CN204042437U - A kind of torch gas suction compressor train - Google Patents
A kind of torch gas suction compressor train Download PDFInfo
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- CN204042437U CN204042437U CN201420246630.2U CN201420246630U CN204042437U CN 204042437 U CN204042437 U CN 204042437U CN 201420246630 U CN201420246630 U CN 201420246630U CN 204042437 U CN204042437 U CN 204042437U
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Abstract
The utility model belongs to liquid rotary compressor field, be specifically related to a kind of torch gas suction compressor train, comprise two liquid rotary compressors, gas-liquid separator, liquid cooler and automatic control system, automatic control system comprises DCS system, gas pressure transmitter, gas control valve, fluid level transmitter and Liquid level valve, gas pressure transmitter is separately positioned on gas piping and gas-liquid separator, gas control valve is separately positioned on tonifying Qi pipeline and gas exhaust piping, gas pressure transmitter, gas control valve, fluid level transmitter, Liquid level valve all communicates to connect with DCS system.The utility model has that flow adjustment range is large, operating cost is low, automaticity is high, energy-conserving and environment-protective, the advantage such as safe and reliable.
Description
Technical field
The utility model belongs to liquid rotary compressor field, is specifically related to a kind of torch gas suction compressor train.
Background technique
In oil refinery, a lot of station all can produce flammable tail gas, at ordinary decompression column distillation station, the gas distilled can carry out liquefaction and reclaim under the pressure being less than or equal to 0.45MPa (involved pressure all refers to absolute pressure) herein, and the inflammable gas reclaimed that can not liquefy that other each station produces is all generally guide to high-altitude by pipeline, the torch of picture point combustion equally carries out concentrated combustion, so these gases are referred to as torch gas.Flare gas composition more complicated, mainly containing carbon atom, hydrogen and hydrocarbon, belongs to inflammable, explosive, poisonous harmful gas, if concentrated combustion discharge, has both caused mass energy to waste, and can discharge again a large amount of greenhouse gases befouling environment.
Along with the requirement of country to energy-conserving and environment-protective is more and more higher, all tail gas that refines of regulation oil refinery all must reclaim.In oil refinerys all at present, general recovery method is all adopt screw compressor torch gas to be depressed into 0.7 ~ 1MPa to send into gas holder, is used as fuel and utilizes after desulfurization.Helical-lobe compressor generally adopts Oil injection cooling, and not only lubricant oil directly contacts pumped medium, causes medium pollution medium, and its flow adjustment range is little, is unsuitable for the feature that flare gas recovery system tolerance is changeable.In addition, also there is the problems such as consumption of lubricating oil is large, operating cost is high, rate of fault is high, automaticity is low all the time in helical-lobe compressor.
Model utility content
The utility model, for the deficiencies in the prior art, proposes a kind of efficient, energy-conservation torch gas suction compressor train, adopts following technical proposals:
A kind of torch gas suction compressor train, comprise two liquid rotary compressors, gas-liquid separator, liquid cooler, automatic control systems, automatic control system comprises Distributed Control System and is called for short DCS system, gas pressure transmitter, gas control valve, gas pressure transmitter is separately positioned on gas piping and gas-liquid separator, gas control valve is separately positioned on tonifying Qi pipeline and gas exhaust piping, and gas pressure transmitter and gas control valve all communicate to connect with DCS.
Particularly, train comprises the prime liquid rotary compressor, prime gas-liquid separator, rear class liquid rotary compressor and the rear class gas-liquid separator that are connected by main gas line sequential series, first gas pressure transmitter of automatic control system is arranged on main gas line, and the first gas control valve is arranged on the tonifying Qi pipeline of prime liquid rotary compressor front end; Second gas pressure transmitter is arranged on prime gas-liquid separator upper end, and the second gas control valve is arranged on the prime gas exhaust piping of connection prime liquid rotary compressor front end and prime gas-liquid separator upper end; 3rd pressure transmitter is arranged on rear class gas-liquid separator upper end, and the 3rd gas control valve is arranged on the rear class gas exhaust piping of connection rear class liquid rotary compressor front end and rear class gas-liquid separator upper end; First gas pressure transmitter, the second gas pressure transmitter, the 3rd gas pressure transmitter, the first gas control valve, the second gas control valve, the 3rd gas control valve all communicate to connect with DCS system.
Further, automatic control system also comprises fluid level transmitter and Liquid level valve, wherein the first fluid level transmitter is arranged on described prime gas-liquid separator side, first Liquid level valve is arranged on prime gas-liquid separator lower end, and the second Liquid level valve is arranged on the prime liquid line between backing condenser and prime liquid rotary compressor; Second fluid level transmitter is arranged on rear class gas-liquid separator side, and the 3rd Liquid level valve is arranged on described rear class gas-liquid separator lower end, and the 4th Liquid level valve is arranged on the rear class liquid line between rear class cooler and rear class liquid rotary compressor; First fluid level transmitter, the second fluid level transmitter, the first Liquid level valve, the second Liquid level valve, the 3rd Liquid level valve, the 4th Liquid level valve all communicate to connect with DCS system.
The utility model has that flow adjustment range is large, operating cost is low, automaticity is high, energy-conserving and environment-protective, the advantage such as safe and reliable.
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail.
Accompanying drawing explanation
Fig. 1 is the utility model system architecture schematic diagram.
Embodiment
A kind of torch gas suction compressor train, comprise two liquid rotary compressors, gas-liquid separator, liquid coolers, also comprise automatic control system, automatic control system comprises Distributed Control System and is called for short DCS system, gas pressure transmitter, gas control valve, gas pressure transmitter is separately positioned on gas piping and gas-liquid separator, gas control valve is separately positioned on tonifying Qi pipeline and gas exhaust piping, and gas pressure transmitter and gas control valve all communicate to connect with DCS.
Fig. 1 is system architecture schematic diagram of the present utility model.As shown in Figure 1, comprise the prime liquid rotary compressor 6, prime gas-liquid separator 7, rear class liquid rotary compressor 14 and the rear class gas-liquid separator 15 that are connected by main gas line 1 sequential series, first gas pressure transmitter P1 of automatic control system is arranged on main gas line 1, first gas control valve 2 is arranged on the tonifying Qi pipeline 3 of prime liquid rotary compressor 6 front end, is stabilized in setting value for maintaining inlet pressure.Second gas pressure transmitter P2 is arranged on described prime gas-liquid separator 7 upper end, second gas control valve 4 is arranged on the prime gas exhaust piping 5 of connection prime liquid rotary compressor 6 front end and prime gas-liquid separator 7 upper end, for regulating the rate of air sucked in required of prime liquid rotary compressor 6, maintaining exhaust pressure and being stabilized in setting value.3rd pressure transmitter P3 is arranged on described rear class gas-liquid separator 15 upper end, 3rd gas control valve 12 is arranged on the rear class gas exhaust piping 13 of connection rear class liquid rotary compressor 14 front end and rear class gas-liquid separator 15 upper end, for regulating the rate of air sucked in required of rear class liquid rotary compressor 14, maintaining exhaust pressure and being stabilized in setting value.First gas pressure transmitter P1, the second gas pressure transmitter P2, the 3rd gas pressure transmitter P3, the first gas control valve 2, second gas control valve 4, the 3rd gas control valve 12 all communicate to connect with DCS system.
As shown in Figure 1, automatic control system of the present utility model also comprises fluid level transmitter and Liquid level valve, wherein the first fluid level transmitter L1 is arranged on prime gas-liquid separator 7 side, first Liquid level valve 8 is arranged on prime gas-liquid separator 7 lower end, and the second Liquid level valve 11 is arranged on the prime liquid line 9 between backing condenser 10 and prime liquid rotary compressor 6; Second fluid level transmitter L2 is arranged on rear class gas-liquid separator 15 side, 3rd Liquid level valve 16 is arranged on rear class gas-liquid separator 15 lower end, and the 4th Liquid level valve 19 is arranged on the rear class liquid line 18 between rear class cooler 17 and rear class liquid rotary compressor 14; First fluid level transmitter L1, the second fluid level transmitter L2, the first Liquid level valve 8, second Liquid level valve 11, the 3rd Liquid level valve 16, the 4th Liquid level valve 19 all communicate to connect with DCS system.
DCS system by above-mentioned fluid level transmitter and Liquid level valve respectively by the Liquid level of the working solution in described prime gas-liquid separator 7 and rear class gas-liquid separator 15 at horizontal centre line position.Fluid level transmitter can adopt magnetic flap level gauge, measures liquid level by the movement of magnetic float, also can adopt two flange liquid level transmission device, measure liquid level by pressure reduction.
The working procedure of torch gas suction series connection compression system of the present utility model is as follows:
The torch gas of normal temperature and pressure is first forced into 0.3 ~ 0.6MPa through prime liquid rotary compressor 6, torch gas after pressurization enters prime gas-liquid separator 7 together with the working solution after heating up, after carrying out gas-liquid separation, torch gas enters after rear class liquid rotary compressor 14 is forced into 0.6 ~ 1.2MPa further and enter rear class gas-liquid separator 15 together with working solution, after carrying out gas-liquid separation, be sent to next step manufacturing procedure.Meanwhile, enter the working solution in prime gas-liquid separator 7, enter through prime liquid line 9 and reenter prime liquid rotary compressor 6 after backing condenser 10 is cooled to normal temperature and recycle; Enter the working solution in rear class gas-liquid separator 15, enter through rear class liquid line 18 and reenter rear class liquid rotary compressor 14 after rear class cooler 17 is cooled to normal temperature and recycle.
When air supply system, to carry out tolerance less, when the inlet pressure of prime liquid rotary compressor 6 is lower than setting normal pressure value 0.1MPa, the first gas pressure transmitter P1 transmission of signal on the main gas line 1 of prime liquid rotary compressor 6 front end is to DCS system, DCS system makes the first gas control valve 2 open to carry out tonifying Qi, until the inlet pressure of prime liquid rotary compressor 6 reaches normal pressure, then make this valve closing.
When the outlet pressure of prime liquid rotary compressor 6 departs from setting value (being generally 0.3 ~ 0.6MPa), the second gas pressure transmitter P2 transmission of signal on prime gas-liquid separator 7 is to DCS system, DCS system makes the second gas control valve 4 on prime gas exhaust piping 5 open to carry out tonifying Qi, regulate the rate of air sucked in required of prime liquid rotary compressor 6, to ensure that it is in optimum compression ratio (optimum compression ratio of prime liquid rotary compressor is between 1:3 ~ 1:6), until reach the exit pressure levels of setting, then make this valve closing.
When the outlet pressure of rear class liquid rotary compressor 14 departs from setting value (being generally 0.7 ~ 1.2MPa), the 3rd pressure transmitter P3 transmission of signal on rear class gas-liquid separator 15 is to DCS system, DCS system makes the 3rd gas control valve 12 on rear class gas exhaust piping 13 open to carry out tonifying Qi, regulate the rate of air sucked in required of rear class liquid rotary compressor 14, to ensure that it is in optimum compression ratio (optimum compression ratio of rear class liquid rotary compressor is between 1:2 ~ 1:4), until reach the exit pressure levels of setting, then make this valve closing.
As the 50mm above higher than separator level center line of the liquid level in prime gas-liquid separator 7, first fluid level transmitter L1 transmission of signal is to DCS system, DCS system makes the first Liquid level valve 8 open to carry out discharge opeing, until liquid level is down to separator level position of center line, then make this valve closing; When liquid level in prime gas-liquid separator 7 is lower than below separator level center line during 50mm, first fluid level transmitter L1 transmission of signal is to DCS system, DCS system makes the second Liquid level valve 11 open to carry out fluid infusion, until liquid level rises to separator level position of center line, then make this valve closing.
As the 50mm above higher than separator device center line of the liquid level in rear class gas-liquid separator 15, second fluid level transmitter L2 transmission of signal is to DCS system, DCS system makes the 3rd Liquid level valve 16 open to carry out discharge opeing, until liquid level is down to separator level position of center line, then make this valve closing; When liquid level in rear class gas-liquid separator 15 is lower than below separator level center line during 50mm, second fluid level transmitter L2 transmission of signal is to DCS system, DCS system makes the 4th Liquid level valve 19 open to carry out fluid infusion, until liquid level rises to separator level position of center line, then make this valve closing.
The utility model has that gas flow regulation range is large, operating cost is low, automaticity is high, energy-conserving and environment-protective, the advantage such as safe and reliable, significantly can reduce enterprise energy consumption, improve working environment, increase work efficiency.
Although embodiment has been described in detail the utility model, those of ordinary skill in the art should be appreciated that and still can modify to the technical solution of the utility model and be equal to replacement, and it all should be encompassed in the middle of right of the present utility model.
Claims (3)
1. a torch gas suction compressor train, comprise two liquid rotary compressors, gas-liquid separator, liquid coolers, it is characterized in that, also comprise automatic control system, described automatic control system comprises Distributed Control System and is called for short DCS system, gas pressure transmitter, gas control valve, described gas pressure transmitter is separately positioned on gas piping and gas-liquid separator, described gas control valve is separately positioned on tonifying Qi pipeline and gas exhaust piping, and described gas pressure transmitter and gas control valve all communicate to connect with DCS.
2. torch gas suction compressor train according to claim 1, it is characterized in that, comprise the prime liquid rotary compressor (6), prime gas-liquid separator (7), rear class liquid rotary compressor (14) and the rear class gas-liquid separator (15) that are connected by main gas line 1 sequential series, first gas pressure transmitter (P1) of described automatic control system is arranged on main gas line (1), and the first gas control valve (2) is arranged on the tonifying Qi pipeline (3) of prime liquid rotary compressor (6) front end; Second gas pressure transmitter (P2) is arranged on described prime gas-liquid separator (7) upper end, and the second gas control valve (4) is arranged on the prime gas exhaust piping (5) of connection prime liquid rotary compressor (6) front end and prime gas-liquid separator (7) upper end; 3rd pressure transmitter (P3) is arranged on described rear class gas-liquid separator (15) upper end, and the 3rd gas control valve (12) is arranged on the rear class gas exhaust piping (13) of connection rear class liquid rotary compressor (14) front end and rear class gas-liquid separator (15) upper end; Described first gas pressure transmitter (P1), the second gas pressure transmitter (P2), the 3rd gas pressure transmitter (P3), the first gas control valve (2), the second gas control valve (4), the 3rd gas control valve (12) all communicate to connect with described DCS system.
3. torch gas suction compressor train according to claim 2, it is characterized in that, described automatic control system also comprises fluid level transmitter and Liquid level valve, wherein the first fluid level transmitter (L1) is arranged on described prime gas-liquid separator (7) side, first Liquid level valve (8) is arranged on described prime gas-liquid separator (7) lower end, and the second Liquid level valve (11) is arranged on the prime liquid line (9) between backing condenser (10) and prime liquid rotary compressor (6); Second fluid level transmitter (L2) is arranged on described rear class gas-liquid separator (15) side, 3rd Liquid level valve (16) is arranged on described rear class gas-liquid separator (15) lower end, and the 4th Liquid level valve (19) is arranged on the rear class liquid line (18) between rear class cooler (17) and rear class liquid rotary compressor (14); Described the first fluid level transmitter (L1), the second fluid level transmitter (L2), the first Liquid level valve (8), the second Liquid level valve (11), the 3rd Liquid level valve (16), the 4th Liquid level valve (19) all communicate to connect with described DCS system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246630.2U CN204042437U (en) | 2014-05-14 | 2014-05-14 | A kind of torch gas suction compressor train |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420246630.2U CN204042437U (en) | 2014-05-14 | 2014-05-14 | A kind of torch gas suction compressor train |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204042437U true CN204042437U (en) | 2014-12-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420246630.2U Withdrawn - After Issue CN204042437U (en) | 2014-05-14 | 2014-05-14 | A kind of torch gas suction compressor train |
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| Country | Link |
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| CN (1) | CN204042437U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019358A (en) * | 2014-05-14 | 2014-09-03 | 广东省佛山水泵厂有限公司 | Flare gas suction compressor series system |
-
2014
- 2014-05-14 CN CN201420246630.2U patent/CN204042437U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104019358A (en) * | 2014-05-14 | 2014-09-03 | 广东省佛山水泵厂有限公司 | Flare gas suction compressor series system |
| CN104019358B (en) * | 2014-05-14 | 2016-08-17 | 广东肯富来泵业股份有限公司 | A kind of torch gas suction compressor train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP01 | Change in the name or title of a patent holder |
Address after: 528000 Guangdong Province, Foshan city Chancheng District River Road No. 14 Patentee after: GUANGDONG KENFLO PUMP CO., LTD. Address before: 528000 Guangdong Province, Foshan city Chancheng District River Road No. 14 Patentee before: Guangdong Foshan Water Pump Factory Co., Ltd. |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20141224 Effective date of abandoning: 20160817 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |