CN206454474U - Fired oilfield gas injection boiler flue gas comprehensive utilization device - Google Patents
Fired oilfield gas injection boiler flue gas comprehensive utilization device Download PDFInfo
- Publication number
- CN206454474U CN206454474U CN201621169812.XU CN201621169812U CN206454474U CN 206454474 U CN206454474 U CN 206454474U CN 201621169812 U CN201621169812 U CN 201621169812U CN 206454474 U CN206454474 U CN 206454474U
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- CN
- China
- Prior art keywords
- flue gas
- injection boiler
- gas injection
- desulfurizing tower
- fired
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Abstract
The utility model belongs to fired oilfield gas injection boiler flue gas field of comprehensive utilization, and in particular to fired oilfield gas injection boiler flue gas comprehensive utilization device.Device includes following equipment：Fired oilfield gas injection boiler, air compressor, desulfurizing tower and efflux pump；Fired oilfield gas injection boiler is connected with desulfurizing tower, the top connection air compressor of desulfurizing tower, the bottom connection efflux pump of desulfurizing tower；In desulfurizing tower, sulfur dioxide in flue gas is dissolved in waste water by the flue gas of fired oilfield gas injection boiler discharge and the waste water of fired oilfield gas injection boiler discharge, the waste water for being dissolved with sulfur dioxide is discharged by efflux pump, and the flue gas air inlet compressor of scrubbing CO_2 is pressed into pressure-air.The utility model provides fired oilfield gas injection boiler flue gas comprehensive utilization device by fired oilfield gas injection boiler flue gas heat recovery, then by desulfurization, compression notes the source of the gas that nitrogen recovers the oil as oil field, injects underground, improve oil exploitation efficiency.
Description
Technical field
The utility model principally falls into fired oilfield gas injection boiler flue gas field of comprehensive utilization, and in particular to fired oilfield gas injection boiler
Flue gas comprehensive utilization device.
Background technology
The now widely used mode that high steam is injected into oilbearing stratum in oil field exploits oil, and high steam is by noting
Gas boiler is produced.Fired oilfield gas injection boiler can produce substantial amounts of flue gas, be directly discharged into air while steam is produced.It is useless
Containing the pernicious gas for wherein causing greatly to pollute to environment containing carbon dioxide, nitrogen, sulfide etc. in flue gas, ring can be polluted
Border, while row also results in the waste of the energy outside heat in flue gas.
The matching used boiler feed system of fired oilfield gas injection boiler can produce a certain amount of waste water, contain a large amount of salinities, nothing
Method is normally used, and can only regard sewage disposal.
Used to underground petroleum layer injection high pressure nitrogen as a kind of novel oil production mode is just increasingly extensive by oil field, but
It is that nitrogen separation equipment is huge, it is impossible to move, causes transport difficult, use cost is high.
Utility model content
In view of the above-mentioned problems, the utility model provides fired oilfield gas injection boiler flue gas comprehensive utilization device by oilfield gas injection pot
Stove flue gas heat recovery, then by desulfurization, compression, the source of the gas recovered the oil as oilfield gas injection injects underground, improves oil exploitation
Efficiency.
The utility model is achieved through the following technical solutions：
Fired oilfield gas injection boiler flue gas comprehensive utilization device, described device includes following equipment：Fired oilfield gas injection boiler, air
Compressor, desulfurizing tower and efflux pump；The fired oilfield gas injection boiler includes flue gas outlet and waste water discharge opening；The useless cigarette
Gas outlet is connected with the desulfurizing tower respectively with the waste water discharge opening, and the top of the desulfurizing tower connects the air compression
Machine, the bottom of the desulfurizing tower connects the efflux pump；In the desulfurizing tower, the flue gas of the flue gas outlet discharge
Sulfur dioxide in the flue gas is dissolved in the waste water by the waste water discharged with the waste water discharge opening, is dissolved with
The waste water of sulfur dioxide is discharged by the efflux pump, and the flue gas of scrubbing CO_2 is pressed into the air compressor
Into pressure-air.
Further, air preheater, the air preheater bag are connected between the flue gas outlet and desulfurizing tower
Include smoke inlet, exhanst gas outlet, combustion air inlet and combustion air outlet, the smoke inlet and flue gas outlet phase
Even, exhanst gas outlet is connected with desulfurizing tower, and combustion air inlet is connected with combustion air source, combustion air outlet and oilfield gas injection pot
The combustion air inlet of stove is connected；The flue gas of the flue gas outlet discharge of fired oilfield gas injection boiler is entered by smoke inlet
Air preheater carries out heat exchange with the combustion air from combustion air inlet air inlet preheater reduces the temperature of flue gas
The temperature of combustion air is improved simultaneously, and subsequent flue gas enters desulfurizing tower from exhanst gas outlet, and combustion air is injected by combustion air
Mouth is injected into fired oilfield gas injection boiler.
Further, aerial cooler is connected between the desulfurizing tower and the air compressor, to remove the removing
Steam in the flue gas of sulfur dioxide.
