CN207471512U - A kind of boiler evaporator system - Google Patents
A kind of boiler evaporator system Download PDFInfo
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- CN207471512U CN207471512U CN201721488233.6U CN201721488233U CN207471512U CN 207471512 U CN207471512 U CN 207471512U CN 201721488233 U CN201721488233 U CN 201721488233U CN 207471512 U CN207471512 U CN 207471512U
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- boiler
- evaporator
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- temperature superheater
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Abstract
The utility model is related to a kind of boiler evaporator systems, mainly solve the problems, such as that capacity efficiency in the prior art is low, pollutes Environmental Technology, the utility model links together low temperature superheater import header and drum down-comer by using Pyatyi evaporator, it is used in conjunction with water inlet, low temperature superheater is exported to high temperature superheater pipeline to block, in pipe ends mouth blank off.It is outlet header after former low temperature superheater import header technological transformation, low temperature superheater outlet header accesses boiler increase in pipeline side by side, the valve for adjusting temperature is installed after level-one secondary evaporimeter outlet header, the saturated vapor being released is directly entered after high temperature superheater heating enters steam turbine through super-heater exit case on pipeline.The technical solution preferably resolves the problem, in being used available for boiler evaporator system production.
Description
Technical field
The utility model is related to a kind of boiler evaporating apparatus fields, are related specifically to a kind of boiler evaporator system.
Background technology
The utility model provides a kind of raising exhaust gas temperature, improves boiler thermal efficiency, final to improve unit generation effect
Benefit.Meet the method that the technology of denitration import smoke temperature and boiler export vapor (steam) temperature more than 380 degree requires.
In present boiler operatiopn, boiler is 5 days or so after internal heating surface cleaning is carried out, in 490 ~ 525 DEG C of import smoke temperature
During normal operation, exhaust gas temperature is higher than 200 DEG C；Oxygen-eliminating device reduces operating pressure in 130 DEG C of 0.2mpa temperature;Boiler exhaust gas
197 ~ 201 DEG C of temperature, as long as and normal 160-180 DEG C of desulphurization system temperature, longtime running temperature are high, influence the desulfurization of glass factory
System causes desulphurization system not qualified discharge, and severe environmental protection is caused to influence, and causes our company that need to stop transport within one week boiler rinsing one
Secondary, cleaning 20 hours, every time cleaning every time needs 10 artificial rotation cleanings, and 5 people of per tour, cost of labor is larger, cleans every time
3000 yuan of expense.
For such case, exhaust gas temperature is reduced, economizer, the temperature reduction except oxygen evaporator will be entered, before increase
The heat absorption of face evaporator header.It is first evaporator by the technological transformation of boiler low-temperature superheater, former level Four evaporator is increased to five
Grade evaporator.Evaporation capacity is improved, changes original mode by absorbing heat, achievees the purpose that reduce temperature.
Utility model content
Technical problem to be solved in the utility model is high fume temperature and boiler duty in the prior art
Problem.A kind of boiler evaporator system is provided, the boiler evaporator system is few with environmental protection, exhaust gas temperature low-key and cleaning time
The characteristics of.
In order to solve the above technical problems, the technical solution used is as follows：Including heating unit, economizer, except flue
And inlet pipeline, the heating unit includes one and forms circulation loop to Pyatyi evaporator, described one to Pyatyi evaporator, described
Except flue is made of gas inlet and exhanst gas outlet, gas inlet is set to the bottom of Pyatyi evaporator, and exhanst gas outlet is set
Put the top of Pyatyi evaporator；The inlet pipeline is by water inlet pipe, heating pipe, down-comer, tedge and steam output pipe group
Into water inlet pipe and heating pipe are connected to low temperature superheater, and down-comer and tedge are connected to high temperature superheater.
The operation principle of the utility model is：Low temperature superheater is exported to high temperature superheater and is blocked by pipeline, in pipeline two
Port blank off is equipped with the valve for adjusting temperature on the pipeline after one secondary evaporimeter outlet header.High temperature heater (HTH) to by
The saturated vapor released in drum enters steam turbine after being heated.Pyatyi evaporator forms circulation loop.Except fume pipe
Entrance is provided with denitrification apparatus in road.One secondary evaporimeter is arranged on the right side except flue.
In above-mentioned technical proposal, for optimization, further, the boiler evaporator system includes Pyatyi evaporator.
In above-mentioned technical proposal, outlet collection of the low temperature superheater import technological transformation for access boiler increase in pipeline side by side
Case.
Further, the low temperature superheater is exported to high temperature superheater and is blocked by pipeline, in pipe ends mouth blank off.
In above-mentioned technical proposal, the low temperature superheater import accesses the outlet header of boiler increase in pipeline side by side.
Further, a secondary evaporimeter is set up in parallel, and three-level evaporator is arranged on the left of level Four evaporator, Pyatyi
Evaporator is arranged on the lower section of level Four evaporator.
Further, the denitration entrance is arranged on the lower section of three-level evaporator.
Further, the gas that a secondary evaporimeter is discharged through transmission pipeline be transferred to oxygen-eliminating device discharged or
Discharge.
For by the maximum amount of discharge of flue gas, denitrification apparatus includes denitration outlet and denitration entrance, secondary evaporimeter is transmitted
The flue gas come effectively filters discharge through denitration entrance.
It, can be with by deaerating plant except oxygen evaporator includes firsts and seconds oxygen-eliminating device for by the maximum amount of discharge of flue gas
Extra oxygen is effectively removed, reduces furnace temperature.
To improve efficiency, it is preferable that economizer includes firsts and seconds economizer, since economizer is that one kind is installed on pot
The waste-heat recovery device of stove back-end ductwork lower part can absorb the heat of low-temperature flue gas, reduce the exhaust gas temperature of flue gas, save energy
Efficiency is improved in source.
In the utility model, exhaust gas temperature reaches 174 DEG C after being transformed except flue temperature, 392 DEG C of main steam temperature.Make
After the present embodiment, significant effect is achieved, solves the problems, such as high fume temperature, also improve boiler duty, generated electricity
Load goes up 200kw.h on the basis of original, and to be weekly reduced to cleaning in 50 days primary by original for blowing out scavenging period,
Tool statistics：One 6.5MW unit, every year because of exhaust gas temperature height stoppage in transit boiler 48 times, each blowing out stops to starting 20 hours
Transporting primary reduction generation load, 3000KW.h, station-service electricity are calculated according to 10% per hour, are calculated per kilowatt hour according to 0.5 yuan, often
Year because of 129.6 ten thousand yuan of shutdown loss.It stops transport less after transformation 40 times, is equivalent to 1,080,000 yuan of reduction loss, labor intensive of stopping transport every time
3000 yuan or so.The program the there are the problem of be obtained for thorough solution, decrease this spending.The embodiment scheme
Increase generated energy per hour up to 200kw/h, it is annual to increase by 1640000 kw/h of generated energy, 820,000 yuan of increase income.
The utility model boiler evaporator system compared with the prior art, has the advantages that：
Effect one, low temperature superheater is exported to high temperature superheater and is blocked by pipeline, in pipe ends mouth blank off, can drop
Low exhaust gas temperature improves equipment service efficiency.
Effect two, low temperature superheater outlet header access boiler increase in pipeline side by side, export and collect in level-one secondary evaporimeter
Valve is installed, available for adjusting temperature, according to exhaust gas temperature size controlling opening of valve size after case on pipeline.
Effect three, Pyatyi evaporator, which can effectively improve, to be excluded flue gas, improves production capacity and the longtime running that ensures safety.
Effect four, two level economizer can effective recovery waste heat, reduce flue gas exhaust gas temperature, save the energy, improve efficiency.
Description of the drawings
Fig. 1 is the system flow chart of the utility model boiler evaporator system.
Specific embodiment
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, with reference to embodiments, to this
Utility model is further elaborated.It should be appreciated that specific embodiment described herein is only used to explain this practicality
It is novel, it is not used to limit the utility model.
