A compact primary surface heat exchanger for oil and gas heaters

A technology of gas heaters and surface heat exchangers, applied in water heaters, fluid heaters, lighting and heating equipment, etc., can solve the problems of long engine warm-up and start-up time, and improve environmental adaptability and heat transfer The effect of efficiency, fast and reliable start-up

Active Publication Date: 2011-12-21
北京北机机电工业有限责任公司
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  • Abstract
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  • Claims
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Problems solved by technology

[0003] Aiming at the problem of low heat exchange efficiency of heat exchangers in the prior art, the present invention provides a compact primary surface heat exchanger with high heat exchange efficiency. Since the heat exchange surfaces of the heat exchanger are primary primary surfaces, Therefore, the heat tran...

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  • A compact primary surface heat exchanger for oil and gas heaters
  • A compact primary surface heat exchanger for oil and gas heaters
  • A compact primary surface heat exchanger for oil and gas heaters

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Embodiment Construction

[0034] In order to make the objectives, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention, but not to limit the present invention.

[0035] figure 1 It is a longitudinal cross-sectional view of a schematic structural diagram of an oil-fired and gas-fired heater, including a burner 13 and a heat exchanger 18 , wherein the heat exchanger 18 includes a heat exchange shell 12 and a heat exchange core 11 inside the heat exchange shell 12 . The heat exchange shell 12 is composed of an outer shell 7, a front inner shell 6-1, a rear inner shell 6-2, a front flange 8-1 and a rear flange 8-2. The inner shell 6-1 and the rear inner shell 6-2 are both hollow cylinder structures, the front inner shell 6-1 and the rear inner shell 6...

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Abstract

In order to solve the problems of low heat exchange efficiency and large volume of a heat exchanger in the prior art, the invention provides a compact primary surface heat exchanger with high heat exchange efficiency. The heat exchanger comprises a heat exchange shell and a heat exchange core, wherein the heat exchange shell comprises an outer shell, a front inner shell, a rear inner shell, a front fixing piece and a rear fixing piece; the upper side of the front part of the outer shell is provided with a liquid outlet; the lower side of the rear part of the outer shell is provided with a liquid inlet; the heat exchange core comprises a frame and a plurality of heat exchange units which are fixed on the frame and arranged along the horizontal direction; a plurality of liquid flow channelswhich are through along the vertical direction are formed in each heat exchange unit; and a gas flow channel which is through along the longitudinal direction is formed between adjacent heat exchangeunits. The heat exchange surface of the heat exchanger is a primary surface, so heat transfer heat resistance is reduced compared with that of a secondary surface fin heat exchange mode, the heat exchange efficiency and volume density are improved, the problem of overlong preheated start time of a vehicle engine in a low-temperature environment is solved, the environmental adaptability of a vehicle is improved, and the vehicle can be quickly and reliably started in the low-temperature environment.

Description

technical field [0001] The invention belongs to the technical field of high-efficiency original surface heat exchange for fuel oil and gas heaters, and particularly relates to a compact original surface heat exchanger for fuel oil and gas heaters. Background technique [0002] Engine low temperature auxiliary starting equipment (hereinafter referred to as heater) is an important auxiliary device for rapid engine cold start, vehicle interior heating, windshield defrosting and battery insulation under low temperature conditions, and has good application prospects at home and abroad. The heater is mainly composed of a heat exchanger, a burner and a controller. The performance of the heat exchanger determines the adaptability and reliability of the low temperature start of the engine. The heat exchanger with good heat exchange effect can greatly shorten the low temperature start time. . In the prior art, for example, the Chinese patent application with the publication number CN...

Claims

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Application Information

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IPC IPC(8): F24H1/12F24H9/00
Inventor 姜勇宋卫群
Owner 北京北机机电工业有限责任公司
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