CN206897100U - A kind of vapor recovery system of desulfurization fume - Google Patents
A kind of vapor recovery system of desulfurization fume Download PDFInfo
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- CN206897100U CN206897100U CN201720730400.7U CN201720730400U CN206897100U CN 206897100 U CN206897100 U CN 206897100U CN 201720730400 U CN201720730400 U CN 201720730400U CN 206897100 U CN206897100 U CN 206897100U
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- water
- heat transmission
- transmission equipment
- recovery system
- vapor recovery
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Abstract
The utility model provides a kind of vapor recovery system of desulfurization fume, including an at least heat transmission equipment, a technique water tank and an automatic control system, heat transmission equipment is arranged on desulfuration absorbing tower exhaust pass, entrance point is connected to the moisturizing pipeline of a process water, process water is received to cool to flue gas, vapor in flue gas is condensed, the port of export is connected to technique water tank by an outlet conduit；The technique water tank is connected to the entrance point of heat transmission equipment with recirculation water by a water return pipeline；Flue-gas temperature and outlet conduit water temperature after automatic control system detection cooling, adjust process water moisturizing pipeline and the water-carrying capacity of water return pipeline according to this.
Description
Technical field
It the utility model is related to coal steam-electric plant smoke purification and Sewage treatment field, and in particular to a kind of water of desulfurization fume steams
Gas recovery system.
Background technology
Thermal power plant is generated electricity by combustibles such as burning coals, produces substantial amounts of sulfur dioxide, to avoid sulfur dioxide
Air is discharged into flue gas to pollute, effective is to carry out desulfurization using wet method by desulfuration absorbing tower, but is brought therewith
The problem of be to produce substantial amounts of vapor (espespecially vaporous water), these vapor are saturation state, as flue gas is brought to together
In air.The present situation lacked in face of water resource, this part water is greatly to waste.If this part water can be extracted and is applied to
It in system, will reduce water consumption, contributed for power plant's water balance.Vapor is largely carried in desulfuration absorbing tower exiting flue gas,
It is to waste to water resource, while forms white plume, causes visual pollution.
Utility model content
To overcome above-mentioned deficiency, the utility model provides a kind of vapor recovery system of desulfurization fume, utilizes process water
Desulfuration absorbing tower exiting flue gas is cooled, the water vapor condensation for carrying it, can be adjusted in time according to flue-gas temperature cold
Solidifying dynamics, it is ensured that vapor fully condenses, and recovery condensed water is used for desulphurization system slurrying.
In order to solve the above technical problems, the utility model adopts the following technical scheme that：
A kind of vapor recovery system of desulfurization fume, including the automatic control of an at least heat transmission equipment, a technique water tank and one
System processed, heat transmission equipment are arranged on desulfuration absorbing tower exhaust pass, and entrance point is connected to the moisturizing pipeline of a process water, are received
Process water condenses vapor in flue gas, the port of export is connected to process water by an outlet conduit to cool to flue gas
Case；The technique water tank is connected to the entrance point of heat transmission equipment with recirculation water by a water return pipeline；The automatic control system detects
Flue-gas temperature and outlet conduit water temperature after cooling, process water moisturizing pipeline and the water-carrying capacity of water return pipeline are adjusted according to this.
Heat exchange refrigerant of the system using process water as heat transmission equipment, vapor in flue gas is condensed into using heat transmission equipment
Water.Because the temperature difference of process water and flue gas is 60-80 DEG C, the specific heat capacity of water is big, and process water can absorb heat rapidly after contact, cause
Cigarette temperature is greatly reduced, and is unfavorable for follow-up chimney diffusion, or even cause condensate in flue.To avoid such a situation from occurring, by returning
The part water of temperature between is back to heat transmission equipment by waterpipe, to adjust technique coolant-temperature gage.Technique storing water in water tank is used in combination
It is water circulation and the important intermediate link of coolant controlled also by part water circulation use in desulfurization pulping system.To ensure flue gas
Middle vapor condensation effect, flue-gas temperature and coolant-temperature gage are detected by automatic control system, are adjusted process water moisturizing according to this and are returned
Water-carrying capacity.
Further, heat transmission equipment is two, is successively set on desulfuration absorbing tower exhaust pass, to vapor in flue
Carry out condensed in two stages.
Further, process water moisturizing pipeline is provided with a regulating valve with heat transmission equipment entrance point junction, and the regulating valve connects
Connect and be controlled by automatic control system；Automatic control system can be according to actual conditions automatic control and adjustment valve opening, and it is suitable to ensure
Process water refill flow.