Embodiment 1
The present embodiment provides a kind of boiler evaporator system, such as Fig. 1, boiler evaporator system includes heating unit, saves coal
Device, except flue and inlet pipeline, the heating unit includes one to Pyatyi evaporator, it is described except flue by flue gas into
Mouth and exhanst gas outlet composition, gas inlet are set to the bottom of Pyatyi evaporator, the top of exhanst gas outlet and Pyatyi evaporator；Institute
It states inlet pipeline to be made of water inlet pipe, heating pipe, down-comer, tedge and steam output pipe, water inlet pipe and heating pipe connect
Low temperature superheater is connected to, down-comer and tedge are connected to high temperature superheater.
The workflow of the present embodiment：
Pyatyi evaporator is set to improve evaporation capacity, by way of changing and absorbing heat, to be used in conjunction with water inlet, by low temperature mistake
Hot device is exported to high temperature superheater pipeline and blocks, in pipe ends mouth blank off.Former low temperature superheater import header is changed to export
Header, low temperature superheater outlet header access boiler increase in pipeline side by side, after level-one secondary evaporimeter outlet header on pipeline
Valve for adjusting temperature is installed, according to exhaust gas temperature size controlling opening of valve size, saturated vapor is without low temperature mistake
Hot device heating is directly entered after high temperature superheater heating and enters steam turbine through super-heater exit case.Exhaust gas temperature reaches after transformation
To 174 DEG C, 392 DEG C of main steam temperature.
Flue gas trend is to flow to drum from level-one evaporator or secondary evaporimeter or three-level evaporator section, is evaporated from level Four
Device or Pyatyi evaporator section flow to drum；Level-one evaporator, secondary evaporimeter, three-level evaporator, level Four evaporator flue gas
Part flow to drum, by drum flow direction in high-temperature evaporator.
For by the maximum amount of discharge of flue gas, it is preferable that the denitrification apparatus includes denitration outlet and denitration entrance, by two level
The flue gas that evaporator transmission comes effectively filters discharge through denitration entrance.
For by the maximum amount of discharge of flue gas, it is preferable that it is described except oxygen evaporator includes firsts and seconds oxygen-eliminating device, by removing
Oxygen device can effectively remove extra oxygen, reduce furnace temperature.
To improve efficiency, it is preferable that the economizer includes firsts and seconds economizer, since economizer is a kind of installation
Waste-heat recovery device in boiler back end ductwork lower part can absorb the heat of low-temperature flue gas, reduce the exhaust gas temperature of flue gas, section
The energy is saved, improves efficiency.
To ensure the stability and reliability of evaporation effect, boiler evaporator is made of Pyatyi evaporator, Pyatyi evaporation
Device forms vaporization cycle circuit, improves evaporation efficiency, ensure that the long-term safety stable operation of boiler evaporator system equipment.
Using this embodiment scheme, exhaust gas temperature reaches 174 DEG C after being transformed except flue temperature, main steam temperature 392
℃.After the present embodiment, significant effect is achieved, solves the problems, such as high fume temperature, also improves boiler duty,
Generation load increases 200kw.h on the basis of original, and blowing out scavenging period is cleaned by original being weekly reduced to 50 days
Once, tool statistics：One 6.5MW unit, every year because of exhaust gas temperature height stoppage in transit boiler 48 times, each blowing out is small to starting 20
When, 3000KW.h, station-service electricity calculate primary reduction generation load of stopping transport according to 10% per hour, per kilowatt hour according to 0.5 yuan of meter
It calculates, every year because of 129.6 ten thousand yuan of shutdown loss.It stops transport less after transformation 40 times, is equivalent to 1,080,000 yuan of reduction loss, consumption of stopping transport every time
Take artificial 3000 yuan or so.The program the there are the problem of be obtained for thorough solution, decrease this spending.The implementation
Example scheme increases generated energy up to 200kw/h per hour, annual to increase by 1640000 kw/h of generated energy, 820,000 yuan of increase income.
