CN203083406U

CN203083406U - Spray-type slag water heat exchanger

Info

Publication number: CN203083406U
Application number: CN 201220717613
Authority: CN
Inventors: 郭建勋; 姜宇; 李健; 姜享成; 张微
Original assignee: LIAONING HONGSHENG HEAT ENERGY TECHNOLOGY Co Ltd
Current assignee: SIPING JUYUAN HANYANG PLATE HEAT EXCHANGER CO Ltd
Priority date: 2012-12-24
Filing date: 2012-12-24
Publication date: 2013-07-24
Anticipated expiration: 2022-12-24

Abstract

The utility model relates to a spray-type slag water heat exchanger. The spray-type slag water heat exchanger comprises an upper pipe tank, a lower pipe tank, a shell body arranged between the upper pipe tank and the lower pipe tank, and a pipe bundle arranged inside the shell body, and is characterized by further comprising a spray device arranged at the top end of the upper pipe tank, wherein the pipe bundle is of a double-arch baffle plate structure and comprises double-arch baffle plates I and double-arch baffle plates II in an overlaid assembly mode. The spray-type slag water heat exchanger adopts a structural style of a pipe shell type heat exchanger, and is additionally provided with a pollution-cleaning spray device and a manhole based on a traditional pipe shell type heat exchanger. When the heat exchanger operates for a period of time, and scaling or blockage is detected to form at a pipe side of the heat exchanger, high-pressure water is used for flushing the pipe side through the spray device to achieve the purpose of cleaning dirt at the pipe side.

Description

Fountain pulp water heat exchanger

Technical field

The utility model relates to a kind of heat exchanger that steel industry cools to the flushing cinder water of high temperature furnace slag that is used for, a kind of specifically fountain pulp water heat exchanger, this heat exchanger has made full use of the waste heat of blast furnace pulp water, and has avoided heat exchanger tube to stop up because of long-play.

Background technology

Steel industry produces a large amount of waste heat complementary energy aborning, high-temperature residual heat has generally obtained reclaiming in the technological transformation of energy-saving and emission-reduction in recent years, but most of low temperature exhaust heat is often out in the cold, and be wasted, such as the waste heat of blast furnace slag quenching water,, it is wasted mostly because of containing a large amount of granule foreigns.How realizing the UTILIZATION OF VESIDUAL HEAT IN of blast furnace slag quenching water, is an energy-conservation problem that is significant.

The blast furnace slag flushing pond is a least significant end technology in the steel smelting procedure, the a large amount of high temperature furnace slags that produce behind the blast furnace ironmaking cool off by flushing cinder water, can produce big amount temperature in this process at 65～75 ℃ low-temperature water heating, usually, in order to guarantee the recycling effect of flushing cinder water, this part flushing cinder water need be introduced air cooling tower behind sedimentation and filtration, cool to the flushing cinder that circulates once more below 50 ℃, or carry out nature cooling back and continue the circulation flushing cinder, a large amount of waste heats is wasted, both cause the waste of the energy, again environment had been caused thermal pollution.

At present, when utilization was carried out heating heat-exchange except that pulp water as thermal source, some equipment producers often adopted plate type heat exchanger or traditional shell-and-tube heat exchanger, and plate type heat exchanger exists channel pitch little, easily stops up, and inter deterioration is serious, is difficult for disadvantages such as maintenance; Traditional shell-and-tube heat exchanger, heat exchanger does not have online decontamination apparatus, and serious clogging will appear in heat exchanger after operation a period of time, the granule foreign in the pulp water and contain thick the hardening in heat exchanger of filiform of colloid, can't dredge, heat exchanger can only be scrapped.

Summary of the invention

In view of above-mentioned present situation, the purpose of this utility model be to provide a kind of simple and reasonable, can not occur clogging, reliable, safeguard and maintenance is convenient, heat-transfer effect is good fountain pulp water heat exchanger.

The purpose of this utility model is achieved in that heat exchanger comprises upper tube box, lower tube box, is arranged on the housing between upper tube box and the lower tube box, be arranged on the tube bank of enclosure interior, it is characterized in that: it also comprises a spray equipment that is arranged on the upper tube box top, the double segmental baffle structure is adopted in described tube bank, and tube bank is alternately superposeed to assemble by double segmental baffle I and double segmental baffle II and constitutes.

The utlity model has following advantage and good effect:

1, the utility model adopts the shell-and-tube heat exchanger structural shape, on conventional tube shell heat exchanger basis, scrubbing spray equipment and manhole have been set up, just after heat exchanger moves a period of time, when detecting fouling of Tube Sheet of Heat Exchanger side or obstruction, by spray equipment, with high pressure water washing pipe side, to reach the purpose of pipe side scrubbing.

2, the utility model has also increased manhole equipment on the heat exchanger bobbin carriage, and fouling in because of heat exchanger when can not get rid of by spray equipment, can be opened manhole, and the maintenance personal enters heat exchanger inside, takes out stains by specific purpose tool or cleaning Ji.

