Automatic liquid supplementing and solid-liquid separation communicating device for producing gas through liquid-solid reaction
By designing a device that connects liquid replenishment and solid-liquid separation, and utilizing the principle of gas pressure balance, the automatic replenishment of liquid reactants and rapid control of the reaction are achieved. This solves the problems of complex liquid replenishment and cumbersome solid-liquid separation in liquid-solid reaction gas generation systems, and provides a simple and widely applicable solution.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2026-02-10
- Publication Date
- 2026-04-07
AI Technical Summary
In existing liquid-solid reaction gas generation systems, replenishing liquid reactants relies on sophisticated equipment, which is costly and complex to operate. When the reaction is terminated, solid-liquid separation is cumbersome and prone to leakage, making it difficult to achieve automation and flexible connection.
The device consists of a replenishment bottle, a reaction bottle, gas lines, and liquid lines. It utilizes the principle of gas pressure balance to achieve automatic replenishment and solid-liquid separation. The valves control the start, maintenance, and termination of the reaction, and the pipeline connection method is flexible to adapt to different reaction requirements.
It achieves automatic liquid replenishment and rapid solid-liquid separation with simple structure and low cost. It is easy to operate, has a wide range of applications, and is suitable for various liquid-solid reaction gas production systems.
Smart Images
Figure CN121797185A_ABST
Abstract
Description
Technical Field
[0001] This invention relates to the field of reaction device technology, specifically to an automatic liquid replenishment and solid-liquid separation interconnection device suitable for liquid-solid reaction gas production scenarios, and is particularly suitable for various liquid-solid reaction gas production systems such as solid catalyst catalysis of liquid reactants to produce gas and non-catalytic liquid-solid reaction gas production. Background Technology
[0002] In liquid-solid reaction gas production systems (including solid catalyst catalysis of liquid reactant gas production and non-catalytic liquid-solid reaction gas production scenarios), maintaining the continuous reaction requires a stable supply of liquid reactants, and terminating the reaction requires rapid solid-liquid separation to avoid reactant loss, side reactions, or product gas waste.
[0003] In existing technologies, replenishing liquid reactants often relies on precision equipment such as peristaltic pumps and metering pumps, which has drawbacks such as high cost, complex operation, and difficulty in matching the replenishment rate with the reaction consumption rate in real time. Solid-liquid separation at the end of the reaction often involves manually removing solid materials and emptying the reaction bottle, which is cumbersome and prone to leakage of gaseous products and material loss.
[0004] To address the aforementioned issues, there is an urgent need to develop a simple, easy-to-operate, and low-cost interconnection device that can automatically replenish liquid and rapidly separate solids and liquids, and offers flexible connection options, in order to improve the automatic replenishment of the reaction liquid and the rapid termination of the liquid-solid reaction during the gas production process. Summary of the Invention
[0005] In view of this, the present invention provides an automatic liquid replenishment and solid-liquid separation interconnection device for gas production in liquid-solid reactions, in order to solve the above-mentioned problems.
[0006] To achieve the above objectives, the present invention adopts the following technical solution: An automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in liquid-solid reactions includes: a replenishment bottle, a reaction bottle, a gas pipeline assembly, and a liquid pipeline; the replenishment bottle is a sealed container with a first sealing cap on the top for storing liquid reactants; the reaction bottle is a sealed container with a second sealing cap on the top for filling with solid materials. The gas pipeline assembly includes a gas pipeline, a first valve, a pressure gauge, a tee connector, and a second valve. One end of the gas pipeline passes through the first sealing cap and extends into the replenishment bottle, with its port flush with the bottom surface inside the cap. The other end is sequentially connected to the first valve, the pressure gauge, and the first port of the tee connector. The second port of the tee connector extends through the pipeline through the second sealing cap into the reaction flask, with its port flush with the bottom surface inside the cap. The third port of the tee connector is connected to the second valve, and the outlet of the second valve constitutes the product gas outlet. The two ends of the liquid pipeline are respectively connected to the bottom of the replenishment bottle and the reaction bottle, and are used to transport liquid between the two.
[0007] Furthermore, one end of the liquid pipeline passes through the first sealing cap and extends into the bottom of the replenishment bottle, while the other end passes through the second sealing cap and extends into the bottom of the reaction flask.
