CN209061366U - Coal pulverizer and its coal pulverizer hot air duct - Google Patents
Coal pulverizer and its coal pulverizer hot air duct Download PDFInfo
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- CN209061366U CN209061366U CN201821500266.2U CN201821500266U CN209061366U CN 209061366 U CN209061366 U CN 209061366U CN 201821500266 U CN201821500266 U CN 201821500266U CN 209061366 U CN209061366 U CN 209061366U
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- coal pulverizer
- air duct
- hot air
- pipeline body
- temperature
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Abstract
The utility model discloses a kind of coal pulverizer hot air ducts, including pipeline body, further include the cooling device for cooling down to the hot wind in pipeline body, and cooling device is connected to except pipeline body, and cooling device is connected with inlet tube and outlet tube.In the coal pulverizer hot air duct, pass through the setting of cooling device, hot wind in pipeline body can carry out heat exchange with the coolant liquid in cooling device, to realize the cooling to hot wind in pipeline body, the influence of the air quantity to the pipeline body of coal pulverizer can be reduced, the influence to boiler exhaust gas situation can be reduced while meeting requirement of explosion proof, guarantee the safe operation of coal pulverizer.The invention also discloses a kind of coal pulverizers including above-mentioned coal pulverizer hot air duct, and the influence to boiler exhaust gas situation can be reduced while meeting requirement of explosion proof.
Description
Technical field
The utility model relates to coal pulverizer technical field, in particular to a kind of coal pulverizer hot air duct.In addition, this is practical new
Type further relates to a kind of coal pulverizer including above-mentioned coal pulverizer hot air duct.
Background technique
Coal pulverizer is used for qualified coal dust is uniform and is adjustably sent into boiler, is the master of pulverized coal preparation system supply boiler oil
Want one of subsidiary engine.When the perforation of raw coal bucket wall built-up, hole capital after selling all securities occurs, need to reduce the hot blast temperature of coal pulverizer, to meet
The requirement of explosion proof of coal pulverizer guarantees safe operation.
Cold air duct is equipped in a kind of typical coal pulverizer to cool down.Coal pulverizer cool air hose caliber is smaller, and cooling capacity is not
Foot, when using bituminous coal, needs out the cold-air flap of big coal pulverizer and turns down the hot air disperser of coal pulverizer to cool down to hot wind.So
And will lead to the decline of air preheater exchange capability of heat after coal pulverizer cold blast rate increase, boiler exhaust gas situation is influenced, under unit economy
Drop.
Therefore, the influence to boiler exhaust gas situation how is reduced while meeting requirement of explosion proof, is the technology of this field
The current technical issues that need to address of personnel.
Utility model content
In view of this, the purpose of the utility model is to provide a kind of coal pulverizer hot air duct requirement of explosion proof can be being met
While reduce influence to boiler exhaust gas situation.It includes above-mentioned coal pulverizer heat that the another object of the utility model, which is to provide a kind of,
The coal pulverizer of air piping can reduce the influence to boiler exhaust gas situation while meeting requirement of explosion proof.
To achieve the above object, the utility model provides the following technical solutions:
A kind of coal pulverizer hot air duct, including pipeline body further include for carrying out to the hot wind in the pipeline body
The cooling device of cooling, the cooling device are connected to except the pipeline body, the cooling device be connected with inlet tube and
Outlet tube.
Preferably, the inlet tube and/or the outlet tube are equipped with the first control valve, and the pipeline body, which is equipped with, to be used
In the first temperature-detecting device for detecting the gas temperature in the pipeline body.
Preferably, first temperature-detecting device, first control valve are connected separately main controller, the master control
Device can control the opening and closing of first control valve according to the detected value of first temperature-detecting device.
Preferably, the inlet tube and/or the outlet tube are equipped with the second temperature for detecting the temperature of coolant liquid
Detection device, the second temperature detection device are equipped with display.
Preferably, the second temperature detection device is connected with the report for alarming when temperature reaches preset temperature
Alert device.
Preferably, the alarm is indicator light or buzzer.
A kind of coal pulverizer, the coal pulverizer hot air pipe including coal pulverizer ontology He the hot-air mouth for being connected to the coal pulverizer ontology
Road, the coal pulverizer hot air duct are the coal pulverizer hot air duct as described in above-mentioned any one.
