Purification system for washing crude methanol synthesis gas

Abstract

The utility model discloses a methanol crude synthesis gas washing purification system which comprises a mounting plate, the upper surface of the mounting plate is fixedly connected with a group of mounting columns, the top ends of the group of mounting columns are jointly and fixedly connected with a gas-liquid separation tank, and the outer surface of the gas-liquid separation tank is fixedly communicated with a gasification furnace. And the bottom end of the gasification furnace is fixedly communicated with a conveying pipe. According to the device, the gas-liquid separation tank, the gasification furnace, the conveying pipe, the first electromagnetic control valve and the chilling chamber are arranged, gas and liquid can be conveniently separated, gas can be conveniently washed in cooperation with the liquid discharging pipe, the second electromagnetic control valve, the first-stage venturi scrubber, the second-stage venturi scrubber and the washing tower, and the flash evaporation tank and the water diversion pipe are combined, so that the gas-liquid separation efficiency is improved. And the Venturi gas-liquid separation tank and the washing tower can be prevented from being blocked by the synthesis gas in the washing process by utilizing the adjustment of the technology, so that the long-period stable operation of the device is ensured.

Description

Technical Field

[0001] The utility model relates to the field of methanol processing, in particular to a purification system for washing crude methanol synthesis gas. Background Art

[0002] During the gasification and combustion reaction process, the liquid level gauges of the gasifier and the venturi gas-liquid separation tank fluctuate greatly, and the system will produce some corrosive substances such as sulfur and nitrogen. The raw synthesis gas after washing will bring the corrosive substances to the downstream section. When the gasifier is started or stopped or the synthesis gas contains water, there will be some condensate in the synthesis gas transmission pipeline, and the condensate will be sent to the downstream device, damaging the conversion catalyst and causing unstable operation of the device. In addition, since the synthesis gas pipeline is long and the residence time in the pipeline is long, the corrosive substances carried by the synthesis gas will seriously corrode the pipelines and equipment, and there is a risk of leakage in the pipelines and equipment.

[0003] At present, according to the operating conditions of the gasifier, the synthesis gas leaving the quenching chamber is prone to carry ash and slag, which will then block the drainage pipeline at the head of the first-stage venturi throat and the bottom of the gas-liquid separation tank, and may even cause serious scaling and slag accumulation in the venturi gas-liquid separation tank and the synthesis gas pipeline, resulting in the inability to effectively drain the venturi gas-liquid separation tank, seriously restricting the long-term stable operation of the gasification device. To this end, we propose a purification system for methanol crude synthesis gas washing to solve the above problems. Utility Model Content

[0004] The purpose of the utility model is to provide a purification system for washing crude methanol synthesis gas to solve the problems raised in the above background technology.

[0005] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0006] A purification system for washing methanol crude synthesis gas comprises a mounting plate, the upper surface of which is fixedly connected to a group of mounting columns, the top ends of the group of mounting columns are commonly fixedly connected to a gas-liquid separation tank, the outer surface of the gas-liquid separation tank is fixedly connected to a gasifier, the bottom end of the gasifier is fixedly connected to a delivery pipe, the outer surface of the delivery pipe is fixedly installed with a first electromagnetic control valve, the bottom end of the delivery pipe is fixedly connected to a quenching chamber, the bottom surface of the quenching chamber is fixedly connected to a drain pipe, the outer surface of the drain pipe is fixedly installed with a second electromagnetic control valve, the outer surface of the drain pipe is fixedly installed with a first-level venturi scrubber, the right end of the drain pipe is connected to a second-level venturi scrubber, the bottom surface of the second-level venturi scrubber is fixedly connected to a washing tower, the bottom surface of the washing tower is fixedly connected to a flash tank, the bottom surface of the flash tank is fixedly connected to a cold water pump, the output end of the cold water pump is fixedly connected to a water diversion pipe, and the top end of the water diversion pipe is fixedly connected to the quenching chamber.

[0007] In a further embodiment, a group of mounting holes are provided on the upper surface of the mounting plate, and anti-slip grooves are provided on the bottom surface of the mounting plate.

[0008] In a further embodiment, a control display screen is fixedly connected to the upper surface of the mounting plate, and the cold water pump is connected to a power source via a power cord.

[0009] In a further embodiment, a controller is fixedly connected to the upper surface of the mounting plate, and the second electromagnetic control valve is connected to a power source via a connecting line.

