CN208012160U - System for condensing, dehumidifying and reheating flue gas by using compression heat pump - Google Patents
System for condensing, dehumidifying and reheating flue gas by using compression heat pump Download PDFInfo
- Publication number
- CN208012160U CN208012160U CN201820454620.6U CN201820454620U CN208012160U CN 208012160 U CN208012160 U CN 208012160U CN 201820454620 U CN201820454620 U CN 201820454620U CN 208012160 U CN208012160 U CN 208012160U
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- CN
- China
- Prior art keywords
- heat
- heat pump
- flue gas
- evaporator
- heater
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Links
- UGFAIRIUMAVXCW-UHFFFAOYSA-N Carbon monoxide Chemical compound [O+]#[C-] UGFAIRIUMAVXCW-UHFFFAOYSA-N 0.000 title claims abstract description 68
- 239000003546 flue gas Substances 0.000 title claims abstract description 67
- 230000006835 compression Effects 0.000 title claims abstract description 13
- 238000007906 compression Methods 0.000 title claims abstract description 13
- 238000003303 reheating Methods 0.000 title abstract 2
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 claims abstract description 52
- 238000010521 absorption reaction Methods 0.000 claims abstract description 26
- 238000006477 desulfuration reaction Methods 0.000 claims abstract description 14
- 230000005494 condensation Effects 0.000 claims description 11
- 238000009833 condensation Methods 0.000 claims description 11
- 235000019504 cigarettes Nutrition 0.000 claims description 7
- 230000023556 desulfurization Effects 0.000 abstract description 4
- 239000002245 particle Substances 0.000 abstract description 2
- 239000000779 smoke Substances 0.000 abstract 1
- QAOWNCQODCNURD-UHFFFAOYSA-N Sulfuric acid Chemical compound OS(O)(=O)=O QAOWNCQODCNURD-UHFFFAOYSA-N 0.000 description 8
- 238000010438 heat treatment Methods 0.000 description 7
- 239000013618 particulate matter Substances 0.000 description 5
- 239000003595 mist Substances 0.000 description 4
- 239000005416 organic matter Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 238000007791 dehumidification Methods 0.000 description 1
- 230000003009 desulfurizing effect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000004134 energy conservation Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 239000002737 fuel gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 238000004064 recycling Methods 0.000 description 1
- 238000005057 refrigeration Methods 0.000 description 1
- -1 soluble-salt Chemical compound 0.000 description 1
- 239000002699 waste material Substances 0.000 description 1
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- Treating Waste Gases (AREA)
Abstract
The utility model discloses a system for condensing, dehumidifying and reheating flue gas by using a compression heat pump, wherein the outlet of a desulfurization absorption tower is communicated with the heat release side inlet of a heat pump evaporator, the heat release side outlet of the heat pump evaporator is communicated with the heat absorption side inlet of a heat pump flue gas heater, the heat absorption side outlet of the heat pump flue gas heater is communicated with the inlet of a chimney, the heat absorption side outlet of the heat pump evaporator is communicated with the heat release side inlet of a heat supply network water heater through a heat pump compressor, the heat release side outlet of the heat supply network water heater is communicated with the heat release side inlet of the heat pump flue gas heater, the heat release side outlet of the heat pump flue gas heater is communicated with the heat absorption side inlet of the, the system can recover heat in the flue gas output by the desulfurization absorption tower, and can reduce the amount of condensable particles in the flue gas discharged by the chimney, thereby avoiding the phenomenon of white smoke emission and the phenomenon of chimney rain.
Description
Technical field
The utility model belongs to energy conservation and environmental protection field, is related to a kind of flue gas condensing dehumidifying temperature elevation system again, and in particular to one
Kind carries out flue gas condensing dehumidifying temperature elevation system again using compression heat pump.
Background technology
Wet fuel gas desulfurizing technology is used in flue gas desulfurization field, current 90% or more, the saturation wet flue gas after desulfurization is logical
Wet chimney is crossed to be discharged.Flue gas in chimney is in saturation state, and temperature is generally 40 DEG C -55 DEG C, the saturated flue gas of discharge
By the lower air quick refrigeration of temperature, vapor is condensed into liquid in flue gas, and flue gas transmitted light rate declines, to cause chimney
White cigarette phenomenon and chimney rain phenomenon are emitted, while containing a large amount of soluble-salt, sulfuric acid mist and organic matter etc. in the flue gas being discharged
Condensable particulate matter, and cause the waste of heat.
Utility model content
The shortcomings that the purpose of the utility model is to overcome the above-mentioned prior arts, provide it is a kind of using compression heat pump into
Row flue gas condensing dehumidifying temperature elevation system again, which can recycle the heat in desulfuration absorbing tower output flue gas, while reduce cigarette
The amount of condensable particulate matter in flue gas is discharged in chimney, avoids the occurrence of chimney and emits white cigarette phenomenon and chimney rain phenomenon.
