CN106096297B - A method of the measuring and calculating wind flow of incineration furnace grate bottom one time - Google Patents
A method of the measuring and calculating wind flow of incineration furnace grate bottom one time Download PDFInfo
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- CN106096297B CN106096297B CN201610448964.1A CN201610448964A CN106096297B CN 106096297 B CN106096297 B CN 106096297B CN 201610448964 A CN201610448964 A CN 201610448964A CN 106096297 B CN106096297 B CN 106096297B
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- incinerator
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- G—PHYSICS
- G16—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS
- G16Z—INFORMATION AND COMMUNICATION TECHNOLOGY [ICT] SPECIALLY ADAPTED FOR SPECIFIC APPLICATION FIELDS, NOT OTHERWISE PROVIDED FOR
- G16Z99/00—Subject matter not provided for in other main groups of this subclass
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Abstract
The present invention provides a kind of method for calculating the wind flow in incineration furnace grate bottom, comprising: the pressure difference of detection blower fan power and fan inlet and outlet；Fan delivery is obtained by the power of fan and the fan inlet and the pressure difference of outlet；Measuring and calculating value of the fan delivery as a wind flow under bid condition is obtained by the fan delivery.According to the present invention it is possible to solve the problems, such as that the wind flow of incineration furnace grate bottom one time can not be detected accurately in Refuse Incineration Process, facilitated control of the equipment operations staff to production, guaranteed the stability of Refuse Incineration Process.
Description
Technical field
The present invention relates to the burnings of the wastes such as rubbish, once distinguished and admirable in particular to a kind of measuring and calculating incineration furnace grate bottom
The method of amount.
Background technique
Domestic Refuse is significantly increased in China's economic development and urbanization process, and waste incineration and generating electricity is by rubbish
Rubbish is innoxious, minimizing, disposal of resources effective way, and incineration treatment of garbage can not only get environment protecting, while rubbish
The waste heat of burning can produce steam for generate electricity, heat supply, it is energy saving, be preferable resource recycling mode.
In the use process of domestic waste incineration row, feed fire grate effect is very crucial, and reliability directly affects
Entire incinerator even entirely burns the reliability of power plant, to affect at the house refuse of entire burning power plant
Reason ability and economic benefit.
Existing waste incineration mostly uses mechanical garbage incinerator, and waste incinerator shown in FIG. 1 is just therein one
Kind.As shown in Figure 1, the waste incinerator includes feed inlet 101, is fed fire grate 102, is used for waste incineration in burner hearth
Fire grate 103, positioned at burn fire grate lower part First air air feed system 104, positioned at furnace throat portion Secondary Air air feed system 105 with
And slag extractor 106.Siege of the fire grate overall structure for burning away the refuse is burned, the siege is divided into dryer section, burning along longitudinal direction
Section and after-flame section burn fire grate and are integrally divided into multiple burning units along longitudinal direction, usually 5 units, and each burning unit is by more
A sliding fire grate segment, travelling grate piece and fixed grate film composition.Rubbish pours into the waste incinerator from feed inlet, by giving
It is burned on the siege that rubbish described in the reciprocal impetus of material fire grate enters in the incinerator, described in the dryer section
Rubbish is oven-dried, is dehydrated, and the rubbish mainly burns in the burning zone, and the rubbish by after-flame section has burnt nearly
To the greatest extent, remaining clinker enters slag extractor later, is discharged out of the furnace by slag extractor.Wherein the First air is from the burning fire grate bottom
Air compartment be sent into, the Secondary Air from the furnace throat portion of the waste incinerator be sent into.
In the automatic control of waste incineration, the quality of the Combustion System of incinerator directly affects the operation conditions of incinerator
And steam production, and then influence environment protection emission index, the generated energy of generating set etc..Therefore, to rubbish in waste incinerator
The automatic control of burning is most important.In the automatic control of waste incineration, incineration furnace grate bottom First air flow detection is
An important component part in control system is directly related to burning wind in the distribution of each unit.Due to incineration furnace grate
The installation space of bottom is limited, and streams very seriously, using the detection such as conventional common differential pressure throttle device, thermal flowmeter
The error that equipment detects the wind flow in incineration furnace grate bottom is big, detects unstable.
It is, therefore, desirable to provide a kind of method, with solve in Refuse Incineration Process the wind flow of incineration furnace grate bottom one time without
The problem of method accurately detects.
