CN105841137A - Wall temperature controllable coal economizer - Google Patents
Wall temperature controllable coal economizer Download PDFInfo
- Publication number
- CN105841137A CN105841137A CN201610338935.XA CN201610338935A CN105841137A CN 105841137 A CN105841137 A CN 105841137A CN 201610338935 A CN201610338935 A CN 201610338935A CN 105841137 A CN105841137 A CN 105841137A
- Authority
- CN
- China
- Prior art keywords
- water
- heat exchanger
- flue
- boiler
- lower header
- 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
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
- F22D1/02—Feed-water heaters, i.e. economisers or like preheaters with water tubes arranged in the boiler furnace, fire tubes, or flue ways
- F22D1/12—Control devices, e.g. for regulating steam temperature
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F28—HEAT EXCHANGE IN GENERAL
- F28D—HEAT-EXCHANGE APPARATUS, NOT PROVIDED FOR IN ANOTHER SUBCLASS, IN WHICH THE HEAT-EXCHANGE MEDIA DO NOT COME INTO DIRECT CONTACT
- F28D1/00—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators
- F28D1/02—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid
- F28D1/04—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits
- F28D1/053—Heat-exchange apparatus having stationary conduit assemblies for one heat-exchange medium only, the media being in contact with different sides of the conduit wall, in which the other heat-exchange medium is a large body of fluid, e.g. domestic or motor car radiators with heat-exchange conduits immersed in the body of fluid with tubular conduits the conduits being straight
Landscapes
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Control Of Steam Boilers And Waste-Gas Boilers (AREA)
Abstract
The invention discloses a wall temperature controllable coal economizer. The wall temperature controllable coal economizer comprises a finned tube, an upper collection box, a lower collection box and a heat exchanger. Through arranging the heat exchanger between a flue and boiler water, the boiler water does not pass through the flue and directly enters a boiler barrel after absorbing heat from the heat exchanger, so that the wall of a pipe of the boiler water is prevented from generating low-temperature corrosion; the circulating water enters the heat exchanger after absorbing smoke heat through the finned tube, and carries out heat exchange with the boiler water in the heat exchanger, so that the temperature of the boiler water is improved, the smoke temperature is reduced and the boiler efficiency is improved.
Description
Technical field
The present invention relates to boiler matching equipment technical field, particularly to a kind of wall temperature controllable type economizer.
Background technology
Hereinafter the background of related of the present invention is illustrated, but these explanations might not constitute this
Bright prior art.
Owing to the sulfur content of coal is higher, oxysulfide would generally be produced during burning, after being combined with steam
I.e. form sulfuric acid vapor.When the metal pipe-wall temperature of economizer is (referred to as sour less than the set point of sulfuric acid vapor
Dew point) time, liquid sulfuric acid (referred to as condensation) will be formed on its surface.For a long time, tradition economizer
The corrosion caused due to condensation even perforated phenomenon occurs often, has a strong impact on the operation safety of boiler,
So current boiler is all the generation alleviating condensation and corrosion phenomenon by improving exhaust gas temperature, flue gas
Temperature remains high.
Boiler smoke temperature often declines 15～18 DEG C can improve boiler efficiency 1%, therefore reduces boiler smoke
Temperature has become an important channel of boiler energy-saving, must solve again economizer cold end corrosion simultaneously
A difficult problem, then a kind of wall temperature controllable type economizer just arises at the historic moment..
Summary of the invention
It is an object of the invention to propose a kind of wall temperature controllable type economizer, it is possible to solve existing economizer low
Warm area smoke condensation etching problem.Additionally, due to boiler water not with smoke contacts, it is not necessary to reach flue gas
More than dew-point temperature, therefore, it is possible to save a large amount of steam and the energy, it is achieved boiler water temperature is controlled.
Wall temperature controllable type economizer according to the present invention, including: finned tube, upper collecting chamber, lower header and
Heat exchanger；Wherein,
Finned tube is arranged in flue, and the water intake end of finned tube is gone out by the first distributive pipe and lower header
Water end (W.E.) connects, and the water side of finned tube is connected with the water intake end of upper collecting chamber by the second distributive pipe；
Upper collecting chamber and lower header are arranged on outside flue；The water side of upper collecting chamber is passed through the first connecting tube and is changed
The recirculated water entrance of hot device connects, and the water intake end of lower header is by the circulation of the second connecting tube with heat exchanger
Water out connects；
Heat exchanger is arranged on outside flue, is provided with recirculated water entrance, circulating water outlet, boiler water
Entrance and boiler water outlet；Boiler water outlet is connected with the drum of boiler；
Carry out heat exchange with the high-temperature flue gas in flue when recirculated water in lower header enters finned tube, inhale
Heat exchanger is entered through upper collecting chamber after receiving heat；Absorb the recirculated water after heat in heat exchanger and boiler
Water carries out heat exchange, is back to lower header after release heat；Boiler water enters heat exchange from boiler water entrance
Device, carries out heat exchange with recirculated water, exports outflow heat exchanger from boiler water after absorbing heat.
Preferably, the upside of described heat exchanger is provided with the recirculated water inlet being connected with water supply line,
For injecting recirculated water.
Preferably, described recirculated water inlet is provided with and manually regulates unit, for manually regulating institute
State the aperture of recirculated water inlet；Or, described wall temperature controllable type economizer farther includes: first
Sensor and controller；
First sensor is arranged on the smoke inlet in flue, enters the flue gas stream in flue for detection
Amount and flue-gas temperature, and it is sent to controller；
Controller receives the data that first sensor sends, and looks into according to described flue gas flow and flue-gas temperature
Ask the mapping relations preset, determine circulating water flow；According to described circulating water flow, regulate described confession
The valve opening of waterpipe.
Preferably, farther include according to the wall temperature controllable type economizer of the present invention: be arranged on lower header
In the second sensor and be arranged on the sewage draining exit on the downside of lower header；
Circulating water temperature in second sensor detection lower header, and it is sent to controller；
Controller receives described circulating water temperature degrees of data, when described circulating water temperature is more than the temperature preset
During threshold value, open described sewage draining exit and the recirculated water in described lower header is discharged, then follow described in basis
The valve opening of ring discharge regulation water supply line, injects recirculated water for wall temperature controllable type economizer.
Preferably, described recirculated water is released with described recirculated water at the systemic heat of flue in heat exchanger
The heat put is equal.
Preferably, described heat exchanger is shell-and-tube heat exchanger, is boiler water in tube side, for following in shell side
Ring water.
Preferably, in described heat exchanger, it is provided with gripper shoe, for fixing described shell-and-tube heat exchanger
Tube side.
Preferably, the water side of upper collecting chamber arranges at least one upper collecting chamber delivery port, upper collecting chamber delivery port,
First connecting tube, recirculated water entrance quantity equal, every first connecting tube only connects a upper collecting chamber
Delivery port and a recirculated water entrance.
Preferably, the water intake end of lower header arranges at least one lower header water inlet, lower header water inlet,
Second connecting tube, circulating water outlet quantity equal, every second connecting tube only connects a lower header
Water inlet and a circulating water outlet.
Preferably, Pressure gauge, thermometer, safety valve and vent valve are set in heat exchanger.
Wall temperature controllable type economizer according to the present invention includes: finned tube, upper collecting chamber, lower header and change
Hot device.By arranging heat exchanger between flue and boiler water, boiler water does not walk flue directly from heat exchanger
Enter drum after heat absorption, prevent from producing on the tube wall of boiler water cold end corrosion；Recirculated water is inhaled by finned tube
Enter in heat exchanger after receiving flue gas heat, in heat exchanger, carry out heat exchange with boiler water, improve boiler water
Temperature, it is possible to reduce flue-gas temperature, improve boiler efficiency.
Accompanying drawing explanation
By the detailed description of the invention part provided referring to the drawings, the features and advantages of the present invention will
Become better understood by, in the accompanying drawings:
Fig. 1 is the front view of the wall temperature controllable type economizer according to the present invention；
Fig. 2 is the left view of the wall temperature controllable type economizer according to the present invention；
Fig. 3 is the Fig. 2 schematic diagram along B-B direction；
Fig. 4 is according to the heat exchanger tube schematic diagram within heat exchanger in the preferred embodiment of the present invention；
Fig. 5 is the Fig. 4 schematic diagram along C direction；
Fig. 6 is the Fig. 4 schematic diagram along D-D direction；
Fig. 7 is the Fig. 6 schematic diagram along F-F direction.
Wherein: 1, the tube side of heat exchanger；2, the shell side of heat exchanger；3, the heat exchanger tube of heat exchanger；41、
First connecting tube；42, the second connecting tube；5, upper collecting chamber；6, lower header；71, the first distributive pipe；
72, the second distributive pipe；8, finned tube；9, flue；10, liquid level gauge；11, boiler water entrance；12、
Boiler water exports；13, heat exchanger sewage draining exit；14, lower header sewage draining exit；15, vent valve；16, pressure
Power table；17, safety valve；18, thermometer；19, gripper shoe；20, support bar；21, recirculated water note
Entrance.
Detailed description of the invention
With reference to the accompanying drawings the illustrative embodiments of the present invention is described in detail.To exemplary enforcement
The description of mode is merely for the sake of demonstration purpose, and is definitely not the present invention and application thereof or the restriction of usage.
The present invention is by arranging heat exchanger between flue and boiler water, and boiler water does not walk flue directly from changing
Drum is entered, it is possible to prevent from producing on the tube wall of boiler water cold end corrosion after the heat absorption of hot device.Below in conjunction with attached
Wall temperature controllable type economizer according to the present invention is described in detail by figure.
As shown in Figure 1-2, include according to the wall temperature controllable type economizer of the present invention: finned tube 8, on
Header 5, lower header 6 and heat exchanger；Wherein,
Finned tube 8 is arranged in flue, the water intake end of finned tube 8 by the first distributive pipe 71 with under
The water side of header 6 connects, and the water side of finned tube 8 is by the second distributive pipe 72 and upper collecting chamber 5
Water intake end connect；
Upper collecting chamber 5 and lower header 6 are arranged on outside flue 9；The water side of upper collecting chamber 5 is by first even
Adapter 41 is connected with the recirculated water entrance of heat exchanger, and the water intake end of lower header 6 passes through the second connecting tube
42 are connected with the circulating water outlet of heat exchanger；
Heat exchanger is arranged on outside flue 9, is provided with recirculated water entrance (not shown), follows
Ring water out (not shown), boiler water entrance 11 and boiler water outlet 12；Boiler water exports
12 are connected with the drum (not shown) of boiler.
Carry out heat friendship with the high-temperature flue gas in flue when recirculated water in lower header 6 enters finned tube 8
Change, after absorbing heat, enter heat exchanger through upper collecting chamber 5；Absorb the recirculated water after heat at heat exchanger
Interior and boiler water carries out heat exchange, is back to lower header 6 after release heat；Boiler water enters from boiler water
Mouth 11 enters heat exchangers, carries out heat exchange with recirculated water, flows from boiler water outlet 12 after absorbing heat
Go out heat exchanger.Owing to boiler water pipeline is without flue 9, therefore the temperature of boiler water need not reach
More than dew-point temperature, save substantial amounts of steam and the energy.The temperature of boiler water need not reach dew point
More than temperature, therefore can be according to the temperature of actual conditions regulation boiler water, it is achieved the temperature of boiler water
Controlled.Additionally, due to boiler water does not walk flue 9 directly enters drum after heat exchanger absorbs heat, it is to avoid
In prior art due in flue the temperature of boiler water pipeline relatively low and cause on boiler water tube wall produce
Cold end corrosion phenomenon.Heat exchange is carried out so that flue-gas temperature reduces, and passes through by recirculated water and flue gas
Carrying out heat exchange with recirculated water, recirculated water will pass to boiler water from the heat of smoke absorption so that pot
The temperature of stove water raises, and improves the efficiency of boiler.In order to improve the efficiency of boiler as far as possible, reduce heat
Amount loss, can make the heat that recirculated water discharges in heat exchanger at the systemic heat of flue and recirculated water
Measure equal.
Those skilled in the art can select the kind of heat exchanger according to actual needs, according to the present invention's
Preferred embodiment, heat exchanger is shell-and-tube heat exchanger, as shown in Figure 2.It is recirculated water in shell side 2,
It is boiler water in tube side 1.Fig. 3-7 shows according in the preferred embodiment of the present invention, pipe shell type heat exchange
The schematic diagram of the heat exchanger tube 3 within device.As shown in Figure 4, gripper shoe 19 can be set in heat exchanger,
For fixing the tube side 1 of shell-and-tube heat exchanger.Gripper shoe 19 can be fixed on the sidewall of heat exchanger,
Can also be fixed on inside heat exchanger, as shown in Figure 4 by support bar 20.Change to detect in real time
Liquid level in hot device, can arrange liquid level gauge 10 in heat exchanger.
