Discharged steam condensate recovery device of multi-component feed gas conversion hydrogen production device

Abstract

The utility model relates to a multi-component feed gas conversion hydrogen production device discharged steam condensate recovery device which comprises a water collection tank, the side wall of the water collection tank is fixedly connected with a steam condensate input main pipeline, one end of the steam condensate input main pipeline is connected with a first steam input pipeline, and a first steam trap is installed on the first steam input pipeline. A water collecting tank inlet valve is mounted on the steam condensate input main pipeline; the side wall of the water collecting tank is fixedly connected with a steam condensate output pipeline, one end of the steam condensate output pipeline is connected with a mechanical power pump, the side wall of the mechanical power pump is connected with a first water outlet pipe, one end of the first water outlet pipe is connected with a steam condensate water cooler, the steam condensate water cooler is connected with a second water outlet pipe, and one end of the second water outlet pipe is connected with a deaerator. The steam condensate recycling device has the advantages of being more reasonable in structural design, low in machining and manufacturing cost, easy to operate, safe, reliable, capable of prolonging the service life of a pipeline, capable of recycling steam condensate, energy-saving, environment-friendly and capable of preventing environmental pollution.

Description

Technical Field

[0001] The utility model relates to the technical field of chemical recovery equipment, in particular to a recovery device for the external discharged steam condensate of a hydrogen production device for converting multi-component raw material gas. Background Technique

[0002] At present, most hydrogen production devices in domestic refineries adopt the hydrocarbon steam reforming process to produce hydrogen, but the hydrogen production raw materials are mostly single media, which can generally be divided into two categories: gaseous hydrocarbons and liquid hydrocarbons. The gaseous hydrocarbons mainly include natural gas, oilfield gas, biogas, hydrogenation dry gas, reforming dry gas, catalytic dry gas, and aromatization dry gas, etc.; the liquid hydrocarbons mainly include straight-run naphtha, hydrogenated light naphtha, raffinate oil and topped oil produced by reforming units, and saturated liquefied petroleum gas produced by hydrogenation units, etc.

[0003] In the process of converting multi-component raw materials to produce hydrogen, there is a phenomenon of continuous or intermittent direct external discharge of steam condensate. Because it involves a high-pressure steam system of 3.5 Mpa, when the steam condensate is discharged, not only energy is wasted and the noise is relatively large, but also the discharged steam condensate seriously pollutes the surrounding equipment and facilities.

[0004] Therefore, a special recovery device is needed to solve the above technical problems. Content of the Utility Model

[0005] The purpose of the utility model is to provide a recovery device for the external discharged steam condensate of a hydrogen production device for converting multi-component raw material gas, which has a more reasonable structural design, low processing and manufacturing cost, is easy to operate, safe and reliable, prolongs the service life of pipelines, recovers and utilizes steam condensate, saves energy and protects the environment, and prevents environmental pollution.

[0006] A recovery device for the external discharged steam condensate of a hydrogen production device for converting multi-component raw material gas of the utility model includes a water collection tank. A total steam condensate input pipeline is fixedly connected to the side wall of the water collection tank. One end of the total steam condensate input pipeline is connected to a first steam input pipeline, and a first steam trap is installed on the first steam input pipeline. A water collection tank inlet valve is installed on the total steam condensate input pipeline; a steam condensate output pipeline is fixedly connected to the side wall of the water collection tank. One end of the steam condensate output pipeline is connected to a mechanical power pump, a first water outlet pipe is connected to the side wall of the mechanical power pump, one end of the first water outlet pipe is connected to a steam condensate water cooler, the steam condensate water cooler is connected to a second water outlet pipe, and one end of the second water outlet pipe is connected to a deaerator.

[0007] A mechanical power pump inlet valve is installed on the steam condensate output pipeline; a mechanical power pump outlet valve is installed on the first water outlet pipe; a steam condensate outlet device boundary valve is installed on the second water outlet pipe.

[0008] The first steam input pipeline is set up to input the steam discharged from the multi-component raw gas conversion hydrogen production device into the water collection tank for recovery and cooling treatment at the same time. The first steam trap is used to regulate the steam flow. After the inlet valve of the mechanical power pump is opened, the cooled steam condensate is pumped by the mechanical power pump into the steam condensate water cooler through the steam condensate output pipeline and enters the steam condensate water cooler through the first outlet pipe for further cooling. The temperature of the cooled steam condensate is 40°C, which avoids the water hammer phenomenon in the first outlet pipe, is safe and reliable in use, and is sent into the deaerator through the second outlet pipe to remove the oxygen and other gases in the steam condensate and ensure the quality of the secondary utilization water; reduce the cost of treating steam condensate, thereby reducing the hydrogen production cost, and at the same time solve the problems of energy waste, large noise, and serious pollution of the surrounding equipment and facilities by the discharged steam condensate. It is safe and reliable in use, convenient to operate, energy-saving and environment-friendly, effectively protects the environment, promotes the secondary recovery and utilization of steam, and saves costs.