Preferably, the import of the inlet tube in the coal pulverizer hot air duct is connected to the condensate system of the coal pulverizer
In, and the outlet of the outlet tube in the coal pulverizer hot air duct is connected in the condensate system.
Preferably, further include the water tank that the inlet tube is connected to by water pump, the water pump and the inlet tube it
Between connecting line be equipped with the second control valve.
It preferably, further include cold air duct, the outlet of the cold air duct is connected to the pipe of the coal pulverizer hot air duct
On road ontology, and hot wind can be followed by the cooling device, the cold air duct and the pipeline in the pipeline body
The tie point of ontology.
Coal pulverizer hot air duct provided by the utility model include pipeline body and for the hot wind in pipeline body into
The cooling device of row cooling, cooling device are connected to except pipeline body, and cooling device is connected with inlet tube and outlet tube.
In the coal pulverizer hot air duct, by the setting of cooling device, the hot wind in pipeline body can be with cooling device
In coolant liquid carry out heat exchange, to realize cooling to hot wind in pipeline body, the pipeline sheet to coal pulverizer can be reduced
The influence of the air quantity of body can reduce the influence to boiler exhaust gas situation while meeting requirement of explosion proof, guarantee coal pulverizer
Safe operation.Simultaneously as the ventilation quantity of pipeline body is not influenced substantially by cooling demand, the wind of line clogging can be reduced
Danger.
Coal pulverizer provided by the utility model including above-mentioned coal pulverizer hot air duct, can meet the same of requirement of explosion proof
When reduce influence to boiler exhaust gas situation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 provides the structural schematic diagram of coal pulverizer hot air duct by the utility model；
Fig. 2 provides the structural schematic diagram of coal pulverizer by the utility model.
In Fig. 1 and Fig. 2,1- pipeline body, 2- inlet tube, 3- outlet tube, 4- cooling device, the first control valve of 5-, 6- heat
First air wind regime, the cold First air wind regime of 7-, 8- coal pulverizer ontology, 9- separator, 10- ball adding device.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The core of the utility model is to provide a kind of coal pulverizer hot air duct, being capable of reduction while meeting requirement of explosion proof
Influence to boiler exhaust gas situation.Another core of the utility model is to provide a kind of mill including above-mentioned coal pulverizer hot air duct
Coal machine can reduce the influence to boiler exhaust gas situation while meeting requirement of explosion proof.
In a kind of specific embodiment of the provided coal pulverizer hot air duct of the utility model, referring to FIG. 1, including pipeline sheet
Body 1, the cooling device 4 for cooling down to the hot wind in pipeline body 1, cooling device 4 are connected to except pipeline body 1,
And the cooling device 4 is connected with inlet tube 2 and outlet tube 3.Coolant liquid can be provided into cooling device 4 by inlet tube 2, and
After 4 cooling pipe ontology 1 of cooling device, coolant liquid can be flowed out from outlet tube 3.Wherein, cooling device 4 can be according to reality
The cooler of type and model needed for situation selects.
In the present embodiment, by the setting of cooling device 4, hot wind in pipeline body 1 can with it is cold in cooling device 4
But liquid carries out heat exchange, to realize the cooling to hot wind in pipeline body 1, can reduce to the pipeline body 1 of coal pulverizer
The influence of air quantity can reduce the influence to boiler exhaust gas situation while meeting requirement of explosion proof, guarantee the safety of coal pulverizer
Operation.
Further, it can be equipped with the first control valve 5 on inlet tube 2 and/or outlet tube 3, can be equipped on pipeline body 1
For detecting the first temperature-detecting device of the gas temperature in pipeline body 1.Wherein, the first temperature-detecting device specifically can be with
For temperature-detecting devices such as thermometer, temperature sensors.In the present embodiment, staff can be according to the first temperature-detecting device
Testing result control cooling device 4 in whether be passed through cooling medium and cooled down.
Further, the first temperature-detecting device, the first control valve 5 can be connected separately in main controller, main controller
The opening and closing of the first control valve 5 can be controlled according to the detected value of the first temperature-detecting device.Wherein, the first control valve 5 specifically may be used
Think the valves such as solenoid valve, motor-driven valve.In the present embodiment, by the way that the first temperature-detecting device, the first control valve 5 are connected to master
It controls in device, the automatic control opened and closed to the first control valve 5 may be implemented, can be improved the degree of automation of cooling procedure.Specifically
Ground, the main controller can be set in the control system of coal pulverizer, access the DCS of coal pulverizer, by control cable to control.