After the heat of recirculated water absorption flue gas, temperature constantly raises, and even vaporizes.Recirculated water after vaporization
After entering heat exchanger, the temperature and pressure in heat exchanger increases.If the temperature and pressure mistake in heat exchanger
Greatly, potential safety hazard can be produced.Therefore, it can in heat exchanger, arrange Pressure gauge 16 and thermometer 18,
So that detecting the pressure and temperature in heat exchanger in real time.Safety valve 17 can also be set in heat exchanger
With vent valve 15 so that in the range of heat exchanger is maintained at suitable pressure and temperature.
The water side of upper collecting chamber 5 can be by one, two or many first connecting tubes and heat exchanger
Recirculated water entrance connects.According to a preferred embodiment of the invention, the water side of upper collecting chamber 5 is arranged at least
One upper collecting chamber delivery port (not shown), upper collecting chamber delivery port, the first connecting tube 41, circulation
The quantity of water inlet is equal, and every first connecting tube 41 only connects a upper collecting chamber delivery port and one
Recirculated water entrance, sees Fig. 2.The water intake end of lower header 6 can be by one, two or many
Two connecting tubes are connected with the circulating water outlet of heat exchanger.According to a preferred embodiment of the invention, lower header
The water intake end of 6 arranges at least one lower header water inlet (not shown), lower header water inlet,
Two connecting tubes 42, circulating water outlet quantity equal, every second connecting tube only connects a lower header
Water inlet and a circulating water outlet.
According to a preferred embodiment of the invention, the upside of heat exchanger is provided with water supply line (in figure not
Illustrate) the recirculated water inlet 21 that connects, it is used for injecting recirculated water.Such as, recirculated water inlet
Manually regulation unit (not shown), manually regulation unit regulation recirculated water it is provided with on 21
The aperture of inlet 21, can adjust the flow of the recirculated water injecting heat exchanger.It is of course also possible to
Automatically controlled injection and the flow of recirculated water by controller, specifically, wall temperature controllable type economizer enters
One step includes: first sensor (not shown) and controller (not shown)；
First sensor is arranged on the smoke inlet in flue, enters the flue gas stream in flue for detection
Amount and flue-gas temperature, and it is sent to controller；Controller receives the data that first sensor sends, root
Inquire about, according to flue gas flow and flue-gas temperature, the mapping relations preset, determine circulating water flow；According to circulation
Discharge, the valve opening of regulation water supply line.
After recirculated water absorbs the heat of flue gas, temperature rises, and rejects heat to after boiler water at temperature
Fall.If the heat of recirculated water release is less than the heat absorbed, then use the increase of time along with economizer,
The temperature of recirculated water constantly raises.The temperature of recirculated water is the highest, the poorest with the effect of flue gas heat exchange,
The poorest to the cooling-down effect of flue gas, even cannot play when the temperature of recirculated water is too high and flue gas is dropped
The effect of temperature, is unfavorable for the heat of abundant recovered flue gas so that boiler efficiency reduces.In order to avoid this
The generation of the situation of kind, according to a preferred embodiment of the invention, is provided with sewage draining exit 14 on the downside of lower header；
The second sensor (not shown) it is provided with, for detecting in lower header in lower header 6
Circulating water temperature, and it is sent to controller；
Controller receives circulating water temperature degrees of data, when circulating water temperature is more than the temperature threshold preset,
Open sewage draining exit 14 to be discharged by the recirculated water in lower header 6, then supply according to circulating water flow regulation
The valve opening of waterpipe, injects recirculated water for wall temperature controllable type economizer.The circulating water temperature discharged
Higher, recyclable supply drum, or for other thermals source.
When lower header needs to clean or need to clean according to the economizer of the present invention, it is also possible to logical
Cross the sewage draining exit 14 on the downside of lower header and discharge rinse water.
Compared with prior art, the wall temperature controllable type economizer of the present invention is prevented from the tube wall of boiler water
Produce cold end corrosion, it is possible to reduce flue-gas temperature, improve boiler efficiency.
Although with reference to illustrative embodiments, invention has been described, but it is to be understood that the present invention
It is not limited in literary composition the detailed description of the invention describing in detail and illustrating, is being limited without departing from claims
In the case of fixed scope, described illustrative embodiments can be made various changing by those skilled in the art
Become.