[0008] Furthermore, one end of the liquid pipeline passes through the bottom wall of the replenishment bottle and connects to the bottom of the replenishment bottle, while the other end passes through the bottom wall of the reaction bottle and connects to the bottom of the reaction bottle.
[0009] Furthermore, the solid material is a solid catalyst or a solid reactant in a non-catalytic liquid-solid reaction.
[0010] Furthermore, the diameter of the liquid pipeline is larger than the diameter of the gas pipeline.
[0011] Furthermore, the materials of the replenishment bottle, reaction bottle, first sealing cap, second sealing cap, gas pipeline, and liquid pipeline are selected from PET plastic, polytetrafluoroethylene, or metal materials.
[0012] Furthermore, the sealing method between the replenishment bottle and the first sealing cap, the sealing method between the reaction bottle and the second sealing cap, and the sealing structure at the connection between the pipeline and the sealing cap or the bottle body are threaded seals, sealing ring seals, ferrule seals, clamp seals, or welded seals.
[0013] Furthermore, the liquid pipeline is equipped with a filter screen at the port that extends into the reaction flask.
[0014] The beneficial effects of this invention are as follows: 1. Simple structure and low cost: It does not require precision equipment such as peristaltic pumps. It achieves automatic liquid replenishment and solid-liquid separation through the combination of pipelines, valves and tee joints, reducing the purchase and maintenance costs of the equipment; 2. Automatic liquid replenishment and precise matching: Based on the principle of gas pressure balance, the liquid reactants are replenished in real time, and the replenishment rate is dynamically matched with the reaction consumption rate; 3. Rapid reaction control and convenient operation: The reaction can be started, maintained, and terminated by controlling the opening and closing of two valves, making operation simple; 4. Flexible connection methods and strong adaptability: The liquid pipeline provides two connection methods, which can be selected according to the actual reaction requirements and bottle structure to adapt to different experimental or production scenarios. 5. Wide range of applications: It can be adapted to various liquid-solid reaction gas production systems, including solid catalyst catalysis of liquid reactant gas production and non-catalytic liquid-solid reaction gas production, and has good prospects for industrial application. Attached Figure Description
[0015] To more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on the provided drawings without creative effort.
[0016] Figure 1 This is a schematic diagram of an automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in a liquid-solid reaction, as described in Example 1.
[0017] Figure 2 This is a front view of an automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in a liquid-solid reaction, as described in Example 2.
[0018] In the figure: 1-Replenishment bottle; 2-Reaction flask; 3-Liquid pipeline; 4-Gas pipeline; 5-First valve; 6-Pressure gauge; 7-T-connector; 8-Second valve; 9-First sealing cap; 10-Second sealing cap; 11-Solid material; 12-Reaction liquid; 13-Filter screen. Detailed Implementation
[0019] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.
[0020] The present invention provides an automatic liquid replenishment and solid-liquid separation connection device for gas generation in liquid-solid reaction, comprising: a liquid replenishment bottle 1, a reaction bottle 2, a gas pipeline assembly and a liquid pipeline 3.
[0021] Example 1 (Liquid line 3 passes through the sealing cap for connection)
[0022] See attached document Figure 1 As shown, two 500mL PET plastic sealed bottles are selected as replenishment bottle 1 and reaction bottle 2, respectively. Replenishment bottle 1 and the first sealing cap 9, as well as reaction bottle 2 and the second sealing cap 10, adopt a threaded sealing structure. 50g of molybdenum nitride catalyst (solid material 11, particle size greater than 2mm) is filled into reaction bottle 2 and spread flat 4mm above the bottom of the bottle. 450mL of formic acid is added to replenishment bottle 1 as reaction liquid 12.
