CN205897910U

CN205897910U - A granule heat exchanger that is used for heat transfer to sieve with preliminary

Info

Publication number: CN205897910U
Application number: CN201620819942.7U
Authority: CN
Inventors: 吴东垠; 孔伟佳
Original assignee: Xian Jiaotong University
Current assignee: Xian Jiaotong University
Priority date: 2016-07-30
Filing date: 2016-07-30
Publication date: 2017-01-18
Anticipated expiration: 2026-07-30

Abstract

The utility model provides the utility model relates to a granule heat exchanger of screening function, including upper strata tube bank, lower floor's tube bank, header, inlet tube, outlet pipe, trapezoidal funnel, baffle, heat exchanger shell, grain exports, connecting pipe, upper strata tube bank, lower floor's tube bank stagger arrangement slope are arranged to by the heat exchanger shell cladding, the granule is got into by trapezoidal funnel, drops on the in -process realization heat transfer of rolling after restrain on the upper strata downwards, is restrained by slit source to the lower floor of upper strata tube bank at roll in -process tiny particle, and follows lower floor's tube bank continuation roll and heat transfer, is finally discharged by grain exports, and roll and heat transfer are restrained then continue to follow the upper strata to the large granule, until discharging via grain exports. The utility model discloses can regard as final stage granule heat exchanger, effectively the relict heat of the high slag of recycle to realize the preliminary screening of granule simultaneously.

Description

A kind of granule heat exchanger for heat exchange and preliminary screening

Technical field

This utility model be related to heat exchanger and in particular to a kind of for heat exchange and preliminary screening granule heat exchanger.

Background technology

Steel and iron industry is energy intensive industry, and its energy consumption accounts for the 10%～15% of Chinese total energy consumption, and energy-saving and emission-reduction should It is the work that steel and iron industry is adhered to for a long time.Blast furnace slag is the topmost solid by-product of steel and iron industry, and 1 ton of ferrum of refining about produces 300 kilograms of blast furnace slags, 1400 DEG C about of tapping temperature, is the thermal source of very high-quality.Existing blast furnace slag waste heat recovery technology effect Rate is relatively low, and especially the blast furnace slag after heat exchange cooling still has certain heat, and the waste heat of slag does not obtain effective profit With meanwhile, blast furnace cinder can be used for producing the products such as function building glass microballon.Therefore, how to realize blast furnace cinder heat energy Efficient step reclaim that to work in coordination with the science of blast furnace slag high level resource be also that blast furnace slag waste heat utilizes problem urgently to be resolved hurrily.

Content of the invention

For solving above-mentioned problems of the prior art, the purpose of this utility model be to provide a kind of for heat exchange and The granule heat exchanger of preliminary screening, can recycle after early stage heat exchange cooling effectively as final stage granule heat exchanger Blast furnace slag amount of residual heat, and realize the preliminary screening of granule, further, since the washing away of granule, heat exchanger tube table simultaneously Face is difficult dust stratification, can keep higher heat exchange efficiency.

In order to achieve the above object, this utility model be the technical scheme is that

A kind of for heat exchange and preliminary screening granule heat exchanger, include upper strata tube bank a1, b2 restrains in lower floor, header c3, Header d6, header h11, header g13, outlet j5, inlet tube i4, trapezoidal funnel 7, heat exchanger shell 8, particle outlet e9, Grain outlet f10, connecting tube 12；It is characterized in that: described upper strata tube bank a1, lower floor's tube bank b2 stagger arrangement are in tilted layout, and by heat exchange Device housing 8 coats, and granule is entered by trapezoidal funnel 7, fall upper strata tube bank a1 after to lower rolling process in realize heat exchange, roll Process small particles are sized to lower floor tube bank b2 by the gap that a1 is restrained on upper strata, and continue to roll and heat exchange along lower floor tube bank b2, And finally discharged by particle outlet f10, and bulky grain then continues to roll and heat exchange along upper strata tube bank a1, until going out via granule Mouth e9 discharges.

Described upper strata tube bank a1 two ends are connected by header d6, header g13 respectively, and header d6 is connected to outlet j5, described under Layer tube bank b2 two ends are connected by header c3, header h11 respectively, and header c3 is connected to inlet tube i4, header h11 and header g13 by even Adapter 12 links together, and water is flowed into by inlet tube i4, distributes via header c3 and is flowed and heat exchange to lower floor tube bank b2, and After being converged by header g13, sequentially enter header g13 via connecting tube 12, then distribute and flow and heat exchange to upper strata tube bank a1, by After header d6 converges, finally flow out via outlet j5.

Described upper strata tube bank a1 and lower floor tube bank b2 is 20 ° with horizontal plane angle.

It is connected using diaphragm 14 between described lower floor tube bank b2, for accepting little particle, and strengthen little particle and lower floor's pipe The heat exchange of bundle b2.

Compared to the prior art, this utility model has the advantage that

1st, a kind of granule heat exchanger for heat exchange and preliminary screening that this utility model provides, granule is entered by trapezoidal funnel Enter, fall upper strata tube bank, realize heat exchange during scrolling down through due to the effect of self gravitation, rolling process small particles by The slit source of upper strata tube bank is restrained to lower floor, rolls and continues to roll and heat exchange along lower floor's tube bank, and bulky grain is then managed along upper strata Bundle rolls and heat exchange.Said structure while realizing heat exchange, can carry out the preliminary screening of granule, is easy to the further of granule Using and continue sorting.Further, since the washing away of granule, Surface of Carbon Steel Exchanger is difficult dust stratification, and the heat exchange that can keep higher is imitated Rate.Leak water in tube bank, water has the higher coefficient of heat transfer compared to air, and the setting restrained to avoid granule direct with water Contact causes the waste of water resource.

2nd, lower floor's interbank employing diaphragm is connected, and can accept the little particle that upper strata tube bank is sieved, and can fill When the effect of fin, strengthen the heat exchange of little particle and tube bank.

Brief description

Fig. 1 is a kind of top view for heat exchange and the granule heat exchanger of preliminary screening of this utility model.

Fig. 2 is the a-a sectional view of Fig. 1.

Fig. 3 is the b-b sectional drawing of Fig. 2.

Fig. 4 is the schematic diagram that header and tube bank connect.

The schematic diagram that Fig. 5 is connected with two headers for connecting tube.

Specific embodiment

With reference to the accompanying drawings and detailed description this utility model is described in further detail.

As depicted in figs. 1 and 2, a kind of granule heat exchanger for heat exchange and preliminary screening of this utility model, including upper strata Tube bank a1, lower floor tube bank b2, header c3, header d6, header h11, header g13, outlet j5, inlet tube i4, trapezoidal funnel 7, Heat exchanger shell 8, particle outlet e9, particle outlet f10, connecting tube 12.

Shown in the sectional drawing that sectional view and Fig. 3 as Fig. 2 granule heat exchanger restrains, tube bank b2 is wrong for upper strata tube bank a1, lower floor Row are in tilted layout, and granule is entered by trapezoidal funnel 7, fall upper strata tube bank a1 after to lower rolling process in realize heat exchange, roll During relatively small granule b2 is restrained to lower floor by the slit source that a1 is restrained on upper strata, and continue to roll along lower floor tube bank b2 and Heat exchange, and finally discharged by particle outlet f10, and bulky grain then rolls along upper strata tube bank a1 and heat exchange is up to via particle outlet E9 discharges.As depicted in figs. 1 and 2, particle outlet e9 and particle outlet f10 is long and narrow notch, arranges one on the other, respectively Discharge the bulky grain after tube bank heat exchange and screening and little particle, to sort further or directly to utilize.Heat exchanger shell 8 It is coated with Pipe bundle structure, play and reduce the effect that granule externally radiates.

As preferred implementation of the present utility model, as shown in Fig. 2, Fig. 4 and Fig. 5, upper strata tube bank a1 two ends respectively by Header d6, header g13 connect, and header d6 is connected to outlet j5, and described lower floor's tube bank b2 two ends are respectively by header c3, header h11 Connect, header c3 is connected to inlet tube i4.As shown in figure 5, header h11 and header g13 is connected by the connecting tube 12 positioned at side. Fig. 4 is shown that the schematic diagram that a1 one end and header d6 connect is restrained on upper strata, the connected mode phase therewith of other tube banks and header With tube bank two ends are inserted in header respectively, and header plays, to the current in tube bank, the effect converging or shunting.Water is by inlet tube I4 flows into, and distributes via header c3 and is flowed and heat exchange to lower floor tube bank b2, and after being converged by header g13, via connecting tube 12 entrance header g13, then distribute to upper strata tube bank a1 flowing and heat exchange, after being converged by header d6, finally via outlet j5 Flow out.

As preferred implementation of the present utility model, described upper strata tube bank a1 and lower floor tube bank b2 is equal with horizontal plane angle For 20 °, both avoided tube bank angle of inclination excessive when, partial particulate directly falls without in interbank rolling and heat exchange To the situation of outlet, the angle of inclination being again unlikely to because restraining is too small, causes granule cannot normally fall.

As preferred implementation of the present utility model, it is connected using diaphragm 14 between described lower floor tube bank b2, is used for holding Connect little particle, and the effect of fin can be served as and strengthen little particle and restrain the heat exchange of b2 with lower floor.

Claims

1. a kind of granule heat exchanger for heat exchange and preliminary screening, including upper strata tube bank a (1), lower floor's tube bank b (2), header c (3), header d (6), header h (11), header g (13), outlet j (5), inlet tube i (4), trapezoidal funnel (7), heat exchanger shell (8), particle outlet e (9), particle outlet f (10), connecting tube (12)；It is characterized in that: described upper strata tube bank a (1), lower floor's pipe Bundle b (2) stagger arrangement is in tilted layout, and is coated by heat exchanger shell (8), and granule is entered by trapezoidal funnel (7), falls and restrains a on upper strata (1) descend in rolling process to realize heat exchange backward, managed to lower floor by the slit source that a (1) is restrained on upper strata in rolling process small particles Bundle b (2), and continue to roll and heat exchange along lower floor's tube bank b (2), finally discharged by particle outlet f (10), and bulky grain then continues Roll and heat exchange along upper strata tube bank a (1), until discharging via particle outlet e (9).

2. according to claim 1 a kind of for heat exchange and preliminary screening granule heat exchanger it is characterised in that: described Layer tube bank a (1) two ends are connected by header d (6), header g (13) respectively, and header d (6) is connected to outlet j (5), described lower floor pipe Bundle b (2) two ends are connected by header c (3), header h (11) respectively, and header c (3) is connected to inlet tube i (4), header h (11) and connection Case g (13) is linked together by connecting tube (12), and water is flowed into by inlet tube i (4), distributes via header c (3) and restrains b to lower floor (2) flowed and heat exchange, and after being converged by header g (13), sequentially entered header g (13), Ran Houfen via connecting tube (12) It is assigned to upper strata tube bank a (1) flowing and heat exchange, after being converged by header d (6), finally flow out via outlet j (5).

3. according to claim 1 a kind of for heat exchange and preliminary screening granule heat exchanger it is characterised in that: described Layer tube bank a (1) and lower floor's tube bank b (2) are 20 ° with horizontal plane angle.

4. according to claim 1 a kind of for heat exchange and preliminary screening granule heat exchanger it is characterised in that: under described It is connected using diaphragm (14) between layer tube bank b (2), for accepting little particle, and strengthen little particle and restrain changing of b (2) with lower floor Heat.