Claims (10)
1. a wall temperature controllable type economizer, it is characterised in that including: finned tube, upper collecting chamber, under
Header and heat exchanger；Wherein,
Finned tube is arranged in flue, and the water intake end of finned tube is gone out by the first distributive pipe and lower header
Water end (W.E.) connects, and the water side of finned tube is connected with the water intake end of upper collecting chamber by the second distributive pipe；
Upper collecting chamber and lower header are arranged on outside flue；The water side of upper collecting chamber is passed through the first connecting tube and is changed
The recirculated water entrance of hot device connects, and the water intake end of lower header is by the circulation of the second connecting tube with heat exchanger
Water out connects；
Heat exchanger is arranged on outside flue, is provided with recirculated water entrance, circulating water outlet, boiler water
Entrance and boiler water outlet；Boiler water outlet is connected with the drum of boiler；
Carry out heat exchange with the high-temperature flue gas in flue when recirculated water in lower header enters finned tube, inhale
Heat exchanger is entered through upper collecting chamber after receiving heat；Absorb the recirculated water after heat in heat exchanger and boiler
Water carries out heat exchange, is back to lower header after release heat；Boiler water enters heat exchange from boiler water entrance
Device, carries out heat exchange with recirculated water, exports outflow heat exchanger from boiler water after absorbing heat.
2. wall temperature controllable type economizer as claimed in claim 1, wherein, described heat exchanger upper
Side is provided with the recirculated water inlet being connected with water supply line, is used for injecting recirculated water.
3. wall temperature controllable type economizer as claimed in claim 2, wherein, described recirculated water injects
It is provided with on Kou and manually regulates unit, for manually regulating the aperture of described recirculated water inlet；Or,
Described wall temperature controllable type economizer farther includes: first sensor and controller；
First sensor is arranged on the smoke inlet in flue, enters the flue gas stream in flue for detection
Amount and flue-gas temperature, and it is sent to controller；
Controller receives the data that first sensor sends, and looks into according to described flue gas flow and flue-gas temperature
Ask the mapping relations preset, determine circulating water flow；According to described circulating water flow, regulate described confession
The valve opening of waterpipe.
4. wall temperature controllable type economizer as claimed in claim 3, farther includes: be arranged on down
The second sensor in water tank and be arranged on the sewage draining exit on the downside of lower header；
Circulating water temperature in second sensor detection lower header, and it is sent to controller；
Controller receives described circulating water temperature degrees of data, when described circulating water temperature is more than the temperature preset
During threshold value, open described sewage draining exit and the recirculated water in described lower header is discharged, then follow described in basis
Ring discharge regulates the valve opening of described water supply line, injects circulation for wall temperature controllable type economizer
Water.
5. wall temperature controllable type economizer as claimed in claim 4, wherein, described recirculated water is at cigarette
The systemic heat in road is equal with the heat that described recirculated water discharges in heat exchanger.
6. the wall temperature controllable type economizer as described in claim 1-5 is arbitrary, wherein, described heat exchanger
For being boiler water in shell-and-tube heat exchanger, tube side, it is recirculated water in shell side.
7. wall temperature controllable type economizer as claimed in claim 6, wherein, sets in described heat exchanger
It is equipped with gripper shoe, for fixing the tube side of described shell-and-tube heat exchanger.
8. the wall temperature controllable type economizer as described in claim 1-5 is arbitrary, wherein, going out of upper collecting chamber
Water end (W.E.) arranges at least one upper collecting chamber delivery port, and upper collecting chamber delivery port, the first connecting tube, recirculated water enter
Mouthful quantity equal, every first connecting tube only connects a upper collecting chamber delivery port and a recirculated water enters
Mouthful.
9. the wall temperature controllable type economizer as described in claim 1-5 is arbitrary, wherein, entering of lower header
Water end (W.E.) arranges at least one lower header water inlet, and lower header water inlet, the second connecting tube, recirculated water go out
Mouthful quantity equal, every second connecting tube only connects a lower header water inlet and a recirculated water goes out
Mouthful.
10. the wall temperature controllable type economizer as described in claim 1-5 is arbitrary, wherein, in heat exchanger
Pressure gauge, thermometer, safety valve and vent valve are set.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338935.XA CN105841137A (en) | 2016-05-19 | 2016-05-19 | Wall temperature controllable coal economizer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610338935.XA CN105841137A (en) | 2016-05-19 | 2016-05-19 | Wall temperature controllable coal economizer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105841137A true CN105841137A (en) | 2016-08-10 |
Family
ID=56593012
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610338935.XA Pending CN105841137A (en) | 2016-05-19 | 2016-05-19 | Wall temperature controllable coal economizer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105841137A (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09292143A (en) * | 1996-04-25 | 1997-11-11 | Daikin Ind Ltd | Heat transfer tube structure of supercooling heat exchanger in ice heat storage device |
| CN201680401U (en) * | 2010-04-23 | 2010-12-22 | 深圳中节能环保有限公司 | Forced circulation heat exchanging system |
| CN202303309U (en) * | 2011-11-02 | 2012-07-04 | 万平 | Flue gas waste heat recovery device |
| CN203336570U (en) * | 2013-07-09 | 2013-12-11 | 南京轩能电力科技有限公司 | Reflux preheating condensate water flue gas waste heat recovery heat exchanger |
| CN103727519A (en) * | 2013-10-25 | 2014-04-16 | 华西能源工业股份有限公司 | Device for preventing low-temperature corrosion of economizer heating surface |
| CN205782833U (en) * | 2016-05-19 | 2016-12-07 | 哈尔滨华氏海德科技发展有限公司 | A kind of wall temperature controllable type economizer |
-
2016
- 2016-05-19 CN CN201610338935.XA patent/CN105841137A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH09292143A (en) * | 1996-04-25 | 1997-11-11 | Daikin Ind Ltd | Heat transfer tube structure of supercooling heat exchanger in ice heat storage device |
| CN201680401U (en) * | 2010-04-23 | 2010-12-22 | 深圳中节能环保有限公司 | Forced circulation heat exchanging system |
| CN202303309U (en) * | 2011-11-02 | 2012-07-04 | 万平 | Flue gas waste heat recovery device |
| CN203336570U (en) * | 2013-07-09 | 2013-12-11 | 南京轩能电力科技有限公司 | Reflux preheating condensate water flue gas waste heat recovery heat exchanger |
| CN103727519A (en) * | 2013-10-25 | 2014-04-16 | 华西能源工业股份有限公司 | Device for preventing low-temperature corrosion of economizer heating surface |
| CN205782833U (en) * | 2016-05-19 | 2016-12-07 | 哈尔滨华氏海德科技发展有限公司 | A kind of wall temperature controllable type economizer |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN104964265B (en) | Horizontal type phase-change heat exchanger and the united energy-saving and emission-reduction system of prefix type hydrophily formula GGH and energy-saving and emission-reduction method | |
| US20100126432A1 (en) | Heat recovery device | |
| CN110425601A (en) | A kind of cooking stove fume afterheat reuse means | |
| CN103185396B (en) | Condensing hot water boiler | |
| CN205245139U (en) | Highly -effective steam generator | |
| CN103727519B (en) | Device for preventing low-temperature corrosion of economizer heating surface | |
| CN205782833U (en) | A kind of wall temperature controllable type economizer | |
| CN207648804U (en) | A kind of vapor removal device in burner backflow flue gas | |
| CN208493792U (en) | A kind of wet desulphurization absorption tower flue gas takes off white system | |
| CN207865428U (en) | A kind of biomass boiler fume afterheat utilizes energy saver | |
| CN105841137A (en) | Wall temperature controllable coal economizer | |
| CN202928094U (en) | Condensing water boiler | |
| CN210532333U (en) | Steam boiler | |
| CN104315872B (en) | Boiler flue gas waste heat recycling and energy-saving device with boiler flue gas dust removing effect | |
| CN208504752U (en) | More backhaul condensing boilers | |
| CN209672288U (en) | A kind of three backhaul fire tube pan shell type steam boilers | |
| CN209706015U (en) | A kind of energy-saving steam generating system | |
| CN209726242U (en) | A kind of boiler of power plant flue gas waste heat recovery apparatus using heat pipe energy-saving technology | |
| CN105020695A (en) | Boiler flue gas waste heat water tank | |
| CN207279678U (en) | A kind of flue gas processing equipment of boiler | |
| CN207540159U (en) | Condensed heat exchanger | |
| CN203501139U (en) | Double-pipe phase change heat exchanger | |
| CN208869328U (en) | A kind of energy-saving ammonium hydroxide vapo(u)rization system | |
| CN104034026B (en) | The vertical heating conversion boiler that supplies water | |
| CN205481099U (en) | Divide accuse preheating of air system that waste heat utilization is synthesized in phase transition |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160810 |
|
| RJ01 | Rejection of invention patent application after publication |