Further, the top of the desulfurizing tower is also associated with fume extractor, a part of scrubbing CO_2 it is useless
Flue gas is discharged by fume extractor, and the ratio of the flue gas for the scrubbing CO_2 discharged from fume extractor can be in the range of 0 ~ 100%
Regulation.
Further, the air compressor is connected with oilbearing stratum, and the pressure-air is injected into oilbearing stratum conduct
The source of the gas that oilfield gas injection recovers the oil.
Further, the equipment room is connected by pipeline.
Advantageous effects of the present utility model：
（1）On the one hand the utility model can effectively solve the flue gas processing problem of fired oilfield gas injection boiler, on the other hand profit
The source of the gas recovered the oil with flue gas as oilfield gas injection, injects underground, realizes the comprehensive utilization of resources of fired oilfield gas injection boiler flue gas.
（2）The utility model device operates safe ready, and maintenance is few, practical.
Brief description of the drawings
Fig. 1, the utility model fired oilfield gas injection boiler flue gas comprehensive utilization device schematic diagram；
In figure：1st, fired oilfield gas injection boiler, 2, air preheater, 3, fume extractor, 4, aerial cooler, 5, air pressure
Contracting machine, 6, desulfurizing tower, 7, efflux pump, 11, flue gas outlet 12, waste water discharge opening, 13, combustion air inlet.
Embodiment
In order that the purpose of this utility model, technical scheme and advantage are more clearly understood, below in conjunction with accompanying drawing and implementation
Example, the utility model is explained in further detail.It should be appreciated that specific embodiment described herein is only used for explaining this
Utility model, is not used to limit the utility model.
On the contrary, the utility model cover it is any be defined by the claims do in spirit and scope of the present utility model
Replacement, modification, equivalent method and scheme.Further, it is right below in order that the public has a better understanding to the utility model
It is detailed to describe some specific detail sections in detailed description of the present utility model.Do not have for a person skilled in the art
The description of these detail sections can also understand the utility model completely.
Embodiment 1
Fired oilfield gas injection boiler flue gas comprehensive utilization device, as shown in figure 1, described device includes following equipment：Note in oil field
Gas boiler 1, air compressor 5, desulfurizing tower 6 and efflux pump 7；The fired oilfield gas injection boiler 1 includes flue gas outlet 11 and useless
Water outlet 12；The flue gas outlet 11 is connected with the desulfurizing tower 6 respectively with the waste water discharge opening 12, the desulfurization
The top of tower 6 connects the air compressor 5, and the bottom of the desulfurizing tower 6 connects the efflux pump 7；In the desulfurizing tower 6
In, the waste water that the flue gas and the waste water discharge opening 12 that the flue gas outlet 11 is discharged are discharged is by the flue gas
In sulfur dioxide be dissolved in the waste water, the waste water for being dissolved with sulfur dioxide is discharged by the efflux pump 7, remove dioxy
The flue gas for changing sulphur is pressed into pressure-air into the air compressor 5.
Air preheater 2 is connected between the flue gas outlet 11 and desulfurizing tower 6, the air preheater 2 includes cigarette
Gas entrance, exhanst gas outlet, combustion air inlet and combustion air outlet, the smoke inlet are connected with flue gas outlet 11,
Exhanst gas outlet is connected with desulfurizing tower 6, and combustion air inlet is connected with combustion air source, combustion air outlet and fired oilfield gas injection boiler
Combustion air inlet 13 be connected；The flue gas that the flue gas outlet 11 of fired oilfield gas injection boiler is discharged is entered by smoke inlet
Enter air preheater 2 and carry out heat exchange reduction flue gas with the combustion air from combustion air inlet air inlet preheater 2
Temperature improves the temperature of combustion air simultaneously, and subsequent flue gas enters desulfurizing tower from exhanst gas outlet, and combustion air is by combustion air
Inlet 13 is injected into fired oilfield gas injection boiler.
Combustion air before air inlet preheater 2 is room temperature, and the temperature of flue gas is 170-200, from air preheater 2
Go out, 100-150 DEG C is down at a temperature of flue gas, combustion air temperature brings up to 60-80 DEG C or so.Air preheat is set
Device, on the one hand, can to 60-80 DEG C by preheating raising air themperature by the combustion air for entering fired oilfield gas injection boiler in order to save
To save 3-5%;On the other hand, reduction boiler waste gas temperature is easy to waste gas to be dehydrated and compression processing.
Aerial cooler 4 is connected between the desulfurizing tower 6 and the air compressor 5, to remove the removing titanium dioxide
Steam in the flue gas of sulphur.
The top of the desulfurizing tower 6 is also associated with fume extractor 3, and the flue gas of a part of scrubbing CO_2 is arranged
Cigarette device is discharged, and the ratio of the flue gas for the scrubbing CO_2 discharged from fume extractor can be adjusted in the range of 0 ~ 100%.
