CN215665124U - Automatic blowdown system of separator - Google Patents
Automatic blowdown system of separator Download PDFInfo
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- CN215665124U CN215665124U CN202122186194.7U CN202122186194U CN215665124U CN 215665124 U CN215665124 U CN 215665124U CN 202122186194 U CN202122186194 U CN 202122186194U CN 215665124 U CN215665124 U CN 215665124U
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Abstract
The utility model relates to an automatic blowdown system of a separator, which comprises the separator and a blowdown tank, wherein the separator comprises a blowdown outlet and an air inlet, the blowdown tank comprises a liquid inlet, a blowdown outlet, an air inlet and an air outlet, a first control valve is arranged between the blowdown outlet and the liquid inlet, a second control valve is arranged between the air inlet and the air outlet, the air inlet is connected with external high-pressure gas through a third control valve, and a fourth control valve is arranged at the blowdown outlet; and a liquid level controller is arranged on the sewage draining tank and controls the opening and closing actions of the first control valve, the second control valve, the third control valve and the fourth control valve according to the liquid level height in the sewage draining tank. The utility model realizes the automatic pollution discharge of low-pressure liquid in the separator by matching the mechanical controller and the control valve, reduces the use of other electrical parts, has simple structure, automatically discharges the pollution, reduces the cost, and is safe and reliable.
Description
Technical Field
The utility model relates to an automatic separator blowdown system, and belongs to the technical field of separator blowdown.
Background
The reciprocating compressor is very sensitive to liquid impact due to the characteristics of the reciprocating compressor, if liquid drops are contained in gas, the gas is easily damaged under the high-speed impact of a piston after entering a cylinder, therefore, separators are often added at the upstream of the compressor and behind each intercooler to separate the liquid drops in the gas through the separators. How to ensure that the dirty liquid in the separator is discharged in time plays an important role in the operation of the whole system.
The conventional separator sewage discharge system realizes automatic sewage discharge through a sewage discharge valve controller, a sewage discharge valve or a control valve, sewage in the separator flows into the sewage discharge system through a sewage discharge pipe, but the pressure in the separator is lower than the backpressure of the sewage discharge system under the low-pressure working condition, under the condition, the sewage cannot be discharged by the conventional sewage discharge system at all, and a set of pressure sewage discharge system is required to be arranged outside.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model provides the automatic separator blowdown system which has the advantages of simple structure, low cost, low energy and automatic blowdown, is safer and more reliable and discharges low-pressure liquid in the gas inlet separator.
The technical scheme for solving the technical problems is as follows: an automatic separator blowdown system comprises a separator and a blowdown tank, wherein the separator comprises a blowdown outlet and an air inlet, the blowdown tank comprises a liquid inlet, a blowdown outlet, an air inlet and an air outlet, the blowdown outlet is connected with the liquid inlet through a low-pressure blowdown pipeline, a first control valve is arranged on the low-pressure blowdown pipeline, the air inlet is connected with the air outlet through a flat pressure pipeline, a second control valve is arranged on the flat pressure pipeline, the air inlet is connected with external high-pressure gas through a purge pipeline, a third control valve is arranged on the purge pipeline, and a fourth control valve is arranged at the blowdown outlet;
and a liquid level controller is arranged on the sewage draining tank and controls the opening and closing actions of the first control valve, the second control valve, the third control valve and the fourth control valve according to the liquid level height in the sewage draining tank.
The utility model has the beneficial effects that: the low-pressure separator provides a scheme of high-pressure blowing and discharging, realizes the characteristic that automatic discharging passes through system control, divides the first to fourth control valves into two types of gas-loss opening and gas-loss closing valves, utilizes an instrument air source as power, uses mechanical control for a liquid level controller, a control valve and the like, cancels electrical configuration, realizes automatic switching of the valve opening and closing, realizes automatic discharging of low-pressure liquid in the separator through the matching of the mechanical controller and the control valve, reduces the use of other electrical components, and has the advantages of simple structure, automatic discharging, cost reduction, safety and reliability. The independent blowdown tank is arranged, the design of the independent blowdown tank is not affected by the size of the separator, the volume can be set freely according to application working conditions, and then the drainage gap is controlled, meanwhile, the design pressure of the blowdown tank can be determined according to the pressure of a downstream purging pipeline without considering the pressure of the separator, the height difference between the blowdown tank and the separator can be set freely, and then the accumulated liquid of the separator is discharged smoothly.
On the basis of the technical scheme, the utility model can be further improved as follows.
Further, the first control valve and the second control valve are normally open valves, and the third control valve and the fourth control valve are normally closed valves.
The further scheme has the advantages that the first control valve and the second control valve are communicated under the natural condition of no power on or no action; the third control valve and the fourth control valve are closed under the natural condition of no electricity or no action.
Furthermore, the first control valve, the second control valve, the third control valve and the fourth control valve are pneumatic control valves, and the liquid level controller controls the first control valve, the second control valve, the third control valve and the fourth control valve to open and close through instrument air.
The beneficial effect who adopts above-mentioned further scheme is that, through the cooperation that sets up the automatic blowdown controller of mechanical type and pneumatic control valve, realize the full-automatic blowdown of mechanical type separator, not only solve the problem of separator low pressure liquid blowdown, still avoided explosion-proof electrical component's use simultaneously, control flow simplifies.
Furthermore, a high-pressure sewage discharge pipeline is arranged at the sewage discharge port, and the fourth control valve is arranged on the high-pressure sewage discharge pipeline.
The further scheme has the advantages that the sewage draining tank temporarily gathers the liquid discharged from the separator, when the liquid level in the sewage draining tank rises to the opening point of the liquid level controller, the third control valve and the fourth control valve can be opened to drain by taking the instrument air source as power, and the liquid flows into a sewage draining system by using the high-pressure sewage draining pipeline.
Further, the liquid level controller is connected with the first control valve, the second control valve, the third control valve and the fourth control valve through instrument air pipelines.
The beneficial effect of adopting above-mentioned further scheme is that, utilize instrument wind air supply as power, realize the on-off control to first control valve to fourth control valve, cancel electrical configuration and utilize mechanical control, safe and reliable more.
Drawings
FIG. 1 is a schematic structural view of the present invention;
in the figure, 1, a sewage tank; 2. a liquid level controller; 3. a second control valve; 4. a first control valve; 5. a third control valve; 6. a fourth control valve; 7. flattening the pipeline; 8. a low pressure blowdown line; 9. purging the pipeline; 10. a high pressure blowdown line; 11. an instrument air line.
Detailed Description
The principles and features of this invention are described below in conjunction with examples, which are set forth to illustrate, but are not to be construed to limit the scope of the utility model.
As shown in fig. 1, an automatic separator blowdown system comprises a separator and a blowdown tank 1, wherein the separator comprises a blowdown outlet and an air inlet, the blowdown tank 1 comprises a liquid inlet, a blowdown outlet, an air inlet and an air outlet, the blowdown outlet is connected with the liquid inlet through a low-pressure blowdown pipeline 8, a first control valve 4 is arranged on the low-pressure blowdown pipeline 8, the air inlet is connected with the air outlet through a flat pressure pipeline 7, a second control valve 3 is arranged on the flat pressure pipeline 7, the air inlet is connected with external high-pressure gas through a purge pipeline 9, a third control valve 5 is arranged on the purge pipeline 9, and a fourth control valve 6 is arranged at the blowdown outlet; the sewage tank 1 is provided with a liquid level controller 2, and the liquid level controller 2 can control the opening and closing actions of the first control valve 4, the second control valve 3, the third control valve 5 and the fourth control valve 6 according to the liquid level height in the sewage tank 1.
Compared with the existing blowdown system integrated to the separator, the blowdown device is provided with an independent blowdown tank, and the application range is wider. The design pressure of the blow-down tank can be determined according to the pressure of a downstream blowing pipeline without considering the pressure of the separator, the height difference between the blow-down tank and the separator can be freely set, and the accumulated liquid of the separator can be smoothly discharged.
The first control valve 4 and the second control valve 3 are normally open valves, and the third control valve 5 and the fourth control valve 6 are normally closed valves. The first control valve 4 and the second control valve 3 are in a valve state under the natural condition of no power on or no action; the third control valve 5 and the fourth control valve 6 are closed in the natural condition of no power on or no action.
The first control valve 4, the second control valve 3, the third control valve 5 and the fourth control valve 6 are pneumatic control valves, and the liquid level controller 2 controls the first control valve, the second control valve, the third control valve and the fourth control valve to open and close through instrument air. Through the cooperation of setting up the automatic blowdown controller of mechanical type and pneumatic control valve, realize the full-automatic blowdown of mechanical type separator, not only solve the problem of separator low pressure liquid blowdown, still avoided explosion-proof electrical component's use simultaneously, control flow simplifies.
A high-pressure sewage draining pipeline 10 is arranged at the sewage draining port, and the fourth control valve 6 is arranged on the high-pressure sewage draining pipeline 10. The blowdown tank 1 temporarily gathers the liquid discharged from the separator, and when the liquid level in the blowdown tank 1 rises to the opening point of the liquid level controller 2, the third control valve 5 and the fourth control valve 6 can be opened to carry out blowdown by taking an instrument air source as power, and the liquid flows into a blowdown system by using the high-pressure blowdown pipeline 10.
