A device for removing trimethylamine

Abstract

This utility model belongs to the field of trimethylamine removal technology, specifically relating to a trimethylamine removal device, including a deamination tower bottom liquid cooler, a deamination tower reboiler, and a deamination tower condenser. The deamination tower reboiler and condenser are both connected to the deamination tower bottom liquid cooler via pipelines. A pressure relief pipe is connected to the deamination tower bottom liquid cooler, and a connecting nozzle is threaded onto the inner side of the upper opening of the pressure relief pipe. A pressure relief port is fixedly connected to the top of the connecting nozzle. By setting up the deamination tower bottom liquid cooler, reboiler, and condenser, online removal of trimethylamine is achieved. The pressure relief pipe on the deamination tower bottom liquid cooler utilizes a coordinated design of a tapered tube, elastic band, and plug to achieve rapid pressure relief of the trimethylamine gas. When the pressure inside the tower exceeds a threshold, the gas pushes open the plug to release pressure. After the pressure decreases, the elastic band automatically pulls back the plug to seal, requiring no manual intervention.

Description

Technical Field

[0001] This solution belongs to the field of trimethylamine removal, specifically involving a trimethylamine removal device. Background Technology

[0002] During methanol production, a small amount of trimethylamine is inevitably generated during the catalytic reaction of syngas to produce methanol due to side reactions. Trimethylamine is a foul-smelling pollutant with a low boiling point (3°C at 101.3 kPa) and a high vapor pressure (220 kPa at 20°C), irritating to the eyes, nose, throat, and skin. In the methanol distillation process, a large amount of methanol is carried away during the removal of trimethylamine. Although this methanol can be further distilled into products of different concentrations, the residual trimethylamine emits a foul odor that severely affects product quality, hindering subsequent sales and downstream use.

[0003] Traditional methods for removing trimethylamine mainly include resin adsorption, which has the following main problems: Traditional resin adsorption uses adsorption devices with strong acid resins. This method has the problem of small processing capacity, which is difficult to meet the needs of large-scale industrial production; it can only handle methanol with low trimethylamine concentration, and cannot effectively treat methanol solutions with high trimethylamine concentration; in addition, the resin needs to be replaced regularly, which increases costs and the operation process is relatively complicated. Utility Model Content

[0004] The purpose of this solution is to provide a trimethylamine removal device to solve the problems of low efficiency and cumbersome operation of the traditional resin adsorption method for trimethylamine.

[0005] To achieve the above objectives, this solution provides a trimethylamine removal device, including a deamine tower bottom liquid cooler, a deamine tower reboiler, and a deamine tower condenser. Both the deamine tower reboiler and the deamine tower condenser are connected to the deamine tower bottom liquid cooler via pipes. A pressure relief pipe is connected to the deamine tower bottom liquid cooler. A connecting nozzle is threaded onto the inner side of the upper opening of the pressure relief pipe. A pressure relief port is fixedly connected to the top of the connecting nozzle, and the pressure relief port abuts against the pressure relief pipe. A locking mechanism is provided between the pressure relief port and the pressure relief pipe. A tapered tube is fixedly connected to the lower inner side of the pressure relief port. Two fixing rods are fixedly connected to the inner side of the tapered tube. A support block is fixedly connected between the two fixing rods. An elastic band is fixedly connected to the upper end of the support block, and a plug is fixedly connected to the end of the elastic band, with the plug slidably connected to the inner side of the narrow opening of the tapered tube.

[0006] The principle of this solution is as follows: During use, trimethylamine can be removed online through the deamine tower bottom cooler, deamine tower reboiler, and deamine tower condenser. When the pressure inside the tower exceeds the threshold, the gas pushes open the plug, the plug separates from the cone tube, and thus releases the pressure. When the pressure decreases, the elastic band automatically pulls back the plug and reseals the cone tube without manual intervention. In addition, if it is necessary to clean the pressure relief port and the components inside the pressure relief port later, simply separate the rubber ball at the end of the connecting rod from the locking block, then release the restriction on the lever, and then pull the locking pin through the lever to separate the locking pin from the locking disc at the bottom of the pressure relief port. Then, screw the pressure relief port to separate the connecting nozzle at the bottom of the pressure relief port from the pressure relief pipe. Similarly, the above steps can be reversed to complete the installation of the pressure relief port.