3, the utility model is considered the practicality of entire equipment, and heat exchanger shell pass has been taked double segmental baffle, has both improved heat transfer coefficient, and has reduced the possibility of vibration.

Description of drawings

Fig. 1 is a fountain pulp water heat exchanger overall structure schematic diagram.

Fig. 2 is the utility model spray equipment structural representation.

Fig. 3 a is a spray apertures plate structure schematic diagram on the utility model spray equipment spray equipment.

Fig. 3 b is the vertical view of the utility model Fig. 3 a spray orifice plate.

Fig. 4 is the utility model Pipe bundle structure schematic diagram.

Fig. 5 is a double segmental baffle II A-A cutaway view among the utility model Fig. 4.

Fig. 6 is a double segmental baffle I B-B cutaway view among the utility model Fig. 4.

The specific embodiment

Shown in accompanying drawing 1: heat exchanger comprises upper tube box 1, lower tube box 2, is arranged on the housing 3 between upper tube box 1 and the lower tube box 2, is arranged on the tube bank 4 of housing 3 inside, is arranged on the spray equipment 5 on upper tube box 1 top.

Described upper tube box 1 is provided with manhole 6 and pulp water outlet 10, and lower tube box 2 is provided with down manhole 7, spray sewage draining exit 8 and pulp water import 9, and housing 3 is provided with cooling water inlet 11 and coolant outlet 12.

Describedly go up manhole 6, manhole 7 is very serious at fouling of heat exchangers down, in the time of can't washing out the dirt that hardens in the heat exchanger tube side with spray equipment 5 high pressure washings, just must manually clean, at this moment open manhole 6 and following manhole 7, the maintenance personal directly enters in the heat exchanger and clears up.

Export 10 pressure drops with pulp water and increase when pulp water import 9 appears in heat exchanger, when pulp water exports problem such as 10 underfeds and temperature rising, be the heat exchanger internal incrustation, stop up serious.5 spray equipments on the heat exchanger directly link to each other with cleaning Vehicle, can block pulp water import 9 this moment, pulp water exports 10 valves, start cleaning Vehicle, with high pressure water washing heat exchanger tube side, open the 12 valve blowdowns of spray sewage draining exit simultaneously, after the water change that spray sewage draining exit 12 is got rid of is limpid, close cleaning Vehicle, close spray sewage draining exit 12 valves, reopen pulp water import 9 and export 10 valves with pulp water, heat exchanger reruns.

Shown in accompanying drawing 2, Fig. 3 a and Fig. 3 b: described spray equipment 5 by the pipe connecting flange 13 that is arranged on upper tube box 1 outside, be arranged on upper tube box 1 inner is connected the horn mouth 14 of pipe connecting flange 13 and is arranged on horn mouth 14 following spray orifice plates 15 form.

Horn mouth 14 on the described spray equipment 5 is in order to make the water under high pressure that goes of ejection be covered with pore on the whole tube sheet.Spray orifice plate 15(on the spray equipment 5 sees Fig. 3 b) be covered with the hole, make as far as possible porose circulation area bigger than the circulation area of spray equipment 5 imports, best more than one times.

Shown in accompanying

drawing

4,5 and 6: the double segmental baffle structure is adopted in described tube bank 4, and tube bank 4 is alternately superposeed to assemble by double segmental baffle I and double segmental baffle II and constitutes.From cooling water inlet 11, evenly be equally distributed in the tube bank 4 with double segmental baffle II after the first double segmental baffle I, exchanging heat pipe has played effective supporting on the one hand, double segmental baffle I, II can make the mobile PARALLEL FLOW that approaches of flowing of shell-side fluid and tube fluid on the other hand, reduced the degree of two kinds of medium cross-flows, so not only heat transfer coefficient can be higher, and pressure drop is lower, reduce the possibility of vibration, made the security of heat exchanger obtain effective assurance.

Claims

1. fountain pulp water heat exchanger, heat exchanger comprises upper tube box (1), lower tube box (2), is arranged on the housing (3) between upper tube box (1) and the lower tube box (2), be arranged on the inner tube bank (4) of housing (3), it is characterized in that: it also comprises a spray equipment (5) that is arranged on upper tube box (1) top, the double segmental baffle structure is adopted in described tube bank (4), and tube bank (4) is alternately superposeed to assemble by double segmental baffle (I) and double segmental baffle (II) and constitutes.

2. a kind of fountain pulp water heat exchanger according to claim 1 is characterized in that: described spray equipment (5) is formed by being arranged on the outside pipe connecting flange (13) of upper tube box (1), being arranged on the horn mouth (14) of upper tube box (1) inner connection pipe connecting flange (13) and being arranged on the following spray orifice plate (15) of horn mouth (14).

3. a kind of fountain pulp water heat exchanger according to claim 1, it is characterized in that: described upper tube box (1) is provided with manhole (6) and pulp water outlet (10), lower tube box (2) is provided with down manhole (7), spray sewage draining exit (8) and pulp water import (9), and housing (3) is provided with cooling water inlet (11) and coolant outlet (12).