The exhausted air quantity that fired oilfield gas injection boiler is produced very greatly can not be all of free from environmental pollution complete by flue gas in order to ensure
Portion reaches that discharging standards rear portion is utilized a part and is discharged by desulfurizer;Discharge and proportion of utilization can be with
Can adjust according to actual conditions can be from 0-100%;The control flowmeter output 4-20mA analog signal control motorized adjustments of ratio
Valve automatically adjusts or used manual modulation valve.
The air compressor 5 is connected with oilbearing stratum, and the pressure-air is injected into oilbearing stratum as oilfield gas injection
The source of the gas of oil recovery.
The high-temperature waste flue gas that fired oilfield gas injection boiler 1 is produced are discharged along pipeline air inlet preheater through flue gas outlet 11
2, the combustion air heat exchange with entering fired oilfield gas injection boiler 1, the flue gas after temperature reduction enters desulfurizing tower 6, the top of desulfurizing tower 6
Under spray（Hydraulic pressure control is sprayed within 0.2Mpa, not limited flow rate）The fired oilfield gas injection boiler discharged by waste water discharge opening 12 is supplied
The waste water that water system is produced, in the inside gas-liquid contact of desulfurizing tower 6, the sulfur dioxide in flue gas is dissolved in waste water, waste water
Again by efflux pump 7, wastewater treatment equipment is sent to.A flue gas part for scrubbing CO_2 is arranged by pipeline by chimney 3 is outer
After the moisture contained in removing flue gas, height is pressed into by air compressor 5 for air, another part air inlet cooler 4
Press air（The air pressure of pressure-air is 21MPa）, reinject oilbearing stratum.Fired oilfield gas injection boiler flue gas contain carbon dioxide,
The pernicious gas that nitrogen, sulfide etc. cause greatly to pollute to environment, after being handled through desulfurizing tower, the high pressure that air compressor is made
Air is the high pressure mixed gas of carbon dioxide and nitrogen.Using under the high pressure mixed gas injection well of carbon dioxide and nitrogen as
The source of the gas of gas-injection oil-production.
All devices are connected by pipeline.
Claims (6)
1. fired oilfield gas injection boiler flue gas comprehensive utilization device, it is characterised in that described device includes following equipment：Oilfield gas injection
Boiler（1）, air compressor（5）, desulfurizing tower（6）And efflux pump（7）；The fired oilfield gas injection boiler（1）Including flue gas discharge
Mouthful（11）, waste water discharge opening（12）With combustion air inlet（13）；The flue gas outlet（11）With waste water discharge
Mouthful（12）Respectively with the desulfurizing tower（6）It is connected, the desulfurizing tower（6）Top connect the air compressor（5）, it is described de-
Sulphur tower（6）Bottom connect the efflux pump（7）.
2. fired oilfield gas injection boiler flue gas comprehensive utilization device as claimed in claim 1, it is characterised in that the flue gas discharge
Mouthful（11）With desulfurizing tower（6）Between be connected with air preheater（2）, the air preheater（2）Go out including smoke inlet, flue gas
Mouth, combustion air inlet and combustion air outlet, the smoke inlet and flue gas outlet（11）It is connected, exhanst gas outlet and de-
Sulphur tower（6）It is connected, combustion air inlet is connected with combustion air source, the combustion air of combustion air outlet and fired oilfield gas injection boiler
Inlet（13）It is connected.
3. fired oilfield gas injection boiler flue gas comprehensive utilization device as claimed in claim 1, it is characterised in that the desulfurizing tower（6）
With the air compressor（5）Between be connected with aerial cooler（4）.
4. fired oilfield gas injection boiler flue gas comprehensive utilization device as claimed in claim 1, it is characterised in that the desulfurizing tower（6）
Top be also associated with fume extractor（3）.
5. the fired oilfield gas injection boiler flue gas comprehensive utilization device as described in claim 1-4 is any, it is characterised in that the air
Compressor（5）It is connected with oilbearing stratum, pressure-air is injected into the source of the gas that oilbearing stratum recovers the oil as oilfield gas injection.
6. the fired oilfield gas injection boiler flue gas comprehensive utilization device as described in claim 1-4 is any, it is characterised in that the equipment
Between connected by pipeline.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169812.XU CN206454474U (en) | 2016-11-02 | 2016-11-02 | Fired oilfield gas injection boiler flue gas comprehensive utilization device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621169812.XU CN206454474U (en) | 2016-11-02 | 2016-11-02 | Fired oilfield gas injection boiler flue gas comprehensive utilization device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206454474U true CN206454474U (en) | 2017-09-01 |
Family
ID=59693030
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621169812.XU Expired - Fee Related CN206454474U (en) | 2016-11-02 | 2016-11-02 | Fired oilfield gas injection boiler flue gas comprehensive utilization device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206454474U (en) |
-
2016
- 2016-11-02 CN CN201621169812.XU patent/CN206454474U/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 |
Granted publication date: 20170901 Termination date: 20181102 |
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| CF01 | Termination of patent right due to non-payment of annual fee |