[0007] The technical advantages of this solution are as follows: by setting up a deamine tower bottom liquid cooler, a deamine tower reboiler, and a deamine tower condenser, trimethylamine can be removed online. Then, a pressure relief pipe is set on the deamine tower bottom liquid cooler. Through the linkage design of the tapered tube, elastic band, and plug, the trimethylamine gas can be rapidly depressurized. When the pressure inside the tower exceeds the threshold, the gas pushes open the plug to release. After the pressure decreases, the elastic band automatically pulls back the plug to seal it, without the need for manual intervention.

[0008] By setting a locking mechanism at the pressure relief pipe and pressure relief port, the locking pin is inserted into the locking disc under the action of the spring, and the locking disc is fixed at the bottom of the pressure relief port. In this way, after the pressure relief port is installed at the pressure relief pipe through the connecting nozzle, it can be locked to prevent loosening. This not only facilitates the quick installation and removal of the pressure relief port, but also ensures the stability of the installation.

[0009] Furthermore, a sealing ring is embedded at the bottom edge of the pressure relief port, and the sealing ring abuts against the pressure relief pipe. The sealing ring enhances the sealing performance at the connection between the pressure relief port and the pressure relief pipe.

[0010] Furthermore, two support rods are fixedly connected to the upper inner side of the pressure relief port, and a guide sleeve is fixedly connected between the two support rods. The plug is slidably connected to the inner side of the guide sleeve. The guide sleeve serves to guide and reset the plug.

[0011] Furthermore, the circumferential surface of the plug is provided with ball bearings, which contact the inner wall of the guide sleeve. The ball bearings reduce the relative friction between the plug and the guide sleeve.

[0012] Furthermore, the locking mechanism includes a locking disc fixedly connected to the bottom edge of the pressure relief port, a locking block fixedly connected to the outer wall of the pressure relief pipe, a locking pin slidably connected inside the locking block, the locking pin being inserted into the locking disc, a spring being provided inside the locking block, and a lever fixedly connected to the pin body of the locking pin, the lever being slidably connected to the locking block, and a limit block fixedly connected to the end of the lever. Through the setting of the locking mechanism, the pressure relief port has a locking function after installation.

[0013] Furthermore, one end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the lock block. The spring force can act on the locking pin, ensuring that the locking pin is always inserted into the lock disc.

[0014] Furthermore, a sliding sleeve is slidably fitted onto the outer side of the lever body, and a connecting rod is fixedly connected to the outer ring wall of the sliding sleeve. A rubber retaining bead is fixedly connected to the end of the connecting rod, and the rubber retaining bead engages with the locking block. The sliding sleeve, connecting rod, and rubber retaining bead provide anti-loosening protection for the lever and the locking pin. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of an embodiment of the present utility model.

[0016] Figure 2 This is an embodiment of the present utility model. Figure 1 A partial structural diagram;

[0017] Figure 3 This is an embodiment of the present utility model. Figure 1 A partial structural front sectional view;

[0018] Figure 4 This is an embodiment of the present utility model. Figure 3 A magnified view of the local structure;

[0019] Figure 5 This is an embodiment of the present utility model. Figure 3 Enlarged view of point A.

[0020] The following detailed explanation illustrates the specific implementation methods:

[0021] The reference numerals in the accompanying drawings include: 1. Deaminating tower bottom liquid cooler; 2. Deaminating tower reboiler; 3. Deaminating tower condenser; 4. Pressure relief pipe; 5. Connecting nozzle; 6. Pressure relief port; 7. Sealing ring; 8. Locking mechanism; 9. Conical tube; 10. Fixing rod; 11. Support block; 12. Elastic band; 13. Plug; 14. Support rod; 15. Guide sleeve; 16. Ball bearing; 61. Locking disc; 62. Locking block; 63. Locking pin; 64. Spring; 65. Lever; 66. Limiting block; 67. Sliding sleeve; 68. Connecting rod; 69. Rubber retaining ball. Detailed Implementation

[0022] The basic implementation examples are as follows: Figures 1-5 The diagram shows a trimethylamine removal device, comprising a deamine tower bottom liquid cooler 1, a deamine tower reboiler 2, and a deamine tower condenser 3. Both the deamine tower reboiler 2 and the deamine tower condenser 3 are connected to the deamine tower bottom liquid cooler 1 via pipes. A pressure relief pipe 4 is connected to the bottom liquid cooler 1. A connecting nozzle 5 is threaded onto the inner side of the upper opening of the pressure relief pipe 4. A pressure relief port 6 is fixedly connected to the top of the connecting nozzle 5, abutting against the pressure relief pipe 4. A sealing ring 7 is embedded in the bottom edge of the pressure relief port 6, also abutting against the pressure relief pipe 4. The sealing ring 7 enhances the sealing performance at the connection between the pressure relief port 6 and the pressure relief pipe 4.

[0023] like Figure 4 , Figure 5 As shown, a tapered tube 9 is fixedly connected to the lower inner side of the pressure relief port 6. Two fixed rods 10 are fixedly connected to the inner side of the tapered tube 9. A support block 11 is fixedly connected between the two fixed rods 10. An elastic band 12 is fixedly connected to the upper end of the support block 11. A plug 13 is fixedly connected to the end of the elastic band 12, and the plug 13 is slidably connected to the inner side of the narrow opening of the tapered tube 9. Two support rods 14 are fixedly connected to the upper inner side of the pressure relief port 6. A guide sleeve 15 is fixedly connected between the two support rods 14, and the plug 13 is slidably connected to the inner side of the guide sleeve 15. The guide sleeve 15 serves to guide and reset the plug 13. A ball bearing 16 is provided on the circumferential surface of the plug 13, and the ball bearing 16 contacts the inner wall of the guide sleeve 15. The ball bearing 16 reduces the relative friction between the plug 13 and the guide sleeve 15.

[0024] like Figure 4 , Figure 5As shown, a locking mechanism 8 is provided between the pressure relief port 6 and the pressure relief pipe 4. The locking mechanism 8 provides a locking function for the pressure relief port 6 after installation. The locking mechanism 8 includes a locking disc 81 fixedly connected to the bottom edge of the pressure relief port 6, a locking block 82 fixedly connected to the outer wall of the pressure relief pipe 4, a locking pin 83 slidably connected inside the locking block 82, the locking pin 83 being inserted into the locking disc 81, and a spring 84 inside the locking block 82. One end of the spring 84 is fixedly connected to the locking pin 83, and the other end is fixedly connected to the inner surface of the locking block 82. The elastic force of the spring 84 acts on the locking pin 83, ensuring that the locking pin 83 is always inserted into the locking disc 81. A lever 85 is fixedly connected to the pin of the locking pin 83, and the lever 85 is slidably connected to the locking block 82. A limit block 86 is fixedly connected to the end of the lever 85. A sliding sleeve 87 is slidably sleeved on the outer side of the lever 85. A connecting rod 88 is fixedly connected to the outer ring wall of the sliding sleeve 87. A rubber retaining bead 89 is fixedly connected to the end of the connecting rod 88, and the rubber retaining bead 89 engages with the locking block 82. The sliding sleeve 87, the connecting rod 88, and the rubber retaining bead 89 provide anti-loosening protection for the lever 85 and the locking pin 83.

[0025] The specific implementation process of this utility model is as follows: In use, trimethylamine can be removed online through the deamine tower bottom liquid cooler 1, the deamine tower reboiler 2, and the deamine tower condenser 3. When the pressure inside the tower exceeds the threshold, the gas pushes open the plug 13, and the plug 13 separates from the cone tube 9, thereby releasing it. When the pressure decreases, the elastic band 12 automatically pulls back the plug 13 and reseals the cone tube 9 without manual intervention. In addition, if it is necessary to clean the pressure relief port 6 and the components inside the pressure relief port 6 later, simply separate the rubber ball 89 at the end of the connecting rod 88 from the locking block 82, and then release the restriction on the lever 85. Then, pull the locking pin 83 through the lever 85 to separate the locking pin 83 from the locking disc 81 at the bottom of the pressure relief port 6. Then, twist the pressure relief port 6 to separate the connecting nozzle 5 at the bottom of the pressure relief port 6 from the pressure relief pipe 4. Similarly, the above steps can be reversed to complete the installation of the pressure relief port 6.

