CN105588107A - Deslagging waste heat utilization device for circulating fluidized bed boiler - Google Patents
Deslagging waste heat utilization device for circulating fluidized bed boiler Download PDFInfo
- Publication number
- CN105588107A CN105588107A CN201610050610.1A CN201610050610A CN105588107A CN 105588107 A CN105588107 A CN 105588107A CN 201610050610 A CN201610050610 A CN 201610050610A CN 105588107 A CN105588107 A CN 105588107A
- Authority
- CN
- China
- Prior art keywords
- deslagging
- pipe
- heat exchanger
- tube
- exchanger tube
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000002918 waste heat Substances 0.000 title abstract description 9
- 239000000498 cooling water Substances 0.000 claims abstract description 27
- 238000001816 cooling Methods 0.000 claims abstract description 17
- 238000010438 heat treatment Methods 0.000 claims abstract description 8
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims description 75
- 239000000463 material Substances 0.000 claims description 21
- 239000010884 boiler slag Substances 0.000 claims description 10
- 239000002893 slag Substances 0.000 abstract description 78
- 230000003014 reinforcing effect Effects 0.000 abstract description 4
- 238000009826 distribution Methods 0.000 abstract description 3
- QGZKDVFQNNGYKY-UHFFFAOYSA-N Ammonia Chemical compound N QGZKDVFQNNGYKY-UHFFFAOYSA-N 0.000 description 22
- 235000011114 ammonium hydroxide Nutrition 0.000 description 19
- 230000003020 moisturizing effect Effects 0.000 description 13
- VHUUQVKOLVNVRT-UHFFFAOYSA-N Ammonium hydroxide Chemical compound [NH4+].[OH-] VHUUQVKOLVNVRT-UHFFFAOYSA-N 0.000 description 12
- 230000000694 effects Effects 0.000 description 12
- 229910021529 ammonia Inorganic materials 0.000 description 11
- 239000002956 ash Substances 0.000 description 8
- 239000007788 liquid Substances 0.000 description 7
- 230000018984 mastication Effects 0.000 description 5
- 238000010077 mastication Methods 0.000 description 5
- 210000004907 gland Anatomy 0.000 description 4
- 230000033001 locomotion Effects 0.000 description 4
- 238000002360 preparation method Methods 0.000 description 4
- 238000005057 refrigeration Methods 0.000 description 4
- 238000005096 rolling process Methods 0.000 description 4
- 238000013461 design Methods 0.000 description 3
- 238000011049 filling Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000008569 process Effects 0.000 description 3
- 230000009467 reduction Effects 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 239000006096 absorbing agent Substances 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 2
- 238000009835 boiling Methods 0.000 description 2
- 230000008878 coupling Effects 0.000 description 2
- 238000010168 coupling process Methods 0.000 description 2
- 238000005859 coupling reaction Methods 0.000 description 2
- 238000007599 discharging Methods 0.000 description 2
- 230000005611 electricity Effects 0.000 description 2
- 238000007710 freezing Methods 0.000 description 2
- 230000008014 freezing Effects 0.000 description 2
- 230000008676 import Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 238000005457 optimization Methods 0.000 description 2
- 238000010992 reflux Methods 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 230000000630 rising effect Effects 0.000 description 2
- 230000001932 seasonal effect Effects 0.000 description 2
- 239000002699 waste material Substances 0.000 description 2
- 229910000975 Carbon steel Inorganic materials 0.000 description 1
- 230000002159 abnormal effect Effects 0.000 description 1
- 230000002745 absorbent Effects 0.000 description 1
- 239000002250 absorbent Substances 0.000 description 1
- 230000009471 action Effects 0.000 description 1
- 230000001464 adherent effect Effects 0.000 description 1
- 238000013459 approach Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 239000010962 carbon steel Substances 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 239000003638 chemical reducing agent Substances 0.000 description 1
- 239000003245 coal Substances 0.000 description 1
- 238000002485 combustion reaction Methods 0.000 description 1
- 230000008602 contraction Effects 0.000 description 1
- 230000001276 controlling effect Effects 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 238000000151 deposition Methods 0.000 description 1
- 230000008021 deposition Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000008020 evaporation Effects 0.000 description 1
- 238000001704 evaporation Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 238000011010 flushing procedure Methods 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 238000002309 gasification Methods 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 230000001007 puffing effect Effects 0.000 description 1
- 210000000664 rectum Anatomy 0.000 description 1
- 239000003507 refrigerant Substances 0.000 description 1
- 238000004513 sizing Methods 0.000 description 1
- 239000008234 soft water Substances 0.000 description 1
- 230000006641 stabilisation Effects 0.000 description 1
- 238000011105 stabilization Methods 0.000 description 1
- 238000005728 strengthening Methods 0.000 description 1
- 238000002207 thermal evaporation Methods 0.000 description 1
- 238000012546 transfer Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F22—STEAM GENERATION
- F22D—PREHEATING, OR ACCUMULATING PREHEATED, FEED-WATER FOR STEAM GENERATION; FEED-WATER SUPPLY FOR STEAM GENERATION; CONTROLLING WATER LEVEL FOR STEAM GENERATION; AUXILIARY DEVICES FOR PROMOTING WATER CIRCULATION WITHIN STEAM BOILERS
- F22D1/00—Feed-water heaters, i.e. economisers or like preheaters
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F23—COMBUSTION APPARATUS; COMBUSTION PROCESSES
- F23C—METHODS OR APPARATUS FOR COMBUSTION USING FLUID FUEL OR SOLID FUEL SUSPENDED IN A CARRIER GAS OR AIR
- F23C10/00—Fluidised bed combustion apparatus
- F23C10/18—Details; Accessories
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Combustion & Propulsion (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Heat-Exchange Devices With Radiators And Conduit Assemblies (AREA)
Abstract
The invention discloses a deslagging waste heat utilization device for a circulating fluidized bed boiler. By the adoption of the deslagging waste heat utilization device for the circulating fluidized bed boiler, the situations that heat deformation of a deslagging pipe is caused, and leakage is also caused due to the fact that an inner pipe is abraded by bottom slag are prevented. The deslagging waste heat utilization device for the circulating fluidized bed boiler comprises a deslagging hole, a deslagging connector, a collection header, a deslagging heat exchange pipe, a plurality of reinforcing ribbed plates, a distribution header, a cooling water inlet pipe, a cooling water outlet pipe, a three-dimensional expansion joint, a cooling air inlet, the deslagging pipe, a manual gate valve, an electric gate valve, an accident deslagging pipe, an underpant-shaped tee joint, an outer pipe, the inner pipe, a plurality of guide plates, pins and guide cavities. The deslagging connector is in a cone shape. The upper end opening of the deslagging connector is connected with the boiler deslagging hole, and the lower end opening of the deslagging connector is connected with the upper end of the collection header. An annular cavity is formed by the deslagging heat exchange pipe by concentrically sleeving the small-diameter inner pipe with the large-diameter outer pipe. The guide plates with the same width are welded between the wall of the inner pipe and the wall of the outer pipe, and the annular cavity is equally divided into the guide cavities not communicating with one another in the circumferential direction by the guide plates. The annular reinforcing ribbed plates which can prevent the deslagging heat exchange pipe against heating expansion and deformation are arranged on the outer wall surface of the outer pipe of the deslagging heat exchange pipe.
