CN203980639U - Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step - Google Patents
Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step Download PDFInfo
- Publication number
- CN203980639U CN203980639U CN201420339183.5U CN201420339183U CN203980639U CN 203980639 U CN203980639 U CN 203980639U CN 201420339183 U CN201420339183 U CN 201420339183U CN 203980639 U CN203980639 U CN 203980639U
- Authority
- CN
- China
- Prior art keywords
- boiler
- water tank
- softened water
- flue gas
- order
- 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.)
- Expired - Fee Related
Links
Classifications
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B30/00—Energy efficient heating, ventilation or air conditioning [HVAC]
Abstract
The utility model discloses one segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step.Comprise Multi-section condenser and boiler continuous water feeding control system step by step, described boiler continuous water feeding control system one end connects Multi-section condenser step by step, the other end connects boiler, described boiler continuous water feeding control system comprises softened water tank, high-order softened water tank, small pump and variable frequency pump, described softened water tank one end is connected with high-order softened water tank by small pump, high-order softened water tank connects Multi-section condenser step by step, the softened water tank other end connects boiler by variable frequency pump, is also connected overflow pipe between high-order softened water tank and softened water tank.Multi-section condenser step by step of the present utility model can make the cooling until normal temperature of boiler smoke segmentation, and waste heat energy is heated to nearly boiling by water by normal temperature simultaneously, for boiler directly supplies water, has realized boiler continuous water feeding and dynamic condensation flue gas simultaneously; Meanwhile, the utility model is simple in structure, and thermal losses is few, and boiler thermal output improves obviously, approaches 100%.
Description
Technical field
The utility model relates to a kind of boiler smoke-gas residual-heat recovering device, the condensation gas boiler of the segmentation step by step flue gas waste heat recovery apparatus that particularly energy-conservation, the thermal efficiency is high.
Background technology
According to the requirement of standard GB/T/T17954-2007 " Industrial Boiler economical operation " and GB/245000-2009 " Industrial Boiler efficiency limit value and efficiency grade ", gas fired-boiler flue-gas temperature should be lower than 160 DEG C, and gas fired-boiler thermal efficiency primary standard should be greater than 94%.If flue-gas temperature can be down to 75 DEG C or lower, so both recyclable because flue-gas temperature reduces the sensible heat discharging, the recyclable water vapor condensation that accounts for flue gas volume 19% becomes aqueous water and the potential that discharges again, and the steam energy that the heat of this part recovery is changed into boiler as much as possible and produced with method cheaply, make the thermal efficiency of boiler reach 100%, and making boiler operatiopn more steady, air supply pressure fluctuation is very little, on gas fired-boiler, promotes and has great society and economic implications.
The mode that gas fuel residual heat from boiler fume reclaims at present has multiple, many is shell and tube or finned retracting device, these technology all can not drop to the steam temperature in flue gas below dew point, can not be recovered to the heat that in flue gas, a large amount of water vapor condensations become aqueous water to discharge.Also have and adopt atomizing device to carry out Mist heat recovering, but this technique device more complicated, expense is high, and user is difficult to accept, and the thermal efficiency does not reach the highest.Although traditional shell and tube flue gas waste heat recovery heat exchanger people design a lot of ways in material and structure, are all single heat accumulating type structures, otherwise be exactly to require water temperature between 50-60 DEG C; If water temperature is higher, cigarette temperature can not be lower than water temperature, reach below steam dew point, thus can not recycle-water steam latent heat of phase change.
Summary of the invention
In order to solve the problems of the technologies described above, the utility model provides a kind of can be down to boiler smoke normal temperature, the high condensation gas boiler of the segmentation step by step flue gas waste heat recovery apparatus of the thermal efficiency.
The technical scheme that the utility model solves the problems of the technologies described above is:
One is segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step, comprise Multi-section condenser and boiler continuous water feeding control system step by step, described boiler continuous water feeding control system one end connects Multi-section condenser step by step, the other end connects boiler, described boiler continuous water feeding control system comprises softened water tank, high-order softened water tank, small pump and variable frequency pump, described softened water tank one end is connected with high-order softened water tank by small pump, high-order softened water tank connects Multi-section condenser step by step, the softened water tank other end connects boiler by variable frequency pump, between high-order softened water tank and softened water tank, be also connected overflow pipe.
Further, the above-mentioned condensation gas boiler of segmentation step by step flue gas waste heat recovery apparatus, also comprises hydrotreater, and described hydrotreater is connected with high-order softened water tank.
Further, the above-mentioned condensation gas boiler of segmentation step by step flue gas waste heat recovery apparatus, described Multi-section condenser is step by step installed by several small-sized tubulation heat exchange condensers levels or at right angle setting forms.
The beneficial effects of the utility model are:
(1) Multi-section condenser step by step of the present utility model can make the cooling until normal temperature of boiler smoke segmentation, and waste heat energy is heated to nearly boiling by water by normal temperature simultaneously, for boiler directly supplies water, has realized boiler continuous water feeding and dynamic condensation flue gas.
(2) resistance of the present utility model is little, and straight-through tubulation heat exchange, does not increase elbow and any flue gas blocker, and flue gas resistance is very little, does not affect boiler and normally uses.
(3) heat that the utility model reclaims directly enters boiler with minimal path, there is no boiler, there is no circulating pump, has not only reduced heat loss, and boiler thermal output improves obviously, and the thermal efficiency approaches 100%, and has simplified equipment.
(4) the utility model facility compact, simple, small investment, does not increase any power-equipment, therefore long service life.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model.
Fig. 2 is the heat transfer process schematic diagram of the Multi-section condenser step by step of the utility model embodiment 1.
Detailed description of the invention
Below in conjunction with specific embodiment, the utility model is described in further details.
Embodiment 1
As shown in Figure 1, the utility model comprises Multi-section condenser 1 and boiler continuous water feeding control system 2 step by step, boiler continuous water feeding control system 2 one end connect Multi-section condenser 1 step by step, the other end connects boiler, boiler continuous water feeding control system 2 comprises softened water tank 201, high-order softened water tank 202, small pump 203 and variable frequency pump 204, softened water tank 201 one end are connected with high-order softened water tank 202 by small pump 203, high-order softened water tank 202 connects Multi-section condenser step by step, softened water tank 201 other ends connect boiler by variable frequency pump 204, between high-order softened water tank 202 and softened water tank 201, be also connected overflow pipe, also comprise the hydrotreater 206 being connected with high-order softened water tank 202 simultaneously.
The heat transfer process schematic diagram of Multi-section condenser as shown in Figure 2 step by step, flue gas is through Multi-section condenser is cooling step by step step by step, after being down to room temperature, discharge, and soft water to enter after Multi-section condenser is heated to 90-100 DEG C by fume afterheat step by step by boiler continuous water feeding control system be directly boiler water supply, effectively remove the oxygen in soft water, reduce the oxygen corrosion of boiler, extended the service life of boiler.Multi-section condenser adopts full 304# stainless steel tube to do heat conduction step by step, and smoke-box is arranged for straight-through tubulation, and flue circulation area is larger, and flue gas flow rate is lower, and flue gas resistance is little, and cigarette temperature fall is large; By Multi-section condenser step by step, a large amount of water vapours in flue gas are condensed, and produce vacuum effect, thereby have reduced flue gas resistance; Heat exchanger is pressure-bearing (installation blow-down pipe) not, safe and reliable.
Owing to having realized boiler stable and continuous air feed, energy-saving appliance pressure-bearing not again, has farthest ensured the safe operation of boiler and interchanger.The utility model does not increase power consumption (electricity) equipment, adopts pump variable frequency continuous operation, has reduced water pump frequent starting, has reduced power consumption, has extended the water pump life-span.Install after this device, when monitoring energy-saving appliance efficiency, can close energy-saving appliance water-supply valve, recover former low level softened water tank feedwater.
Embodiment 2
As another kind of scheme of the present utility model, other parts are identical with embodiment 1, and difference is: Multi-section condenser adopts at right angle setting step by step.
Adopt at right angle setting, install more compactly on volume, floor space is less.
Claims (4)
1. a segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step, it is characterized in that: comprise Multi-section condenser and boiler continuous water feeding control system step by step, described boiler continuous water feeding control system one end connects Multi-section condenser step by step, and the other end connects boiler.
2. the condensation gas boiler of segmentation step by step flue gas waste heat recovery apparatus according to claim 1, it is characterized in that: described boiler continuous water feeding control system comprises softened water tank, high-order softened water tank, small pump and variable frequency pump, described softened water tank one end is connected with high-order softened water tank by small pump, high-order softened water tank connects Multi-section condenser step by step, the softened water tank other end connects boiler by variable frequency pump, is also connected overflow pipe between high-order softened water tank and softened water tank.
3. the condensation gas boiler of segmentation step by step flue gas waste heat recovery apparatus according to claim 1 and 2, is characterized in that: also comprise hydrotreater, described hydrotreater is connected with high-order softened water tank.
4. the condensation gas boiler of segmentation step by step flue gas waste heat recovery apparatus according to claim 1 and 2, is characterized in that: described Multi-section condenser is step by step installed by several small-sized tubulation heat exchange condensers levels or at right angle setting forms.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339183.5U CN203980639U (en) | 2014-06-24 | 2014-06-24 | Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420339183.5U CN203980639U (en) | 2014-06-24 | 2014-06-24 | Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203980639U true CN203980639U (en) | 2014-12-03 |
Family
ID=51978070
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420339183.5U Expired - Fee Related CN203980639U (en) | 2014-06-24 | 2014-06-24 | Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203980639U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167801A (en) * | 2018-02-01 | 2018-06-15 | 苏州迪森能源技术有限公司 | Boiler carbonated drink processing system |
| CN110385007A (en) * | 2019-07-16 | 2019-10-29 | 河南迪诺环保科技股份有限公司 | A kind of de- whitening method of the flue gas improving heat utilization rate |
-
2014
- 2014-06-24 CN CN201420339183.5U patent/CN203980639U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108167801A (en) * | 2018-02-01 | 2018-06-15 | 苏州迪森能源技术有限公司 | Boiler carbonated drink processing system |
| CN110385007A (en) * | 2019-07-16 | 2019-10-29 | 河南迪诺环保科技股份有限公司 | A kind of de- whitening method of the flue gas improving heat utilization rate |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204254934U (en) | A kind of heating system utilizing compression heat pump to realize the recovery of the residual heat from boiler fume degree of depth | |
| CN104964265A (en) | Energy-saving emission reduction system and energy-saving emission reduction method of horizontal type phase change heat exchanger and front-arrangement type water medium type GGH combined | |
| CN203771380U (en) | Condensation waste heat recovery steam boiler | |
| CN203980639U (en) | Segmentation condensation gas boiler flue gas waste heat recovery apparatus step by step | |
| CN103954039B (en) | Device and method for recycling smoke condensate heat energy of gas boiler in heat pumping mode | |
| CN201875893U (en) | Heat exchange device of condensing gas water heater | |
| CN103900410B (en) | A kind of phase change heat exchange device and heat-exchange method thereof | |
| CN103528386B (en) | Multi-variant phase change waste heat boiler system | |
| CN105571354A (en) | Flue gas waste heat recovery device and method based on double-U-shaped tube shell type heat exchanger | |
| CN104406144A (en) | Double-medium waste heat boiler | |
| CN103994458A (en) | Composite phase change heat exchanger suitable for thermal power generating unit | |
| CN204372879U (en) | A kind of two medium waste heat boiler | |
| CN203404836U (en) | Steam condensation water recovery system | |
| CN206130943U (en) | Clean steam generator | |
| CN202869081U (en) | Device for recovering flue gas and cooling water waste heat of waste heat power generation system | |
| CN203797949U (en) | Integrated membrane wall type condensing vacuum hot water boiler | |
| CN205155924U (en) | Economizer system of thermal power plant | |
| CN205402643U (en) | Electrical heating superheated steam boiler | |
| CN101639213A (en) | Row tube type normal-pressure coal economizer | |
| CN104949100B (en) | A kind of energy saving for power plants system | |
| CN100408192C (en) | Residual-heat used type electric dust separator and its application system | |
| CN204648198U (en) | Recycling of condensed steam system | |
| CN204285801U (en) | Integral type condensation minute-pressure Phase transformation boiler | |
| CN217737559U (en) | Integrated gas-fired hot water boiler | |
| CN209558318U (en) | Boiler heat recovery system |
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 |
Granted publication date: 20141203 Termination date: 20160624 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |