Dry heat exchanger for explosion-proof diesel engines

By using a dry heat exchanger for explosion-proof diesel engines with a double-layer exhaust pipe and a multi-stage filtration structure, the problems of decreased filtration performance and risk of spark explosion associated with traditional equipment are solved, achieving efficient exhaust gas treatment and reduced energy consumption.

CN224452884UActive Publication Date: 2026-07-03SICHUAN TIANYIDA TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
SICHUAN TIANYIDA TECH CO LTD
Filing Date
2025-04-16
Publication Date
2026-07-03

AI Technical Summary

Technical Problem

Traditional dry exhaust heat exchangers for explosion-proof diesel engines pose risks of reduced filtration performance leading to air pollution, incomplete heat exchange, and the potential for sparks and explosions.

Method used

It adopts a double-layer exhaust pipe structure and a multi-stage interception and filtration structure, combined with a heat insulation module and a grid filter. Multi-stage filtration is carried out through a controllable transfer pump, and temperature isolation is achieved by using a heat insulation layer. Sparks and explosions are suppressed by an acoustic resonance suppressor and a flame arrestor, realizing the cyclical gas heat exchange.

Benefits of technology

It effectively suppresses sparks and explosions, ensures thorough exhaust gas treatment, reduces energy consumption, reduces air pollution, and improves heat exchange efficiency.

✦ Generated by Eureka AI based on patent content.

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    Figure CN224452884U_ABST
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Abstract

This utility model discloses an explosion-proof dry heat exchanger for a diesel engine. It relates to the technical field of diesel engine heat exchangers. The explosion-proof dry heat exchanger includes a housing with a connecting end at one end, connected to a heat dissipation module located within a cavity of the housing. The heat dissipation module is connected to a heat insulation module located on one side of the housing, and the heat insulation module is fixedly connected to a convection module located on the other side of the housing. The heat insulation module includes a cooling water inlet installed on the outer wall of the housing, connected via a pipe to a heat insulation layer fixed to the housing. This utility model utilizes a grid filter within the heat insulation module to guide the flow of exhaust gas. The grid filter performs a first-stage spark interception, preventing conduction with the high-temperature exhaust gas within the heat dissipation module. The gas undergoes multi-stage filtration through a transmission pipeline before being transported to the exchange chamber, where it re-enters as external gas, achieving a cyclical gas heat exchange process.
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