[0023] Liquid line 3 is a flexible polytetrafluoroethylene line with an inner diameter of 6mm. One end passes through the reserved hole of the threaded sealing cap of replenishment bottle 1, and the port is 3mm away from the bottom of replenishment bottle 1 (close to the bottom of the bottle). The other end passes through the reserved hole of the threaded sealing cap of reaction bottle 2 and extends to 2mm above the bottom of the inner bottle of reaction bottle 2. A filter screen 13 (pore size 1000μm) is installed at the port inside reaction bottle 2 to prevent molybdenum nitride catalyst from clogging the line. Gas line 4 is made of PTFE tubing with an inner diameter of 4mm. One end passes through the other reserved hole in the threaded sealing cap of replenishment bottle 1, with the port flush with the bottom surface of the cap. The other end is connected in sequence to the first interface of the first valve 5 (PTFE ball valve), pressure gauge 6 (range 0~0.5MPa, accuracy 0.01MPa), and tee connector 7 (PTFE). The second interface of tee connector 7 is connected to the gas outlet line of reaction bottle 2 (PTFE tubing, inner diameter 4mm), which passes through the reserved hole in the threaded sealing cap of reaction bottle 2, with the port flush with the bottom surface of the cap. The third interface of tee connector 7 is connected to the second valve 8 (PTFE ball valve), and the outlet end of the second valve 8 is connected to the product gas outlet (PTFE short tube). All connections between pipelines and the pre-drilled holes of the threaded sealing caps are fitted with fluororubber sealing rings, which are tightened with threads to achieve double sealing and ensure the airtightness of the device. Work process: 1. Start the reaction: With the first valve 5 closed, squeeze the replenishment bottle 1 to allow the liquid to enter the reaction bottle 2 through the liquid pipeline 3. Then open the first valve 5 to establish gas pressure balance between the two bottles, and at the same time release the squeezing pressure to connect the liquids. Open the second valve 8 to release the product gas. 2. Termination of reaction: Close the first valve 5 and the second valve 8. Gas continues to accumulate in the reaction bottle 2, and the gas pressure gradually increases. The liquid is forced back into the replenishment bottle 1, realizing the separation of the solid catalyst and the liquid, thereby stopping the reaction. 3. Resumption of reaction: Open the first valve 5 and the second valve 8 again to keep the gas pressure in the two bottles consistent. The formic acid aqueous solution in the replenishment bottle 1 flows back into the reaction bottle 2 under the drive of gravity, and the reaction resumes.
[0024] Example 2 (Liquid line 3 connected to the bottom of the bottle)
[0025] See attached document Figure 2 As shown, two 1000mL stainless steel containers are selected as replenishment bottle 1 and reaction bottle 2, respectively. Replenishment bottle 1 and the first sealing cap 9, as well as reaction bottle 2 and the second sealing cap 10, adopt a clamp sealing structure. 550g of calcium carbonate (solid material 11, particle size greater than 10mm) is filled into reaction bottle 2 and spread evenly at the bottom of the bottle. 750mL of dilute hydrochloric acid is added to replenishment bottle 1 as reaction liquid 12.
[0026] Liquid pipeline 3 is made of stainless steel with an inner diameter of 8mm. Both ends are welded to the bottom of replenishment bottle 1 and reaction bottle 2 respectively. A filter screen 13 (pore size 1000μm) is installed at the port inside reaction bottle 2 to prevent calcium carbonate from clogging the pipeline. Gas pipeline 4 is made of stainless steel with an inner diameter of 6mm. One end is connected to the gas outlet of the cap of replenishment bottle 1 via a clamp, with the port flush with the bottom surface of the cap. The other end is connected in sequence to the first valve 5 (stainless steel ball valve), pressure gauge 6 (range 0~1MPa, accuracy 0.01MPa), and the first interface of tee connector 7 (stainless steel). The second interface of tee connector 7 is connected to the gas outlet pipeline of reaction bottle 2 (stainless steel, 6mm inner diameter), which is connected to the gas outlet of the cap of reaction bottle 2 via a clamp, with the port flush with the bottom surface of the cap. The third interface of tee connector 7 is connected to the second valve 8 (stainless steel ball valve), and the outlet end of the second valve 8 is connected to the product gas outlet (stainless steel). Work process: 1. Start the reaction: Open the first valve 5 to establish pressure balance between the two bottles, so that the liquids are connected in the two bottles. The dilute hydrochloric acid in the replenishment bottle 1 flows into the reaction bottle 2 under the drive of gravity to react. Open the second valve 8 to release the product gas. 2. Termination of reaction: Close the first valve 5 and the second valve 8. Gas continues to accumulate in the reaction bottle 2, and the gas pressure gradually increases. The liquid is forced back into the replenishment bottle 1, realizing the separation of solid reactants and liquid, thereby stopping the reaction. 3. Resumption of reaction: Open the first valve 5 and the second valve 8 again to keep the gas pressure in the two bottles consistent. The dilute hydrochloric acid in the replenishment bottle 1 flows back into the reaction bottle 2 under the drive of gravity, and the reaction resumes.