Further, water return pipeline is provided with a circulating pump, delivers to the part water of technique water tank by the circulating pump and changes
Hot equipment is recycled.
Further, the entrance point of water return pipeline and heat transmission equipment is connected, and a regulating valve, the regulating valve are provided with junction
Connect and be controlled by automatic control system；Automatic control system can control to adjust valve opening, ensure suitable circling water flow rate.
Further, on the downstream flue of heat transmission equipment and it is respectively provided with one on outlet conduit and is connected with automatic control system
Temperature sensor, it detects the temperature of flue outlet end flue gas and outlet conduit moisture and temperature information is sent into automatic control
System processed, automatic control system control to adjust valve regulation water-carrying capacity according to this.
Further, technique water tank is also connected with a blow-off line, a dredge pump is provided with the blow-off line, by process water
The sludge of case deposition is periodically discharged.
Brief description of the drawings
Fig. 1 is a kind of vapor recovery system schematic diagram of desulfurization fume of embodiment.
In figure：1- desulfuration absorbing towers, 2- flues, 3- chimneys, 4- process water moisturizing pipelines, the regulating valves of 51- first, 52 second
Regulating valve, the regulating valves of 53- the 3rd, the regulating valves of 54- the 4th, 61 first heat transmission equipments, the heat transmission equipments of 62- second, 7- outlet conduits,
The temperature sensors of 81- first, 82- second temperature sensors, 9- technique water tanks, 10- water return pipelines, 11- circulating pumps, 12- blowdowns
Pipeline, 13- dredge pumps, 14- automatic control systems.
Embodiment
To enable features described above and advantage of the present utility model to become apparent, special embodiment below, and appended by cooperation
Figure is described in detail below.
The present embodiment provides a kind of vapor recovery system of desulfurization fume, as shown in figure 1, being exported in desulfuration absorbing tower 1
End is led on the flue 2 of chimney 3 installs two heat transmission equipments successively, i.e. the first heat transmission equipment 61 and the second heat transmission equipment 62, and two
Heat transmission equipment entrance point receives process water commonly through a process water moisturizing pipeline 4, the port of export commonly through an outlet conduit 7 with
Technique water tank 9 connects, and carries out two-stage cooling to flue gas in flue 2 using process water, vapor therein is condensed, by the work after
Skill water and steam condensed water is sent into technique water tank 9, for desulfurization pulping system.It should be noted that change in specific application
The quantity of hot equipment can as needed depending on, at least one, this example realizes the steps cooling of two-stage using two, avoids cigarette
Vapor directly condenses ponding in flue caused by the rapid drawdown of temperature degree, is advantageous to condensation recovery and the flue gas of vapor
Follow-up diffusion.
Because condensed water comes from flue gas, a small amount of flue dust will necessarily be carried, sludge is deposited into technique water tank 9, therefore need
Periodic cleaning is wanted, by installing blow-off line 12 and dredge pump 13 on technique water tank 9, periodically sludge is discharged, ensured
Technique water tank 9 cleans and moisture storage capacity.A water return pipeline 10 is further connected with technique water tank 9, the water return pipeline 10, which is connected to, to be changed
The entrance point of hot equipment, by the circulating pump 11 on water return pipeline 10, section store water is back in heat transmission equipment, with technique
Water mixes.Because flue gas and technique water temperature difference are 60-80 DEG C, the specific heat capacity of water is much larger than flue gas again, easilys lead to during heat exchange
Flue-gas temperature rapid drawdown, cause vapor to be condensed in flue 2, be also unfavorable for subsequently spreading, therefore to prevent the situation from occurring, by
Water return pipeline 10 is passed through backwater of the temperature between flue gas and process water, it is possible to increase heat exchange refrigerant temperature, reduces the temperature difference.
Two heat transmission equipments are respectively equipped with the first regulating valve 51 and the second regulating valve 52 with the junction of process water moisturizing pipeline 4,
The 3rd regulating valve 53 and the 4th regulating valve 54 are also respectively equipped with the junction of water return pipeline 10, process water and backwater can be adjusted
Uninterrupted.To ensure fully to condense vapor, the first temperature sensor 81, examinations row are set on outlet conduit 7
The temperature of water outlet, second temperature sensor 82, flue gas after examinations cooling are set on the downstream flue 2 after heat-exchanger rig
Temperature, the two is connected with automatic control system 14, and the temperature information of detection is passed into automatic control system 14.This is automatic
Control system 14 is connected and is controlled with four regulating valves, and the aperture of valve can be controlled to adjust according to the temperature information of detection.
