Flue gas heat exchanging device
A flue gas heat exchange and heat exchange tube technology, which is applied in the direction of heat exchanger types, indirect heat exchangers, heat exchange equipment, etc., can solve the problems of poor energy saving effect and inability to reduce the exhaust gas temperature of natural gas boilers.
Inactive Publication Date: 2018-12-28
CHONGQING AONES ENERGY SAVING TECH
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Problems solved by technology
[0005] The purpose of the present invention is to provide a flue gas heat exchange device, which solves the problems in the prior art that the exhaust gas temperature of the natural gas boiler cannot be reduced below 100°C and the energy saving effect is not good
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[0031] The present invention will be described in further detail below by means of specific embodiments:
[0032] The reference signs in the drawings of the specification include: outer cylinder 1, condensed water discharge pipe 11, connecting pipe 12, smoke inlet pipe 13, smoke outlet pipe 14, water tank 3, partition 31, water chamber 32, water inlet pipe 321, outlet pipe Water pipe 322, finned pipe 4, bare pipe 5, reinforcing rib 6.
[0033] The embodiment is basically as attached figure 1 , figure 2 and image 3 Shown:
[0034] The flue gas heat exchange device includes an outer cylinder 1 and a heat exchange tube. The outer cylinder 1 is in the shape of a hollow cuboid, and the cavity inside the outer cylinder 1 is also in the shape of a cuboid; for details, see figure 2 , the cross-section of the outer cylinder 1 is a rectangle with a width of 880mm and a height of 1200mm, and outer steel plates with a thickness of 10mm are fixed on the upper and lower walls of the ...
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The invention relates to the technical field of heat exchanging devices of a fixed tubular channel assembly used for two heat exchanging mediums, and particularly discloses a flue gas heat exchangingdevice. The flue gas heat exchanging device comprises an outer barrel and heat exchanging pipes, the heat exchanging pipes are located in the outer barrel; a flue inlet pipe and a flue outlet pipe arearranged on the outer barrel; outer covers are arranged on the two sides of the outer barrel, and a water tank used for containing water is formed between the outer covers and the outer barrel wall;partition plates are arranged in the water tank, water cavities are formed between the adjacent partition plate, and the adjacent water cavities communicate with each other in a head-tail mode; a water inlet pipe is arranged at the lower portion, close to one side of the flue outlet pipe, of the water cavity, and a water outlet pipe is arranged at the upper portion of the water cavity, close to one side, of the flue inlet pipe; the heat exchanging pipes are arranged in rows, and a plurality of rows of the heat exchanging pipes are arranged between the opposite water cavities on the two sides in a communicating mode; the water flow direction in the heat exchanging pipes is opposite to the flow direction of the flue gas; fins are arranged at the position, close to one side of the flue pipes,on the outer walls of the heat exchanging pipes; and a condensate water discharging pipe is arranged on the lower portion of the outer barrel in a communicating mode. The flue gas heat exchanging device solves the problems that in the prior art, the exhaust flue temperature of a natural gas boiler cannot be reduced below 100 DEG C, and the energy-saving effect is poor.
Description
technical field [0001] The invention relates to a heat exchange device for a fixed tubular channel assembly used for two heat exchange media, and specifically discloses a flue gas heat exchange device. Background technique [0002] In recent years, with the increasing development and progress of society, the country has gradually increased its requirements for resource conservation, environmental protection, and comprehensive utilization of energy. In the heating industry, gas-fired boilers have the advantages of less pollution and higher thermal efficiency than coal-fired boilers. [0003] The main products after combustion of natural gas boilers are carbon dioxide (CO2) and water (H20). Water exists in the high-temperature flue gas discharged from the boiler in the form of water vapor, accounting for 15%-18% of the total volume of flue gas. The latent heat of vaporization of this part of water vapor is several times that of the sensible heat of the flue gas. Taking effect...
Claims
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Inventor 李娟
Owner CHONGQING AONES ENERGY SAVING TECH