It further, can be equipped with the second temperature for detecting the temperature of coolant liquid on inlet tube 2 and/or outlet tube 3
Display has can be set in second temperature detection device in detection device, so as to so that staff understands cooling dress in time
The hot blast temperature whether coolant temperature in 4 is lower than in pipeline body 1 is set, to guarantee that cooling device 4 can be realized cooling function
Energy.Wherein, second temperature detection device is specifically as follows thermometer.
Further, second temperature detection device can connect alarm, which can reach default in temperature
It alarms when temperature.If the coolant temperature in cooling device 4 is higher, cooling effect can be poor, which is
Can correspondence can guarantee a temperature value of cooling effect, alarmed upon reaching that temperature by alarm, to prompt work
It is performed corresponding processing as personnel.
Further, which can be indicator light or buzzer, to reduce cost.
In addition to above-mentioned coal pulverizer hot air duct, the utility model additionally provides coal pulverizer.The coal pulverizer includes coal pulverizer sheet
The coal pulverizer hot air duct of body 8 and the hot-air mouth for being connected to the coal pulverizer ontology 8, the coal pulverizer hot air duct are specifically as follows
State the coal pulverizer hot air duct in any embodiment.The coal pulverizer can be reduced due to using above-mentioned coal pulverizer hot air duct
Influence to the air quantity of the pipeline body 1 of coal pulverizer can reduce while meeting requirement of explosion proof to boiler exhaust gas situation
It influences, guarantees the safe operation of coal pulverizer, improve unit cycle efficieny.It can also include specifically separator 9 in the coal pulverizer, add
The components such as ball device 10 can specifically refer to the prior art, and repeats no more herein.
Further, the import of the inlet tube 2 in coal pulverizer hot air duct can connect the condensate system in coal pulverizer
In, and the outlet of the outlet tube 3 in coal pulverizer hot air duct can connect in condensate system.That is, cold in cooling device 4
But medium sources are applied again in condensate system and being returned in condensate system after implementing refrigerating function, directly benefit
The water in condensate system has been used as cooling working medium and it has been recycled, the waste to water resource can be reduced.
Further, can also include the water tank that inlet tube 2 is connected to by water pump in the coal pulverizer, the water pump with into
Connecting line between liquid pipe 2 is equipped with the second control valve.Specifically, which can be shut-off valve.The present embodiment
In, it can also be that cooling device 4 supplies water by water tank, when the water that condensate system provides other than condensate system
Occur on the pipeline that the higher cooling for being unable to satisfy cooling device 4 of water temperature requires or condensate system is connected with inlet tube 2
When the failures such as blocking, it directly can be that cooling device 4 provides cooling water by the water tank, can be improved the reliability of cooling.
Based on any of the above embodiments, which can also include cold air duct, the outlet of the cold air duct
It is connected on the pipeline body 1 of coal pulverizer hot air duct, and hot wind can be followed by cooling device 4, cold wind in pipeline body 1
The tie point of pipeline and pipeline body 1.Heat primary air wind regime 6 provides hot wind to pipeline body, and cold First air wind regime 7 is to cool air hose
Road provides cold wind.In the present embodiment, can mainly it be cooled down by the coolant liquid in cooling device 4 to hot air duct, further according to
The on-off of the cooling result selection cold air duct of cooling device 4, can reduce influence of the cold air duct to air quantity.
Further, self-test updating device can be equipped in the control system of coal pulverizer and signal is connected to self-test more new clothes
The display device for the output end set；It is short-circuit, breaking, close whether self-test updating device occurs in the route for detecting coal pulverizer
Switching damage, module point scaling loss situation, and will test result and export to display device.In the present embodiment, by being set in logic
Self-test update is set, can prevent from making due to line short, open circuit, close to the wrong report of signal caused by switching damage, module point scaling loss
It makes mistakes at the adjusting of program.Wherein, display device is specifically as follows the display of operation computer, in order to which operations staff's observation is sentenced
It is disconnected.In addition, routine test system can be formulated to coal pulverizer, logic monthly or is repeatedly carried out according to equipment frequency of usage and is sentenced
Disconnected test, to prevent coal pulverizer inlet hot blast temperature from adjusting failure.
