CN205012979U - Recycle equipment is retrieved to flue gas - Google Patents
Recycle equipment is retrieved to flue gas Download PDFInfo
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- CN205012979U CN205012979U CN201520594646.7U CN201520594646U CN205012979U CN 205012979 U CN205012979 U CN 205012979U CN 201520594646 U CN201520594646 U CN 201520594646U CN 205012979 U CN205012979 U CN 205012979U
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Abstract
The utility model relates to a burning tail gas of the natural gas heating furnace that used in oil, gas field well head place retrieves and recycles technical field, especially relates to recycle equipment is retrieved to flue gas. The utility model discloses a recycle equipment is retrieved to flue gas, include the refrigerating plant, a gas -liquid separation, dust collector and the gas compression device that connect in order with gas pipeline. Adopt recycle equipment is retrieved to flue gas, to tail gas cool off, processing such as separation, purification, dehydration, pressure boost, make tail gas accord with the recycle condition, make the well underground keep sufficient displacement of reservoir oil energy to can prevent that the outer row of tail gas from causing air pollution, and adopt tail gas as recycling the air supply, has solved the uneconomic problem of gas for the recycle oily, the gas well again, a whole set of recycle equipment is retrieved to flue gas simple structure and convenient operation.
Description
Technical field
The combustion tail gas that the utility model belongs to the gas heating furnace that petroleum-gas fiedl well head place uses reclaims and reinjection technique field, particularly relates to off-gas recovery reinjection apparatus.
Background technology
Oil, gas exploitation and collect in defeated process, be the most basic technology in oil-gas gathering and transportation process to crude oil, heated by natural gas.The storage of crude oil, transport, dehydration, stable etc. all to need heating crude oil to required temperature.Equally, natural gas also because of the change of exploitation and discharge pressure, component, very easily forms hydrate and cause frozen block.Thus each well, station all need the water jacket furnace heater configuring certain scale.This device is generally fuel with natural gas.In heating process, the waste gas after burning, continuously to airborne release, causes atmosphere pollution.
On the other hand, from oil, gas reservoir extraction oily gentle, underground is occurred in debt, thus reduces the original energy in underground.For retentively enough down displacement of reservoir oil energy, the thing of respective volume of certainly will should reinjecting in oil reservoir goes to make up the deficit of extraction.
In modern petroleum-gas fiedl exploitation, the general way of water filling or gas injection that adopts keeps oil, gas-bearing formation energy.Because the gentle ratio of water is easier to inject oil reservoir, originates abundanter again, generally can obtain on the spot, naturally also just both economical, changing oil with water or change oil with gas, is very worth.Current gas injection, is generally adopted the natural gas of extraction in oil reservoir, is recycled in the high-order bit of oil reservoir again goes by special gas injection well.Because the natural gas added value of extraction in oil reservoir is high, very uneconomical for re-injection.
Utility model content
Technical problem to be solved in the utility model is: provide a kind of can solve water jacket furnace burning after exhaust emission environmental problem can solve again the off-gas recovery reinjection apparatus of the uneconomic problem of re-injection gas of current oil, gas well.
Utility model the utility model solves the off-gas recovery reinjection apparatus that its technical problem adopts, and comprises the first refrigerating plant, the first gas-liquid separation device, dust arrester and the first gas compressing apparatus that connect in turn with gas pipeline.
Further, also the second gas-liquid separation device, the second refrigerating plant, the 3rd gas-liquid separation device and the second gas compressing apparatus that connect in turn of useful gas pipeline after described first gas compressing apparatus.
Further, described second refrigerating plant is propane refrigerator, and described propane refrigerator is also communicated with methyl alcohol gas injection tank.
Further, described first gas compressing apparatus and the second gas compressing apparatus are helical-lobe compressor.
Further, described dust arrester is sack cleaner.
Further, described first refrigerating plant is air cooler.
