Automatic recovery device for condensate water of gas process pipeline

Abstract

The utility model relates to the technical field of condensate water recovery devices, in particular to an automatic condensate water recovery device for a gas process pipeline, which comprises a liquid collecting tank, a centrifugal pump and the gas process pipeline. The upper inlet of the liquid collecting tank is communicated with the gas process pipeline through a condensate water pipeline, and the bottom outlet of the liquid collecting tank is communicated with the inlet of the centrifugal pump through an inlet pipeline; an outlet of the centrifugal pump is communicated with an outlet pipeline, a liquid level meter is arranged on the liquid collecting tank, a drainage self-control valve is connected to the condensate water pipeline in series, a sight glass is arranged at the position of the condensate water pipeline between an inlet in the upper portion of the liquid collecting tank and the drainage self-control valve, and an outlet self-control valve is connected to the outlet pipeline in series. The pressure fluctuation of the gas process pipeline is eliminated, the pressure of the gas process pipeline is kept stable, flammable, explosive, poisonous and harmful process gas can be prevented from being gathered in the process pipeline, and therefore the risks of explosion, environmental pollution and the like caused by the fact that a large amount of gathered flammable, explosive, poisonous and harmful process gas is discharged into the atmosphere are prevented.

Description

Technical Field

[0001] The utility model relates to the technical field of condensed water recovery devices, in particular to an automatic condensed water recovery device for a gas process pipeline. Background Art

[0002] When the gas process pipeline operates normally, the gas contains water vapor, which will accumulate in the pipeline after condensation. If it is not discharged in time, it will cause gas pressure fluctuations and affect normal production. For example, when flammable, explosive, toxic and harmful process gases are discharged and accumulated in large quantities, there are safety risks of ignition, flash explosion or environmental pollution due to static electricity and sparks. Therefore, this gas process pipeline condensate automatic recovery device is specially designed to ensure the safe and stable operation of the gas process production equipment. Summary of the invention

[0003] The utility model provides an automatic condensate recovery device for a gas process pipeline, which overcomes the deficiencies of the above-mentioned prior art and can effectively solve the problem of gas pressure fluctuation caused by condensate accumulation in the existing gas process gas pipeline, thereby effectively improving the safe and stable operation rate of the gas process pipeline.

[0004] The technical solution of the utility model is achieved through the following measures: an automatic recovery device for condensed water of a gas process pipeline, comprising a liquid collecting tank, a centrifugal pump and a gas process pipeline, the upper inlet of the liquid collecting tank is connected with the gas process pipeline through a condensed water pipeline, the bottom outlet of the liquid collecting tank is connected with the inlet of the centrifugal pump through an inlet pipeline, the outlet of the centrifugal pump is connected with an outlet pipeline, a liquid level gauge is arranged on the liquid collecting tank, a drainage automatic control valve is connected in series on the condensed water pipeline, a sight glass is arranged on the condensed water pipeline between the upper inlet of the liquid collecting tank and the drainage automatic control valve, and an outlet automatic control valve is connected in series on the outlet pipeline.

[0005] The following are further optimizations and / or improvements to the above utility model technical solution:

[0006] The above-mentioned drainage automatic control valve, liquid level meter and outlet automatic control valve are interlocked and controlled.

[0007] The connector for communicating the upper portion of the liquid level gauge with the liquid collecting tank may be connected in series with an upper valve, and the connector for communicating the lower portion of the liquid level gauge with the liquid collecting tank may be connected in series with a lower valve.

[0008] The bottom outlet of the above-mentioned liquid collecting tank can be located above the inlet of the centrifugal pump, and the inlet pipeline is connected in series with an inlet valve and a drain.

[0009] A pressure monitoring instrument may be fixedly installed at the outlet pipeline near the outlet side of the centrifugal pump, and an outlet valve may be connected in series at the outlet pipeline between the pressure monitoring instrument and the outlet automatic control valve.

[0010] A drain valve may be connected in series to the condensate water pipeline between the above-mentioned drain automatic control valve and the sight glass.

[0011] The utility model can automatically discharge condensed water from the gas process pipeline, thereby eliminating pressure fluctuations in the gas process pipeline, maintaining a stable pressure in the gas process pipeline, and can prevent inflammable, explosive, toxic and harmful process gases from gathering in the process pipeline, thereby preventing the gathered inflammable, explosive, toxic and harmful process gases from being discharged into the atmosphere in large quantities to generate risks of explosion, environmental pollution and the like. BRIEF DESCRIPTION OF THE DRAWINGS

[0012] Attached Figure 1 It is a schematic diagram of the process flow of the utility model.

[0013] The codes in the attached drawings are: 1 is a gas process pipeline; 2 is a liquid collecting tank; 3 is a centrifugal pump, 4 is a drain automatic control valve; 5 is a sight glass; 6 is an upper valve; 7 is a lower valve; 8 is a liquid level gauge; 9 is an inlet valve; 10 is an outlet valve; 11 is a condensate pipeline; 12 is an inlet pipeline; 13 is an outlet pipeline; 14 is a drain valve; 15 is an outlet automatic control valve; 16 is a shower; 17 is a pressure gauge. DETAILED DESCRIPTION

[0014] The present invention is not limited by the following embodiments, and specific implementation methods can be determined according to the technical solution of the present invention and actual conditions.

[0015] In the present invention, for the convenience of description, the relative position relationship of each component is described according to the attached manual. Figure 1 The layout is described in detail, such as the positional relationship of front, back, top, bottom, left, right, etc., which is based on the attached manual. Figure 1 It is determined by the layout direction.

[0016] The present invention is further described below in conjunction with the embodiments and drawings:

[0017] Embodiment 1: As attached Figure 1 As shown, the automatic recovery device for condensed water of the gas process pipeline includes a liquid collecting tank 2, a centrifugal pump 3 and a gas process pipeline 1, the upper inlet of the liquid collecting tank 2 is connected to the gas process pipeline 1 through a condensed water pipeline 11, the bottom outlet of the liquid collecting tank 2 is connected to the inlet of the centrifugal pump 3 through an inlet pipeline 12, the outlet of the centrifugal pump 3 is connected to an outlet pipeline 13, a liquid level gauge 8 is arranged on the liquid collecting tank 2, a drainage automatic control valve 4 is connected in series on the condensed water pipeline 11, a sight glass 5 is arranged on the condensed water pipeline 11 between the upper inlet of the liquid collecting tank 2 and the drainage automatic control valve 4, and an outlet automatic control valve 15 is connected in series on the outlet pipeline 13.

[0018] The device can automatically discharge condensed water from the gas process pipeline 1, thereby eliminating pressure fluctuations in the gas process pipeline 1, maintaining a stable pressure in the gas process pipeline 1, and preventing inflammable, explosive, toxic and harmful process gases from gathering in the gas process pipeline 1, thereby preventing the gathered inflammable, explosive, toxic and harmful process gases from being discharged into the atmosphere in large quantities to generate risks of explosion, environmental pollution, etc.

[0019] The above-mentioned automatic condensate recovery device for gas process pipelines can be further optimized and / or improved according to actual needs:

[0020] Embodiment 2: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, the drainage automatic control valve 4, the liquid level meter 8 and the outlet automatic control valve 15 are interlocked and controlled.

[0021] The interlocking control adopts the conventional industrial control method. For example, the drainage automatic control valve 4, the liquid level meter 8, and the outlet automatic control valve 15 can be electrically connected to a conventional industrial DCS controller, and the drainage automatic control valve 4, the liquid level meter 8, and the outlet automatic control valve 15 can be controlled by the DCS controller.

[0022] Embodiment 3: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, the connector at the upper portion of the liquid level gauge 8 communicating with the liquid collecting tank 2 is connected in series with an upper valve 6 , and the connector at the lower portion of the liquid level gauge 8 communicating with the liquid collecting tank 2 is connected in series with a lower valve 7 .

[0023] The upper valve 6 and the lower valve 7 can be manual valves.

[0024] Embodiment 4: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, the bottom outlet of the liquid collecting tank 2 is located above the inlet of the centrifugal pump 3, and the inlet pipeline 12 is connected in series with the inlet valve 9 and the drain guide 16.

[0025] The inlet of the centrifugal pump 3 is arranged below the outlet at the bottom of the liquid collecting tank 2, which can prevent the centrifugal pump 3 from evacuating the liquid level and causing air binding.

[0026] Embodiment 5: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, a pressure monitoring instrument is fixedly installed at the outlet pipeline 13 near the outlet side of the centrifugal pump 3 , and an outlet valve 10 is connected in series at the outlet pipeline 13 between the pressure monitoring instrument and the outlet automatic control valve 15 .

[0027] The pressure monitoring instrument can be a pressure gauge 17; the inlet valve 9 and the outlet valve 10 can be manual valves.

[0028] After the device is put into use once, it is only necessary to regularly clean, maintain and calibrate the centrifugal pump 3, liquid level meter 8, valve, sight glass 5, etc., without consuming a large amount of manpower for inspection and verification and multiple on-site confirmation. The device has high reliability and stable operation.

[0029] Embodiment 6: As an optimization of the above embodiment, as shown in the attached Figure 1 As shown, a drain valve 14 is connected in series at the condensate water pipeline 11 between the drain automatic control valve 4 and the sight glass 5 .

[0030] The drain valve 14 may be a manual valve.

[0031] This device has the characteristics of high reliability and low cost, mainly manifested in: first, the liquid collecting tank 2 can be located on the ground, and the personnel can pay attention to the condensate drainage situation in time through the liquid level meter 8 and the sight glass 5; second, the closed discharge and centrifugal pump 3 water recovery ensure the smooth operation of the automatic recovery of condensate.

[0032] This device collects the condensed water through closed drainage, effectively preventing the accumulation of condensed water in the gas process pipeline 1 and the impact on safe production during non-closed drainage. This recovery device is safe and reliable, and plays a role in recovering the condensed water in the gas process pipeline 1, achieving closed discharge and recycling of condensed water, eliminating pipeline pressure fluctuations, avoiding the discharge of flammable, explosive and toxic and harmful substances into the atmosphere to cause explosions and environmental pollution, reducing the safety risks of emergency response and casualties of on-duty personnel, facilitating operation, improving work efficiency, and greatly reducing the labor intensity and safety hazards of operators.

[0033] The above technical features constitute the best implementation example of the present utility model, which has strong adaptability and best implementation effect. Non-essential technical features can be added or removed according to actual needs to meet the requirements of different situations.

[0034] The use process of the best embodiment of the utility model:

[0035] Before the device is put into use, the drain valve 14 of the condensate pipeline 11 is opened, and the upper valve 6 and the lower valve 7 at the liquid level gauge 8 are opened. The condensate of the gas process pipeline 1 enters the liquid collecting tank 2 through the condensate pipeline 11. The drainage situation is observed through the sight glass 5. After the liquid level gauge 8 shows a certain liquid level, the inlet valve 9 at the inlet pipeline 12 is opened to prime the centrifugal pump 3. After the device is put into use, the drain valve 14 of the condensate pipeline 11, the upper valve 6 and the lower valve 7 at the liquid level gauge 8, the inlet valve 9 at the inlet pipeline 12 and the outlet valve 10 of the outlet pipeline 13 are in the normally open state. When the liquid collecting tank 2 When the liquid level reaches the high value of the liquid level interlock, the centrifugal pump 3 starts, and at the same time, the interlock opens the outlet automatic control valve 15 of the outlet pipeline 13 to recycle the condensed water for reuse. When the condensed water drops to the low value of the interlock, the interlock closes the outlet automatic control valve 15, and at the same time, the centrifugal pump 3 stops running, so as to achieve the closed discharge and recycling of the condensed water, thereby eliminating the pressure fluctuation of the gas process pipeline 1, maintaining a stable pressure, and preventing flammable, explosive, toxic and harmful process gases from gathering in the process pipeline, thereby preventing the gathered flammable, explosive, toxic and harmful process gases from being discharged into the atmosphere in large quantities to cause risks such as explosion and environmental pollution.

Claims

1. A gas process pipeline condensate automatic recovery device, characterized in that It includes a liquid collecting tank, a centrifugal pump and a gas process pipeline. The upper inlet of the liquid collecting tank is connected with the gas process pipeline through a condensate pipeline. The bottom outlet of the liquid collecting tank is connected with the inlet of the centrifugal pump through an inlet pipeline. The outlet of the centrifugal pump is connected with an outlet pipeline. A liquid level gauge is arranged on the liquid collecting tank. A drainage automatic control valve is connected in series on the condensate pipeline. A sight glass is arranged on the condensate pipeline between the upper inlet of the liquid collecting tank and the drainage automatic control valve. An outlet automatic control valve is connected in series on the outlet pipeline.

2. The automatic condensate recovery device for gas process pipeline according to claim 1 is characterized in that Interlock control of drainage automatic valve, liquid level gauge and outlet automatic valve.

3. The automatic condensate recovery device for gas process pipeline according to claim 1 or 2, characterized in that An upper valve is connected in series to a connector of the upper part of the liquid level gauge communicating with the liquid collecting tank, and a lower valve is connected in series to a connector of the lower part of the liquid level gauge communicating with the liquid collecting tank.

4. The automatic condensate recovery device for gas process pipeline according to claim 3 is characterized in that The bottom outlet of the liquid collecting tank is located above the inlet of the centrifugal pump, and the inlet pipeline is connected in series with an inlet valve and a drain.

5. The automatic condensate recovery device for gas process pipeline according to claim 1 or 2, characterized in that The bottom outlet of the liquid collecting tank is located above the inlet of the centrifugal pump, and the inlet pipeline is connected in series with an inlet valve and a drain.

6. The automatic condensate recovery device for gas process pipelines according to claim 1, 2 or 4, characterized in that A pressure monitoring instrument is fixedly installed on the outlet pipeline close to the outlet side of the centrifugal pump, and an outlet valve is serially connected on the outlet pipeline between the pressure monitoring instrument and the outlet automatic control valve.

7. The automatic condensate recovery device for gas process pipeline according to claim 3 is characterized in that A pressure monitoring instrument is fixedly installed on the outlet pipeline close to the outlet side of the centrifugal pump, and an outlet valve is serially connected on the outlet pipeline between the pressure monitoring instrument and the outlet automatic control valve.

8. The automatic condensate recovery device for gas process pipeline according to claim 5 is characterized in that A pressure monitoring instrument is fixedly installed on the outlet pipeline close to the outlet side of the centrifugal pump, and an outlet valve is serially connected on the outlet pipeline between the pressure monitoring instrument and the outlet automatic control valve.

9. The automatic condensate recovery device for gas process pipelines according to claim 1, 2, 4, 7 or 8, characterized in that A drain valve is connected in series on the condensate water pipeline between the drain automatic control valve and the sight glass.

10. The automatic condensate recovery device for gas process pipeline according to claim 6, characterized in that A drain valve is connected in series on the condensate water pipeline between the drain automatic control valve and the sight glass.

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