CN201034430Y

CN201034430Y - Power boiler H-shaped coal economizer

Info

Publication number: CN201034430Y
Application number: CNU200720116632XU
Authority: CN
Inventors: 孙跃清; 李成杰; 闻丛
Original assignee: HARBIN XINBEIYUAN POWER EQUIPMENT MANUFACTURING Co Ltd
Current assignee: HARBIN XINBEIYUAN POWER EQUIPMENT MANUFACTURING Co Ltd
Priority date: 2007-07-20
Filing date: 2007-07-20
Publication date: 2008-03-12
Anticipated expiration: 2017-07-20

Abstract

The utility model provides an H typed coal economizer device used in the power station boiler. The utility model comprises a heat exchange tube, an elbow that is connected with the heat exchange tube and an outer frame. The heat exchange tube is composed of a core tube and an H typed fin arranged out of the core tube. The heat exchanger composed of the H typed heat exchange tube has the largest heat dissipation and heat absorption area, the smallest wind resistance and a high flow rate. Therefore, the heat exchange efficiency of the utility model is high and dust is not easy to accumulate. The utility model is suitable for the heat exchange of hot flue gas with particles and is easy to make a module and is convenient to install. Meanwhile, as the fin has the capacity of heat absorption and heat dissipation and the flow speed of the flue gas is greatly increased, the number of steel pipes is reduced to a large extent, the consumption on steel is decreased and the heat exchange rate is raised.

Description

Station boiler H type economizer

(1) technical field

The utility model relates to a kind of heat exchanger, specifically a kind of waste-heat recovery device.

(2) background technology

The fast traffic lane of high speed development has been stepped in the economic development of China, and all trades and professions are all striding forward to efficient, energy-saving and environmental protection target.The development need energy, sustainable development more need efficiently, the equipment of energy-saving and environmental protection, and generating, petrochemical industry, industrial enterprise all take new technology on improving efficiency, cutting down the consumption of energy, the innovation of taping the latent power.What mainly adopt in the employed heat exchanger in the heat exchanger that uses on industries such as generating, petrochemical industry, UTILIZATION OF VESIDUAL HEAT IN at present is ganoid light pipe.Its exchange capability of heat is poor, and efficient is low, needs to consume a large amount of metal pipe materials, the production cost height, and heat-energy losses is big.

(3) utility model content

The purpose of this utility model is to provide a kind of good effect of heat exchange, and cost is low, easily the station boiler H type economizer H type heat exchanger of making.

The purpose of this utility model is achieved in that it comprises the elbow and the external frame of heat exchanger tube, connection heat exchanger tube, and the composition of described heat exchanger tube comprises the core pipe, has H type fin outside the core pipe.

The utility model can also comprise:

1, described H type fin equidistantly is distributed in outside the core pipe.

2, described H type fin unequal-interval is distributed in outside the core pipe.

3, described H type fin is welded on outside the core pipe.

4, described H type fin is perpendicular to core tubular axis line.

Station boiler H type economizer of the present utility model, can be used as the exchange heat such as flue gas waste heat recovery, oilfield gas injection stove of station boiler, advanced, the energy-efficient advantage that possesses skills can be used for generating electricity, industries such as petrochemical industry, UTILIZATION OF VESIDUAL HEAT IN replace the light pipe heat transfer technology that heat exchange efficiency is low, steel consumption is big in the past.Station boiler H type economizer of the present invention (being H type fin economizer again) is a state-of-the-art energy-efficient economizer in the present large-sized station boiler economizer.The utility model is that to utilize resistance flash of light welding be the outer surface that 2～3 millimeters steel disc vertical axis is welded in steel pipe with multi-disc thickness, and parallel between steel disc and the steel disc, pitch can be regulated, the precision height.Heat exchanger heat radiation of forming thus and endotherm area maximum, wind resistance minimum, flow velocity height, so heat exchange efficiency height are difficult for dust stratification, are applicable to the hot flue gas heat exchange of band particle, and are easy to form module, and be easy for installation.Because fin has the suction heat-sinking capability, flue gas flow rate improves simultaneously, has significantly reduced the consumption of steel pipe, has reduced the consumption of steel, has improved heat exchange efficiency.

(4) description of drawings

Fig. 1 is a structural representation of the present utility model;

Fig. 2 is the structural representation of heat exchanger tube of the present utility model;

Fig. 3 is the left view of Fig. 2.

(5) specific embodiment

For example the utility model is done description in more detail below in conjunction with accompanying drawing:

In conjunction with Fig. 1, it comprises the elbow 3 and the external frame 4 of heat exchanger tube, connection heat exchanger tube the composition of station boiler H type economizer.In conjunction with Fig. 2 and Tu, the composition of H type heat exchanger tube comprises core pipe 1, has H type fin 2 outside the core pipe.H type fin can be equidistantly or unequal-interval be distributed in outside the core pipe.H type fin utilizes the method for resistance flash of light welding to be welded on outside the core pipe.H type fin is perpendicular to core tubular axis line.

Claims

1. station boiler H type economizer, it comprises heat exchanger tube, connects the elbow and the external frame of heat exchanger tube, and it is characterized in that: the composition of described heat exchanger tube comprises the core pipe, has H type fin outside the core pipe.

2. station boiler H type economizer according to claim 1 is characterized in that: described H type fin equidistantly is distributed in outside the core pipe.

3. station boiler H type economizer according to claim 1 is characterized in that described H type fin unequal-interval is distributed in outside the core pipe.

4. according to claim 1,2 or 3 described station boiler H type economizers, it is characterized in that described H type fin is welded on outside the core pipe.

5. according to claim 1,2 or 3 described station boiler H type economizers, it is characterized in that described H type fin is perpendicular to core tubular axis line.

6. station boiler H type economizer according to claim 4 is characterized in that described H type fin is perpendicular to core tubular axis line.