CN207162573U - Flue gas recirculation pipe with cool-down dehumidification function - Google Patents
Flue gas recirculation pipe with cool-down dehumidification function Download PDFInfo
- Publication number
- CN207162573U CN207162573U CN201721104553.7U CN201721104553U CN207162573U CN 207162573 U CN207162573 U CN 207162573U CN 201721104553 U CN201721104553 U CN 201721104553U CN 207162573 U CN207162573 U CN 207162573U
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- Prior art keywords
- pipeline section
- flue gas
- section
- pipe
- cool
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- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 55
- 239000003546 flue gas Substances 0.000 title claims abstract description 55
- 238000007791 dehumidification Methods 0.000 title claims abstract description 14
- 238000005259 measurement Methods 0.000 claims abstract description 13
- 239000010865 sewage Substances 0.000 claims abstract description 8
- 239000000779 smoke Substances 0.000 claims description 5
- 239000007789 gas Substances 0.000 claims description 3
- 229910001220 stainless steel Inorganic materials 0.000 claims description 3
- 239000010935 stainless steel Substances 0.000 claims description 3
- 235000019504 cigarettes Nutrition 0.000 claims description 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 13
- 238000009833 condensation Methods 0.000 abstract description 12
- 230000005494 condensation Effects 0.000 abstract description 12
- 239000003245 coal Substances 0.000 abstract description 7
- 238000002360 preparation method Methods 0.000 abstract description 6
- 238000005260 corrosion Methods 0.000 abstract description 5
- 230000007797 corrosion Effects 0.000 abstract description 5
- 239000003643 water by type Substances 0.000 abstract description 3
- 239000002817 coal dust Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- 238000000227 grinding Methods 0.000 description 3
- 238000001035 drying Methods 0.000 description 2
- 230000002708 enhancing effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000001816 cooling Methods 0.000 description 1
- 230000018044 dehydration Effects 0.000 description 1
- 238000006297 dehydration reaction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000000605 extraction Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 238000010992 reflux Methods 0.000 description 1
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- Drying Of Gases (AREA)
Abstract
The utility model discloses a kind of flue gas recirculation pipe with cool-down dehumidification function, including：Flue gas inputs pipeline section, flue gas exit pipe section, and U-tube section；U-tube section includes：Top is vertically arranged the first pipeline section with what flue gas input pipeline section was connected, and what top was connected with flue gas exit pipe section is vertically arranged the 3rd pipeline section, and both ends connect the pipeline section of horizontal second of the first pipeline section bottom and the 3rd pipeline section bottom respectively；The external cold air input pipe in top of first pipeline section；The bottom of second pipeline section is provided with sewage draining exit, and the sewage draining exit controls opening and closing by the automatic drain valve located at the second inner tube segment；The top of 3rd pipeline section is provided with demister and humidity measurement instrument.Flue gas recirculation pipe of the utility model with cool-down dehumidification function, it can actively introduce cold air, accelerate the water vapor condensation in flue gas, and demister and humidity measurement instrument are set in rear end, ensure that most condensed waters in flue gas recirculation pipe are collected discharge, so as to avoid condensed water corrosion pipeline, the operation of pulverized coal preparation system is endangered.
Description
Technical field
It the utility model is related to the flue gas recirculation pipe with cool-down dehumidification function.
Background technology
Pulverized coal preparation system is that raw coal is input into the coal dust that certain particle size is made in grinding machine, and grinding machine in use must be
Hot-air is inputted while coal-grinding to dry coal dust.Hot-air is typically derived from hot-blast stove, and its circulatory system is that air passes through wind
After machine is sent into the burning of hot blast stove heat, caused flue gas is sent into the mill dries coal dust, is then sent to and follows by air-introduced machine part
Endless tube road and the mixed wind post for entering furnace outlet, with newly high-temperature flue gas hybrid cooling caused by burning to process requirements temperature, then
Into the mill dries coal dust and repeat this process.
Flue-gas temperature behind the outlet of hot-blast stove air-introduced machine is relatively low, during reflux cycle, the vapor meeting in flue gas
Gradual condensation draining and corrosive cycle pipeline, eventually affect the normal operation of whole pulverized coal preparation system.And existing flue gas recirculation
Pipeline does not set corresponding safeguard measure, and there is great potential safety hazard.
Utility model content
The purpose of this utility model is to provide a kind of flue gas recirculation pipe with cool-down dehumidification function, and it can actively introduce cold
Air, accelerate the water vapor condensation in flue gas, and demister and humidity measurement instrument are set in rear end, ensure in flue gas recirculation pipe
Most condensed waters are collected discharge, so as to avoid condensed water corrosion pipeline, endanger the operation of pulverized coal preparation system.