Although to the utility model, illustrative specific embodiment is described above, in order to the art
Technical staff is it will be appreciated that the utility model, but the utility model is not limited only to the range of specific embodiment, to this technology
For the those of ordinary skill in field, as long as long as the utility model that various change is limited and determined in appended claim
In spirit and scope, all are created using the utility model of the utility model design in the row of protection.
Claims (7)
1. a kind of boiler evaporator system, it is characterised in that：Including heating unit, economizer, except flue and inlet pipeline,
The heating unit includes one and forms circulation loop to Pyatyi evaporator, described one to Pyatyi evaporator, described to remove flue
It is made of gas inlet and exhanst gas outlet, gas inlet is set to the bottom of Pyatyi evaporator, and exhanst gas outlet is set to Pyatyi steaming
Send out the top of device；
The inlet pipeline is made of water inlet pipe, heating pipe, down-comer, tedge and steam output pipe, water inlet pipe and heating
Water pipe is connected to low temperature superheater and boiler drum, and down-comer and tedge are connected to high temperature superheater and boiler drum；
The economizer is installed on boiler back end ductwork lower part to absorb waste heat.
2. a kind of boiler evaporator system according to claim 1, it is characterised in that：The low temperature superheater outlet is supreme
Warm superheater is blocked by pipeline, in pipe ends mouth blank off.
3. a kind of boiler evaporator system according to claim 1, it is characterised in that：The low temperature superheater import is arranged side by side
Access the outlet header of boiler increase in pipeline.
4. a kind of boiler evaporator system according to claim 1, it is characterised in that：One secondary evaporimeter outlet collection
The valve for adjusting temperature is installed on the pipeline after case.
5. a kind of boiler evaporator system according to claim 1, it is characterised in that：The high temperature heater (HTH) is to releasing
The saturated vapor come through hot device outlet header enters steam turbine after being heated.
6. a kind of boiler evaporator system according to claim 1, it is characterised in that：It is described to remove entrance in flue
It is provided with denitrification apparatus.
7. a kind of boiler evaporator system according to claim 6, it is characterised in that：One is equipped with below the denitrification apparatus
Grade two level removes oxygen evaporator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721488233.6U CN207471512U (en) | 2017-11-09 | 2017-11-09 | A kind of boiler evaporator system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721488233.6U CN207471512U (en) | 2017-11-09 | 2017-11-09 | A kind of boiler evaporator system |
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| CN207471512U true CN207471512U (en) | 2018-06-08 |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110986015A (en) * | 2019-11-19 | 2020-04-10 | 深圳市凯盛科技工程有限公司 | Operation method of vertical waste heat boiler for glass melting furnace flue gas treatment |
| CN111174189A (en) * | 2019-08-26 | 2020-05-19 | 浙江卫星能源有限公司 | Process for efficient waste heat recovery and denitration combination of gas turbine tail gas |
| CN113063136A (en) * | 2021-03-24 | 2021-07-02 | 中广核工程有限公司 | Nuclear gas combined steam supply system |
-
2017
- 2017-11-09 CN CN201721488233.6U patent/CN207471512U/en active Active
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111174189A (en) * | 2019-08-26 | 2020-05-19 | 浙江卫星能源有限公司 | Process for efficient waste heat recovery and denitration combination of gas turbine tail gas |
| WO2021036099A1 (en) * | 2019-08-26 | 2021-03-04 | 浙江卫星能源有限公司 | Combined process for high-efficient waste heat recovery and denitration of exhaust gas of gas turbine |
| CN110986015A (en) * | 2019-11-19 | 2020-04-10 | 深圳市凯盛科技工程有限公司 | Operation method of vertical waste heat boiler for glass melting furnace flue gas treatment |
| CN113063136A (en) * | 2021-03-24 | 2021-07-02 | 中广核工程有限公司 | Nuclear gas combined steam supply system |
| CN113063136B (en) * | 2021-03-24 | 2022-11-18 | 中广核工程有限公司 | Nuclear gas combined steam supply system |
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