Summary of the invention
In view of the deficiencies of the prior art, the present invention provides a kind of method for calculating the wind flow in incineration furnace grate bottom,
It is characterised by comprising:
The pressure difference of detection blower fan power and fan inlet and outlet；
Fan delivery is obtained by the power of fan and the fan inlet and the pressure difference of outlet；
Measuring and calculating value of the fan delivery as a wind flow under bid condition is obtained by the fan delivery.
In one example, the blower wind is obtained by the power of fan and the fan inlet and the pressure difference of outlet
The calculation formula of amount are as follows:
Wherein, Q1For fan delivery, unit m3/s；P is power of fan, unit K W；η1For fan efficiency, numberical range is
0.4-0.75；η2For blower transmission efficiency, numerical value 1.0；K is surplus coefficient, numerical value 1.1；H is fan inlet and outlet
Pressure difference.
In one example, the calculation formula of fan delivery under the mark condition is obtained by the fan delivery are as follows:
Wherein, Q2For fan delivery under mark condition, unit Nm3/h；Q1For fan delivery, unit m3/s；T is First air collector
Temperature, unit DEG C.
In one example, the incinerator includes fixed grate incinerator and moving grate incinerator.
According to the present invention it is possible to which solving the wind flow of incineration furnace grate bottom one time in Refuse Incineration Process can not accurately detect
The problem of, facilitate control of the equipment operations staff to production, guarantees the stability of Refuse Incineration Process.
Detailed description of the invention
Following drawings of the invention is incorporated herein as part of the present invention for the purpose of understanding the present invention.Shown in the drawings of this hair
Bright embodiment and its description, principle used to explain the present invention.
In attached drawing:
The structure chart of Fig. 1 waste incinerator in the prior art；
Fig. 2 is the flow chart calculated to the wind flow of incineration furnace grate bottom one time.
Specific embodiment
In the following description, a large amount of concrete details are given so as to provide a more thorough understanding of the present invention.So
And it is obvious to the skilled person that the present invention may not need one or more of these details and be able to
Implement.In other examples, in order to avoid confusion with the present invention, for some technical characteristics well known in the art not into
Row description.
In order to thoroughly understand the present invention, detailed method and step and/or structure will be proposed in following description.Obviously,
Execution of the invention is not limited to specific details appreciated by those skilled in the art.Presently preferred embodiments of the present invention is detailed
It is described as follows, however other than these detailed descriptions, the present invention can also have other embodiments.
It should be understood that the present invention can be implemented in different forms, and should not be construed as being limited to propose here
Embodiment.On the contrary, provide these embodiments will make it is open thoroughly and completely, and will fully convey the scope of the invention to
Those skilled in the art.In the accompanying drawings, for clarity, the size and relative size in the area Ceng He may be exaggerated.From beginning to end
Same reference numerals indicate identical element.
It should be understood that when the term " comprising " and/or " including " is used in this specification, indicating described in presence
Feature, entirety, step, operation, element and/or component, but do not preclude the presence or addition of other one or more features, entirety,
Step, operation, element, component and/or their combination." one " of singular, "one" and " described/should " be also intended to
Plural form, unless the context clearly indicates other mode.
In the automatic control of waste incineration, the quality of the Combustion System of incinerator directly affects the operation conditions of incinerator
And steam production, and then influence environment protection emission index, the generated energy of generating set etc..Therefore, to rubbish in waste incinerator
The automatic control of burning is most important.In the automatic control of waste incineration, incineration furnace grate bottom First air flow detection is
An important component part in control system is directly related to burning wind in the distribution of each unit.Due to incineration furnace grate
The installation space of bottom is limited, and streams very seriously, using the detection such as conventional common differential pressure throttle device, thermal flowmeter
The error that equipment detects the wind flow in incineration furnace grate bottom is big, detects unstable.
The wind flow of incineration furnace grate bottom one time is calculated in present invention proposition by blower inlet outlet pressure differential and power of fan
Method, to solve the problems, such as that the wind flow of incineration furnace grate bottom one time can not be detected accurately in Refuse Incineration Process.Fig. 1 is shown
The flow chart that the wind flow of incineration furnace grate bottom one time is calculated, primary air fan inlet outlet pressure differential and primary air fan power
It is easy to detect easy, accurately and reliably, the wind flow thus calculated facilitates control of the equipment operations staff to production,
Guarantee the stability of Refuse Incineration Process.
Fan delivery calculation formula shown in Fig. 1 are as follows:
Wherein, Q1For fan delivery, unit m3/s；P is power of fan, unit K W；η1For fan efficiency, numberical range is
0.4-0.75；η2For blower transmission efficiency, numerical value 1.0；K is surplus coefficient, numerical value 1.1；H is fan inlet and outlet
Pressure difference.