In order to achieve the above objectives, described in the utility model heated up again using compression heat pump progress flue gas condensing dehumidifying is
System includes that hot net water input channel, hot net water output channel, desulfuration absorbing tower, evaporator with heat pump, heat pump compressor, hot net water add
Hot device, heat pump flue gas heater and chimney；
The outlet of desulfuration absorbing tower is connected with the heat release side entrance of evaporator with heat pump, the heat release side outlet of evaporator with heat pump
It is connected with the heat absorption side entrance of heat pump flue gas heater, the heat absorption side outlet of heat pump flue gas heater is connected with the entrance of chimney
Logical, the heat absorption side outlet of evaporator with heat pump is connected through heat pump compressor with the heat release side entrance of heat supply network water heater, hot net water
The heat release side outlet of heater is connected with the heat release side entrance of heat pump flue gas heater, and the cold side of heat pump flue gas heater goes out
Mouth is connected with the heat absorption side entrance of evaporator with heat pump, and hot net water input channel is connected with the heat absorption side entrance of heat supply network water heater
Logical, hot net water output channel is connected with the heat absorption side outlet of heat supply network water heater.
The heat release side outlet of heat pump flue gas heater is connected through throttling of heat pump valve with the heat absorption side entrance of evaporator with heat pump.
Condensation water collecting device is provided in evaporator with heat pump.
Further include condensed water treating device, wherein condensed water treating device is connected with the outlet of condensation water collecting device.
The utility model has the advantages that：
It is described in the utility model using compression heat pump carry out flue gas condensing dehumidifying again temperature elevation system when specific operation,
The wet flue gas of desulfuration absorbing tower output cools down through evaporator with heat pump, to reduce the saturation temperature of flue gas, to make in flue gas
The condensables particulate matter such as steam, soluble-salt, sulfuric acid mist and organic matter condensed, then pass through heat pump flue gas heater again
Be discharged through chimney after heating, to reduce discharge flue gas in condensable particulate matter amount, avoid the occurrence of chimney emit white cigarette phenomenon with
And chimney rain phenomenon.In addition, the utility model uses the tow taste heat in heat pump techniques recovered flue gas, specifically, hot net water
The working medium of heater output is compressed through the heat release of heat pump flue gas heater, the throttling of throttling of heat pump valve, evaporator with heat pump heat absorption and heat pump
It enters in heat supply network water heater after machine compression, to realize the recycling of flue gas middle-low grade heat, while realizing to hot net water
Heating, while energy saving improve unit efficiency and heat capacity, simple in structure, easy to operate, practicability is extremely strong.
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, 1 be desulfuration absorbing tower, 2 be evaporator with heat pump, 3 be heat pump compressor, 4 be heat supply network water heater, 5 be heat
Pump flue gas heater, 6 be throttling of heat pump valve, 7 be chimney.
Specific implementation mode
The utility model is described in further detail below in conjunction with the accompanying drawings：
With reference to figure 1, described in the utility model using the dehumidifying of compression heat pump progress flue gas condensing, temperature elevation system includes again
Hot net water input channel, hot net water output channel, desulfuration absorbing tower 1, evaporator with heat pump 2, heat pump compressor 3, hot net water heating
Device 4, heat pump flue gas heater 5 and chimney 7；The outlet of desulfuration absorbing tower 1 is connected with the heat release side entrance of evaporator with heat pump 2,
The heat release side outlet of evaporator with heat pump 2 is connected with the heat absorption side entrance of heat pump flue gas heater 5, heat pump flue gas heater 5
Heat absorption side outlet is connected with the entrance of chimney 7, and the heat absorption side outlet of evaporator with heat pump 2 adds through heat pump compressor 3 with hot net water
The heat release side entrance of hot device 4 is connected, and the heat release side outlet and the cold side of heat pump flue gas heater 5 of heat supply network water heater 4 enter
Mouth is connected, and the heat release side outlet of heat pump flue gas heater 5 is connected with the heat absorption side entrance of evaporator with heat pump 2, and hot net water is defeated
Enter pipeline with the heat absorption side entrance of heat supply network water heater 4 to be connected, the heat absorbing side of hot net water output channel and heat supply network water heater 4
Outlet is connected.
The heat release side outlet of heat pump flue gas heater 5 is connected through throttling of heat pump valve 6 with the heat absorption side entrance of evaporator with heat pump 2
It is logical；It is provided with condensation water collecting device in evaporator with heat pump 2；The utility model further includes condensed water treating device, wherein condensation
Water treatment facilities is connected with the outlet of condensation water collecting device.