[0009] The end of the total steam condensate input pipeline is connected with a second steam input pipeline, and a second steam trap is installed on the second steam input pipeline.

[0010] The end of the total steam condensate input pipeline is connected with a third steam input pipeline, and a third steam trap is installed on the third steam input pipeline.

[0011] The second steam input pipeline and the third steam input pipeline are set up to transport the steam discharged from the multi-component raw gas conversion hydrogen production device into the water collection tank through the second steam input pipeline and the third steam input pipeline. Multi-pipeline transportation improves the steam recovery efficiency. When other pipelines fail, it can ensure the normal recovery of steam, ensure the normal operation of the entire recovery device, and improve the reliability of use.

[0012] A power steam inlet pipeline is connected to the mechanical power pump, and a power steam control valve is installed on the power steam inlet pipeline.

[0013] The power steam inlet pipeline is set up to transport power steam into the mechanical power pump to ensure the normal operation of the mechanical power pump. The mechanical power pump uses power steam as the driving source, replacing electric energy, changing the problem that the previous pump needs electric energy for driving, is more energy-saving and environment-friendly, and ensures the normal operation of the entire device.

[0014] 1) The first steam input pipeline is set up to input the steam discharged from the multi-component raw gas conversion hydrogen production device into the water collection tank for recovery, and at the same time, cooling treatment is carried out. The first steam trap is used to adjust the steam flow rate; when the inlet valve of the mechanical power pump is opened, the cooled steam condensate is pumped into the steam condensate water cooler by the mechanical power pump through the steam condensate output pipeline, enters the steam condensate water cooler through the first outlet pipe, and is cooled again. The temperature of the cooled steam condensate is 40°C, which avoids the water hammer phenomenon in the first outlet pipe, is safe and reliable in use, is sent into the deaerator through the second outlet pipe, can remove the oxygen and other gases in the steam condensate, and ensures the quality of the secondary utilization water; reduces the cost of treating steam condensate, thereby reducing the hydrogen production cost, and at the same time solves the problems of energy waste, high noise, and serious pollution of the surrounding equipment and facilities by the discharged steam condensate, is safe and reliable in use, convenient to operate, energy-saving and environmental-friendly, effectively protects the environment, promotes the secondary recovery and utilization of steam, and saves costs.

[0015] 2) The second steam input pipeline and the third steam input pipeline are set up to transport the steam discharged from the multi-component raw gas conversion hydrogen production device into the water collection tank through the second steam input pipeline and the third steam input pipeline. Multi-pipeline transportation improves the steam recovery efficiency. When other pipelines fail, the normal recovery of steam can be ensured, the normal operation of the entire recovery device is guaranteed, and the reliability of use is improved.

[0016] 3) The power steam inlet pipeline is set up to transport power steam into the mechanical power pump to ensure the normal operation of the mechanical power pump. The mechanical power pump uses power steam as the driving source, replacing electric energy, changing the problem that the previous pump needs electric energy for driving, is more energy-saving and environmental-friendly, and ensures the normal operation of the entire device.

[0017] 4) The device has a more reasonable structural design, low processing and manufacturing cost, is easy to operate, safe and reliable, prolongs the service life of the pipeline, recovers and utilizes steam condensate, is energy-saving and environmental-friendly, prevents environmental pollution, and can fully solve the problem of the recovery and utilization of the steam condensate discharged from the multi-component raw gas conversion hydrogen production device. Brief Description of the Drawings

[0018] Figure 1 It is a structural schematic diagram of the present utility model.

[0019] In the figure: the first steam input pipeline 1, the first steam trap 2, the second steam input pipeline 3, the second steam trap 4, the third steam input pipeline 5, the third steam trap 6, the total steam condensate input pipeline 7, the water collection tank 9, the steam condensate output pipeline 10, the mechanical power pump inlet valve 11, the power steam inlet pipeline 12, the power steam control valve 13, the mechanical power pump 14, the steam condensate water cooler 16, the steam condensate out-of-plant boundary valve 17, the deaerator 18, the first outlet pipe 19, the second outlet pipe 20. Detailed implementation mode

[0020] Embodiment 1.

[0021] The present utility model will be further described below in conjunction with the accompanying drawings.

[0022] The present utility model includes a first steam input pipeline 1, a first steam trap 2, a total steam condensate input pipeline 7, a water collection tank 9, a steam condensate output pipeline 10, a mechanical power pump inlet valve 11, a motive steam inlet pipeline 12, a motive steam control valve 13, a mechanical power pump 14, a steam condensate water cooler 16, a steam condensate outlet device boundary valve 17, a deaerator 18, a first water outlet pipe 19, and a second water outlet pipe 20. The specific structure includes a water collection tank 9. The side wall of the water collection tank 9 is fixedly connected to the total steam condensate input pipeline 7. One end of the total steam condensate input pipeline 7 is connected to a first steam input pipeline 1. A first steam trap 2 is installed on the first steam input pipeline 1. A water collection tank inlet valve 8 is installed on the total steam condensate input pipeline 7. The side wall of the water collection tank 9 is fixedly connected to a steam condensate output pipeline 10. One end of the steam condensate output pipeline 10 is connected to a mechanical power pump 14. The side wall of the mechanical power pump 14 is connected to a first water outlet pipe 19. One end of the first water outlet pipe 19 is connected to a steam condensate water cooler 16. The steam condensate water cooler 16 is connected to a second water outlet pipe 20. One end of the second water outlet pipe 20 is connected to a deaerator 18.

[0023] A mechanical power pump inlet valve 11 is installed on the steam condensate output pipeline 10; a mechanical power pump outlet valve 15 is installed on the first water outlet pipe 19; a steam condensate outlet device boundary valve 17 is installed on the second water outlet pipe 20.

[0024] A motive steam inlet pipeline 12 is connected to the mechanical power pump 14. A motive steam control valve 13 is installed on the motive steam inlet pipeline 12.

[0025] 3.5 Mpa steam is input into the first steam input pipeline 1; 1.0 Mpa motive steam is input into the motive steam inlet pipeline 12.

[0026] Usage method: Connect the first steam input pipeline 1 to the exhaust outlet of the multi-component raw gas conversion hydrogen production device. The externally discharged steam is input into the water collection tank 9 for recovery, and at the same time, temperature reduction treatment is carried out. The first steam trap 2 is used to adjust the steam flow rate; when the mechanical power pump inlet valve 11 is opened, the cooled steam condensate is pumped into the steam condensate water cooler 16 by the mechanical power pump 14 through the steam condensate output pipeline 10, and enters the steam condensate water cooler 16 through the first water outlet pipe 19 for cooling again. The temperature of the cooled steam condensate is 40 °C, which avoids the water hammer phenomenon of the first water outlet pipe 19, and is safe and reliable in use. It is sent into the deaerator 18 through the second water outlet pipe 20, and the oxygen and other gases in the steam condensate can be removed to ensure the quality of the secondary utilization water.

[0027] Embodiment 2.

[0028] The utility model includes a first steam input pipeline 1, a first steam trap 2, a second steam input pipeline 3, a second steam trap 4, a third steam input pipeline 5, a third steam trap 6, a total steam condensate input pipeline 7, a water collection tank 9, a steam condensate output pipeline 10, a mechanical power pump inlet valve 11, a power steam inlet pipeline 12, a power steam control valve 13, a mechanical power pump 14, a steam condensate water cooler 16, a steam condensate out-of-plant boundary valve 17, a deaerator 18, a first water outlet pipe 19, and a second water outlet pipe 20. The specific structure includes a water collection tank 9. The side wall of the water collection tank 9 is fixedly connected with a total steam condensate input pipeline 7. One end of the total steam condensate input pipeline 7 is connected with a first steam input pipeline 1, and a first steam trap 2 is installed on the first steam input pipeline 1. A water collection tank inlet valve 8 is installed on the total steam condensate input pipeline 7; the side wall of the water collection tank 9 is fixedly connected with a steam condensate output pipeline 10. One end of the steam condensate output pipeline 10 is connected with a mechanical power pump 14. The side wall of the mechanical power pump 14 is connected with a first water outlet pipe 19. One end of the first water outlet pipe 19 is connected with a steam condensate water cooler 16, and the steam condensate water cooler 16 is connected with a second water outlet pipe 20. One end of the second water outlet pipe 20 is connected with a deaerator 18.

[0029] A mechanical power pump inlet valve 11 is installed on the steam condensate output pipeline 10; a mechanical power pump outlet valve 15 is installed on the first water outlet pipe 19; a steam condensate out-of-plant boundary valve 17 is installed on the second water outlet pipe 20.