The liquid level controller 2 is connected with the first control valve 4, the second control valve 3, the third control valve 5 and the fourth control valve 6 through an instrument air pipeline 11. The instrument air source is used as power, the on-off control of the first control valve 4 to the fourth control valve 6 is realized, the electrical configuration is cancelled, the mechanical control is utilized, and the safety and the reliability are higher.
The sewage system has two states: liquid collecting state and sewage discharging state
1) Liquid collection state: the liquid level controller 2 is in the closed state, and the instrument air is cut off, and the valve of first control valve 4 and second control valve 3 is opened, and the valve of 5 and fourth control valve 6 is closed in the third control, when the separator appeared liquid, because action of gravity and communicating vessel principle, liquid in the separator can flow into blowdown jar 1 through low pressure blowdown pipeline 8, and gas in the blowdown jar 1 can be by flat pressure pipeline 7 flow into the separator, and liquid can constantly gather in the blowdown jar.
2) And (3) pollution discharge state: when the liquid level in the sewage tank rises to the opening point of the liquid level controller 2, instrument air flows into the pneumatic control mechanisms of the four valves, namely the first control valve 4, the second control valve 3, the third control valve 5 and the fourth control valve 6 through the liquid level controller 2 and the instrument air pipeline 11, the valves of the second control valve 3 and the first control valve 4 are closed, and the valves of the third control valve 5 and the fourth control valve 6 are opened. At the moment, high-pressure gas can flow into the sewage tank 1 through the purging pipeline 9, so that the pressure in the sewage tank 1 is increased, and when the pressure is greater than the back pressure of the sewage system, sewage liquid can flow into the sewage system through the high-pressure sewage pipeline 10 to finish sewage disposal. When the liquid level in the sewage tank is reduced to the closing point of the liquid level controller 2, the air of the instrument is cut off, the valves of the first to fourth control valves are restored to the initial state, and the whole system enters the liquid collection state again.
The blowdown system is of a pure mechanical control structure and is controlled by a liquid level controller, wherein the second control valve 3 and the first control valve 4 are in a gas loss opening state, the third control valve 5 and the fourth control valve 6 are in a gas loss closing state, when the liquid level controller is closed, instrument air does not exist, the second control valve 3 and the first control valve 4 are opened, the third control valve 5 and the fourth control valve 6 are closed, when the liquid level controller is opened, the instrument air is filled into an instrument air pipeline 11, the second control valve 3 and the first control valve 4 are closed, the third control valve 5 and the fourth control valve 6 are opened, automatic valve switching is achieved, and therefore automatic switching between a liquid collection state and a blowdown state is achieved.
The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents, improvements and the like that fall within the spirit and principle of the present invention are intended to be included therein.
Claims (5)
1. An automatic separator blowdown system comprises a separator and is characterized by further comprising a blowdown tank (1), wherein the separator comprises a blowdown outlet and an air inlet, the blowdown tank comprises a liquid inlet, a blowdown outlet, an air inlet and an air outlet, the blowdown outlet is connected with the liquid inlet through a first control valve (4), the air inlet is connected with the air outlet through a second control valve (3), the air inlet is connected with external high-pressure gas through a third control valve (5), and a fourth control valve (6) is arranged at the blowdown outlet;
and a liquid level controller (2) is arranged on the sewage draining tank and controls the opening and closing actions of the first control valve (4), the second control valve (3), the third control valve (5) and the fourth control valve (6) according to the liquid level height in the sewage draining tank.
2. The separator automatic blowdown system according to claim 1, wherein the first and second control valves (4, 3) are normally open valves, and the third and fourth control valves (5, 6) are normally closed valves.
3. The separator automatic blowdown system according to claim 1, wherein the first control valve (4), the second control valve (3), the third control valve (5) and the fourth control valve (6) employ pneumatic control valves, and the liquid level controller controls opening and closing of the first, second, third and fourth control valves through meter air.
4. The separator automatic blowdown system according to claim 1, 2 or 3, wherein a high pressure blowdown line (10) is provided at the blowdown port, and the fourth control valve (6) is provided on the high pressure blowdown line (10).
5. The separator automatic blowdown system according to claim 1, wherein the level controller is connected with the first, second, third and fourth control valves (4, 3, 5, 6) through an instrument air line (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122186194.7U CN215665124U (en) | 2021-09-10 | 2021-09-10 | Automatic blowdown system of separator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122186194.7U CN215665124U (en) | 2021-09-10 | 2021-09-10 | Automatic blowdown system of separator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215665124U true CN215665124U (en) | 2022-01-28 |
Family
ID=79962125
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122186194.7U Active CN215665124U (en) | 2021-09-10 | 2021-09-10 | Automatic blowdown system of separator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215665124U (en) |
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2021
- 2021-09-10 CN CN202122186194.7U patent/CN215665124U/en active Active
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