Utility model works principle is as follows：
The wet flue gas that desulfuration absorbing tower 1 exports, which enters, carries out heat release in evaporator with heat pump 2, flue gas saturation temperature is made to drop
It is low, make the condensables particulate matters such as steam, soluble-salt, sulfuric acid mist and the organic matter in flue gas that condensation be precipitated, then through heat pump flue gas
The heating of heater 5 is 65 DEG C -80 DEG C of unsaturation flue gas, is then discharged again through chimney 7, and 5 cold side of heat pump flue gas heater is defeated
It absorbs heat in the heat absorbing side that the working medium gone out enters evaporator with heat pump 2 after the throttling of throttling of heat pump valve 6, is then compressed through heat pump
Machine 3 enters in heat supply network water heater 4 after compressing and heats hot net water, to improve the temperature of hot net water.
The utility model effectively recycles tow taste heat using heat pump techniques, is converted into high-grade thermal energy, to replace
For traditional high-temperature flue gas, the mode of bleeder steam heating, unit efficiency and heat capacity are improved.
In addition, the utility model is by cooling down to flue gas, making the steam in flue gas, soluble-salt, sulfuric acid mist and having
The condensation of the condensables particulate matter such as machine object is precipitated, and is discharged from chimney 7 after then heating up again, and condensable particle in flue gas is discharged to reduce
The amount of object avoids the occurrence of chimney 7 and emits 7 rain phenomenon of white cigarette phenomenon and chimney.In addition, passing through the condensation of recovered flue gas cooling condensation
Water, achievees the purpose that water-saving, while realizing heating to hot net water.
It should be noted that during evaporator with heat pump 2 carries out cool-down dehumidification to flue gas, consider in view of economy, cigarette
Temperature degree, which reduces 3-5 DEG C, to be advisable, and humidity of flue gas can reduce 15%-25%.In addition, the hot net water in the utility model can lead to
The condensed water for crossing condenser is substituted.
Claims (4)
1. a kind of carrying out flue gas condensing dehumidifying temperature elevation system again using compression heat pump, which is characterized in that inputted including hot net water
Pipeline, hot net water output channel, desulfuration absorbing tower (1), evaporator with heat pump (2), heat pump compressor (3), heat supply network water heater
(4), heat pump flue gas heater (5) and chimney (7)；
The outlet of desulfuration absorbing tower (1) is connected with the heat release side entrance of evaporator with heat pump (2), the heat release of evaporator with heat pump (2)
Side outlet is connected with the heat absorption side entrance of heat pump flue gas heater (5), the heat absorption side outlet and cigarette of heat pump flue gas heater (5)
The entrance of chimney (7) is connected, and the heat absorption side outlet of evaporator with heat pump (2) is through heat pump compressor (3) and heat supply network water heater (4)
Heat release side entrance is connected, the heat release side outlet of heat supply network water heater (4) and the heat release side entrance phase of heat pump flue gas heater (5)
Connection, the heat release side outlet of heat pump flue gas heater (5) are connected with the heat absorption side entrance of evaporator with heat pump (2), and hot net water is defeated
Enter pipeline with the heat absorption side entrance of heat supply network water heater (4) to be connected, the suction of hot net water output channel and heat supply network water heater (4)
Hot side outlet is connected.
2. according to claim 1 carry out flue gas condensing dehumidifying temperature elevation system again using compression heat pump, which is characterized in that
The heat release side outlet of heat pump flue gas heater (5) is connected through throttling of heat pump valve (6) with the heat absorption side entrance of evaporator with heat pump (2)
It is logical.
3. according to claim 1 carry out flue gas condensing dehumidifying temperature elevation system again using compression heat pump, which is characterized in that
It is provided with condensation water collecting device in evaporator with heat pump (2).
4. according to claim 3 carry out flue gas condensing dehumidifying temperature elevation system again using compression heat pump, which is characterized in that
Further include condensed water treating device, wherein condensed water treating device is connected with the outlet of condensation water collecting device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454620.6U CN208012160U (en) | 2018-04-02 | 2018-04-02 | System for condensing, dehumidifying and reheating flue gas by using compression heat pump |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820454620.6U CN208012160U (en) | 2018-04-02 | 2018-04-02 | System for condensing, dehumidifying and reheating flue gas by using compression heat pump |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208012160U true CN208012160U (en) | 2018-10-26 |
Family
ID=63891739
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820454620.6U Active CN208012160U (en) | 2018-04-02 | 2018-04-02 | System for condensing, dehumidifying and reheating flue gas by using compression heat pump |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208012160U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413656A (en) * | 2018-04-02 | 2018-08-17 | 华能国际电力股份有限公司 | System and method for condensing, dehumidifying and reheating flue gas by using compression heat pump |
| CN109579038A (en) * | 2018-11-27 | 2019-04-05 | 常州大学 | Natural gas flue gas dehumidifying residual heat reutilizing system |
-
2018
- 2018-04-02 CN CN201820454620.6U patent/CN208012160U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108413656A (en) * | 2018-04-02 | 2018-08-17 | 华能国际电力股份有限公司 | System and method for condensing, dehumidifying and reheating flue gas by using compression heat pump |
| CN109579038A (en) * | 2018-11-27 | 2019-04-05 | 常州大学 | Natural gas flue gas dehumidifying residual heat reutilizing system |
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