Device for preparing deuterated methanol by using deuterium tail gas

Abstract

The utility model relates to a device for preparing deuterated methanol by using deuterium tail gas, which aims at solving the technical problems that the preparation efficiency is influenced by the impurity problem, the catalytic speed is influenced and the resource is wasted when the deuterated methanol is directly prepared by using the deuterium tail gas at present, and comprises a preparation device, a filtering box is connected to a pipe opening of the preparation device, a filtering piece is inserted into the filtering box, a square groove is formed in the upper surface of the filtering box, air cushion strips are arranged on the inner walls of the four sides of the square groove, and the side faces, close to each other, of the air cushion strips on the two sides are arc-shaped faces. A square groove is formed in the upper surface of the filter box, a square pressing strip combined with the square groove is fixedly arranged on the lower side face of the filter piece, a bottom plate is integrally and fixedly arranged at the bottom of the filter box, and a limiting frame is fixedly arranged on the upper surface of the bottom plate. And resource waste is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of a device for preparing deuterated methanol, in particular to a device for preparing deuterated methanol by utilizing deuterium tail gas. Background Art

[0002] Deuterated methanol is mainly used as nuclear magnetic resonance reagent, pharmaceutical and synthesis, photoelectric material modification, laboratory special reagent, chemicals, scientific research, detection, etc. Deuterated methanol is an important chemical raw material and deuterated drug intermediate. In chemical synthesis, it is a commonly used nuclear magnetic resonance hydrogen spectrum detection reagent and is widely used in experimental research.

[0003] The tail gas produced after the use of existing deuterium gas generally contains impurities, so the deuterated methanol production process cannot be directly carried out. The impure deuterium gas can easily affect the catalytic work, resulting in a slow production speed of deuterated methanol, affecting the utilization rate of deuterated tail gas, and causing waste of resources. Therefore, a device for preparing deuterated methanol with a filtering structure is needed. In view of this, we propose a device for preparing deuterated methanol using deuterium tail gas. Utility Model Content

[0004] The purpose of the utility model is to overcome the shortcomings of the prior art, meet the actual needs, and provide a device for preparing deuterated methanol using deuterium tail gas, so as to solve the technical problem that the current direct production of deuterated methanol using deuterium tail gas will affect the production efficiency due to impurities, affect the catalytic speed, and cause waste of resources.

[0005] In order to achieve the purpose of the utility model, the technical solution adopted by the utility model is: to design a device for preparing deuterated methanol by utilizing deuterium tail gas, including a preparation device, a filter box is connected to the outlet of the preparation device, a filter element is inserted and installed inside the filter box, a square groove is provided on the upper surface of the filter box, air cushion strips are provided on the four inner walls of the square groove, and the sides close to the air cushion strips on both sides are arc-shaped surfaces, a square pressure strip combined with the square groove is fixedly provided on the lower side of the filter element, a bottom plate is fixedly provided on the bottom of the filter box, a limit frame is fixedly provided on the upper surface of the bottom plate, and a protective cover is installed on the upper surface of the limit frame.

[0006] Preferably, an extrusion block that fits the upper surface of the filter element is fixedly provided at the bottom of the protective cover.

[0007] Preferably, a gas detector is installed through the upper surface of the protective cover, and a detection end of the gas detector is located inside the protective cover.

[0008] Preferably, a slot is provided on the upper side of the limit frame from top to bottom, an insert plate combined with the slot is fixedly provided on the lower side of the protective cover, and the insert plate and the limit frame are connected by a threaded pin.

[0009] Preferably, arc-shaped grooves corresponding to the connecting pipes are provided on the left and right plate walls of the limit frame and the protective cover, and sealing gaskets of corresponding shapes are fixedly provided on the inner walls of the arc-shaped grooves.

[0010] Compared with the prior art, the beneficial effects of the utility model are:

[0011] 1. The utility model can filter impurities in the exhaust gas by setting a filter box between the exhaust pipe and the preparation device, so as to improve the purity of the exhaust gas, reduce the impurities entering the preparation device and affecting the preparation speed, and effectively improve the catalytic effect of the exhaust gas. The plug-in installed filter structure is convenient for disassembly and assembly operations, and the extrusion block limit at the bottom of the protective cover can reduce the limit structure, which is convenient to use. Through such a structural combination, the influence of impurities on the catalytic process can be reduced, resource waste can be reduced, and the preparation effect can be improved.

[0012] 2. The square groove provided on the filter box in the utility model is combined with the square strip at the bottom of the filter element to improve the tightness of the combination. At the same time, the air cushion strip in the square groove can be flattened outward under pressure to improve the fit with the square strip, thereby improving the sealing of the connection. The combination of the limit frame and the protective cover can enclose the filter box inside, and cooperate with the gas detector to detect whether there is gas leakage, thereby reducing the safety hazard of preparation. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0014] Figure 2 It is a partial structural schematic diagram of the utility model;

[0015] Figure 3 It is a schematic diagram of the structure of the filter box of the utility model;

[0016] Figure 4 This is a schematic diagram of the cutaway structure of the protective cover in the utility model;

[0017] Figure 5 It is an enlarged schematic diagram of the structure of part A in the utility model;

[0018] Figure 6 It is a plan view of the filter element in the utility model.

[0019] In the figure: 1. preparation device; 2. filter box; 201. square groove; 202. air cushion strip; 3. filter element; 301. square pressure strip; 4. bottom plate; 5. limit frame; 501. slot; 6. protective cover; 601. plug-in board; 602. extrusion block; 7. gas detector. DETAILED DESCRIPTION

[0020] The utility model is further described below in conjunction with the accompanying drawings and embodiments:

[0021] Example: A device for preparing deuterated methanol using deuterium tail gas, see Figures 1 to 6 , comprising a preparation device 1, by introducing a mixed gas of deuterium gas, carbon monoxide gas and nitrogen into a reactor equipped with a catalyst, reacting at a pressure of 5MPa to 7MPa and a temperature of 210°C to 290°C to generate deuterated methanol, the preparation device 1 is connected to a filter box 2 at the pipe mouth, the left and right sides of the filter box 2 are provided with connecting ports, a filter cavity is provided inside, and a socket connected to the filter cavity is provided on the upper surface, a filter element 3 is inserted and installed inside the filter box 2, the filter part is inserted into the filter cavity through the position of the socket, the limit plate at the upper end of the filter element 3 contacts the upper surface of the filter box 2, and plays a limiting role, the upper surface of the filter box 2 has a square groove 201, and the square groove 2 Air cushion strips 202 are arranged on the inner walls of the four sides of 01, and the sides close to the air cushion strips 202 on both sides are arc-shaped surfaces, and a square pressure strip 301 combined with the square groove 201 is fixedly arranged on the lower side of the filter element 3, and the square pressure strip 301 can enter the square groove 201 to squeeze the air cushion strip 202 to shrink, so that it can be laid flat between the square groove 201 and the square pressure strip 301, thereby improving the tightness of contact and achieving the effect of sealing connection, and the bottom of the filter box 2 is integrally fixed with a bottom plate 4, and a limiting frame 5 is fixedly arranged on the upper surface of the bottom plate 4, and a protective cover 6 is installed on the upper surface of the limiting frame 5, and the filter box 2 can be enclosed inside by combining the limiting frame 5 with the protective cover 6 to prevent gas leakage.

[0022] Specifically, an extrusion block 602 that fits the upper surface of the filter element 3 is fixedly provided at the bottom of the protective cover 6; the filter element 3 can be fixed in position by extrusion, and the setting of a limiting structure can be omitted, making it convenient to disassemble and assemble the filter element 3.

[0023] Furthermore, a gas detector 7 is installed through the upper surface of the protective cover 6, and the detection end of the gas detector 7 is located inside the protective cover 6; through the installation of the gas detector 7, it is possible to detect whether there is gas leakage between the limit frame 5 and the protective cover 6.

