CN207006114U - A kind of energy conserving system of boiler - Google Patents
A kind of energy conserving system of boiler Download PDFInfo
- Publication number
- CN207006114U CN207006114U CN201720486372.9U CN201720486372U CN207006114U CN 207006114 U CN207006114 U CN 207006114U CN 201720486372 U CN201720486372 U CN 201720486372U CN 207006114 U CN207006114 U CN 207006114U
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- water
- heat exchanger
- boiler
- oxygen
- sweet
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Abstract
It the utility model is related to a kind of energy conserving system of boiler, including boiler and DW system demineralized water system, it is connected with air preheater, electric cleaner, heat exchanger, air-introduced machine, desulfuration absorbing tower and chimney on the back-end ductwork of boiler in turn, DW system demineralized water system includes sweet-water tank, oxygen-eliminating device and deaerator storage tank；Sweet-water tank outfall sewer sets desalination water pump on road, sweet-water tank outfall sewer sets distributive pipe on road, the water inlet of distributive pipe connection heat exchanger all the way, another way distributive pipe connects oxygen-eliminating device, recirculation pump is set between the delivery port and water inlet of heat exchanger, a water part for heat exchanger delivery port outflow is controlled by control valve to be flowed into oxygen-eliminating device, and another part is incorporated to the sweet-water tank distributive pipe of the water inlet of heat exchanger by recirculation pump, and the water in deaerator storage tank passes through feed pump and flowed into boiler.The utility model utilizes the waste-heat demineralized water of flue gas, reduces the steam consumption of oxygen-eliminating device heating, and reduces the consumption of desulfurization process water, while reduces the exhaust gas temperature of flue gas.
Description
Technical field
It the utility model is related to a kind of energy conserving system of boiler.
Background technology
In the flue gas of boiler emission based on main sulfur compound, sulfide, which meets water condensation, can form sulfuric acid vapor, easily right
The part of boiler tail is caused to corrode, therefore the flue gas in industry typically using higher temperature is discharged, on avoiding the occurrence of
State corrosion phenomenon.By test, for the flue-gas temperature of existing boiler emission at 140 DEG C or so, directly discharge causes hot loss of energy
With the waste of the energy, it is very necessary how research using the waste heat of flue gas reaches the purpose of energy-conservation.
Utility model content
The utility model is based on above-mentioned reason and proposes a kind of energy conserving system of boiler, makes full use of the remaining of boiler smoke
Heat reaches the purpose of energy-conservation.
To achieve these goals, technical scheme is used by the utility model：
A kind of energy conserving system of boiler, including boiler and DW system demineralized water system, it is sequentially connected on the back-end ductwork of boiler free
Air preheater, electric cleaner, heat exchanger, air-introduced machine, desulfuration absorbing tower and chimney, DW system demineralized water system include sweet-water tank, deoxygenation
Device and deaerator storage tank；Desalination water pump is installed, sweet-water tank outfall sewer road, which is provided with, to be divided on sweet-water tank outfall sewer road
The water inlet of water pipe, all the way distributive pipe connection heat exchanger, another way distributive pipe connection oxygen-eliminating device, the delivery port of heat exchanger and water inlet
Recirculation pump is provided between mouthful, is controlled and flowed into oxygen-eliminating device by control valve by the water part that heat exchanger delivery port flows out, separately
A part is incorporated to the sweet-water tank distributive pipe of the water inlet of heat exchanger by recirculation pump, the water in deaerator storage tank by
Water pump is flowed into boiler.
The water temperature that the heat exchanger delivery port is flowed into oxygen-eliminating device is 90 DEG C.
The utility model is by transforming original steam generator system, and using the waste-heat demineralized water of flue gas, reduction removes
The steam consumption of oxygen device heating, and the consumption of desulfurization process water is reduced, while reduce the exhaust gas temperature of flue gas.
The utility model is further elaborated below by way of the drawings and specific embodiments.
Brief description of the drawings：
Fig. 1 is the theory structure schematic diagram of energy conserving system.
Embodiment：
As shown in figure 1, a kind of energy conserving system of boiler provided by the utility model, mainly fully recycles boiler smoke
The waste heat of gas reaches the purpose of energy-conservation, and it mainly on existing boiler 6 and DW system demineralized water system carries out transformation and formed.Boiler
The air preheater 7 being sequentially connected, electric cleaner 8, heat exchanger 12, air-introduced machine 9, desulfuration absorbing tower are installed on the flue of 6 afterbodys
10 and chimney 11.DW system demineralized water system includes sweet-water tank 1, the oxygen-eliminating device 3 and deaerator storage tank 4 of deoxygenation is carried out to demineralized water, removes
Desalination water pump 2 is installed on outfall sewer road in brine tank 1.The demineralized water quilt flowed out from the outfall sewer road of sweet-water tank 1
Two-way distributive pipe is shunted, and distributive pipe is attached with oxygen-eliminating device 3 all the way, the water inlet of another way distributive pipe and heat exchanger 12
It is connected.Two-way is also split into from the water of the delivery port of heat exchanger 12 outflow, a-road-through overregulates valve 14 and is sent to oxygen-eliminating device 3
In, another way is sent back in the deoxygenation water tank distributive pipe of the water inlet of heat exchanger 12 by recirculation pump 13, and changed with flow direction
The demineralized water of the hot water inlet of device 12 is mixed.Water in deaerator storage tank 4 is flowed into boiler 6 by feed pump 5.
After heat exchanger 12 is laid in into electric cleaner 8 in said system, flue gas is removed beforehand through electric cleaner 8
Dirt operation, it is possible to reduce the blocking and abrasion of dust heat exchanging device 12, reduce the coverage of flue gas after cooling.Said system is entered
The demineralized water for entering oxygen-eliminating device 3 is divided into two-way, comes from the normal temperature demineralized water in sweet-water tank 1 all the way, another way be by
Demineralized water after the heating of heat exchanger 12, the water temperature of the demineralized water after the heating are controlled at 90 DEG C, the demineralized water of this part heating
Water controls flow by single control valve 14, and the exhaust gas temperature for so also just controlling flue gas after exchanging heat simultaneously maintains
Between 90~110 DEG C, the corrosion of afterbody equipment is prevented.Integrally improved into the demineralized water water temperature in oxygen-eliminating device 3, reduce deoxygenation
Device heats the consumption of steam.
The control of the inflow temperature of heat exchanging device 12 is to be gone back to the water part of heat exchanger 12 by increased recirculation pump 13
It is sent to water inlet end and carries out temperature adjustment realization, the water into the water inlet of heat exchanger 12 is returned by the demineralized water of normal temperature and by recirculation pump 13
Demineralized water after the heating sent mixes, and so ensures that the water temperature of the water inlet cold end of heat exchanger 12, can be followed again by control
The output flow of ring pump 13 adjusts the water inlet water temperature of heat exchanger 12, avoids the corrosion of cold end element.
The course of work of said system is：Boiler 6 uses demineralized water to be delivered to as working medium, demineralized water by desalination water pump 2
Heated in oxygen-eliminating device 3 with steam, deoxygenation of seething with excitement, the demineralized water after deoxygenation enters in deaerator storage tank 4, is sent by feed pump 5
To boiler 6, the steam after heating is finally fed to heat supply user use.Flue gas after the fuel combustion of boiler 6 first passes through sky
The combustion-supporting air of the heat of flue gas of air preheater 7, while reduce the temperature of flue gas.Flue gas after cooling removes into electricity
Dirt device 8 removes the dust in flue gas, then the cooling of flue gas and the recovery of waste heat are carried out by heat exchanger 12, finally by air inducing
Flue gas is sent into desulfuration absorbing tower 10 and carries out desulfurization process by machine 9, is discharged after desulfurization by chimney 11.
Above example only to illustrate the technical solution of the utility model and unrestricted, those of ordinary skill in the art couple
Other modifications or equivalent substitution that the technical solution of the utility model is made, without departing from technical solutions of the utility model
Spirit and scope, it all should cover in right of the present utility model.
Claims (2)
- A kind of 1. energy conserving system of boiler, it is characterised in that：Including boiler and DW system demineralized water system, on the back-end ductwork of boiler successively Air preheater, electric cleaner, heat exchanger, air-introduced machine, desulfuration absorbing tower and chimney are connected with, DW system demineralized water system includes demineralized water Case, oxygen-eliminating device and deaerator storage tank；Desalination water pump is installed, on sweet-water tank outfall sewer road on sweet-water tank outfall sewer road Water inlet provided with distributive pipe, all the way distributive pipe connection heat exchanger, another way distributive pipe connection oxygen-eliminating device, the delivery port of heat exchanger Recirculation pump is provided between water inlet, is controlled by the water part that heat exchanger delivery port flows out by control valve and flows into oxygen-eliminating device Interior, another part is incorporated to the sweet-water tank distributive pipe of the water inlet of heat exchanger by recirculation pump, the water in deaerator storage tank Flowed into by feed pump in boiler.
- A kind of 2. energy conserving system of boiler according to claim 1, it is characterised in that：The heat exchanger delivery port is flowed into and removed Water temperature in oxygen device is 90 DEG C.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720486372.9U CN207006114U (en) | 2017-05-04 | 2017-05-04 | A kind of energy conserving system of boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720486372.9U CN207006114U (en) | 2017-05-04 | 2017-05-04 | A kind of energy conserving system of boiler |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207006114U true CN207006114U (en) | 2018-02-13 |
Family
ID=61443794
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720486372.9U Expired - Fee Related CN207006114U (en) | 2017-05-04 | 2017-05-04 | A kind of energy conserving system of boiler |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207006114U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110513673A (en) * | 2019-08-05 | 2019-11-29 | 陈其钻 | Steam turbine generator applies the moisturizing pre-heating system and its method in middle pressure oxygen-eliminating device |
| CN111120993A (en) * | 2018-10-31 | 2020-05-08 | 上海东冠纸业有限公司 | Water supply backflow system of deaerator |
| CN111609393A (en) * | 2020-05-29 | 2020-09-01 | 青岛创客智造机械设备有限公司 | Boiler synergy integration system |
| CN112984486A (en) * | 2021-02-26 | 2021-06-18 | 西安西热锅炉环保工程有限公司 | Energy-saving and emission-reducing system and method for small and medium-sized natural gas boilers |
-
2017
- 2017-05-04 CN CN201720486372.9U patent/CN207006114U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111120993A (en) * | 2018-10-31 | 2020-05-08 | 上海东冠纸业有限公司 | Water supply backflow system of deaerator |
| CN110513673A (en) * | 2019-08-05 | 2019-11-29 | 陈其钻 | Steam turbine generator applies the moisturizing pre-heating system and its method in middle pressure oxygen-eliminating device |
| CN111609393A (en) * | 2020-05-29 | 2020-09-01 | 青岛创客智造机械设备有限公司 | Boiler synergy integration system |
| CN111609393B (en) * | 2020-05-29 | 2022-04-29 | 青岛创客智造机械设备有限公司 | Boiler synergy integration system |
| CN112984486A (en) * | 2021-02-26 | 2021-06-18 | 西安西热锅炉环保工程有限公司 | Energy-saving and emission-reducing system and method for small and medium-sized natural gas boilers |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180213 Termination date: 20190504 |
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| CF01 | Termination of patent right due to non-payment of annual fee |