Description
Technical field
The present invention relates to CFBB field, refer to especially a kind of CFBB deslagging waste heatUse device.
Background technology
CFBB is in operation and presses into controlling burner hearth bed, prevents large granular materials deposition, keeps goodGood fluidized state, avoids slagging scorification, must in time discharge the end from the mud hole of boiler bottom or lower sideSlag. The end quantity of slag of discharging in CFBB actual motion is large, complicated component, poor fluidity, particleThicker, may contain a lot of bulky grain foreign matters, temperature is high, and temperature approaches combustion temperature in hearth, with in a large numberPhysical thermal, if without cooling, end slag physical thermal loss can reach more than 1%, and end slag excess Temperature is not yetBe beneficial to the safe and stable operation of subsequent processing device. UTILIZATION OF VESIDUAL HEAT IN master to CFB Slag at presentIf by cold slag machine, wherein because cylinder type cold slag machine latus rectum is large, be difficult for stopping up, to lime-ash change of granularity notSensitivity, obtains greatly especially to slag strong adaptability at the bottom of bulky grain, thereby at Chinese large-sized CFBBAmount supports the use. But cylinder type cold slag machine because of the heat exchange between end slag and water-cooled cylindrical shell be mainly contact heat exchange,Heat transfer coefficient is relatively low, the end slag disposal ability of cold slag machine is restricted, to the safety and stability warp of boilerJi operation impacts. In addition, between mud hole and cold slag machine, be connected with one section of scum pipe, visible at presentScum pipe version mainly contain two kinds, one is directly to smear wear-resistant castable at inside pipe wall, Yi ZhongshiPipe in along the circumferential direction arrange film-type water-cooling heat exchanger tube near tube wall, then at film-type water-cooling heat exchanger tube towards pipeThe direction at center is welded some pins, then on pin, smears wear-resistant castable, and establishes in concentric reducer positionPut accident scum pipe. The first scum pipe in actual use ubiquity stop up, burn red, wearing and tearing reveal,The problems such as distortion, cause boiler to fall to exert oneself the accident of even blowing out. The second scum pipe complex structure, pulp waterFollowing current heat exchange, thermal resistance are large, to the poor effect that initially cools of end slag.
Summary of the invention
The present invention seeks to overcome the deficiency of above-mentioned prior art, proposition one can solve scum pipe thermal deformation and askTopic, prevent that inner tube from being damaged by end sizing and leak, reduce the CFBB deslagging waste heat profit of end slag temperatureWith device.
CFBB deslagging residual heat using device of the present invention comprises mud hole, deslagging interface, collects connectionCase, deslagging heat exchanger tube, hanger, reinforcing floor, distribute header, thermometer, pressure gauge, electric check valve,Cooling water inlet pipe, three-dimensional expansion joint, cooling air inlet, scum pipe, manually gate valve, electric brake plate valve,Gusset plate, accident scum pipe, Breeches type threeway, cooling water outlet pipe, outer tube, inner tube, deflector, pinNail, water conservancy diversion chamber, heater, collect female pipe, cold slag machine, distribute female pipe, electric control valve, shunt valve,Gland heater, safety valve, air supply pipe, liquid back pipe, accident draining valve, the female pipe of moisturizing, circulating pump, contraryThe only female pipe of valve and backwater; Deslagging interface is conical in shape, and upper port diameter is greater than lower port diameter, upper portBe connected with boiler slag removal hole, lower port with collect header upper end and be connected; Deslagging heat exchanger tube is by large diameter outer tubeBe fitted together formation annular compartment with the inner tube concentric locking collar of minor diameter; Annular compartment is along the circumferential direction divided intoSome part, between inside and outside tube wall, weld and several annular compartment is along the circumferential direction divided into several phases not mutuallyThe wide deflector of logical water conservancy diversion chamber, deflector and inner and outer pipes are isometric, thereby if annular compartment are divided intoA dry not connected water conservancy diversion chamber; On the inner tube wall face of deslagging heat exchanger tube, weld several pins, at pinOn nail and remaining inner tube wall face, hang and smear corrosive-proof plastic material, another of corrosive-proof plastic material thickness and pinHold level with both hands together, and will expose pin head; On the outer tube outer wall face of deslagging heat exchanger tube, installing several annulars reinforcesFloor, prevents the distortion of deslagging heat exchanger tube expanded by heating; On the outer tube outer wall face of deslagging heat exchanger tube, installing one hangsEar, is connected with the steelframe of boiler by high-strength spring; The upper end of deslagging heat exchanger tube with collect header lower end phaseBe communicated with, a side of collecting header is connected with cooling water outlet pipe, cooling water outlet pipe be provided with pressure gauge,Thermometer and electric check valve; The lower end of deslagging heat exchanger tube is connected with distributing header upper end, distribution headerOne side is connected with cooling water inlet pipe, and cooling water inlet pipe is provided with electric check valve, pressure gauge, temperatureMeter; Distribute header lower end to be connected with three-dimensional expansion joint upper end, three-dimensional expansion joint lower end and Breeches type threeway phaseConnect, the inside tube of Breeches type threeway is connected with accident scum pipe, is provided with manual flashboard on accident scum pipeValve; The outboard tube of Breeches type threeway is connected with scum pipe, is disposed with manually gate valve and electricity on scum pipeMoving slide valve; The crotch of Breeches type threeway is welded with gusset plate. The interior outside of Breeches type threeway is provided with coldBut wind entrance, under deslagging abnormal conditions, opens cold-air flap and carries out power-assisted and cooling.
Apparatus of the present invention enter deslagging heat exchanger tube and distribute the cooling water of header from bottom to top to flow through water conservancy diversion chamber,The high temperature bottom slag that enters deslagging heat exchanger tube slag side from top to bottom flows along corrosive-proof plastic material wall, cooling waterForm countercurrent flow with high temperature bottom slag, add the head welding on the inner tube wall of deslagging heat exchanger tube and smearThe enhanced heat exchange effect of some pins of flushing of corrosive-proof plastic material wall, make the cooling of deslagging heat exchanger tube of flowing throughWater has larger temperature rise, very obvious to the effect that cools of deslagging, can thoroughly solve existing simple scum pipeBurnt the problem of red and thermal deformation; The inner tube wall of deslagging heat exchanger tube hangs the corrosive-proof plastic material of smearing by end slagKeep apart completely with inner tube, stopped the problem that inner tube is leaked by the direct contact wear of end slag; By increasingThe diameter of inner pipe of scum pipe, rationally adjusts scum pipe setting angle, can avoid the obstruction of end slag in scum pipeProblem; In boiler operatiopn, cooling water inflow and the flow velocity of the deslagging heat exchanger tube of flowing through can pass in and out by cooling waterThe electric check valves of installing on water pipe etc. are adjusted flexibly, to realize the object that maximizes slag temperature at the bottom of cooling reduction.
Utilize the condensate water of deslagging waste heat apparatus heating therrmodynamic system. From the condensate water of steam exhaust device through condensingWater pump enters after gland heater heating, then through distributing female pipe to enter respectively some deslagging heat exchanger tubes in parallelWater side and the water side of some cold slag machines in parallel; Entering deslagging heat exchanger tube distributes the condensate water of header through leadingStream chamber from bottom to top flows, the end slag that enters deslagging heat exchanger tube along the wall of corrosive-proof plastic material by upper andCurrent downflow, form countercurrent flow, adds the head that welds on the inner tube wall of deslagging heat exchanger tube and smearThe enhanced heat exchange effect of some pins that corrosive-proof plastic material wall flushes, the cooling water of the deslagging heat exchanger tube that makes to flow throughThere is larger temperature rise, very obvious to the effect that cools of deslagging; However, flow out deslagging heat exchanger tubeEnd slag still has higher temperature, and when it enters after cold slag machine, broken in cold slag machine inner edge rolling, limit is to cold slag machineOutlet motion, meanwhile, the condensate water that enters cold slag machine water side is further filled with following current or reflux typeDivide the heat that absorbs slag remnants; Because of the condensate water that enters cold slag machine and the condensate water that enters deslagging heat exchanger tube allFrom distributing female pipe, so initial temperature is identical, make the temperature difference between pulp water in cold slag machine certainly will be also larger,Be conducive to heat exchange, add the rolling of slag in cylinder, the motion such as discrete and adherent, make to be positioned at all the time rowThe entrained physics sensible heat of slag in the middle of slag heat exchanger tube also farthest discharges in cold slag machine,Thereby reach cooling reduction slag temperature, make cold slag machine outlet slag temperature be down to the object of safe temperature scope;Mix through collecting female pipe from the hot water of each deslagging heat exchanger tube and the outflow of cylinder type cold slag machine water side outlet, according to itThe heater water side that temperature and pressure returns coupling continues thermodynamic cycle; Flow through deslagging heat exchanger tube and cold slag machineCondensing water flow and flow velocity can flexible modulation, coordinated, is down to boiler slag removal temperature optimization minimum,Farthest improve the economy of therrmodynamic system.
Utilize the thermal source of deslagging waste heat apparatus as ammonia water absorbing heat pump. Soft from demineralized water preparation systemChange water carries out countercurrent flow by deslagging heat exchanger tube and high temperature bottom slag and becomes hot mastication water, and hot mastication water entersEnter in the generator of ammonia water absorbing heat pump ammoniacal liquor concentrated solution is heated, after low boiling solute ammonia is heated, steamSend out and become ammonia steam and confess from air supply pipe, ammonia steam enters ammonia water absorbing heat pump as cold-producing mediumRealize freezing and Winter heat supply the summer in power station, the ammonia after work and ammoniacal liquor weak solution are mixed into after concentrated solutionThe heat exchanger of again getting back to ammonia water absorbing heat pump through liquid back pipe is heated, and so forth circulation. Hot mastication waterIn generator, after heat release, become low temperature softening water and discharge, again getting back to deslagging heat exchanger tube by circulating pump and inhaleHeat, generator heat release, so moves in circles. Both can solve deslagging heat exchanger tube by this system and burn the problems such as red,Improve cold slag machine and exert oneself, also can meet refrigeration and the heat demand of power station Various Seasonal, improve the heat warp of full factoryJi property.
Brief description of the drawings
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, below will be to implementingIn example or description of the Prior Art, the accompanying drawing of required use is briefly described, and apparently, the following describesIn accompanying drawing be only some embodiments of the present invention, for those of ordinary skill in the art, do not payingGo out under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is structural representation of the present invention;
Fig. 2 is the partial sectional view along A-A line in Fig. 1;
Fig. 3 is bootstrap system figure of the present invention;
Fig. 4 is ammonia water absorbing source heat pump heat system diagram of the present invention.
In figure: 1, mud hole, 2, deslagging interface, 3, collect header, 4, deslagging heat exchanger tube, 5, hangEar, 6, reinforce floor, 7, distribute header, 8, thermometer, 9, pressure gauge, 10, electric check valve,11, cooling water inlet pipe, 12, three-dimensional expansion joint, 13, cooling air inlet, 14, scum pipe, 15, handMoving slide valve, 16, electric brake plate valve, 17, gusset plate, 18, accident scum pipe, 19, Breeches type threeway,20, cooling water outlet pipe, 21, outer tube, 22, inner tube, 23, deflector, 24, pin, 25, water conservancy diversionChamber, 26, corrosive-proof plastic material, 27, heater, 28, collect female pipe, 29, cold slag machine, 30, distributeFemale pipe, 31, electric control valve, 32, shunt valve, 33, gland heater, 34, safety valve, 35, supplyTracheae, 36, liquid back pipe, 37, generator, 38, accident draining valve, 39, trench, 40, exhaust-valve,41, the female pipe of moisturizing, 42, circulating pump, 43, non-return valve, 44, the female pipe of backwater.
Detailed description of the invention
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is carried out clearlyChu, intactly description, obviously, described embodiment is only the present invention's part embodiment, instead ofWhole embodiment. Based on the embodiment in the present invention, those of ordinary skill in the art are not making creationThe every other embodiment obtaining under property work prerequisite, belongs to the scope of protection of the invention.
As Figure 1-4, the CFBB deslagging residual heat using device in embodiment, deslagging interface 2For conical in shape, upper port diameter is greater than lower port diameter, and upper port is connected with boiler slag removal hole 1, lower endMouthful with collect header 3 upper ends and be connected; Deslagging heat exchanger tube 4 is by the inner tube 22 of large diameter outer tube 21 and minor diameterConcentric locking collar is fitted together, and forms annular compartment; Annular compartment is along the circumferential direction divided into some part, oftenBetween a outer wall of inner tube 22 and the inwall of outer tube 21, weld a wide deflector 23, deflector23 is isometric with inner tube 22 and outer tube 21, thereby annular compartment is divided into several not connected diversion cavityChamber 25; On inner tube 22 internal faces of deslagging heat exchanger tube 4, weld several pins 24, in pin 24 and all the otherInner tube 22 internal faces on hang and smear corrosive-proof plastic material 26, corrosive-proof plastic material 26 thickness and pin 24 anotherOne end is concordant, and will expose the head of pin 24; If installing in outer tube 21 outside wall surface of deslagging heat exchanger tube 4Dry annular reinforced floor 6, prevents the 4 expanded by heating distortion of deslagging heat exchanger tube; The outer tube of deslagging heat exchanger tube 4In 21 outside wall surface, install 1 hanger 5, be connected with the steelframe of boiler by high-strength spring; Deslagging heat exchanger tube 4Upper end with collect header 3 lower ends and be connected, a side of collecting header 3 is connected with cooling water outlet pipe 20,Cooling water outlet pipe 20 is provided with pressure gauge 9, thermometer 8 and electric check valve 10; Deslagging heat exchanger tube 4Lower end is connected with distributing header 7 upper ends, distributes a side of header 7 to be connected with cooling water inlet pipe 11,Cooling water inlet pipe 11 is provided with electric check valve 10, pressure gauge 9, thermometer 8; Distribute header 7 lower endsBe connected with three-dimensional expansion joint 12 upper ends, three-dimensional expansion joint 12 lower ends are connected with Breeches type threeway 19, trousersThe inside tube of vent in the sides of a garment type threeway 19 is connected with accident scum pipe 18, is provided with manual flashboard on accident scum pipe 18Valve 15; The outboard tube of Breeches type threeway 19 is connected with scum pipe 14, is disposed with manually on scum pipe 14Slide valve 15 and electric brake plate valve 16; The crotch of Breeches type threeway 19 is welded with gusset plate 17.
In order to meet to greatest extent mating of 1 time quantity of slag of deslagging heat exchanger tube 4 and boiler slag removal hole, ensure lime-ashThe smooth and easy deslagging heat exchanger tube 4 that drains into, deslagging interface 2 is bell mouth shape, and upper port diameter is greater than lower port diameter,Its upper port is connected with boiler slag removal hole 1, lower port with collect header 3 upper ends and be connected.
Three-dimensional expansion joint 12 is arranged on and distributes between header 7 and Breeches type threeway 19, shrinks by himselfAnd expansion character, meet contraction and the expansion of deslagging heat exchanger tube 4 in running. Three-dimensional expansion joint 12 timesEnd is connected with Breeches type threeway 19, and the crotch of Breeches type threeway 19 just leans on inner to three-dimensional expansion joint 12,Can effectively carry out lime-ash distribution, make lime-ash fall into smoothly scum pipe 14, prevent that lime-ash from stopping up at crotch. TrousersThe crotch of vent in the sides of a garment type threeway 19 is welded with gusset plate 17, avoids long-term operation lime-ash to wear and tear to crotch.
The inside tube of Breeches type threeway 19 is connected with accident scum pipe 18, on accident scum pipe 18, is provided with handMoving slide valve; The outboard tube of Breeches type threeway 19 is connected with scum pipe 14, on scum pipe 14, is disposed withManually gate valve 15 and electric brake plate valve 16. Under accident condition, lime-ash is from manually flashboard of accident scum pipe 18 warpsValve 15 is discharged, and while normally operation, lime-ash discharges through manually gate valve 15, electric brake plate valve 16 from scum pipe 14To boiler cold slag machine 29. The interior outside of Breeches type threeway 19 is provided with cooling air inlet 13, different at deslaggingUnder reason condition, open cold-air flap and carry out power-assisted and cooling.
