Gas raw material supply module and gas reaction equipment

Abstract

The invention discloses a gas raw material supply module and gas reaction equipment, and the gas raw material supply module is characterized in that a gas generator is connected with an inlet of a mass flow controller through a pressure regulating valve; a mass flow controller outlet is connected with a first one-way valve inlet; a first one-way valve outlet is used as a raw material supply module supply port; the outlet of the back pressure valve is connected with the inlet of the discharging module; the pressure regulating valve is matched with the back pressure valve, so that the pressure of gas entering the reaction module and the pressure of a product entering the discharging module reach specified pressure. By means of the structural design, switching feeding, switching reaction and switching discharging of different reactants are achieved. By matching with corresponding operation procedures, on the premise of saving cost, ensuring safety production and not increasing equipment volume, five hydrogenation reactions can be continuously carried out at most in single feeding, the reactions are automatically switched, and each group of reaction conditions are mutually independent. The device can continuously work for 7 * 24 hours, and the production efficiency is remarkably improved compared with existing equipment.

Description

Technical Field

[0001] The invention relates to the field of chemical industry, and in particular to a gas raw material supply module and a gas reaction device having the gas raw material supply module. Background Art

[0002] Gas reactions are chemical reactions where a specified gas is added to another compound, such as gas-solid catalytic reactions, gas-solid non-catalytic reactions, gas / liquid reactions, etc. Taking hydrogenation reactions as an example, hydrogen (H2) is added to another compound, usually an unsaturated organic compound. This reaction can be catalytic or non-catalytic and can result in the formation of many types of compounds. The main types of hydrogenation reactions include: catalytic hydrogenation, non-catalytic hydrogenation, asymmetric hydrogenation, semi-hydrogenation, regioselective hydrogenation, stoichiometric hydrogenation, etc.

[0003] The existing hydrogenation reaction equipment is mainly composed of a plunger pump, high-pressure hydrogen, a pressure reducing valve, a gas flow controller, a reactor, a back pressure valve and control accessories. The pressure of the reaction system is from normal pressure to below 6MPa, and the flow control range of hydrogen is 30sccm-200sccm. The existing hydrogenation reaction equipment is controlled manually. The principle structure diagram of the existing hydrogenation reaction equipment is referenced Figure 1 shown.

[0004] The manual operation steps of the existing gas reaction equipment are as follows: 1. Manually fill the catalyst, ventilate the back pressure after filling, put the reactor into the oil bath, check the air tightness of the device, if there is no leakage, set the temperature of the oil bath, and manually back pressure the equipment to the required pressure through the branch (the branch is a passage in parallel with the flow meter. When back pressure occurs, hydrogen goes through the branch to prevent the pressure difference at both ends of the flow meter from being too large and damaging the flow meter). Set the flow rate of the flow meter to ensure that there is a stable outflow of bubbles at the rear end, prepare the raw material liquid, manually empty the plunger pump (when there are bubbles in the plunger pumped into the liquid pipe, it is necessary to use a syringe to manually empty it at the outlet of the pump), fill the pump to feed, set the flow rate of the main pump and the auxiliary pump (the branch pump mainly pumps the solvent, which is first mixed with hydrogen and then used to clean the catalyst). After the main pump raw material liquid is pumped, the reaction is over. After the reaction is completed, manually stop the main pump, increase the flow rate of the branch pump to the flow rate of the main pump during the reaction, flush for 20 minutes, remove the reactor after completion, pour out the catalyst, flush the reactor at a large flow rate, and finally complete the entire reaction.

[0005] The construction of existing hydrogenation automation equipment aims to improve the reaction efficiency of hydrogenation reaction in flow chemistry from the aspects of reaction channel, reaction quantity, operation convenience, safety, etc. At present, hydrogenation reaction is widely used in flow chemistry, but there are generally great challenges and pain points in its use: although the principles of other gas reaction mechanisms are different according to the equipment used in the gas-solid reaction type, the overall reaction design ideas are the same, and the defects of the hydrogenation automation equipment are also present;

[0006] ① There are many processes involved, and most of the existing equipment is manually operated. Before the reaction, it is necessary to manually control the gas flow rate, reaction system pressure, reaction temperature, and manually exhaust the air from the plunger pump and set the pump flow rate. The operation is more troublesome. Once the operation is wrong, it may cause damage to the gas flow meter. During the reaction, it is necessary to check whether the plunger pump and gas flow are abnormal. After the reaction, it is necessary to manually change the flow rate of the pump, replace the reagents, and elute the reactor. After the treatment, the pipeline needs to be flushed at a high flow rate. The whole process involves more people. Between different processes, the experimenter cannot operate the equipment in time, resulting in low equipment utilization. At this stage, the average output of a single device is to complete 0.5 reactions per day.