Specifically, when the water temperature and all higher cigarette temperature of two temperatures sensor detection, it was demonstrated that condensation is not in place, can tune up regulating valve automatically
Aperture, increase the inlet of process water, it is sufficiently cool to flue gas；When the temperature is too low, it was demonstrated that condensation is superfluous, can be automatically appropriate
Turn the first regulating valve 51 and the aperture of the second regulating valve 52 down, suitably tune up the 3rd regulating valve 53 and the aperture of the 4th regulating valve 54, this
Sample can both ensure that flue gas was sufficiently cool, nor can excessively utilize process water, using water wisely.
From the foregoing, it will be observed that the system is cooled desulfuration absorbing tower exiting flue gas using heat transmission equipment, vapor in flue gas is cold
Coagulate for water, and be recovered to technique water tank, use desulfurization pulping system；Heat exchange refrigerant is desulphurization system process water, and process water passes through
Heated up after heat exchange, the process water after heating is also fed into technique water tank, and for pulping system, so as to realize, self is returned in desulphurization system
Water-saving system.Can be by setting multiple heat transmission equipments, the controllability using the increase water-carrying capacity such as water return pipeline and coolant-temperature gage.
By the real-time monitoring temperature of temperature sensor, the aperture of each regulating valve is adjusted by automatic control system, it is ensured that optimal
Condensation effect.In addition, to avoid dirt from being accumulated in technique water tank, by dredge pump periodical blowdown, ensure live storage volume
And water quality.The system utilizes vapor in technique water condensation flue gas, simple in construction, easily implements, saving water resource, realizes energy-conservation
Emission reduction.
Claims (7)
- A kind of 1. vapor recovery system of desulfurization fume, it is characterised in that including an at least heat transmission equipment, a technique water tank and One automatic control system, heat transmission equipment are arranged on desulfuration absorbing tower exhaust pass, and entrance point is connected to the moisturizing of a process water Pipeline, process water is received to cool to flue gas, condenses vapor in flue gas, the port of export is connected by an outlet conduit In technique water tank；The technique water tank is connected to the entrance point of heat transmission equipment with recirculation water by a water return pipeline；This is automatically controlled Flue-gas temperature and outlet conduit water temperature after system detectio cooling, the current of process water moisturizing pipeline and water return pipeline are adjusted according to this Amount.
- A kind of 2. vapor recovery system of desulfurization fume according to claim 1, it is characterised in that heat transmission equipment two It is individual, it is successively set on desulfuration absorbing tower exhaust pass.
- A kind of 3. vapor recovery system of desulfurization fume according to claim 1, it is characterised in that process water filling pipe Road is provided with a regulating valve with heat transmission equipment entrance point junction, and the regulating valve connects and is controlled by automatic control system.
- 4. the vapor recovery system of a kind of desulfurization fume according to claim 1, it is characterised in that set on water return pipeline There is a circulating pump.
- 5. the vapor recovery system of a kind of desulfurization fume according to claim 1, it is characterised in that water return pipeline is with changing The entrance point connection of hot equipment, is provided with a regulating valve, the regulating valve connects and is controlled by automatic control system in junction.
- 6. the vapor recovery system of a kind of desulfurization fume according to claim 1, it is characterised in that in heat transmission equipment A temperature sensor being connected with automatic control system is respectively provided with the flue of downstream and on outlet conduit.
- 7. the vapor recovery system of a kind of desulfurization fume according to claim 1, it is characterised in that technique water tank also connects A blow-off line is connect, a dredge pump is provided with the blow-off line.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730400.7U CN206897100U (en) | 2017-06-22 | 2017-06-22 | A kind of vapor recovery system of desulfurization fume |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720730400.7U CN206897100U (en) | 2017-06-22 | 2017-06-22 | A kind of vapor recovery system of desulfurization fume |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206897100U true CN206897100U (en) | 2018-01-19 |
Family
ID=61285533
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720730400.7U Expired - Fee Related CN206897100U (en) | 2017-06-22 | 2017-06-22 | A kind of vapor recovery system of desulfurization fume |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206897100U (en) |
-
2017
- 2017-06-22 CN CN201720730400.7U patent/CN206897100U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 |