Deslagging heat exchanger tube 4 is fitted together by major diameter outer tube 21 and minor diameter inner tube 22 concentric locking collars, is oneTube-in-tube structure, forms annular compartment, annular compartment is along the circumferential direction divided into some part, at every portionBetween the inwall of the outer wall of inner tube 22 and outer tube 21, weld a wide deflector 23, deflector 23 with inPipe 22 and outer tube 21 are isometric, thereby annular compartment is divided into several not connected water conservancy diversion chambers 25;On inner tube 22 internal faces of deslagging heat exchanger tube 4, weld several pins 24, in pin 24 and remaining inner tubeOn 22 internal faces, hang and smear corrosive-proof plastic material 26, another of corrosive-proof plastic material 26 thickness and pin 24 held level with both handsTogether, and will expose the head of pin 24; The pin 24 welding on inner tube 22 internal faces of deslagging heat exchanger tube 4With hang the corrosive-proof plastic material 26 of smearing, can make the inner tube 22 of deslagging heat exchanger tube 4 strengthen wearability, and will inPipe 22 is kept apart completely with end slag, has stopped the problem that inner tube is leaked by the direct contact wear of end slag, improvesThe service life of deslagging heat exchanger tube 4; One end of pin 24 is welded on the internal face of inner tube 22, anotherIt is concordant that end and corrosive-proof plastic material 26 are smeared, and expose pin 24 heads, makes pin 24 play enhanced heat exchangeEffect, thus the cooling water of the deslagging heat exchanger tube 4 that makes to flow through has larger temperature rise, to the effect that cools of deslaggingVery obvious, prevent that deslagging heat exchanger tube 4 from burning red stain shape in running.
Deflector 23 both can make cooling water interior mobile in order along water conservancy diversion chamber 25 at deslagging heat exchanger tube 4, playedThe effect that strengthening lime-ash and cooling water conduct heat, can play again the effect of reinforcing outer tube 21 and inner tube 22, ensuresDeslagging heat exchanger tube 4 long-plays do not deform.
After condensate pump enters gland heater 33 heating, flow through successively 1 from the condensate water of steam exhaust device31 and 1 electric check valve 10 of 10,1 electric control valve of individual electric check valve enters and distributes female pipe 30.For guaranteeing security of operation, between the import of anteposition electric check valve and the outlet of rear position electric check valve, set up32 and 1 electric check valve 10 of a shunt valve. Electric check valve 10 in bypass is at electric control valve31 enable while breaking down. From distributing the condensate water that female pipe 30 flows out to enter respectively through cooling water inlet pipe 11Some deslagging heat exchanger tube 4 water sides in parallel and some cold slag machine 29 water sides in parallel. At deslagging heat exchanger tube4 and the water route of cold slag machine 29 import and export and be respectively equipped with electric check valve 10. The radical of deslagging heat exchanger tube 4 and coldThe number of units of slag machine 29 is identical, and the number of units of cold slag machine 29 is determined by boiler capacity and design coal. Deslagging changesThe position of heat pipe 4 between boiler slag removal hole 1 and cold slag machine 29, the condensate water that enters deslagging heat exchanger tube 4From bottom to top flow through water conservancy diversion chamber 25, enter the end slag of deslagging heat exchanger tube 4 along corrosive-proof plastic material 26Wall from top to bottom flow, form countercurrent flow, because now condensate water and slag discharge room exist higher temperatures poor,The head welding on inner tube 22 walls of deslagging heat exchanger tube 4 if add flushes with corrosive-proof plastic material 26 wallsThe enhanced heat exchange effect of dry pin 24, the condensate water of the deslagging heat exchanger tube that makes to flow through has larger temperature rise, to deslaggingThe effect that cools is very obvious. However, the end slag that flows out deslagging heat exchanger tube 4 still has higher temperature,When it enters after cylinder type cold slag machine 29, under the circumferential rotary action of cylinder type cold slag machine 29, slag because ofBeing impacted, to act on cylinder type cold slag machine 29 inner edges rollings broken for power, abrasive power etc., and limit is to cold slag machine outlet fortuneMoving, meanwhile, the condensate water that enters cylinder type cold slag machine 29 water sides is further with following current or reflux typeFully absorb the heat of slag remnants. Because entering the condensate water of cylinder type cold slag machine 29 and entering deslagging heat exchanger tube4 condensate water all, from distributing female pipe 30, so initial temperature is identical, makes pulp water in cylinder type cold slag machine 29Between the temperature difference certainly will be also larger, be conducive to heat exchange, add the rolling of slag in cylinder, discrete and pasteThe motions such as wall, make to be positioned at all the time the middle entrained physics sensible heat of slag of deslagging heat exchanger tube 4, in drum-typeIn cold slag machine 29, also farthest discharge, thereby further cooling reduction slag temperature makes drum-typeCold slag machine 29 exports slag temperature is down to the object of safe temperature scope. From each deslagging heat exchanger tube 4 and drum-typeThe hot water that cold slag machine 29 water side outlets flow out mixes through collecting female pipe 28, according to its temperature and pressure again through electricityThe heater 27 water sides that moving stop valve 10 is got back to coupling continue thermodynamic cycle. Use deslagging heat exchanger tube 4 can be thoroughThe end, solves existing simple scum pipe and is burnt red and problem thermal deformation, flow through deslagging heat exchanger tube 4 and cold slag machine 29Condensing water flow and flow velocity can flexible modulation, coordinated, is down to boiler slag removal temperature optimization minimum,Farthest improve the economy of therrmodynamic system.