[0007] ② Gas, as one of the reaction conditions, may be flammable and explosive. There is a lack of timely and effective control over the on-off of the gas and the monitoring of the process flow, which causes some reactions to fail because the gas stops midway. This not only wastes a lot of time, but also leads to project delays and even wastes raw materials.

[0008] ③ The current hydrogenation reaction framework is relatively complex, with many gas control valves, all of which need to be operated manually in a fume hood, which affects the experimental efficiency and safety to a certain extent. Improper operation will also damage the flow meter;

[0009] ④ When the reaction time is long or starts in the afternoon, the reaction basically ends after get off work. After the reaction liquid is pumped, since the experimenters have already left work, the plunger pump will run idle until the next day. This will not only affect the life of the pump, but also waste electricity. In addition, the gas will not be turned off until the next day. Therefore, there are certain safety risks in the equipment at this stage.

[0010] ⑤ The existing equipment accessories are basically wrapped in the equipment, with many internal pipes, making maintenance inconvenient. Summary of the invention

[0011] A series of simplified concepts are introduced in the Summary of the Invention, which are all simplifications of the prior art in the field, and will be further described in detail in the Detailed Description of the Invention. The Summary of the Invention of the present invention does not mean to attempt to define the key features and essential technical features of the claimed technical solution, nor does it mean to attempt to determine the scope of protection of the claimed technical solution.

[0012] The technical problem to be solved by the present invention is to provide a gas raw material supply module which can accurately supply the reaction gas pressure.

[0013] And, a gas reaction device having the gas raw material supply module which can improve the gas reaction production efficiency and production safety.

[0014] In order to solve the above technical problems, the present invention provides a gas raw material supply module, comprising:

[0015] A gas generator 1, which is connected to an inlet of a mass flow controller 3 via a pressure regulating valve 2;

[0016] The mass flow controller 3, whose outlet is connected to the inlet of the first one-way valve 4, and the outlet of the first one-way valve 4 serves as the supply port of the raw material supply module;

[0017] A back pressure valve 26, whose inlet is connected to the outlet of the reaction module, and whose outlet is connected to the inlet of the discharge module;

[0018] The pressure regulating valve 2 and the back pressure valve 26 cooperate to make the gas pressure entering the reaction module and the product pressure entering the discharge module reach the specified pressure.

[0019] Preferably, the gas raw material supply module is further improved to include:

[0020] A branch pump 6, which is connected to two ends of the first three-way connection 5 through a first control valve 7;

[0021] The first three-way connection 5 has a third end connected to the inlet of the second one-way valve 8;

[0022] The outlet of the second check valve 8 is formed as a supply port of the gas raw material supply module.

[0023] The branch pump 6, the first three-way valve 5 and the second one-way valve 8 are used to prevent the gas raw material supply module from being blocked.

[0024] In order to solve the above technical problems, the present invention provides a gas reaction device, which is supplied with gas raw materials by the gas raw material supply module, and further comprises:

[0025] A raw material supply module, whose inlet is connected to a plurality of raw material bottles 9, and whose outlet is connected to a first end of a mixer 11 through a third one-way valve 10;

[0026] The mixer 11 has a second end connected to the supply port of the gas raw material supply module and a third end connected to the reaction module for supplying a variety of reaction raw materials;

[0027] A gas raw material supply module, which is used to supply a gas at a specified flow rate for the reaction;

[0028] A reaction module having a plurality of reactors and an inlet thereof for providing a reaction environment;

[0029] A discharge module having a plurality of product bottles.

[0030] Preferably, the gas reaction equipment is further improved, and the raw material supply module comprises:

[0031] A second control valve 12, whose inlet is connected to a plurality of raw material bottles 9, is used to control the switching of reactants in different raw material bottles;

[0032] A main pump 13, which is connected to the outlet of the first control valve 12, and whose outlet is connected to the inlet of the third one-way valve 10, and is used for extracting and transporting raw materials;

[0033] The emptying device is connected to the outlet pipeline of the main pump 13.

[0034] Preferably, the gas reaction equipment is further improved, and the exhaust device comprises:

[0035] A third control valve 14, which is connected to the outlet pipeline of the main pump 13 and is used to switch between the raw material reaction channel and the exhaust channel;

[0036] The second three-way connection 15 is connected to the third control valve 14, the waste liquid bottle 16 and the syringe pump 17 respectively;

[0037] A syringe pump 17, which performs an evacuation action.

[0038] Preferably, the gas reaction device is further improved, and the reaction module comprises:

[0039] A fourth control valve 18, whose inlet is connected to the third end of the mixer 11, and whose outlet is connected to a plurality of reactors 19, and is used to control different reactants to be input into a designated reactor;

[0040] A plurality of reactors 19, which provide an environment for the reaction;

[0041] A temperature control device 20, which is coated on the reactor 19 and provides a reaction temperature for the reactor 19;

[0042] The fifth control valve 21 has an inlet connected to the outlets of the plurality of reactors 20 and an outlet connected to the discharge module.

[0043] Preferably, the gas reaction equipment is further improved, and the discharge module comprises:

[0044] The sixth control valve 22 has an inlet connected to the reaction module, and an outlet connected to a plurality of product bottles 23 .

[0045] Preferably, the gas reaction device is further improved to include:

[0046] A first pressure transmitter 24 connected between the outlet of the pressure regulating valve 2 and the inlet of the mass flow controller 3;

[0047] The second pressure transmitter 25 is connected between the third one-way valve 10 and the reaction module.

[0048] Preferably, the gas reaction equipment is further improved so that the raw material supply module and the discharge module also have a bubble detection device.

[0049] Preferably, the gas reaction equipment is further improved, and the first bubble detection device 27 is arranged between the first control valve 12 and the main pump 13, which is used to determine whether there is still material in the material bottle;

[0050] The second bubble detection device 28 is disposed between the back pressure valve 26 and the sixth control valve 22, and is used to monitor whether there are bubbles in the discharge channel.

[0051] The gas raw material supply module of the present invention adjusts the pressure regulating valve and the back pressure valve so that the gas pressure entering the reaction module and the product pressure entering the discharge module meet the design requirements, ensuring that the gas reaction production can be accurately controlled.

[0052] The present invention realizes the switching of loading, switching of reactions and switching of discharging of different reactants through structural design. In conjunction with the corresponding operating process (the process can be manually operated or automatically implemented by a controller), the present invention can theoretically realize an unlimited number of continuous reactions. However, in actual production, due to the limitations of manual operation, controllers and equipment conditions (site, safety, etc.), under the premise of saving costs, ensuring safe production and not increasing the volume of equipment, the maximum number of hydrogenation reactions that can be completed continuously in a single loading is actually limited. The present invention can perform up to 5 hydrogenation reactions continuously in a single loading, automatically switching between reactions, and each set of reaction conditions is independent of each other. During the reaction process, various data can be monitored in real time by isomorphic data acquisition, or can be viewed remotely, and a parameter curve is formed after the reaction. The present invention can achieve 7×24 hours of continuous operation, significantly improving production efficiency compared to existing equipment, and more specifically at least achieving the following technical effects:

[0053] 1. Reduce manual operation on the equipment, reduce the complexity of equipment operation, and improve the safety of experimenters.

[0054] 2. The number of reaction channels has been greatly increased, from only being able to conduct one experiment at a time to being able to automatically switch channels continuously to complete up to 5 experiments.

[0055] 3. The structural design can simplify the cleaning process, changing from manual repeated cleaning of pipelines to control valve switching channels, reducing manpower investment in pipeline cleaning.

[0056] 4. By setting the first pressure transmitter and the second pressure transmitter to realize the abnormal shutdown alarm function, if the reaction system has abnormalities (flow rate, pressure, temperature, etc.), the alarm can be realized and the relevant equipment can be shut down, thus avoiding the waste of materials and reducing the potential risks caused by hydrogen leakage.

