CN205481074U - Energy -conserving clean system of coal -fired steam boiler - Google Patents
Energy -conserving clean system of coal -fired steam boiler Download PDFInfo
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- CN205481074U CN205481074U CN201620296604.XU CN201620296604U CN205481074U CN 205481074 U CN205481074 U CN 205481074U CN 201620296604 U CN201620296604 U CN 201620296604U CN 205481074 U CN205481074 U CN 205481074U
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Abstract
The utility model discloses an energy -conserving clean system of coal -fired steam boiler belongs to coal -fired steam boiler equipment field. It includes coal -fired steam boiler, condensate recovering unit, dust collector, alkali lye pond and pump, coal -fired steam boiler include inlet tube and floss hole, coal -fired steam boiler's floss hole, condensate recovering unit, dust collector and alkali lye pond connect gradually through the pipeline, coal -fired steam boiler's inlet tube and condensate recovering unit between connect through the pump. The utility model discloses can purify coal -fired steam boiler's flue gas, detach dust and SO2 in the flue gas, avoid environmental pollution and cause harm to the human body, simultaneously, can retrieve steam water condensation in the flue gas, reduce the boiler water volume to and improving heat utilization efficiency, the energy saving has simple structure, convenient to use, easy to carry out's advantage.
Description
Technical field
This utility model belongs to coal-fired steam boiler apparatus field, more particularly, it relates to a kind of coal-fired steam boiler energy-saving and purifying
System.
Background technology
The function of coal-fired steam boiler is i.e. as the energy with coal, and water adds the water vapour being thermally generated certain pressure.Coal-fired steam pot
Stove uses coal as fuel at stove chamber inner combustion, thus the heat of release is heated the water in body of heater, in making body of heater
Water is converted into steam.Verticle coal-burning stem boiler generally comprises body of heater, is provided with the burner hearth as combustion heat release district at lower portion of furnace body,
Be provided with along burning coal-feeding door, anti-burning coal-feeding door and shoot door at described burner hearth, described body of heater be provided with chimney, steam (vapor) outlet,
The parts such as relief valve.Fire coal, at stove chamber inner combustion, produces and discharges heat and heat body of heater, and the cigarette of generation is arranged by chimney
Putting, the coal ash of residual is then cleared up at shoot door.The flue gas that coal-fired steam boiler produces in running is a kind of polluter, because of
For the dust produced when burning containing coal in flue gas and SO2Deng gas, it is directly discharged in air if not carrying out process, certainly will
Pollute environment and human body is damaged, and coal ash is easily piled up in chimney, is not easily cleaned, causes obstruction.Therefore, right
The process of coal-fired steam boiler flue gas increasingly comes into one's own.Additionally, containing part water vapour in flue gas, take away the portion of coal combustion
Divide heat, reduce the utilization rate of calory burning.
Prior art, existing multiple dust-removing desulfurating apparatus comes out, but existing dust-removing desulfurating apparatus general structure is more complicated, investment relatively
Greatly, more with water, thus promote and have difficulties, especially for middle-size and small-size coal-fired steam boiler, promote increasingly difficult；Furthermore,
Some apparatus functions are single, are only capable of dedusting or desulfurization, cause a lot of medium and small boiler only to join dust arrester, are unworthy of desulfurizer, or
Person is mounted with that desulfurizer does not uses.As China Patent Publication No. is: CN 102135275 A, publication date is: 2011 7
The patent documentation on the moon 27, discloses a kind of smoke purification energy-saving device of coal-fired steam boiler, is at former coal-fired steam boiler chimney
Utilidor is installed in exit, then is connected with thermal conductive metal pipe and introduces in insulating cement pond, by cool water heating in pond, then
Be passed through after its dust-filtering being fallen by plastics dust cartridge filter equipped with in the plastic barrel of water fog generator so that it is with sulfur oxide and
The harmful gas of carbon monoxide is fully reacted with water smoke, generates at the bottom of dilute sulfuric acid and dilute carbonic acid mixed liquor sink to tin and is reclaimed, reaches
Dedusting, the purpose of removing and harmful gas, but this apparatus structure is complex, and investment is relatively big, and the holdup time is relatively in flue for flue gas
Long, cause circulating not smooth, on the one hand causing burner hearth, coal combustion efficiency reduces, and on the other hand flue gas can fall discharge from burner hearth.
And for example, China Patent Publication No. is: CN 202868716 U, and publication date is: the patent documentation on April 10th, 2013,
Disclosing a kind of coal-fired steam boiler that can be automatic pressure-controlled, have floss hole and air inlet, floss hole connects to have by pipeline and draws
Blower fan, air-introduced machine passes through pipeline connection chimney, and air inlet connects aerator by pipeline, and air-introduced machine connects to have and draws for control
The air-introduced machine converter of rotation speed of fan, aerator connects the blower variable frequency device for controlling blower speed, coal-fired steam pot
Being provided with pressure transmitter and secondary meter on stove, secondary meter connects air-introduced machine converter and blower variable frequency device, this practicality
Novel can be automatic pressure-controlled coal-fired steam boiler, use pressure transmitter to gather boiler pressure and send secondary meter to, pass through
Secondary meter output control electric current reaches to control rotation speed of fan to converter and carrys out the purpose of pressure control, solves tradition coal-fired steam boiler
Pressure control is wasted time and energy, the problem also wasting resource, and improved method is simple, it is simple to practical, is greatly saved manpower and cost.
But this coal-fired steam boiler does not have dust-removal and desulfurizing function, flue gas is directly discharged in air, pollutes environment and to human body
Work the mischief.
Summary of the invention
1, problem to be solved
For the flue gas that existing coal-fired steam boiler produces contains dust and SO2Deng gas, it is directly discharged in air cause ring
Environment pollution and the problem that human body is worked the mischief, this utility model provides a kind of coal-fired steam boiler energy-saving and purifying system, it is possible to
The flue gas of coal-fired steam boiler is purified, removes the dust in flue gas and SO2, it is to avoid environmental pollution and human body is caused danger
Evil；Recycle meanwhile, it is capable to the steam in flue gas to be carried out condensation, reduce boiler feed water amount, and improve heat utilization ratio,
Saving the energy, this device structure is simple, it is easy to implement.
2, technical scheme
For solving the problems referred to above, this utility model adopts the following technical scheme that.
A kind of coal-fired steam boiler energy-saving and purifying system, including coal-fired steam boiler, condensate water recovery device, dust arrester, alkali
Liquid pool and pump；Described coal-fired steam boiler includes water inlet pipe and floss hole；The floss hole of described coal-fired steam boiler, condensation
Apparatus for recovering, dust arrester and alkali liquor pond are sequentially connected with by pipeline；The water inlet pipe of described coal-fired steam boiler and condensed water
Connected by pump between retracting device.
As further improvement of the utility model, the pipeline between described dust arrester and alkali liquor pond is provided with boiler fan.
As further improvement of the utility model, described condensate water recovery device is closed condensate water recovery device.
As further improvement of the utility model, described dust arrester is cyclone dust extractor.
As further improvement of the utility model, described coal-fired steam boiler is provided with air inlet, and air inlet is connected by pipeline
There is aerator.
As further improvement of the utility model, described coal-fired steam boiler is provided with pressure transmitter and secondary meter；
Described pressure transmitter and secondary meter connect, and are connected by converter between secondary meter and aerator.
3, beneficial effect
Compared to prior art, the beneficial effects of the utility model are:
(1) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, improves existing coal-fired steam boiler, pot
The flue gas that stove produces first passes around the reclamation of condensate water that condensate water recovery device will contain in flue gas, and by pump by condensed water
Being transmitted back to coal-fired steam boiler, this condensed water not only water quality is good but also contains substantial amounts of heat, reduces industrial water amount, improves
Heat utilization ratio, saves the energy；Flue gas after condensed apparatus for recovering passes through dust arrester, removes dust；Finally, flue gas
SO is removed through alkali liquor pond2Enter in air Deng after sour gas；This device can effectively remove the dust in coal-fired steam boiler flue gas,
And SO2Deng sour gas, clearance reaches more than 99%, reaches the purpose of purifying smoke；
(2) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, the pipeline between dust arrester and alkali liquor pond is pacified
Equipped with boiler fan, in system pipeline, produce negative pressure so that the flue gas that boiler produces can flow in pipeline smoothly, carries
High flow of flue gas speed, it is to avoid because flue gas flow distance in pipeline is longer, the related device resistance of process is relatively big, and cause
Flue gas falls to discharge from coal-fired steam boiler；
(3) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, uses closed condensate water recovery device, its energy
Source recovery utilization rate reaches more than 95%, decreases loss and the thermal pollution softening water, fully saves fuel and soften water resource；
(4) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, dust arrester uses cyclone dust extractor, structure letter
Single, it is easy to manufacturing, install and maintenance management, equipment investment and operating cost are the most relatively low, and are applicable to the purification of high-temperature flue gas；
(5) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, can be roused by aerator in coal-fired steam boiler
Wind, according to the theory of combustion, controls air quantity and just can control burning of coal, the most just can control the pressure of steam；Aerator uses frequency conversion
Device controls, and by pressure transmitter Real-time Collection boiler pressure signal, delivers to secondary meter, and secondary meter exports through computing
Current signal controls the converter of aerator, and then the rotating speed of control blower motor, can realize Automated condtrol boiler pressure,
Solve tradition coal-fired steam boiler pressure control to waste time and energy, the problem also wasting resource；
(6) a kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, simple in construction, reasonable in design, it is easy to implement.
Accompanying drawing explanation
Fig. 1 is operation principle block diagram of the present utility model.
Detailed description of the invention
Below in conjunction with specific embodiments and the drawings, this utility model is further described below.
Embodiment 1
As it is shown in figure 1, a kind of coal-fired steam boiler energy-saving and purifying system of the present embodiment, including coal-fired steam boiler, condensed water
Retracting device, dust arrester, alkali liquor pond and pump.
Wherein, described coal-fired steam boiler is Verticle coal-burning stem boiler, and it includes water inlet pipe and floss hole；Described fire coal
The floss hole of steam boiler, condensate water recovery device, dust arrester and alkali liquor pond are sequentially connected with by pipeline；Described coal-fired steaming
Connected by pump between water inlet pipe and the condensate water recovery device of boiler furnace.
In the present embodiment, described condensate water recovery device is closed condensate water recovery device, and its energy recovery utilization rate reaches
More than 95%, decrease loss and the thermal pollution softening water, fully save fuel and soften water resource；Described dust arrester is
Cyclone dust extractor, simple in construction, it is easy to manufacturing, install and maintenance management, equipment investment and operating cost are the most relatively low, and be suitable for
Purification in high-temperature flue gas.
In the present embodiment, the pipeline between described dust arrester and alkali liquor pond is provided with boiler fan, in system pipeline
Produce negative pressure so that the flue gas that coal-fired steam boiler produces can flow in pipeline smoothly, improve flow of flue gas speed, keep away
Exempt from because flue gas flow distance in pipeline is longer, the related device resistance of process is relatively big, and the flue gas caused is from coal-fired steam boiler
Fall to discharge.
During specific works, the flue gas that coal-fired steam boiler produces first passes around condensate water recovery device by cold for the steam contained in flue gas
Solidifying Water Sproading, and by pump, condensed water is transmitted back to coal-fired steam boiler；Then, the flue gas after condensed apparatus for recovering passes through
Dust arrester, removes the dust in flue gas；Finally, flue gas removes SO through alkali liquor pond2Deng entering after sour gas in air, reach
Purpose to energy-saving and purifying.
A kind of coal-fired steam boiler energy-saving and purifying system of the present utility model, can effectively remove the dust in coal-fired steam boiler flue gas,
Avoid coal ash to pile up in chimney, cause obstruction, also can remove SO2Deng sour gas, clearance reaches more than 99%, it is to avoid straight
Run in the environmental pollution caused into air, reach the purpose of purifying smoke；Meanwhile, the steam in flue gas is carried out condensation and reclaims,
Reduce boiler for producing water consumption, improve heat utilization ratio, reach energy-conservation purpose.
Embodiment 2
A kind of coal-fired steam boiler energy-saving and purifying system of the present embodiment, is with the difference of embodiment 1: described fire coal
Steam boiler is provided with air inlet, and air inlet is connected by pipeline aerator；It is provided with pressure on described coal-fired steam boiler to become
Send device and secondary meter, pressure transmitter and secondary meter to connect, connected by converter between secondary meter and aerator.?
In the present embodiment, aerator uses Frequency Converter Control, by pressure transmitter Real-time Collection boiler pressure signal, delivers to secondary
Instrument, secondary meter controls the converter of aerator through computing output current signal, and then controls the rotating speed of blower motor.
Achieve the closed loop control of steam pressure, the rotating speed of blower motor, follow the change of coal-fired steam boiler pressure size and change,
When coal-fired steam boiler real-time pressure is close to target pressure value, aerator is automatically maintained at slow-speed of revolution operation, it is achieved that automatization is controlled
Boiler pressure processed, has reached further energy-conservation effect.
Schematically being described this utility model and embodiment thereof above, this description does not has restricted, shown in accompanying drawing
Be also one of embodiment of the present utility model, actual structure is not limited thereto.So, if this area is common
Technical staff is enlightened by it, in the case of creating objective without departing from this utility model, designs and this technology without creative
Frame mode that scheme is similar and embodiment, all should belong to protection domain of the present utility model.
Claims (6)
1. a coal-fired steam boiler energy-saving and purifying system, including coal-fired steam boiler, it is characterised in that: also include that condensed water returns
Receiving apparatus, dust arrester, alkali liquor pond and pump；Described coal-fired steam boiler includes water inlet pipe and floss hole；Described coal-fired steaming
The floss hole of boiler furnace, condensate water recovery device, dust arrester and alkali liquor pond are sequentially connected with by pipeline；Described coal-fired steam
Connected by pump between water inlet pipe and the condensate water recovery device of boiler.
A kind of coal-fired steam boiler energy-saving and purifying system the most according to claim 1, it is characterised in that: described dedusting dress
Put, on the pipeline between alkali liquor pond, boiler fan is installed.
A kind of coal-fired steam boiler energy-saving and purifying system the most according to claim 1 and 2, it is characterised in that: described is cold
Solidifying apparatus for recovering is closed condensate water recovery device.
A kind of coal-fired steam boiler energy-saving and purifying system the most according to claim 1 and 2, it is characterised in that: described removes
Dirt device is cyclone dust extractor.
A kind of coal-fired steam boiler energy-saving and purifying system the most according to claim 1, it is characterised in that: described coal-fired steaming
Boiler furnace is provided with air inlet, and air inlet is connected by pipeline aerator.
A kind of coal-fired steam boiler energy-saving and purifying system the most according to claim 5, it is characterised in that: described coal-fired steaming
Pressure transmitter and secondary meter it is provided with on boiler furnace；Described pressure transmitter and secondary meter connect, secondary meter and drum
Connected by converter between blower fan.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296604.XU CN205481074U (en) | 2016-04-08 | 2016-04-08 | Energy -conserving clean system of coal -fired steam boiler |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620296604.XU CN205481074U (en) | 2016-04-08 | 2016-04-08 | Energy -conserving clean system of coal -fired steam boiler |
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| Publication Number | Publication Date |
|---|---|
| CN205481074U true CN205481074U (en) | 2016-08-17 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620296604.XU Expired - Fee Related CN205481074U (en) | 2016-04-08 | 2016-04-08 | Energy -conserving clean system of coal -fired steam boiler |
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| CN (1) | CN205481074U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827164A (en) * | 2019-02-13 | 2019-05-31 | 大唐绥化热电有限公司 | The Verticle coal-burning stem boiler circulatory system and round-robin method |
-
2016
- 2016-04-08 CN CN201620296604.XU patent/CN205481074U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109827164A (en) * | 2019-02-13 | 2019-05-31 | 大唐绥化热电有限公司 | The Verticle coal-burning stem boiler circulatory system and round-robin method |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160817 Termination date: 20180408 |