[0030] The end of the total steam condensate input pipeline 7 is connected with a second steam input pipeline 3, and a second steam trap 4 is installed on the second steam input pipeline 3.

[0031] The end of the total steam condensate input pipeline 7 is connected with a third steam input pipeline 5, and a third steam trap 6 is installed on the third steam input pipeline 5.

[0032] A power steam inlet pipe 12 is connected to the mechanical power pump 14, and a power steam control valve 13 is installed on the power steam inlet pipe 12.

[0033] 3.5 Mpa steam is input into the first steam input pipeline 1; 3.5 Mpa steam is input into the second steam input pipeline 3; 1.0 Mpa steam is input into the third steam input pipeline 5; 1.0 Mpa power steam is input into the power steam inlet pipe 12.

[0034] Usage method: Connect the first steam input pipeline 1 or the second steam input pipeline 3 or the third steam input pipeline 5 to the exhaust outlet of the multi-component raw gas conversion hydrogen production device. The externally discharged steam is input into the water collection tank 9 for recovery, and at the same time, a cooling treatment is carried out. The first steam trap 2 is used to adjust the steam flow rate; when the mechanical power pump inlet valve 11 is opened, the cooled steam condensate is extracted by the mechanical power pump 14 through the steam condensate output pipeline 10 and enters the steam condensate water cooler 16, and enters the steam condensate water cooler 16 through the first water outlet pipe 19 for further cooling. The temperature of the cooled steam condensate is 40 °C, which avoids the occurrence of water hammer phenomenon in the first water outlet pipe 19, and is safe and reliable to use. It is sent into the deaerator 18 through the second water outlet pipe 20, which can remove the oxygen and other gases in the steam condensate and ensure the quality of the secondary utilization water.

[0035] The second steam input pipeline 3 and the third steam input pipeline 5 are provided, and the externally discharged steam of the multi-component raw gas conversion hydrogen production device can be transported into the water collection tank 9 through the second steam input pipeline 3 and the third steam input pipeline 5. Multiple pipelines are used for transportation to improve the steam recovery efficiency. When other pipelines fail, the normal recovery of steam can be ensured, the normal operation of the entire recovery device can be guaranteed, and the reliability of use can be improved.

Claims

1. A device for recovering condensate from exhaust steam of a multi-component raw gas conversion hydrogen production device, characterized in that: The invention comprises a water collecting tank (9), wherein a steam condensate input main pipeline (7) is fixedly connected to the side wall of the water collecting tank (9), one end of the steam condensate input main pipeline (7) is connected to a first steam input pipeline (1), a first steam trap (2) is installed on the first steam input pipeline (1), and a water collecting tank inlet valve (8) is installed on the steam condensate input main pipeline (7); a steam condensate output pipeline (10) is fixedly connected to the side wall of the water collecting tank (9), one end of the steam condensate output pipeline (10) is connected to a mechanical power pump (14), the side wall of the mechanical power pump (14) is connected to a first water outlet pipe (19), one end of the first water outlet pipe (19) is connected to a steam condensate water cooler (16), the steam condensate water cooler (16) is connected to a second water outlet pipe (20), and one end of the second water outlet pipe (20) is connected to a deaerator (18).

2. The device for recovering condensate from the exhaust steam of a multi-component raw gas conversion hydrogen production device according to claim 1, characterized in that: The steam condensate output pipeline (10) is provided with a mechanical power pump inlet valve (11); the first water outlet pipe (19) is provided with a mechanical power pump outlet valve (15); and the second water outlet pipe (20) is provided with a steam condensate outlet device boundary valve (17).

3. The device for recovering condensate from the exhaust steam of a multi-component raw gas conversion hydrogen production device as claimed in claim 2, characterized in that: The end of the steam condensate input main pipeline (7) is connected to a second steam input pipeline (3), and a second steam trap (4) is installed on the second steam input pipeline (3).

4. The device for recovering condensate from the exhaust steam of a multi-component raw gas conversion hydrogen production device as claimed in claim 3, characterized in that: The end of the steam condensate input main pipeline (7) is connected to a third steam input pipeline (5), and a third steam trap (6) is installed on the third steam input pipeline (5).

5. The device for recovering condensate from the exhaust steam of a multi-component raw gas conversion hydrogen production device as claimed in claim 4, characterized in that: The mechanical power pump (14) is connected to a power steam inlet pipeline (12), and a power steam control valve (13) is installed on the power steam inlet pipeline (12).

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