The beneficial effects of the utility model are: adopt off-gas recovery reinjection apparatus, tail gas cooled, is separated, purify, dewater, the process such as supercharging, make tail gas meet re-injection condition, make the displacement of reservoir oil energy that well underground keeps enough, and can prevent from tail gas from arranging outward causing air pollution; And adopt tail gas as re-injection source of the gas, solve the uneconomic problem of re-injection gas of oil, gas well; A whole set of off-gas recovery reinjection apparatus structure is simple and easy to operate.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model one embodiment;
Fig. 2 is the structural representation of another embodiment of the utility model;
Position and numbering in figure: the first refrigerating plant 11, second refrigerating plant 12, first gas-liquid separation device 21, second gas-liquid separation device 22, the 3rd gas-liquid separation device 23, dust arrester 3, first gas compressing apparatus 41, second gas compressing apparatus 42, methyl alcohol gas injection tank 5.
Detailed description of the invention
Below in conjunction with accompanying drawing, the utility model is described in further detail.It should be noted that at this, the explanation for these embodiments understands the utility model for helping, but does not form restriction of the present utility model.
As depicted in figs. 1 and 2, the off-gas recovery reinjection apparatus that the utility model relates to comprises the first refrigerating plant 11, first gas-liquid separation device 21, dust arrester 3 and the first gas compressing apparatus 41 that connect in turn with gas pipeline.Carry out because step each in re-injection technique needs to close, therefore valve is set between equipment and equipment, manually-operated gate or intelligent valve can be selected as required.In order to conforming equipment position, sledge technology can be adopted into every platform equipment is fixed relatively.
Specifically, in order to strengthen the water removal effect of flue gas and be convenient to increase further the air pressure of flue gas, as shown in Figure 2, also the second gas-liquid separation device 22, second refrigerating plant 12, the 3rd gas-liquid separation device 23 and the second gas compressing apparatus 42 that connect in turn of useful gas pipeline after described first gas compressing apparatus 41.Namely the circulation twice refrigeration has been carried out to flue gas, dewatering and increase, adopt this complete equipment can reach good water removal effect, improve the quality of re-injection flue gas, and the impact of flue gas on chiller plant after efficient water-removing is less, can extend the application life of complete equipment.
Specifically, in order to strengthen the water removal effect of flue gas and prevent line clogging, described second refrigerating plant 12 is propane refrigerator, and described propane refrigerator is also communicated with methyl alcohol gas injection tank 5.The effect of methyl alcohol gas injection tank 5 injects methyl alcohol in the forward direction tail gas of tail gas refrigeration, occurs Low-temperature Ice and blocking pipe after preventing refrigeration.
Specifically, described first gas compressing apparatus 41 and the second gas compressing apparatus 42 are helical-lobe compressor.The compression efficiency of helical-lobe compressor 6 is high, and closure is good, and cost is low.
Specifically, described dust arrester 3 is sack cleaner, and described first refrigerating plant 11 is air cooler.
