CN203772068U - Heat exchanger with on-line back washing capacity and for slag water waste heat - Google Patents
Heat exchanger with on-line back washing capacity and for slag water waste heat Download PDFInfo
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- CN203772068U CN203772068U CN201420101724.0U CN201420101724U CN203772068U CN 203772068 U CN203772068 U CN 203772068U CN 201420101724 U CN201420101724 U CN 201420101724U CN 203772068 U CN203772068 U CN 203772068U
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- pulp water
- water
- heat exchanger
- slag water
- valve
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Abstract
The utility model discloses a heat exchanger with on-line back washing capacity and for slag water waste heat, and belongs to the field of heat exchangers. A main slag water heat exchanger body comprises an upper spiral heat exchange core body and a lower spiral heat exchange core body, a main slag water inlet pipe is connected to a slag water inlet pipe through a valve F1 and connected with an elliptical head through a valve F3 and a back washing inlet pipe connected with the valve F3, meanwhile, a valve F4 is arranged between a back washing outlet pipe and a main slag water outlet pipe, a valve F2 is arranged between the main slag water outlet pipe and a slag water outlet pipe, and a slag water filter and a slag water flash tank arranged at the bottom of the slag water filter are arranged at the lower inlet of a slag water channel of a slag water inlet. According to the heat exchanger, on-line back washing of the heat exchanger is achieved and mutual back washing between back washing and normal heat exchange can be also achieved. The heat exchanger with the on-line back washing capacity and for slag water waste heat has the advantages that the concept is novel and unique, the structural design is compact and reasonable, anti-blocking performance and abrasion resistance are achieved, the service life is prolonged, the heat exchange efficiency is improved greatly, the working performance is stable and reliable, the heat exchanger is convenient to disassemble, assemble, clean and maintain, better humanization is achieved, and the heat exchanger is easy to operate, efficient and energy-saving during heat recovery and suitable for vigorous popularization in the industry, and the like.
Description
Technical field
The utility model relates to a kind of heat transmission equipment, relates to specifically a kind of heat transmission equipment that can carry out backwash in heat exchange being made up of spiral plate.
Background technology
In steel and iron industry production process, every 30～40 minutes refining one stove iron of blast furnace, molten iron enters ladle, and slag is rinsed cooling by the pulp water in pulp water pond, and pulp water is got back to again pulp water pond, slag contains a large amount of heats, pulp water pond temperature is also relatively high, and general summer temp can reach 85 DEG C of left and right, and winter temperature also has 75～80 DEG C, these heats are as reclaimed and be all lost in atmosphere not in time, and the water in pulp water pond also can natural evaporation.So both cause a large amount of losses of heat, brought again wasting of water resource.But the feature of blast furnace slag quenching water is in pulp water, to contain the impurity such as a large amount of glass fibre shape materials, slag, slag, has dissolved again the cold chemical substance of easily separating out of the chances such as calcium metasilicate, makes this heat recovery become a difficult problem.In order to solve described problem, utilize well this part energy, many producers take several different methods, the heat exchanger of various structures form carries out waste heat recovery, but by facts have proved, they all exist certain defect, the frequent blocking channel having, some heat transfer effects do not reach, and what have is not easy practical operation, and what have is not wear-resistant etc.Cause blast furnace pulp water waste heat recovery problem once to have reached an impasse.The patent No. 201020351811.8 discloses a kind of efficient energy-saving slag water heat-exchange device, it can utilize pulp water directly to carry out heat exchange, solve plate type heat exchanger and cannot use the heat exchange of flushing cinder water, overcome pulp water and easily stopped up in device, and heat exchange efficiency problem low and easy to wear.Though but it can regularly carry out backwash to installing inside, must be just can carry out in the idle situation of heat exchanger stopping heat exchange, and prevent from stopping up and to improve effect aspect heat exchange efficiency not very good yet.
Summary of the invention
The purpose of this utility model is to provide a kind of pulp water afterheat heat exchanger that can backwash, be mainly solve in existing heat exchanging apparatus for slag water, exist cannot in device heat exchange, carry out backwash, and blocking-proof result and the undesirable problem of heat exchange efficiency.
The utility model is made up of slag-water heat exchanger main body, ellipse head, conical head, detachable flange bolt combination, the adapter of recirculated water import and export, the total inlet or outlet duct of pulp water, pulp water import and export pipe and backwash import and export pipe, manhole, bearing combination, water conservancy diversion water box, pulp water flash vessel, pulp water filter, pulp water backwash distribution device and valve, wherein said slag-water heat exchanger main body is made up of upper and lower two four-way spiral heat exchange core bodies, and described pulp water main entrance pipe is through valve F
1to heat exchanger pulp water inlet tube, manage also through valve F this pulp water main entrance
3and connect backwash inlet tube be connected with ellipse head, while between backwash outlet and pulp water general export pipe, valve F is set
4, another valve F is set between pulp water general export pipe and pulp water outlet
2, and establish the pulp water flash vessel of pulp water filter and bottom thereof in the porch, pulp water passage bottom of heat exchanger pulp water import.
In described slag-water heat exchanger main body, between upper and lower two spiral heat exchange core bodies, be connected by the set semicircle water conservancy diversion water box in housing both sides.
Described pulp water flash vessel is to be made up of another horizontal baffle in the corresponding set longitudinal baffle of pulp water inlet tube of pulp water filter bottom and conical head.
The utlity model has following advantage and good effect:
Because this heat exchanger is provided with the combination of pulp water inlet/outlet pipe, backwash inlet/outlet pipe and valve, by switch valve, can not only realize the online backwashing of heat exchanger, and can realize the backwash each other between backwash and normal heat exchange.No matter all can be by the slag that hangs over spiral heat exchange core body outside along with pulp water is discharged smoothly in backwash or normal heat transfer process.Add the further obstruct to pulp water import slag, slag and glass fibre shape material of pulp water filter, pulp water flash vessel and pulp water distributor, and enter pulp water pond by backwash tube and keep clean in pulp water passage, make heat exchanger channels more unimpeded, thereby effectively prevent the obstruction of pulp water passage, the wearing and tearing to spiral heat exchange core body are obviously reduced, effectively extend service life of equipment, significantly improved heat exchange efficiency.Meanwhile, the slag-water heat exchanger main body being made up of spiral heat exchange core body stirs to increasing considerably with interior support posts of flow channel length and heat exchange area the turbulent flow forming, and heat-transfer effect and heat exchange efficiency are further enhanced.Moreover, this utility model also has the novel uniqueness of inventive concept, structural design compact and reasonable, stable and reliable working performance, dismounting clean and maintenance convenience, more humane easy operating, energy-efficient, the suitable industry of heat recovery and the advantage such as widelys popularize.
brief description of the drawings:
Fig. 1 is the utility model overall structure schematic diagram;
Fig. 2 is the left view of Fig. 1;
Fig. 3 is the top view of Fig. 1;
Fig. 4 is the A-A cutaway view (while normally operation) of Fig. 2;
Fig. 5 is the A-A cutaway view (when backwash) of Fig. 2;
Fig. 6 is the B-B cutaway view of Fig. 4;
Fig. 7 is the C-C cutaway view of Fig. 4;
Fig. 8 is the partial enlarged drawing of Fig. 4;
Fig. 9 is pulp water filter schematic diagram;
Figure 10 is backwash distribution device schematic diagram.
Detailed description of the invention
By shown in Fig. 1-Figure 10 can online backwashing pulp water afterheat heat exchanger be a kind of novel heat exchange equipment that effectively utilizes blast furnace slag quenching water waste heat to carry out heat exchange, its middle part is slag-water heat exchanger main body 8, be distributed with upper and lower two four-way spiral heat exchange core bodies, 17,21 in the inside of slag-water heat exchanger main body 8, described spiral heat exchange core body 17,21 is connected by the set semicircle water conservancy diversion water box 7 in housing both sides.Take over 16,15 with recirculated water import and export respectively is again connected simultaneously.Described slag-water heat exchanger main body 8 tops connect ellipse head 10 by detachable flange bolt combination 9; Bottom connects conical head 2 by detachable flange bolt combination 3; Outer setting has the convenient manhole 11 of observing and four bearing combinations 12, and overall heat exchange device and medium-weight are supported in described bearing combination 12.Pulp water inlet tube 4, pulp water outlet 13, recirculated water inlet tube 16, circulating water outlet pipe 15 are installed again in slag-water heat exchanger main body 8.The pulp water backwash distribution device 22 that pulp water backwash inlet tube 6 and corresponding backwash inlet tube 6 arrange is installed on the top of ellipse head 10.The bottom of conical head 2 is provided with pulp water backwash outlet 1, is provided with another longitudinal baffle 19 corresponding with it in horizontal baffle 18 and pulp water inlet tube 4 and forms pulp water flash vessel in it.And pulp water filter 20 is established in porch, pulp water passage bottom in pulp water inlet tube 4.Pulp water main entrance pipe 5 is by valve F
1connect pulp water inlet tube 4, simultaneously through valve F
3be connected with pulp water backwash inlet tube 6.And pulp water outlet 13 is through valve F
2merge into pulp water general export pipe 14 with pulp water backwash outlet 1.And between backwash outlet 1 and pulp water general export pipe 14, another valve F is also set
4.
When the utility model is normally worked, valve F
1, F
2open valve F
3, F
4close, pulp water manages 5 through valve F from pulp water main entrance
1enter heat exchanger with the bottom pulp water inlet tube 4 of slag-water heat exchanger main body 8, the dilatation reduction of speed of baffle plate 19 in pulp water flash vessel, sub-fraction pulp water directly enters pulp water heat exchanger channels by pulp water filter 20, most of pulp water is downward another baffle plate 18 bafflings reduction of speed again in pulp water flash vessel, make slag heavier in pulp water, the particles such as slag, under the effect of gravity and centrifugal force, be settled down to the bottom of conical head 2, pulp water after sedimentation upwards flows, by pulp water filter 20, the glass fibre shape material in pulp water being filtered to (because the aperture on pulp water filter 20 is suitable with glass fibre shape material length) goes out, then enter pulp water heat exchanger channels.Pulp water first passes through lower helical layer heat exchange core body 21, by upper helical layer heat exchange core body 17 and recirculated water heat exchange, then through slag-water heat exchanger main body 8 top pulp water outlet 13 and valve F
2from pulp water general export pipe 14 outflow heat exchangers to pulp water pond.Recirculated water enters circulating water channel by the recirculated water inlet connection 16 of slag-water heat exchanger main body 8 bottoms, two passages of lower helical layer heat exchange core body 21 flow from inside to outside, carry out heat exchange with pulp water, then enter upper helical layer heat exchange core body 17 through both sides water conservancy diversion water box 7, and ecto-entad flows, carry out heat exchange with pulp water again, in center, two strands of recirculated waters pool together, and take over 15 by heat recovery by the circulating water outlet on top.These heats can be used in factory and residence district heat supply in the winter time, can be bathing summer and life provides hot water.
In the time implementing backwash, by valve F
1, F
2close valve F
3, F
4open, pulp water manages 5 through valve F from pulp water main entrance
3enter ellipse head 10 with pulp water backwash inlet tube 6, through pulp water backwash distribution device 22, make pulp water be evenly distributed on pulp water heat exchanger channels, first rinse upper strata spiral heat exchange core body 17 from top to bottom, rinse again lower helical layer heat exchange core body 21, being attached to spiral heat exchange core body 17, the glass fibre shape material that the particle that 21 outer surfaces are tiny and pulp water filter 20 filter out rinses and comes together in conical head 2, add that slag that normal operation settles down and slag granules are in the lump by pulp water backwash outlet 1 and valve F4, through pulp water general export pipe 14 outflow heat exchangers to pulp water pond.Meanwhile, the heat exchange of realization and spiral heat exchange core body 17,21 in backwash process.
As can be seen here, the utility model can not only be realized and do not shut down automatic on-line backwash by switch valve, and can realize the backwash each other between backwash and normal heat exchange.This is that prior art is incomparable.It is by more clean the pulp water that makes to enter heat exchanger channels, passage is more unobstructed, thereby effectively avoid stopping up and reduce slag and the wearing and tearing of slag to spiral heat exchange core body, in obviously improving heat transfer coefficient and heat exchange efficiency, effectively extending heat exchanger mechanical strength and service life.
Claims (3)
1. a pulp water afterheat heat exchanger that can online backwashing, takes over (16,15), the total inlet or outlet duct of pulp water (5,14), pulp water import and export pipe (4,13) and backwash import and export pipe (6,1), the combination of manhole (11) bearing (12), water conservancy diversion water box (7), pulp water flash vessel, pulp water filter (20), pulp water backwash distribution device (22) and valve (F by slag-water heat exchanger main body (8), ellipse head (10), conical head (2), detachable flange bolt combination (3,9), recirculated water import and export
1-F
4) form, it is characterized in that: described slag-water heat exchanger main body (8) is made up of upper and lower two four-way spiral heat exchange core bodies (17,21), described pulp water main entrance pipe (5) is through valve (F
1) to heat exchanger pulp water inlet tube (4), this pulp water main entrance pipe (5) is also through valve (F
3) and connect backwash inlet tube (6) be connected with ellipse head (10), while between backwash outlet (1) and pulp water general export pipe (14), valve (F is set
4), between pulp water general export pipe (14) and pulp water outlet (13), another valve (F is set
2), and establish the pulp water flash vessel of pulp water filter (20) and bottom thereof in the porch, pulp water passage bottom of heat exchanger pulp water import.
According to described in claim 1 can online backwashing pulp water afterheat heat exchanger, it is characterized in that: in described slag-water heat exchanger main body (8), between upper and lower two spiral heat exchange core bodies (17,21), be connected by the set semicircle water conservancy diversion water boxes in housing both sides (7).
According to described in claim 1 can online backwashing pulp water afterheat heat exchanger, it is characterized in that: described pulp water flash vessel is to be made up of pulp water filter (20) the bottom set longitudinal baffle of corresponding pulp water inlet tube (4) (19) and another horizontal baffle (18) in conical head (2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101724.0U CN203772068U (en) | 2014-03-07 | 2014-03-07 | Heat exchanger with on-line back washing capacity and for slag water waste heat |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420101724.0U CN203772068U (en) | 2014-03-07 | 2014-03-07 | Heat exchanger with on-line back washing capacity and for slag water waste heat |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203772068U true CN203772068U (en) | 2014-08-13 |
Family
ID=51289252
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420101724.0U Expired - Fee Related CN203772068U (en) | 2014-03-07 | 2014-03-07 | Heat exchanger with on-line back washing capacity and for slag water waste heat |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203772068U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104534901A (en) * | 2014-12-24 | 2015-04-22 | 无锡市南长区科技创业服务中心 | Heat exchanger with blockage prevention function |
| CN104896970A (en) * | 2014-03-07 | 2015-09-09 | 四平市中亚热工环保设备制造有限公司 | On-line back flushing residue water afterheat heat exchange device |
-
2014
- 2014-03-07 CN CN201420101724.0U patent/CN203772068U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104896970A (en) * | 2014-03-07 | 2015-09-09 | 四平市中亚热工环保设备制造有限公司 | On-line back flushing residue water afterheat heat exchange device |
| CN104896970B (en) * | 2014-03-07 | 2017-01-11 | 四平市中亚热工环保设备制造有限公司 | On-line back flushing residue water afterheat heat exchange device |
| CN104534901A (en) * | 2014-12-24 | 2015-04-22 | 无锡市南长区科技创业服务中心 | Heat exchanger with blockage prevention function |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140813 Termination date: 20160307 |