[0010] In a further embodiment, a liquid level meter is fixedly installed on the inner wall of the gas-liquid separation tank, and the first electromagnetic control valve is connected to a power source via a wire.

[0011] In a further embodiment, a connecting plate is fixedly connected to the upper surface of the mounting plate, and the upper surface of the connecting plate is fixedly connected to the bottom surface of the flash tank.

[0012] Compared with the prior art, the beneficial effects of the utility model are:

[0013] The device is provided with a gas-liquid separation tank, a gasification furnace, a conveying pipe, a first electromagnetic control valve, and a quenching chamber, so that the gas and liquid can be separated conveniently. In addition, the device is equipped with a discharge pipe, a second electromagnetic control valve, a first-level Venturi scrubber, a second-level Venturi scrubber, and a washing tower, so that the gas can be washed conveniently. In addition, the flash tank and the water diversion pipe can be used for washing again conveniently. The adjustment of the above technologies can avoid the blockage of the Venturi gas-liquid separation tank and the washing tower caused by the synthesis gas during the washing process, thereby ensuring the long-term stable operation of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a stereogram of an installation plate in a purification system for washing crude methanol synthesis gas.

[0015] Figure 2 Side view of the quench chamber in the purification system for methanol raw synthesis gas scrubbing.

[0016] Figure 3 This is a top view of the gas-liquid separation tank in the purification system for methanol raw synthesis gas washing.

[0017] Figure 4 Bottom view of the mounting plate in the purification system for methanol raw synthesis gas scrubbing.

[0018] Figure 5 This is a schematic diagram of the system structure in the purification system for washing methanol raw synthesis gas.

[0019] In the figure: 1. Mounting plate; 2. Mounting column; 3. Gas-liquid separation tank; 4. Gasification furnace; 5. Delivery pipe; 6. First electromagnetic control valve; 7. Quenching chamber; 8. Controller; 9. Drain pipe; 10. Second electromagnetic control valve; 11. First-stage Venturi scrubber; 12. Second-stage Venturi scrubber; 13. Scrubber; 14. Flash tank; 15. Water pipe; 16. Connecting plate; 17. Mounting hole; 18. Control display screen; 19. Cold water pump; 20. Liquid level meter. DETAILED DESCRIPTION

[0020] In the description of the present utility model, it should be understood that the terms "center", "longitudinal", "lateral", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside" and the like indicate positions or positional relationships based on the positions or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present utility model and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present utility model. In addition, the terms "first", "second", etc. are only used for descriptive purposes, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Therefore, features defined as "first", "second", etc. may explicitly or implicitly include one or more of the features. In the description of the present utility model, unless otherwise specified, "multiple" means two or more.

[0021] In the description of the present invention, it should be noted that, unless otherwise clearly specified and limited, the terms "installation", "connection" and "connection" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two components. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood by specific circumstances.

[0022] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0023] See also Figure 1-5In the utility model, a purification system for washing crude methanol synthesis gas comprises a mounting plate 1, a group of mounting columns 2 are fixedly connected to the upper surface of the mounting plate 1, a gas-liquid separation tank 3 is fixedly connected to the top of the group of mounting columns 2, the outer surface of the gas-liquid separation tank 3 is fixedly connected to a gasifier 4, the bottom end of the gasifier 4 is fixedly connected to a delivery pipe 5, the outer surface of the delivery pipe 5 is fixedly installed with a first electromagnetic control valve 6, the bottom end of the delivery pipe 5 is fixedly connected to a quenching chamber 7, which can facilitate the separation of gas and liquid, the bottom surface of the quenching chamber 7 is fixedly connected to a drain pipe 9, and the outer surface of the drain pipe 9 is fixedly installed with The second electromagnetic control valve 10 and the outer surface of the drain pipe 9 are fixedly installed with a first-level venturi scrubber 11, the right end of the drain pipe 9 is connected with a second-level venturi scrubber 12, the bottom of the second-level venturi scrubber 12 is fixedly connected with a washing tower 13, which can conveniently wash the gas, the bottom of the washing tower 13 is fixedly connected with a flash tank 14, the bottom of the flash tank 14 is fixedly connected with a cold water pump 19, the output end of the cold water pump 19 is fixedly connected with a water diversion pipe 15, the top of the water diversion pipe 15 is fixedly connected with the quenching chamber 7, and the cold water pump 19 and the water diversion pipe 15 can be conveniently washed again.

[0024] A group of mounting holes 17 are provided on the upper surface of the mounting plate 1, and anti-slip grooves are provided on the bottom surface of the mounting plate 1. The mounting holes 17 can be used to conveniently fix the mounting plate 1 to the ground. A control display screen 18 is fixedly connected to the upper surface of the mounting plate 1, and a cold water pump 19 is connected to a power source through a power cord. The control display screen 18 can be used to conveniently start the device. A controller 8 is fixedly connected to the upper surface of the mounting plate 1, and a second electromagnetic control valve 10 is connected to a power source through a connecting line. The controller 8 can be used to conveniently set the electrical components to work automatically.

[0025] A liquid level meter 20 is fixedly installed on the inner wall of the gas-liquid separation tank 3. The first electromagnetic control valve 6 is connected to the power supply through a wire. The liquid level meter 20 can be used to conveniently know the storage volume inside the gas-liquid separation tank 3. The upper surface of the mounting plate 1 is fixedly connected to a connecting plate 16. The upper surface of the connecting plate 16 is fixedly connected to the bottom surface of the flash tank 14. The connecting plate 16 can increase the bearing capacity of the flash tank 14.

[0026] The working principle of the utility model is:

[0027] First, the gas-liquid separation tank 3 separates the original gas, and the stripped water liquid enters the gasifier 4. At the same time, the delivery pipe 5 and the first electromagnetic control valve 6 control the water liquid to be discharged into the quenching chamber 7. Then the second electromagnetic control valve 10, the first-level Venturi scrubber 11 and the second-level Venturi scrubber 12 perform different washings on it, and the washed water liquid is stored in the washing tower 13. At the same time, the flash tank 14 vaporizes the water liquid. Finally, the cold water pump 19 cooperates with the water pipe 15 to send it into the quenching chamber 7 for further washing. The above is the entire use process of this equipment.

[0028] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-limiting from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims are included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

[0029] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A purification system for washing crude methanol synthesis gas, characterized in that: The invention comprises a mounting plate (1), the upper surface of which is fixedly connected to a group of mounting columns (2), the top ends of which are fixedly connected to a gas-liquid separation tank (3), the outer surface of which is fixedly connected to a gasification furnace (4), the bottom end of which is fixedly connected to a delivery pipe (5), the outer surface of which is fixedly installed with a first electromagnetic control valve (6), the bottom end of which is fixedly connected to a quenching chamber (7), the bottom surface of which is fixedly connected to a drain pipe (9), the outer surface of which is fixedly connected to a cooling chamber (7). A second electromagnetic control valve (10) is installed, a first-stage Venturi scrubber (11) is fixedly installed on the outer surface of the discharge pipe (9), the right end of the discharge pipe (9) is connected to a second-stage Venturi scrubber (12), the bottom surface of the second-stage Venturi scrubber (12) is fixedly connected to a washing tower (13), the bottom surface of the washing tower (13) is fixedly connected to a flash tank (14), the bottom surface of the flash tank (14) is fixedly connected to a cold water pump (19), the output end of the cold water pump (19) is fixedly connected to a water diversion pipe (15), and the top end of the water diversion pipe (15) is fixedly connected to a quenching chamber (7).

2. A purification system for washing crude methanol synthesis gas according to claim 1, characterized in that: A group of mounting holes (17) are provided on the upper surface of the mounting plate (1), and anti-slip grooves are provided on the bottom surface of the mounting plate (1).

3. A purification system for washing crude methanol synthesis gas according to claim 1, characterized in that: A control display screen (18) is fixedly connected to the upper surface of the mounting plate (1), and the cold water pump (19) is connected to a power source via a power line.

4. A purification system for washing crude methanol synthesis gas according to claim 1, characterized in that: A controller (8) is fixedly connected to the upper surface of the mounting plate (1), and the second electromagnetic control valve (10) is connected to a power source via a connecting line.

5. A purification system for washing crude methanol synthesis gas according to claim 1, characterized in that: A liquid level meter (20) is fixedly mounted on the inner wall of the gas-liquid separation tank (3), and the first electromagnetic control valve (6) is connected to a power source via a wire.

6. A purification system for washing crude methanol synthesis gas according to claim 1, characterized in that: A connecting plate (16) is fixedly connected to the upper surface of the mounting plate (1), and the upper surface of the connecting plate (16) is fixedly connected to the bottom surface of the flash tank (14).

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