Equation of gaseous state shown in Fig. 1 are as follows:
Wherein, Q2For fan delivery under mark condition, unit Nm3/h；Q1For fan delivery, unit m3/s；T is First air collector
Temperature, unit DEG C.
It is proposed by the present invention that incineration furnace grate bottom is calculated by blower inlet outlet pressure differential and power of fan is once distinguished and admirable
The method of amount can be adapted for the occasion for being fitted without distinguished and admirable meter.Those skilled in the art could be aware that the present invention mentions
The method that the wind flow in incineration furnace grate bottom is calculated by blower inlet outlet pressure differential and power of fan out, can be applicable in
In various types of grate incinerators.
Grate incinerator is divided into fixed grate incinerator and moving grate incinerator, and fixed grate incinerator is less at present to be made
With moving grate incinerator mainly includes two kinds of mechanical grate incinerator of horizontal link chain mechanical grate incinerator and inclination, inclination
The type of mechanical grate incinerator mainly has rock type, step, reciprocating motion type, inclination crawler type, drum-type etc. side by side.Machine
Tool grate incinerator can substantially be divided into three sections: dryer section, burning zone and burning segment, each section of quantity and the speed of service can
To adjust.
The present invention has been explained by the above embodiments, but it is to be understood that, above-described embodiment is only intended to
The purpose of citing and explanation, is not intended to limit the invention to the scope of the described embodiments.Furthermore those skilled in the art
It is understood that the present invention is not limited to the above embodiments, introduction according to the present invention can also be made more kinds of member
Variants and modifications, all fall within the scope of the claimed invention for these variants and modifications.Protection scope of the present invention by
The appended claims and its equivalent scope are defined.
Claims (3)
1. a kind of method for calculating the wind flow in incineration furnace grate bottom characterized by comprising
The pressure difference of detection blower fan power and fan inlet and outlet；
Fan delivery is obtained by the power of fan and the fan inlet and the pressure difference of outlet；
Measuring and calculating value of the fan delivery as a wind flow under bid condition is obtained by the fan delivery,
The calculation formula of the fan delivery is obtained by the power of fan and the fan inlet and the pressure difference of outlet are as follows:
Wherein, Q1For fan delivery, unit m3/s；P is power of fan, unit K W；η1For fan efficiency；η2It is driven and imitates for blower
Rate；K is surplus coefficient；H is the pressure difference of fan inlet and outlet.
2. the method according to claim 1, wherein obtaining blower wind under the mark condition by the fan delivery
The calculation formula of amount are as follows:
Wherein, Q2For fan delivery under mark condition, unit Nm3/h；Q1For fan delivery, unit m3/s；T is First air manifold temperature,
Unit DEG C.
3. the method according to claim 1, wherein the incinerator includes fixed grate incinerator and travelling oven
Arrange incinerator.
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| CN201610448964.1A CN106096297B (en) | 2016-06-21 | 2016-06-21 | A method of the measuring and calculating wind flow of incineration furnace grate bottom one time |
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| CN201610448964.1A CN106096297B (en) | 2016-06-21 | 2016-06-21 | A method of the measuring and calculating wind flow of incineration furnace grate bottom one time |
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| CN106096297A CN106096297A (en) | 2016-11-09 |
| CN106096297B true CN106096297B (en) | 2019-03-26 |
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| WO2019119385A1 (en) * | 2017-12-21 | 2019-06-27 | 深圳市能源环保有限公司 | Control method for use in tilting multilevel forward-pushing waste incinerator |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566389A (en) * | 2015-01-16 | 2015-04-29 | 光大环保技术装备（常州）有限公司 | Low-nitrogen combustion type garbage incinerator and combustion method |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001227732A (en) * | 2000-02-15 | 2001-08-24 | Nkk Corp | Waste incinerator |
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Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104566389A (en) * | 2015-01-16 | 2015-04-29 | 光大环保技术装备（常州）有限公司 | Low-nitrogen combustion type garbage incinerator and combustion method |
Non-Patent Citations (3)
| Title |
|---|
| 出口轮毂形状对大型轴流风机性能影响的数值研究;尹超等;《航空动力学报》;20140531;第29卷(第5期);第1170-1176页：摘要，正文第3小节 |
| 垃圾炉一次风量对炉床燃烧影响的仿真研究;胡玉梅等;《环境工程学报》;20100331;第4卷(第3期);第671-676页 |
| 垃圾焚烧850℃/2s工程算法;朱亮等;《环境工程》;20151231;第33卷;第589-590页 |
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