[0026] This solution achieves online removal of trimethylamine by setting up a deamination tower bottom liquid cooler 1, a deamination tower reboiler 2, and a deamination tower condenser 3. Then, a pressure relief pipe 4 is set on the deamination tower bottom liquid cooler 1. Through the linkage design of the cone tube 9, elastic band 12 and plug 13, the trimethylamine gas can be rapidly depressurized. When the pressure inside the tower exceeds the threshold, the gas pushes open the plug 13 to release. After the pressure decreases, the elastic band 12 automatically pulls back the plug 13 to seal, without the need for manual intervention.

[0027] By setting a locking mechanism 8 at the pressure relief pipe 4 and the pressure relief port 6, the locking pin 83 will be inserted into the locking disc 81 under the action of the spring 84, and the locking disc 81 is fixed at the bottom of the pressure relief port 6. In this way, after the pressure relief port 6 is installed at the pressure relief pipe 4 through the connecting nozzle 5, it can be locked to prevent loosening. This not only facilitates the quick installation and removal of the pressure relief port 6, but also ensures the stability of the installation.

[0028] The above descriptions are merely embodiments of this utility model, and common knowledge regarding specific structures and characteristics is not elaborated upon here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of this utility model, and these should also be considered within the scope of protection of this utility model. These modifications will not affect the effectiveness of the implementation of this utility model or the practicality of the patent. The scope of protection claimed in this application shall be determined by the content of its claims, and the specific embodiments described in the specification can be used to interpret the content of the claims.

Claims

1. A trimethylamine removal apparatus comprising a deaminator kettle liquid cooler, a deaminator reboiler, and a deaminator condenser, characterized by: The deamination tower reboiler and deamination tower condenser are both connected to the deamination tower bottom liquid cooler via pipes. A pressure relief pipe is connected to the deamination tower bottom liquid cooler. A connecting nozzle is threaded to the inner side of the upper opening of the pressure relief pipe. A pressure relief port is fixedly connected to the top of the connecting nozzle. The pressure relief port abuts against the pressure relief pipe. A locking mechanism is provided between the pressure relief port and the pressure relief pipe. A tapered tube is fixedly connected to the lower inner side of the pressure relief port. Two fixing rods are fixedly connected to the inner side of the tapered tube. A support block is fixedly connected between the two fixing rods. An elastic band is fixedly connected to the upper end of the support block. A plug is fixedly connected to the end of the elastic band, and the plug is slidably connected to the inner side of the narrow opening of the tapered tube.

2. A device for removing trimethylamine according to claim 1, characterized in that A sealing ring is embedded in the bottom edge of the pressure relief port, and the sealing ring abuts against the pressure relief pipe.

3. A device for removing trimethylamine according to claim 1, characterized in that: Two support rods are fixedly connected to the upper inner side of the pressure relief port, and a guide sleeve is fixedly connected between the two support rods. The plug is slidably connected to the inner side of the guide sleeve.

4. The trimethylamine removal device according to claim 3, characterized in that: The plug has balls on its circumferential surface, and the balls are in contact with the inner wall of the guide sleeve.

5. The trimethylamine removal device according to claim 1, characterized in that: The locking mechanism includes a locking disc fixedly connected to the bottom edge of the pressure relief port, a locking block fixedly connected to the outer wall of the pressure relief pipe, a locking pin slidably connected inside the locking block, the locking pin being inserted into the locking disc, a spring being provided inside the locking block, a lever fixedly connected to the pin body of the locking pin, the lever slidably connected to the locking block, and a limit block fixedly connected to the end of the lever.

6. The trimethylamine removal device according to claim 5, characterized in that: One end of the spring is fixedly connected to the locking pin, and the other end of the spring is fixedly connected to the inner surface of the lock block.

7. A device for removing trimethylamine according to claim 5, characterized in that: The lever has a sliding sleeve on its outer side, and a connecting rod is fixedly connected to the outer ring wall of the sliding sleeve. A rubber bead is fixedly connected to the end of the connecting rod, and the rubber bead engages with the locking block.

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