[0027] The above descriptions are merely specific embodiments of the present invention, and common knowledge regarding the specific structures and characteristics of the solutions is not described in detail here. It should be noted that those skilled in the art can make various modifications and improvements without departing from the structure of the present invention, and these should also be considered within the scope of protection of the present invention. These modifications and improvements will not affect the effectiveness of the implementation of the present invention or the practicality of the patent. The scope of protection claimed in this application should 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.
[0028] The various embodiments in this specification are described in a progressive manner, with each embodiment focusing on its differences from other embodiments. Similar or identical parts between embodiments can be referred to interchangeably. For the apparatus disclosed in the embodiments, since it corresponds to the method disclosed in the embodiments, the description is relatively simple; relevant parts can be referred to the method section.
[0029] The above description of the disclosed embodiments enables those skilled in the art to make or use the invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the invention. Therefore, the invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.
Claims
1. An automatic liquid replenishment and solid-liquid separation interconnection device for gas production in liquid-solid reactions, characterized in that, include: The liquid replenishment bottle (1), reaction bottle (2), gas pipeline assembly and liquid pipeline (3); the liquid replenishment bottle (1) is a sealed container with a first sealing cap (9) on the top, used to store liquid reactants; the reaction bottle (2) is a sealed container with a second sealing cap (10) on the top, used to fill solid materials (11). The gas pipeline assembly includes a gas pipeline (4), a first valve (5), a pressure gauge (6), a three-way connector (7), and a second valve (8). One end of the gas pipeline (4) passes through the first sealing cap (9) and extends into the replenishment bottle (1), with its port flush with the bottom surface inside the cap. The other end is connected in sequence to the first valve (5), the pressure gauge (6), and the first interface of the three-way connector (7). The second interface of the three-way connector (7) passes through the pipeline through the second sealing cap (10) and extends into the reaction bottle (2), with its port flush with the bottom surface inside the cap. The third interface of the three-way connector (7) is connected to the second valve (8), and the outlet of the second valve (8) constitutes the product gas outlet. The two ends of the liquid pipeline (3) are respectively connected to the bottom of the replenishment bottle (1) and the reaction bottle (2) for transporting liquid between the two.
2. The automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in a liquid-solid reaction according to claim 1, characterized in that, One end of the liquid pipeline (3) passes through the first sealing cap (9) and extends into the bottom of the replenishment bottle (1), while the other end passes through the second sealing cap (10) and extends into the bottom of the reaction bottle (2).
3. The automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in liquid-solid reaction according to claim 1, characterized in that, One end of the liquid pipeline (3) passes through the bottom wall of the replenishment bottle (1) and connects to the bottom of the replenishment bottle (1), and the other end passes through the bottom wall of the reaction bottle (2) and connects to the bottom of the reaction bottle (2).
4. The automatic liquid replenishment and solid-liquid separation interconnection device for gas production in a liquid-solid reaction according to claim 1, characterized in that, The solid material (11) is a solid catalyst or a solid reactant in a non-catalytic liquid-solid reaction.
5. The automatic liquid replenishment and solid-liquid separation interconnection device for gas production in a liquid-solid reaction according to claim 1, characterized in that, The diameter of the liquid pipeline (3) is larger than the diameter of the gas pipeline (4).
6. The automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in a liquid-solid reaction according to claim 1, characterized in that, The materials of the replenishment bottle (1), reaction bottle (2), first sealing cap (9), second sealing cap (10), gas pipeline (4) and liquid pipeline (3) are selected from PET plastic, polytetrafluoroethylene or metal materials.
7. The automatic liquid replenishment and solid-liquid separation interconnection device for gas production in a liquid-solid reaction according to claim 1, characterized in that, The sealing forms between the replenishment bottle (1) and the first sealing cap (9), the reaction bottle (2) and the second sealing cap (10), and the sealing structures at the connection between the pipeline and the sealing cap or bottle body are threaded seals, sealing ring seals, ferrule seals, clamp seals or welded seals.
8. The automatic liquid replenishment and solid-liquid separation interconnection device for gas generation in a liquid-solid reaction according to claim 1, characterized in that, The liquid pipeline (3) is equipped with a filter screen (13) at the port that extends into the reaction flask (2).