When utilizing equipment as shown in Figure 2 to carry out off-gas recovery re-injection, first, the first refrigerating plant 11 is delivered to by the tail gas recycle of discharging from water jacket furnace and by tail gas by tail gas recycle pipeline, in the first refrigerating plant 11, cooling process is carried out to tail gas, because exhaust temperature is higher, general at about 300 DEG C, therefore in order to meet technological requirement, need tentatively to lower the temperature to tail gas, specifically, in this step, exhaust temperature is down to 40 DEG C ~ 50 DEG C, preferably, in this step, exhaust temperature is down to 45 DEG C; Then, the tail gas through cooling process is delivered to the first gas-liquid separation device 21, the effect of separator is moisture contained in removing tail gas, improves the purity of tail gas, will isolate portion of water contained in tail gas in this step; Then, be delivered to dust arrester 3 by through the tail gas except water treatment, due to part dust must be mingled with in tail gas, therefore, utilize dust arrester 3 by dust removing contained in tail gas in this step, improve tail gas purity further; Then, tail gas through dust removal process is delivered to the first gas compressing apparatus 41, this step is for refrigeration step is afterwards prepared, object enables tail gas enter the second refrigerating plant 12 below smoothly, tail gas is needed to be pressurized to 6barg ~ 10barg in this step, preferably, tail gas is pressurized to 8barg; Then, the tail gas through pressurized treatment is delivered to the second gas-liquid separation device 22, second time is carried out except water treatment to tail gas; Then, be delivered to the second refrigerating plant 12 by through the tail gas except water treatment, to tail gas for refrigeration, preferably, tail gas be down to-15 DEG C; Then, the tail gas after refrigeration is delivered to the 3rd gas-liquid separation device 23, carried out except water treatment third time to tail gas; Then, by through being delivered to the second gas compressing apparatus 42 except the tail gas of water treatment, tail gas compression is to the air pressure mated with mine gas the most at last, specifically, and can by tail gas compression to 200barg ~ 300barg, preferably, by tail gas compression to 250barg; Finally, by tail gas re-injection pipeline by through lower the temperature, dewater, tail gas that dedusting, refrigeration, supercharging etc. process is recycled in down-hole oil reservoir or gas reservoir.
Claims (6)
1. off-gas recovery reinjection apparatus, is characterized in that:
Comprise the first refrigerating plant (11), the first gas-liquid separation device (21), dust arrester (3) and the first gas compressing apparatus (41) that connect in turn with gas pipeline.
2. off-gas recovery reinjection apparatus according to claim 1, is characterized in that:
Also the second gas-liquid separation device (22), the second refrigerating plant (12), the 3rd gas-liquid separation device (23) and the second gas compressing apparatus (42) that connect in turn of useful gas pipeline after described first gas compressing apparatus (41).
3. off-gas recovery reinjection apparatus according to claim 2, is characterized in that:
Described second refrigerating plant (12) is propane refrigerator, and described propane refrigerator is also communicated with methyl alcohol gas injection tank (5).
4. off-gas recovery reinjection apparatus according to claim 3, is characterized in that:
Described first gas compressing apparatus (41) and the second gas compressing apparatus (42) are helical-lobe compressor.
5. off-gas recovery reinjection apparatus according to claim 4, is characterized in that:
Described dust arrester (3) is sack cleaner.
6. off-gas recovery reinjection apparatus according to claim 5, is characterized in that:
Described first refrigerating plant (11) is air cooler.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520594646.7U CN205012979U (en) | 2015-08-07 | 2015-08-07 | Recycle equipment is retrieved to flue gas |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520594646.7U CN205012979U (en) | 2015-08-07 | 2015-08-07 | Recycle equipment is retrieved to flue gas |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205012979U true CN205012979U (en) | 2016-02-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520594646.7U Expired - Fee Related CN205012979U (en) | 2015-08-07 | 2015-08-07 | Recycle equipment is retrieved to flue gas |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205012979U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019871A (en) * | 2015-08-07 | 2015-11-04 | 四川金星清洁能源装备股份有限公司 | Flue gas recovery and reinjection process and device |
| CN109854214A (en) * | 2019-03-08 | 2019-06-07 | 江苏丰泰流体机械科技有限公司 | A kind of synchronous revolving water drainage gas production device |
| CN110630241A (en) * | 2018-06-22 | 2019-12-31 | 中国石油天然气股份有限公司 | Reinjection system for fireflood produced gas |
-
2015
- 2015-08-07 CN CN201520594646.7U patent/CN205012979U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105019871A (en) * | 2015-08-07 | 2015-11-04 | 四川金星清洁能源装备股份有限公司 | Flue gas recovery and reinjection process and device |
| CN110630241A (en) * | 2018-06-22 | 2019-12-31 | 中国石油天然气股份有限公司 | Reinjection system for fireflood produced gas |
| CN109854214A (en) * | 2019-03-08 | 2019-06-07 | 江苏丰泰流体机械科技有限公司 | A kind of synchronous revolving water drainage gas production device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160203 Termination date: 20180807 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |