left side of spacer 21 The side is provided with screen mesh ring two 22, and t...

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Abstract

The invention relates to a silicon carbide plate heat exchanger which comprises a heat exchange box body. A heat exchange assembly is arranged in the heat exchange box body, a smoke inlet pipeline anda smoke outlet pipeline are arranged at the front end and the rear end of the heat exchange box body, the heat exchange assembly comprises a plurality of silicon carbide heat exchange plates arrangedin the heat exchange box body in a stacked mode, and a gap is reserved between every two adjacent silicon carbide heat exchange plates. Each silicon carbide heat exchange plate comprises a silicon carbide plate sheet, wherein a plurality of water conveying holes are formed in the silicon carbide plate sheet in the width direction, the two ends of each water conveying hole straightly extend to thetwo end faces of the silicon carbide plate sheet, liquid collecting shells are fixed to the two ends of the silicon carbide plate sheet, connecting pipes are connected to the outer sides of the liquid collecting shells on the two sides, and water inlet and outlet devices are connected to the connecting pipes on the two sides. The silicon carbide heat exchange plates are used in the silicon carbide plate heat exchanger, so that extremely high corrosion resistance, oxidation resistance and erosion resistance are achieved, and extremely long service life is achieved. The problem of low-temperature dew point corrosion in the field of heat exchangers is effectively solved, and the heat-conducting property is better.

Description

technical field [0001] The invention relates to a silicon carbide plate heat exchanger, which belongs to the technical field of heat exchange. Background technique [0002] In the field of low-temperature waste heat recovery heat exchangers, heat exchange between flue gas and air or water is used to reduce the temperature of flue gas and increase the temperature of air or water. There are many types of heat exchangers, mainly plate type and tube type. , The plate heat exchanger is mainly stainless steel plate type, and the tube type is mainly enamel tube type. However, the flue gas outlet temperature is generally above 120°C, and further cooling will cause corrosion and scrapping of equipment due to low-temperature dew point corrosion. Therefore, low-temperature dew point corrosion has always been a difficult problem in the low-temperature waste heat recovery heat exchanger industry. Contents of the invention [0003] The invention provides a silicon carbide heat exchange...

Claims

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Application Information

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IPC IPC(8): F28D9/00F28F11/00F28F19/00F28F21/02
CPCF28D9/00F28F21/02F28F19/00F28F11/00
Inventor 李振建梁晓敏
Owner SHANDONG WINTECH TECH CO LTD
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