What Steam-Water System in Power Plant was used is all demineralized water, and the preparation flow of demineralized water comprises water softening workshop section,Thereby there is ready-made demineralized water preparation system in power station. From soft water system, draw the female pipe 41 of a moisturizing, in moisturizingOn female pipe 41, set gradually 10,1 moisturizing electric control valve 31 of 1 moisturizing electric check valve along water (flow) directionWith 1 moisturizing electric check valve 10, add 32 and 1 side of 1 shunt valve for guaranteeing that safety arrangesElectric check valve 10 common formation moisturizings in road regulate platform, and wherein bypass electric check valve 10 is electronic in moisturizingWhen having an accident, just opens by control valve 31. Before boiler operatiopn, close the electric check valve on the female pipe 44 of backwater10 and accident draining valve 38, open exhaust-valve 40, circulating pump 42 front and back electric check valves 10, deslagging heat exchangeManage the bypass of 4 front and back electric check valves 10, heat pump generator front and back electric check valve 10 and heat pump generatorElectric check valve 10, then reverse water (flow) direction is opened successively moisturizing and is regulated the moisturizing electric check valve on platform10 and moisturizing electric control valve 31, by the female pipe 41 of moisturizing, demineralized water is injected and utilizes deslagging waste heat apparatus to doIn ammonia water absorbing heat pump for thermal source, in the injecting process, the air in system is by exhaust-valve 40Sky is discharged, when exhaust-valve 40 water outlets evenly and close exhaust-valve 40 when full packages, when the each pressure gauge 9 of system showsWhen number reaches water filling design pressure, close successively moisturizing electric check valve 10 and moisturizing electric control valve 31. WholeIndividual the injecting process and CFBB water filling are carried out simultaneously. After finishing, water filling opens on the female pipe 44 of backwaterElectric check valve 10, starts circulating pump 42 and sets up water circulation, and now system pressure also can slightly rise. UpperState in system, circulating pump 42 exports and is also provided with non-return valve 43 to guarantee the security of operation of circulating pump 42, establishesPut some thermometers 8 with monitoring running temperature, provide foundation for operation regulates.
Along with CFBB is from igniting to normal operation, end slag falls into deslagging from boiler slag removal hole 1 and changesThe slag side of heat pipe 4, deslagging heat exchanger tube 4, between boiler slag removal hole 1 and cold slag machine 29, enters deslagging and changesThe demineralized water of heat pipe 4 from bottom to top flows through water conservancy diversion chamber 25, the end slag that enters deslagging heat exchanger tube 4 alongCorrosive-proof plastic material 26 walls from top to bottom flow, and form countercurrent flow, because demineralized water and slag discharge room existHigh temperature difference, adds the head and corrosive-proof plastic material 26 walls that on inner tube 22 inwalls of deslagging heat exchanger tube 4, weldThe enhanced heat exchange effect of some pins that face flushes, the demineralized water of the deslagging heat exchanger tube 4 that makes to flow through has larger temperature rise,Reach the deslagging effect that significantly cools. Deslagging heat exchanger tube 4 exports water temperature and monitors by thermometer 8.Along with the rising gradually of circulating water temperature, recirculated water volume expands, and the on-condensible gas dissolving in recirculated water is overflowed,Cause the rising water pressure of circulation, now according to pressure gauge 9 registrations, by accident draining valve 38 and benefitWater electric control valve 31 is coordinated to control by operation pressure stabilization in design and operation pressure allows the scope of fluctuation,If there is serious superpressure phenomenon, safety valve 34 moves releasing pressure automatically, with protection system device security. From accidentThe demineralized water that draining valve 38 is discharged can be introduced demineralized water preparation system, avoids water waste. When this system overhaul orWhile there is emergency, demineralized water can also in line trench 39. The hot mastication of discharging from deslagging heat exchanger tube 4Water enters in the generator 37 of ammonia water absorbing heat pump ammoniacal liquor concentrated solution is heated, and low boiling solute ammonia is subject toThe rear evaporation of heat becomes ammonia steam to be confessed from air supply pipe 35, and ammonia steam enters ammonia water absorbing heat pump as cold-producing mediumSystem can realize freezing and Winter heat supply the summer in power station, and the ammonia after work and ammoniacal liquor weak solution are mixed intoThe generator 37 of again getting back to ammonia water absorbing heat pump through liquid back pipe 36 after concentrated solution is heated, and follows and so forthRing. Hot mastication water becomes low temperature softening water and discharges in ammonia water absorbing heat pump after heat release, pass throughCirculating pump 42 is again got back to deslagging heat exchanger tube 4 and is absorbed heat, and generator 37 heat releases, so move in circles. Pass throughThis system both can solve deslagging heat exchanger tube 4 and burn the problems such as red, improved cold slag machine 29 and exerted oneself, and also can realize power stationThe refrigeration of Various Seasonal and heat demand, improve the heat-economy of full factory.
Ammonia water absorbing heat pump is taking ammonia as cold-producing medium, and taking water as absorbent, required heating-up temperature is as long as at 80 DEG CMore than, both can produce the cold lower than 0 DEG C, also can supply with 0 DEG C of above cold, have can utilize lowGrade waste heat, economize on electricity, device fabrication easily, operate steadily reliable, simple to operate, be convenient to regulate, noiseLittle, to be easy to safeguard, to use material be the features such as cheap carbon steel. Ammonia water absorbing heat pump is mainComprise the equipment such as generator 37, absorber, solution pump, choke valve, condenser, evaporimeter. Ammoniacal liquor is dense moltenLiquid is heated at generator 37, ammoniacal liquor become ammonia steam flow go out generator 37 enter condenser condenses become slightly excessively coldLiquid state, then become through choke valve reducing pressure by regulating flow the gas-fluid two-phase mixture that temperature is lower, gas-liquid two-phase mixesThe liquid refrigerant endothermic gasification that thing enters after evaporimeter wherein freezes. And in generator 37, stay rare moltenLiquid enters absorber through choke valve puffing, and meeting to mix with the steam coming from evaporimeter becomes ammonia againWater concentrated solution, and the heat in mixed process is passed to extraneous cooling water, ammoniacal liquor concentrated solution increases through solution pumpAfter pressure, become subcooled liquid and be admitted to generator 37 and be again subject to thermal evaporation, so move in circles. Follow based on above-mentionedThe ring course of work, when summer, lowers the temperature by high-speed air flow and the evaporimeter forced heat-exchanging of blower fan, then willAir after refrigeration is sent into central air conditioner system and distributes to each room and reach the object of refrigeration, when winter, willThe air stream heating up with condenser forced heat-exchanging is sent into central air conditioner system and realizes the object of heat supply.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, not all at thisWithin bright spirit and principle, any amendment of doing, be equal to replacement, improvement etc., all should be included in thisWithin bright protection domain.
Claims (5)
1. a CFBB deslagging residual heat using device, is characterized in that comprising that mud hole, deslagging connectMouthful, collect header, deslagging heat exchanger tube, reinforce floor, distribute header, cooling water inlet pipe, cooling water go outMouth pipe, three-dimensional expansion joint, cooling air inlet, scum pipe, manually gate valve, electric brake plate valve, accident rowSlag pipe, Breeches type threeway, outer tube, inner tube, deflector, pin and water conservancy diversion chamber; Deslagging interface is taperShape, upper port diameter is greater than lower port diameter, upper port is connected with boiler slag removal hole, lower port with collectHeader upper end connects; Deslagging heat exchanger tube is fitted together shape by the inner tube concentric locking collar of large diameter outer tube and minor diameterCircularize chamber; Between inside and outside tube wall, weld and severally annular compartment is along the circumferential direction divided into several are mutualThe wide deflector of the water conservancy diversion chamber not communicating, deflector and inner and outer pipes are isometric; In the inner tube of deslagging heat exchanger tubeOn wall, weld several pins, on inner tube wall face, smear corrosive-proof plastic material, corrosive-proof plastic material thickness withThe other end of pin is concordant and expose pin head; On the outer tube outer wall face of deslagging heat exchanger tube, installing several canThe annular that prevents the distortion of deslagging heat exchanger tube expanded by heating is reinforced floor; The upper end of deslagging heat exchanger tube with collect headerLower end is connected, and a side of collecting header is connected with cooling water outlet pipe; The lower end of deslagging heat exchanger tube with pointJoin header upper end and be connected, distribute a side of header to be connected with cooling water inlet pipe; Distribute header lower end withThree-dimensional expansion joint upper end is connected, and three-dimensional expansion joint lower end is connected with Breeches type threeway, Breeches type threewayInside tube is connected with accident scum pipe, on accident scum pipe, is provided with manually gate valve; Outside Breeches type threewaySide pipe is connected with scum pipe, is disposed with manually gate valve and electric brake plate valve on scum pipe.
2. CFBB deslagging residual heat using device as claimed in claim 1, is characterized in that pantsThe interior outside of type threeway is provided with cooling air inlet.
3. CFBB deslagging residual heat using device as claimed in claim 1 or 2, is characterized in thatOn cooling water inlet pipe and outlet, be equipped with electric check valve, pressure gauge, thermometer.
4. CFBB deslagging residual heat using device as claimed in claim 1 or 2, is characterized in thatOn the outer tube outer wall face of deslagging heat exchanger tube, install a hanger, be connected with the steelframe of boiler by high-strength spring.
5. CFBB deslagging residual heat using device as claimed in claim 1 or 2, is characterized in thatThe crotch of Breeches type threeway is welded with gusset plate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050610.1A CN105588107A (en) | 2016-01-26 | 2016-01-26 | Deslagging waste heat utilization device for circulating fluidized bed boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610050610.1A CN105588107A (en) | 2016-01-26 | 2016-01-26 | Deslagging waste heat utilization device for circulating fluidized bed boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105588107A true CN105588107A (en) | 2016-05-18 |
Family
ID=55927886
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610050610.1A Pending CN105588107A (en) | 2016-01-26 | 2016-01-26 | Deslagging waste heat utilization device for circulating fluidized bed boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105588107A (en) |
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062209A (en) * | 2017-05-22 | 2017-08-18 | 清华大学 | A kind of air-cooled deslagging device of circulating fluidized bed boiler |
| CN108613203A (en) * | 2017-07-19 | 2018-10-02 | 夏华萍 | Biomass boiler |
| CN108709441A (en) * | 2018-08-14 | 2018-10-26 | 宁波市哈雷换热设备有限公司 | A kind of heat-exchangers of the plate type with bracing means |
| CN109737374A (en) * | 2019-03-13 | 2019-05-10 | 常州市长江热能有限公司 | A kind of circulating fluidized bed boiler |
| CN110044129A (en) * | 2019-05-08 | 2019-07-23 | 浙江湾区机器人技术有限公司 | A kind of efficient cooling system for powder particle |
| CN112710001A (en) * | 2020-12-30 | 2021-04-27 | 灌南宏耀环保能源有限公司 | Thermal power generation boiler capable of recovering heat energy |
| CN116499016A (en) * | 2023-05-05 | 2023-07-28 | 兰州华能生态能源科技股份有限公司 | Multi-energy complementary heating device |
Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350326A (en) * | 1981-02-02 | 1982-09-21 | Kawasaki Jukogyo Kabushiki Kaisha | Apparatus for heat recovery from molten slag |
| US5954000A (en) * | 1997-09-22 | 1999-09-21 | Combustion Engineering, Inc. | Fluid bed ash cooler |
| CN101660759A (en) * | 2009-09-14 | 2010-03-03 | 四川龙麟锅炉设备有限责任公司 | Film-type water-cooling lining wear-resistant plastic slag-roughing device |
| CN201521975U (en) * | 2009-09-14 | 2010-07-07 | 四川龙麟锅炉设备有限责任公司 | Membrane water-cooled slag removing device with abrasion-resistant plastic material lining |
| CN202709095U (en) * | 2012-07-25 | 2013-01-30 | 四川川锅锅炉有限责任公司 | Water-cooling spiral flow-around type slagging device |