To achieve the above object, the technical solution of the utility model is a kind of flue gas recirculation with cool-down dehumidification function of design
Pipe, including：Tilting flue gas input pipeline section, the flue gas exit pipe section of horizontal, and it is serially connected with flue gas input pipeline section and flue gas is defeated
Go out between pipeline section and be vertically arranged U-tube section；
The U-tube section includes：Top is vertically arranged the first pipeline section with what flue gas input pipeline section bottom was connected, and top is defeated with flue gas
Go out pipeline section connection is vertically arranged the 3rd pipeline section, and both ends connect the horizontal second of the first pipeline section bottom and the 3rd pipeline section bottom respectively
Pipeline section；
The external cold air input pipe in top of first pipeline section, cold air input pipe are provided with air dryer and electronic
Regulating valve；The middle and lower part of first pipeline section is provided with equal device of air；
The bottom of second pipeline section is provided with sewage draining exit, and the sewage draining exit is by the automatic drain valve control located at the second inner tube segment
System opening and closing；
The top of 3rd pipeline section is provided with demister and humidity measurement instrument, and humidity measurement instrument is located above demister.
Preferably, la farr pipe structure is provided with first pipeline section, the la farr pipe structure is located at cold air input pipe
With the joint portion of the first pipeline section.
Preferably, above-mentioned each pipeline section is all stainless steel pipeline section.
Preferably, the electric control valve links with smoke moisture detector.
The advantages of the utility model and beneficial effect are：A kind of flue gas recirculation pipe with cool-down dehumidification function is provided, its
Cold air can be actively introduced, accelerates the water vapor condensation in flue gas, and demister and humidity measurement instrument are set in rear end, ensures cigarette
Most condensed waters in gas circulation pipe are collected discharge, so as to avoid condensed water corrosion pipeline, endanger the fortune of pulverized coal preparation system
OK.
Flue gas enters the first pipeline section by flue gas input pipeline section, the external cold air input pipe of the first pipeline section, can use daraf(reciprocal of farad)
The cold air of your tubular construction suction drying, flue gas is cooled rapidly and condensation draining, the water being condensed out are collected in the second pipeline section,
Second pipeline section sets automatic drain valve, the Auto-drainage when liquid level reach a certain height.Be provided with 3rd pipeline section demister and
Humidity measurement instrument, to ensure the humidity of circulating flue gas in low spot, will not in subsequent pipeline condensation draining again.Can be by cold sky
Electric control valve on gas input pipe is arranged to link with smoke moisture detector, if humidity is higher, electric control valve is opened greatly,
Cold air inlet increases, and condensation effect enhancing, dehumidifying is strengthened, on the contrary then turn down electric control valve.
The utility model has following features：
1st, apparatus structure is simple, can be achieved to automatically control, without manual intervention.
2nd, circulation line humidity can be monitored, and can be adjusted in real time.
3rd, using la farr pipe structure nature absorption dehydration air, without power set, effect on moisture extraction is good, effectively prevent
The corrosion of pipeline condensed water.
Brief description of the drawings
Fig. 1 is schematic diagram of the present utility model.
Embodiment
With reference to the accompanying drawings and examples, specific embodiment of the present utility model is further described.Implement below
Example is only used for clearly illustrating the technical solution of the utility model, and can not limit protection model of the present utility model with this
Enclose.
The utility model specific implementation technical scheme be：
As shown in figure 1, a kind of flue gas recirculation pipe with cool-down dehumidification function, including：Tilting flue gas input pipeline section 1, puts down
The flue gas exit pipe section 5 put, and be serially connected between flue gas input pipeline section 1 and flue gas exit pipe section 5 and be vertically arranged U-tube section；
The U-tube section includes：Top is vertically arranged the first pipeline section 2, top and flue gas with what flue gas input pipeline section 1 bottom was connected
What output pipeline section 5 connected is vertically arranged the 3rd pipeline section 4, and both ends connect the flat of the bottom of the first pipeline section 2 and the bottom of the 3rd pipeline section 4 respectively
Put the second pipeline section 3；
The external cold air input pipe 6 in top of first pipeline section 2, cold air input pipe 6 are provided with air dryer 61
With electric control valve 62；The middle and lower part of first pipeline section 2 is provided with equal device of air 21；
The bottom of second pipeline section 3 is provided with sewage draining exit 31, and the sewage draining exit 31 is by the automatic row inside the second pipeline section 3
The control opening and closing of water valve 32；
The top of 3rd pipeline section 4 is provided with demister 41 and humidity measurement instrument 42, and humidity measurement instrument 42 is located at demister
41 tops.