[0024] Furthermore, a slot 501 is provided on the upper side of the limit frame 5 from top to bottom, and a plug plate 601 combined with the slot 501 is fixedly provided on the lower side of the protective cover 6, and the plug plate 601 is connected to the limit frame 5 by a threaded pin; the plug plate 601 is combined with the slot 501 to limit the docking position and improve the tightness of the docking.

[0025] It is worth mentioning that arc grooves corresponding to the connecting pipes are provided on the left and right plate walls of the limit frame 5 and the protective cover 6, and sealing gaskets of corresponding shapes are fixed on the inner walls of the arc grooves; the setting of the arc grooves facilitates the passage of the connecting pipes, and the sealing gaskets can ensure the sealing of the combination.

[0026] Working principle: first, combine the exhaust pipe with the connection port on the filter box 2, and then install the protective cover 6 on the limit frame 5 to complete the overall assembly. In this way, the exhaust gas can first pass through the filter element 3 in the filter box 2 to filter the mixed impurities, so that the filtered exhaust gas enters the preparation device 1. In this way, the influence of impurities on the catalytic production operation can be reduced. The filter element 3 and the filter box 2 are connected by plug-in, which can be convenient for disassembly and cleaning and replacement. The limit frame 5 and the protective cover 6 are set on the outside of the filter box 2 to block gas leakage. At the same time, the gas detector 7 on the protective cover 6 can detect whether there is gas leakage inside. In this way, the safety of the catalytic process can be ensured, and the leakage of flammable gas can be prevented from affecting the safety of work. The overall structural coordination can improve the catalytic effect of deuterium exhaust gas and reduce resource waste.

[0027] The embodiments of the present invention disclose preferred embodiments, but are not limited thereto. A person skilled in the art can easily understand the spirit of the present invention based on the above embodiments and make different extensions and changes. However, as long as they do not deviate from the spirit of the present invention, they are all within the protection scope of the present invention.

Claims

1. A device for preparing deuterated methanol using deuterium tail gas, characterized in that: The invention comprises a preparation device (1), wherein a filter box (2) is connected to the outlet of the preparation device (1), a filter element (3) is inserted and installed inside the filter box (2), a square groove (201) is provided on the upper surface of the filter box (2), air cushion strips (202) are arranged on the inner walls of the four sides of the square groove (201), and the side surfaces close to the air cushion strips (202) on both sides are arc-shaped surfaces, a square pressure strip (301) combined with the square groove (201) is fixedly arranged on the lower side surface of the filter element (3), a bottom plate (4) is fixedly arranged on the bottom of the filter box (2), a limit frame (5) is fixedly arranged on the upper surface of the bottom plate (4), and a protective cover (6) is installed on the upper surface of the limit frame (5).

2. The device for preparing deuterated methanol using deuterium tail gas as claimed in claim 1, characterized in that: An extrusion block (602) is fixedly provided at the bottom of the protective cover (6) and is in contact with the upper surface of the filter element (3).

3. The device for preparing deuterated methanol using deuterium tail gas as claimed in claim 1, characterized in that: A gas detector (7) is installed through the upper surface of the protective cover (6), and a detection end of the gas detector (7) is located inside the protective cover (6).

4. The device for preparing deuterated methanol using deuterium tail gas as claimed in claim 1, characterized in that: A slot (501) is provided on the upper side of the limit frame (5) from top to bottom, and a plug plate (601) coupled with the slot (501) is fixedly provided on the lower side of the protective cover (6), and the plug plate (601) is connected to the limit frame (5) via a threaded pin.

5. The device for preparing deuterated methanol using deuterium tail gas as claimed in claim 1, characterized in that: The left and right plate walls of the limit frame (5) and the protective cover (6) are both provided with arc grooves corresponding to the connecting pipe, and a sealing gasket of a corresponding shape is fixedly provided on the inner wall of the arc groove.

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