[0057] 5. Increase the flexibility between different reactions. The pump flow rate, MFC flow rate and system pressure between different reactions can be controlled (manually or automatically), and the flow rate and pressure can also be adjusted as needed after the reaction is switched.

[0058] 6. Automatically switch between reactions and determine whether to proceed to the next step through the bubble sensor detection signal.

[0059] 7. Increase the controllability of the reaction system and achieve precise control of gas reactions (especially hydrogenation reactions) through the combination of a one-way valve and a control valve.

[0060] The preferred structure and specific working process of the present invention are explained in detail in the subsequent specific embodiments. BRIEF DESCRIPTION OF THE DRAWINGS

[0061] The drawings of the present invention are intended to illustrate the general characteristics of the methods, structures and / or materials used in specific exemplary embodiments of the present invention, and to supplement the description in the specification. However, the drawings of the present invention are schematic diagrams not drawn to scale, and thus may not accurately reflect the precise structure or performance characteristics of any given embodiment, and the drawings of the present invention should not be interpreted as limiting or restricting the range of values ​​or properties covered by the exemplary embodiments of the present invention. The present invention is further described in detail below in conjunction with the drawings and specific embodiments:

[0062] Figure 1 It is a schematic diagram of the structure of existing gas reaction equipment.

[0063] Figure 2 The structure of the gas raw material supply module of the present invention is shown in FIG. Figure 1 .

[0064] Figure 3 Schematic diagram of the structure of the gas raw material supply module of the present invention Figure 2 .

[0065] Figure 4 A schematic structural diagram of a preferred embodiment of the gas reaction device of the present invention.

[0066] Figure 5 Schematic diagram of the arrangement structure of the gas reaction equipment of the present invention Figure 1 .

[0067] Figure 6 Schematic diagram of the arrangement structure of the gas reaction equipment of the present invention Figure 2 .

[0068] Figure 7 Schematic diagram of the layout structure of the gas reaction equipment of the invention Figure 3 .

[0069] Figure 8 Schematic diagram of the layout structure of the gas reaction equipment of the invention Figure 4 .

[0070] Fig. 9 Schematic diagram of the layout structure of the gas reaction equipment of the invention Figure 5 .

[0071] Fig.10 Schematic diagram of the layout structure of the gas reaction equipment of the invention Figure 6 .

[0072] Fig.11 Schematic diagram of the arrangement structure of the gas reaction equipment of the present invention Figure 7 .

[0073] Description of reference numerals:

[0074] A is N2

[0075] B is the hydrogen generator

[0076] C is a ball valve

[0077] D Pressure reducing valve

[0078] E is a three-way valve

[0079] F is tee

[0080] G is a one-way valve

[0081] H is a manual back pressure valve

[0082] I is the solvent bottle

[0083] 1 is the gas generator

[0084] 2 is the pressure regulating valve

[0085] 3 is the mass flow controller

[0086] 4 is the first check valve

[0087] 5 is the first three links

[0088] 6 is a pump

[0089] 7 is the first control valve

[0090] 8 is the second one-way valve

[0091] 9 is the raw material bottle

[0092] 10 is the third one-way valve

[0093] 11 is mixer mixer

[0094] 12 is the second control valve

[0095] 13 is the main pump

[0096] 14 is the third control valve

[0097] 15 is the second three links

[0098] 16 is the waste liquid bottle

[0099] 17 is syringe pump

[0100] 18 is the fourth control valve

[0101] 19 is the reactor

[0102] 20 is a temperature control device

[0103] 21 is the fifth control valve

[0104] 22 is the sixth control valve

[0105] 23 is the product bottle

[0106] 24 is the first pressure transmitter

[0107] 25 is the second pressure transmitter

[0108] 26 is the back pressure valve

[0109] 27 is the first bubble detection device

[0110] 28 is a second bubble detection device

[0111] 29 is the import and export of raw materials

[0112] 30 is the pressure adjustment button

[0113] 31 is the display screen

[0114] 32 is the gas inlet and outlet

[0115] 33 is a housing. DETAILED DESCRIPTION

[0116] The following is an explanation of the embodiments of the present invention by specific specific embodiments, and those skilled in the art can fully understand other advantages and technical effects of the present invention from the contents disclosed in this specification. The present invention can also be implemented or applied through different specific embodiments, and the details in this specification can also be applied based on different viewpoints, and various modifications or changes can be made without deviating from the general design concept of the invention. It should be noted that, in the absence of conflict, the following embodiments and the features in the embodiments can be combined with each other. The following exemplary embodiments of the present invention can be implemented in a variety of different forms and should not be interpreted as being limited to the specific embodiments described here. It should be understood that these embodiments are provided to make the disclosure of the present invention thorough and complete, and to fully convey the technical solutions of these exemplary specific embodiments to those skilled in the art. It should be understood that when an element is referred to as "connected" or "coupled" to another element, the element can be directly connected or coupled to another element, or there can be an intermediate element. The difference is that when an element is referred to as "directly connected" or "directly coupled" to another element, there is no intermediate element. In all the drawings, the same reference numerals always represent the same elements.

[0117] First embodiment, reference Figure 2 As shown, the present invention provides a gas raw material supply module, comprising:

[0118] The gas generator 1 is connected to the inlet of the mass flow controller 3 via the pressure regulating valve 2; in this embodiment, the pressure regulating valve 2 is an automatic pressure reducing valve;

[0119] The mass flow controller 3, whose outlet is connected to the inlet of the first one-way valve 4, and the outlet of the first one-way valve 4 serves as the supply port of the raw material supply module;

[0120] The back pressure valve 26 is an electronic back pressure valve, the inlet of which is connected to the outlet of the reaction module, and the outlet of which is connected to the inlet of the discharge module;

[0121] The pressure regulating valve 2 and the back pressure valve 26 cooperate to make the gas pressure entering the reaction module and the product pressure entering the discharge module reach the specified pressure.

[0122] The second embodiment, referring to Figure 3 The present invention provides a gas raw material supply module, which is a further improvement on the above first embodiment, and the same parts are not repeated here, and further includes:

[0123] A branch pump 6, which is connected to two ends of the first three-way connection 5 through a first control valve 7;

[0124] The first three-way connection 5 has a third end connected to the inlet of the second one-way valve 8;

[0125] The outlet of the second check valve 8 is formed as a supply port of the gas raw material supply module.

[0126] In addition, it should also be understood that, although the terms "first", "second", etc. may be used here to describe different elements, components, regions, layers and / or parts, these elements, components, regions, layers and / or parts should not be limited by these terms. These terms are only used to distinguish an element, component, region, layer or part from another element, component, region, layer or part. Therefore, without departing from the teachings of exemplary embodiments of the present invention, the first element, component, region, layer or part discussed below may also be referred to as the second element, component, region, layer or part.

[0127] The third embodiment, referring to Figure 4 The present invention provides a gas reaction device, which is supplied with gas raw materials by the raw material supply device described in the first embodiment or the second embodiment, and further includes:

[0128] The raw material supply module, whose inlet is connected to a plurality of raw material bottles 9, and whose outlet is connected to the first end of the mixer 11 through a third one-way valve 10, comprises:

[0129] The second control valve 12 is a normal pressure six-way valve, the inlet of which is connected to a plurality of raw material bottles 9, and is used to control the switching of reactants in different raw material bottles;

[0130] A main pump 13, which is connected to the outlet of the first control valve 12, and whose outlet is connected to the inlet of the third one-way valve 10, and is used for extracting and transporting raw materials;

[0131] The emptying device is connected to the outlet pipeline of the main pump 13.

[0132] Preferably, the emptying device comprises:

[0133] The third control valve 14 is a high-pressure six-way valve connected to the outlet pipeline of the main pump 13 and is used to switch the raw material reaction channel and the emptying channel;

[0134] The second three-way connection 15 is connected to the third control valve 14, the waste liquid bottle 16 and the syringe pump 17 respectively;

[0135] a syringe pump 17, which performs an emptying action;

[0136] The mixer 11 has a second end connected to the supply port of the gas raw material supply module and a third end connected to the reaction module for supplying a variety of reaction raw materials;

[0137] A gas raw material supply module, which is used to supply a gas at a specified flow rate for the reaction;

[0138] The reaction module has a plurality of reactors, and its inlet is used to provide a reaction environment, including:

[0139] A fourth control valve 18, which is a high-pressure six-way valve, whose inlet is connected to the third end of the mixer 11, and whose outlet is connected to a plurality of reactors 19, and is used to control different reactants to be input into a designated reactor;

[0140] A plurality of reactors 19, which provide an environment for the reaction;

[0141] A temperature control device 20, which is coated on the reactor 19 and provides a reaction temperature for the reactor 19;

[0142] A fifth control valve 21, which is a normal pressure six-way valve, whose inlet is connected to the outlets of the multiple reactors 20, and whose outlet is connected to the discharge module;

[0143] A discharge module having a plurality of product bottles, comprising:

[0144] The sixth control valve 22 has an inlet connected to the reaction module, and an outlet connected to a plurality of product bottles 23 .

[0145] Preferably, the third embodiment is further improved, further comprising:

[0146] A first pressure transmitter 24 connected between the outlet of the pressure regulating valve 2 and the inlet of the mass flow controller 3;

[0147] The second pressure transmitter 25 is connected between the third one-way valve 10 and the reaction module.

[0148] The back pressure valve 26 of the present invention is monitored and adjusted in real time through the second pressure transmitter 25 connected in series at its front end;

[0149] Adding the first pressure transmitter 24 and the second pressure transmitter 25 can also add the following judgment functions:

[0150] 1. When the pressure of the second pressure transmitter 25 increases, the equipment initially believes that the reactor is blocked, and the equipment switches to the cleaning pipeline (cleaning liquid-reactor empty pipe-waste liquid). If the pressure of the second pressure transmitter 25 decreases, the cleaning operation is completed and switched to the second reaction. If the pressure of the second pressure transmitter 25 continues to rise, it means that the main pipeline of the reactor is blocked and the equipment is shut down for processing.

[0151] 2. When the first pressure transmitter 24 drops seriously (for example, greater than the set threshold), it indicates that there is a problem with the hydrogen gas source and the equipment is shut down for processing.

[0152] Fourth embodiment;

[0153] Based on the principle of the third embodiment described above, the present invention provides a preferred layout of the gas reaction equipment, referring to Figures 5 to 11 As shown;

[0154] Providing a frame structure;

[0155] The raw material bottles of the raw material supply module are arranged beside the frame structure, and the various connecting components and control parts of the raw material supply module: six-way valve, main pump, emptying device, one-way valve and three-way valve, etc. are arranged in the equipment housing on the upper part of the frame structure according to actual space requirements without special restrictions;

[0156] The connected components and control parts of the gas raw material supply module: the pressure reducing valve, mass flow controller, branch pump, one-way valve, ball valve, etc. are arranged in the shell on the upper part of the frame structure according to the actual space requirements without special restrictions; the back pressure valve, its inlet is connected to the outlet of the reaction module through a pipeline, and its outlet is connected to the inlet of the discharge module through a pipeline; the components and control parts of the gas raw material supply module are connected to the gas generator through the gas inlet and outlet;

[0157] The temperature control device of the reaction module is arranged beside the frame structure, and the various connecting components and control parts of the reaction module: the control valve and the controller of the connecting temperature control device are arranged in the housing on the upper part of the frame structure according to the actual space requirements without special restrictions;

[0158] The product bottles of the discharge module are arranged at the lower part of the frame structure, and the connecting components and control parts of the discharge module: control valves and controllers, etc. are arranged in the shell at the upper part of the frame structure according to actual space requirements without any special restrictions.

[0159] That is to say, a frame structure can be provided according to actual space requirements, and an equipment shell can be installed on the upper part of the frame structure. The control parts (display screen, buttons, control valves, etc.) of the frame structure, gas raw material supply module, reaction module and discharge module can be arranged in the equipment shell. The raw material bottle can be arranged on one side of the frame structure, the temperature control device and the reactor can be arranged on the other side of the frame structure, and the product bottle can be arranged at the lower part of the frame structure.

[0160] Unless otherwise defined, all terms (including technical and scientific terms) used herein have the same meaning as those commonly understood by those skilled in the art to which the present invention belongs. It will also be understood that, unless expressly defined herein, terms such as those defined in general dictionaries should be interpreted as having a meaning consistent with their meaning in the context of the relevant art, and not interpreted in an ideal or overly formal sense.

[0161] The present invention has been described in detail above through specific implementation modes and embodiments, but these do not constitute limitations of the present invention. Without departing from the principles of the present invention, those skilled in the art may also make many variations and improvements, which should also be regarded as the protection scope of the present invention.

Claims

1. A gas raw material supply module, characterized in that: include: A gas generator (1) connected to an inlet of a mass flow controller (3) via a pressure regulating valve (2); A mass flow controller (3), the outlet of which is connected to the inlet of a first one-way valve (4), and the outlet of the first one-way valve (4) serves as a supply port for a raw material supply module; A back pressure valve (26), the inlet of which is connected to the outlet of the reaction module, and the outlet of which is connected to the inlet of the discharge module; The pressure regulating valve (2) and the back pressure valve (26) cooperate to ensure that the pressure of the gas entering the reaction module and the pressure of the product entering the discharge module reach the specified pressure.

2. The gas raw material supply module according to claim 1, characterized in that: Also includes: A branch pump (6) connected to two ends of the first three-way valve (5) through a first control valve (7); A first three-way connection (5), a third end of which is connected to an inlet of a second one-way valve (8); The outlet of the second one-way valve (8) is formed as a supply port of the gas raw material supply module.

3. A gas reaction device, wherein the gas raw material is supplied by the gas raw material supply module according to claim 1, characterized in that: Also includes: A raw material supply module, the inlet of which is connected to a plurality of raw material bottles (9), and the outlet of which is connected to the first end of a mixer (11) via a third one-way valve (10); A mixer (11), a second end of which is connected to a supply port of a gas raw material supply module, and a third end of which is connected to a reaction module, for supplying a plurality of reaction raw materials; A gas raw material supply module, which is used to supply a gas at a specified flow rate for the reaction; A reaction module having a plurality of reactors and an inlet thereof for providing a reaction environment; A discharge module having a plurality of product bottles.

4. The gas reaction device according to claim 3, characterized in that: The raw material supply module includes: A second control valve (12), the inlet of which is connected to a plurality of raw material bottles (9), and is used to control the switching of reactants in different raw material bottles; A main pump (13), which is connected to the outlet of the first control valve (12), and whose outlet is connected to the inlet of the third one-way valve (10), and is used for extracting and transporting raw materials; The emptying device is connected to the outlet pipeline of the main pump (13).

5. The gas reaction device according to claim 4, characterized in that: The emptying device includes: A third control valve (14), which is connected to the outlet pipeline of the main pump (13) and is used to switch between the raw material reaction channel and the exhaust channel; A second three-way valve (15) is connected to the third control valve (14), the waste liquid bottle (16) and the syringe pump (17) respectively; A syringe pump (17) which performs the evacuation action.

6. The gas reaction device according to claim 3, characterized in that: The reaction module includes: a fourth control valve (18), whose inlet is connected to the third end of the mixer (11) and whose outlet is connected to the plurality of reactors (19), and which is used to control the input of different reactants into a designated reactor; A plurality of reactors (19) which provide an environment for the reaction; A temperature control device (20), which is coated on the reactor (19) and provides a reaction temperature for the reactor (19); The fifth control valve (21) has an inlet connected to the outlets of the plurality of reactors (20) and an outlet connected to the discharge module.

7. The gas reaction device according to claim 3, characterized in that: The discharging module includes: The sixth control valve (22) has an inlet connected to the reaction module and an outlet connected to a plurality of product bottles (23).

8. The gas reaction device according to any one of claims 3 to 7, characterized in that: Also includes: A first pressure transmitter (24) connected between the outlet of the pressure regulating valve (2) and the inlet of the mass flow controller (3); The second pressure transmitter (25) is connected between the third one-way valve (10) and the reaction module.

9. The gas reaction device according to claim 7, characterized in that: The raw material supply module and the discharging module also have a bubble detection device.

10. The gas reaction device according to claim 9, characterized in that: A first bubble detection device (27), arranged between the first control valve (12) and the main pump (13), is used to determine whether there is still material in the material bottle; The second bubble detection device (28) is arranged between the back pressure valve (26) and the sixth control valve (22), and is used to monitor whether there are bubbles in the discharge channel.

Images