Each embodiment in this specification is described in a progressive manner, the highlights of each of the examples are with other
The difference of embodiment, the same or similar parts in each embodiment may refer to each other.
Coal pulverizer provided to the utility model and its coal pulverizer hot air duct are described in detail above.Herein
Specific case is applied to be expounded the principles of the present invention and embodiment, the explanation of above example is only intended to
Help understands the method and its core concept of the utility model.It should be pointed out that coming for those skilled in the art
It says, without departing from the principle of this utility model, several improvements and modifications can be made to this utility model, these change
Into in the protection scope for also falling into the utility model claims with modification.
Claims (10)
1. a kind of coal pulverizer hot air duct, including pipeline body (1), which is characterized in that further include for the pipeline body
(1) cooling device (4) that the hot wind in cools down, the cooling device (4) are connected to except the pipeline body (1), institute
It states cooling device (4) and is connected with inlet tube (2) and outlet tube (3).
2. coal pulverizer hot air duct according to claim 1, which is characterized in that the inlet tube (2) and/or the liquid out
It manages (3) and is equipped with the first control valve (5), the pipeline body (1) is equipped with for detecting the gas in the pipeline body (1)
First temperature-detecting device of temperature.
3. coal pulverizer hot air duct according to claim 2, which is characterized in that first temperature-detecting device, described
First control valve (5) is connected separately main controller, and the main controller can be according to the detection of first temperature-detecting device
Value controls the opening and closing of first control valve (5).
4. coal pulverizer hot air duct according to claim 3, which is characterized in that the inlet tube (2) and/or the liquid out
(3) are managed equipped with the second temperature detection device for detecting the temperature of coolant liquid, the second temperature detection device is equipped with
Display.
5. coal pulverizer hot air duct according to claim 4, which is characterized in that the second temperature detection device is connected with
Alarm for alarming when temperature reaches preset temperature.
6. coal pulverizer hot air duct according to claim 5, which is characterized in that the alarm is indicator light or buzzing
Device.
7. a kind of coal pulverizer, including the coal pulverizer of coal pulverizer ontology (8) and the hot-air mouth for being connected to the coal pulverizer ontology (8) heat
Air piping, which is characterized in that the coal pulverizer hot air duct is coal pulverizer hot air pipe described in claim 1 to 6 any one
Road.
8. coal pulverizer according to claim 7, which is characterized in that inlet tube (2) in the coal pulverizer hot air duct
Import is connected in the condensate system of the coal pulverizer, and the outlet of the outlet tube (3) in the coal pulverizer hot air duct connects
It is connected in the condensate system.
9. coal pulverizer according to claim 7, which is characterized in that further include being connected to the inlet tube (2) by water pump
Water tank, connecting line between the water pump and the inlet tube (2) is equipped with the second control valve.
10. coal pulverizer according to claim 7, which is characterized in that it further include cold air duct, the outlet of the cold air duct
It is connected on the pipeline body (1) of the coal pulverizer hot air duct, and hot wind can be followed by institute in the pipeline body (1)
State the tie point of cooling device (4), the cold air duct and the pipeline body (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500266.2U CN209061366U (en) | 2018-09-13 | 2018-09-13 | Coal pulverizer and its coal pulverizer hot air duct |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821500266.2U CN209061366U (en) | 2018-09-13 | 2018-09-13 | Coal pulverizer and its coal pulverizer hot air duct |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209061366U true CN209061366U (en) | 2019-07-05 |
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ID=67092345
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821500266.2U Active CN209061366U (en) | 2018-09-13 | 2018-09-13 | Coal pulverizer and its coal pulverizer hot air duct |
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| Country | Link |
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| CN (1) | CN209061366U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127104A (en) * | 2018-09-13 | 2019-01-04 | 华润电力湖南有限公司 | Coal pulverizer and its coal pulverizer hot air duct |
-
2018
- 2018-09-13 CN CN201821500266.2U patent/CN209061366U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109127104A (en) * | 2018-09-13 | 2019-01-04 | 华润电力湖南有限公司 | Coal pulverizer and its coal pulverizer hot air duct |
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