Be provided with la farr pipe structure 22 in first pipeline section 2, the la farr pipe structure 22 be located at cold air input pipe 6 and
The joint portion of first pipeline section 2.
Above-mentioned each pipeline section is all stainless steel pipeline section.
The electric control valve 62 links with smoke moisture detector 42.
Flue gas recirculation pipe of the utility model with cool-down dehumidification function, it can actively introduce cold air, accelerate in flue gas
Water vapor condensation, and demister 41 and humidity measurement instrument 42 are set in rear end, ensure the overwhelming majority condensation in flue gas recirculation pipe
Water is collected discharge, so as to avoid condensed water corrosion pipeline, endangers the operation of pulverized coal preparation system.
Flue gas enters the first pipeline section 2 by flue gas input pipeline section 1,2 external cold air input pipe 6 of the first pipeline section, can use
La farr pipe structure 22 sucks the cold air of drying, and flue gas is cooled rapidly and condensation draining, the water being condensed out are collected to second
In pipeline section 3, the second pipeline section 3 sets automatic drain valve 32, the Auto-drainage when liquid level reach a certain height.Set on 3rd pipeline section 4
Demister 41 and humidity measurement instrument 42 are equipped with, to ensure that the humidity of circulating flue gas, will not be in subsequent pipeline again in low spot
Condensation draining.Electric control valve 62 on cold air input pipe 6 can be arranged to link with smoke moisture detector 42, if humidity
Higher, then electric control valve 62 is opened greatly, and the increase of cold air inlet, condensation effect enhancing, dehumidifying is strengthened, on the contrary then turn down electronic
Regulating valve 62.
Described above is only preferred embodiment of the present utility model, it is noted that for the common skill of the art
For art personnel, on the premise of the utility model technical principle is not departed from, some improvements and modifications can also be made, these change
Enter and retouch and also should be regarded as the scope of protection of the utility model.
Claims (4)
1. the flue gas recirculation pipe with cool-down dehumidification function, it is characterised in that including：Tilting flue gas input pipeline section, the cigarette of horizontal
Gas exports pipeline section, and is serially connected between flue gas input pipeline section and flue gas exit pipe section and is vertically arranged U-tube section；
The U-tube section includes：Top is vertically arranged the first pipeline section, top and flue gas exit pipe with what flue gas input pipeline section bottom was connected
Section connection is vertically arranged the 3rd pipeline section, and both ends connect the first pipeline section bottom respectively and the horizontal second of the 3rd pipeline section bottom is managed
Section；
The external cold air input pipe in top of first pipeline section, cold air input pipe are provided with air dryer and motorized adjustment
Valve；The middle and lower part of first pipeline section is provided with equal device of air；
The bottom of second pipeline section is provided with sewage draining exit, and the sewage draining exit is opened by the automatic drain valve control located at the second inner tube segment
Close；
The top of 3rd pipeline section is provided with demister and humidity measurement instrument, and humidity measurement instrument is located above demister.
2. the flue gas recirculation pipe according to claim 1 with cool-down dehumidification function, it is characterised in that in first pipeline section
Provided with la farr pipe structure, the la farr pipe structure is located at the joint portion of cold air input pipe and the first pipeline section.
3. the flue gas recirculation pipe according to claim 2 with cool-down dehumidification function, it is characterised in that above-mentioned each pipeline section is all
Stainless steel pipeline section.
4. the flue gas recirculation pipe according to claim 3 with cool-down dehumidification function, it is characterised in that the electric control valve
Linked with smoke moisture detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104553.7U CN207162573U (en) | 2017-08-31 | 2017-08-31 | Flue gas recirculation pipe with cool-down dehumidification function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721104553.7U CN207162573U (en) | 2017-08-31 | 2017-08-31 | Flue gas recirculation pipe with cool-down dehumidification function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207162573U true CN207162573U (en) | 2018-03-30 |
Family
ID=61719037
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721104553.7U Expired - Fee Related CN207162573U (en) | 2017-08-31 | 2017-08-31 | Flue gas recirculation pipe with cool-down dehumidification function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207162573U (en) |
-
2017
- 2017-08-31 CN CN201721104553.7U patent/CN207162573U/en not_active Expired - Fee Related
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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: 20180330 |