| CN203605217U (en) * | 2013-11-22 | 2014-05-21 | 山西平朔煤矸石发电有限责任公司 | CFB (circulating fluidized bed) boiler slag discharging device for burning coal gangue |
| CN203744243U (en) * | 2014-03-04 | 2014-07-30 | 刘红霞 | Slag discharge device for wear-resistant water-cooled circulating fluidized bed boiler |
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN205351289U (en) * | 2016-01-26 | 2016-06-29 | 山西国峰煤电有限责任公司 | Circulating fluidized bed boilerslagremoval waste heat utilization equipment |
-
2016
- 2016-01-26 CN CN201610050610.1A patent/CN105588107A/en active Pending
Patent Citations (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4350326A (en) * | 1981-02-02 | 1982-09-21 | Kawasaki Jukogyo Kabushiki Kaisha | Apparatus for heat recovery from molten slag |
| US5954000A (en) * | 1997-09-22 | 1999-09-21 | Combustion Engineering, Inc. | Fluid bed ash cooler |
| CN101660759A (en) * | 2009-09-14 | 2010-03-03 | 四川龙麟锅炉设备有限责任公司 | Film-type water-cooling lining wear-resistant plastic slag-roughing device |
| CN201521975U (en) * | 2009-09-14 | 2010-07-07 | 四川龙麟锅炉设备有限责任公司 | Membrane water-cooled slag removing device with abrasion-resistant plastic material lining |
| CN202709095U (en) * | 2012-07-25 | 2013-01-30 | 四川川锅锅炉有限责任公司 | Water-cooling spiral flow-around type slagging device |
| CN203605217U (en) * | 2013-11-22 | 2014-05-21 | 山西平朔煤矸石发电有限责任公司 | CFB (circulating fluidized bed) boiler slag discharging device for burning coal gangue |
| CN203744243U (en) * | 2014-03-04 | 2014-07-30 | 刘红霞 | Slag discharge device for wear-resistant water-cooled circulating fluidized bed boiler |
| CN104180367A (en) * | 2014-08-26 | 2014-12-03 | 西安热工研究院有限公司 | Slagging tube of fluidized-bed boiler |
| CN205351289U (en) * | 2016-01-26 | 2016-06-29 | 山西国峰煤电有限责任公司 | Circulating fluidized bed boilerslagremoval waste heat utilization equipment |
Non-Patent Citations (1)
| Title |
|---|
| 周强泰、黄素逸合编: "《锅炉与热交换器传热强化》", 水利电力出版社, pages: 54 - 55 * |
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107062209A (en) * | 2017-05-22 | 2017-08-18 | 清华大学 | A kind of air-cooled deslagging device of circulating fluidized bed boiler |
| CN108613203A (en) * | 2017-07-19 | 2018-10-02 | 夏华萍 | Biomass boiler |
| CN108800110A (en) * | 2017-07-19 | 2018-11-13 | 夏华萍 | boiler |
| CN108709441A (en) * | 2018-08-14 | 2018-10-26 | 宁波市哈雷换热设备有限公司 | A kind of heat-exchangers of the plate type with bracing means |
| CN108709441B (en) * | 2018-08-14 | 2023-08-25 | 宁波市哈雷换热设备有限公司 | Plate heat exchanger with reinforcing device |
| CN109737374A (en) * | 2019-03-13 | 2019-05-10 | 常州市长江热能有限公司 | A kind of circulating fluidized bed boiler |
| CN110044129A (en) * | 2019-05-08 | 2019-07-23 | 浙江湾区机器人技术有限公司 | A kind of efficient cooling system for powder particle |
| CN112710001A (en) * | 2020-12-30 | 2021-04-27 | 灌南宏耀环保能源有限公司 | Thermal power generation boiler capable of recovering heat energy |
| CN116499016A (en) * | 2023-05-05 | 2023-07-28 | 兰州华能生态能源科技股份有限公司 | Multi-energy complementary heating device |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105588107A (en) | Deslagging waste heat utilization device for circulating fluidized bed boiler | |
| CN107905897A (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system and method | |
| CN100504275C (en) | Dyeing waste water heat energy recovery method and recovery system | |
| CN205065770U (en) | Flue gas waste heat recovery device | |
| CN102221201A (en) | Equal-bed pressure cold slag fluidized bed of circulating fluidized bed boiler and operation method thereof | |
| CN202614007U (en) | Horizontal condensing apparatus | |
| CN208040541U (en) | Gas turbine cycle flue gas waste heat recovery and inlet gas cooling association system | |
| CN203559031U (en) | Waste pot device of entrained-flow bed gasification furnace | |
| CN205351289U (en) | Circulating fluidized bed boilerslagremoval waste heat utilization equipment | |
| CN109945174B (en) | Slag flushing water closed circulation utilization system of liquid slag discharging boiler | |
| CN206832073U (en) | A kind of steam cooling recovery system | |
| CN106834571A (en) | A kind of blast-furnace cement sensible heat reclaims slag cooler | |
| CN206207789U (en) | Blast furnace slag quenching water heat refrigeration apparatus | |
| CN113218193A (en) | Industrial kiln waste heat recovery device and waste heat recovery method | |
| CN108060280A (en) | Jet stream steaming process slag particle and heat utilization method | |
| CN112577347A (en) | Horizontal parallel heat storage device based on heat pipes and working method thereof | |
| CN206709053U (en) | A kind of power station recirculated water smoke waste heat comprehensive utilization system | |
| CN100397023C (en) | Method forrecovering heat quantity carried by yellow phosphorus waste slag and heat quantity produced by reaction tail gas and their comprehensive utilization | |
| CN201973735U (en) | Single-cycle dredging type air leakage control system for Ljungstrom air preheaters | |
| CN207815303U (en) | CFB Slag cooling structure | |
| CN201228964Y (en) | Sorting machine for removing cool slag | |
| CN110938475A (en) | Waste heat boiler with synthesis gas recirculation chilling device in coal gasification system | |
| CN204987443U (en) | Vertical energy -saving environmental -protection boiler | |
| CN100374637C (en) | oil heating and heat recovery type dyeing machine | |
| CN216523378U (en) | High-temperature-resistant electromagnetic pulse cleaning device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160518 |
|
| RJ01 | Rejection of invention patent application after publication |