High-temperature high-pressure reaction kettle

Abstract

The application discloses a high-temperature and high-pressure reaction kettle, which comprises at least one isolation device arranged in a high-temperature reaction kettle body, wherein the isolation device is provided with a waterproof and air-permeable filter membrane, and the high-temperature reaction kettle body is formed into at least two kettle body spaces with the same temperature and pressure through the isolation device and the waterproof and air-permeable filter membrane. The high-temperature reaction kettle body is formed into at least two kettle body spaces with the same temperature and pressure through the isolation device, so that the water-rock reaction of powder / block / cylinder samples or samples with different lithology can occur under the same reaction kettle and the same temperature and pressure, and the experimental efficiency is improved.

Description

Technical Field

[0001] This invention relates to water-rock reaction experimental technology, specifically a high-temperature and high-pressure reactor. Background Technology

[0002] A high-temperature and high-pressure reactor is a container that utilizes enclosed heating to conduct chemical and chemical reaction experiments. It can carry out chemical reactions within a set pressure and temperature range and is a device for conducting various chemical reaction experiments.

[0003] The interaction between samples of different specifications and lithologies in the same high-temperature and high-pressure reactor of existing technology can have a significant impact on the experimental results. Furthermore, the temperature rise and fall time is long when carrying out water-rock reaction, resulting in a long overall experimental cycle. Summary of the Invention

[0004] In view of the defects existing in the high-temperature and high-pressure reactors in the prior art, and in order to overcome at least one of the defects, the present invention provides a high-temperature and high-pressure reactor, which includes at least one isolation device disposed in the reactor body;

[0005] The isolation device is equipped with a waterproof and breathable filter membrane, which enables the high-temperature reactor to form at least two reactor spaces with the same temperature and pressure.

[0006] In this embodiment of the invention, the inner wall of the high-temperature reactor is provided with a slot;

[0007] The isolation device is fixed to the inner wall of the high-temperature reactor body via a slot.

[0008] In this embodiment of the invention, the waterproof and breathable filter membrane includes: a polytetrafluoroethylene filter membrane or a polyurethane / polyvinylidene fluoride blend membrane.

[0009] In this embodiment of the invention, the isolation device includes: a fixing frame and a filter membrane clamping device;

[0010] The isolation device is fixed to the inner wall of the high-temperature reactor by a fixing frame, and the waterproof and breathable filter membrane is fixed to the fixing frame by a filter membrane clip device.

[0011] In this embodiment of the invention, the high-temperature and high-pressure reactor includes: an outer layer of the reactor, an inner side of the reactor, a water inlet, and a water return outlet; wherein,

[0012] The outer layer and the inner side of the reactor form a high-temperature and high-pressure reactor body with a double-layer structure. Water is injected through the water inlet and discharged through the water return hole to adjust the temperature of the reactor body.

[0013] In this embodiment of the invention, both the water inlet and the water outlet are equipped with one-way valves.

[0014] In this embodiment of the invention, the high-temperature and high-pressure reactor further includes a heating tube disposed on the inner wall of the reactor body.

[0015] In this embodiment of the invention, the high-temperature and high-pressure reactor further includes a temperature sensor disposed on the inner wall of the reactor body.

[0016] In this embodiment of the invention, the high-temperature and high-pressure reactor further includes a rotating device disposed between the reactor body and the mounting column of the high-temperature and high-pressure reactor, so that the reactor body of the high-temperature and high-pressure reactor can rotate around the mounting column.

[0017] In this embodiment of the invention, the upper half of the high-temperature and high-pressure reactor body is funnel-shaped, and the lower half is cylindrical.

[0018] The high-temperature and high-pressure reactor provided by this invention uses an isolation device to form at least two reactor bodies with the same temperature and pressure. This solves the problem that the interaction between samples of different lithologies in the same reactor can have a significant impact on experimental results in the prior art. It allows powder / block / column samples or samples of different lithologies to undergo water-rock reaction under the same reactor and temperature and pressure conditions, thereby improving experimental efficiency.

[0019] To make the above and other objects, features and advantages of the present invention more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0020] 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 some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0021] Figure 1 This is a schematic cross-sectional view of the high-temperature and high-pressure reactor provided by the present invention;

[0022] Figure 2 This is a top view schematic diagram of the high-temperature and high-pressure reactor provided by the present invention;

[0023] Figure 3 A schematic diagram of the high-temperature and high-pressure reactor provided by the present invention.

[0024] Symbol explanation:

[0025] 1: Pot or container; 2: Sealing lid;

[0026] 3: Sealing cap; 4: Collar ring;

[0027] 5: Mounting column; 6: Pressure gauge connecting nut;

[0028] 7: Air injection pipe; 8: Water inlet;

[0029] 9: Water inlet pipe; 10: Water return hole;

[0030] 11: Return water pipe; 12: Check valve;

[0031] 13: Rotating shaft; 14: Reactor lid;

[0032] 15: Inner layer of the reactor; 16: Outer layer of the reactor;

[0033] 17: Card slot; 18: Mounting bracket;

[0034] 19: Polytetrafluoroethylene filter membrane;

[0035] 20: Heating element; 21: Temperature and pressure sensor. Detailed Implementation

[0036] 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.

[0037] Existing high-temperature and high-pressure reactors are mainly single-unit reactors. The interaction between samples of different specifications and lithologies in the same reactor can have a significant impact on the experimental results. In view of this, this invention proposes a separable high-temperature and high-pressure reactor to meet the requirements of water-rock reaction under the same temperature and pressure conditions for powder / block / column samples or different lithologies in the same reactor.

[0038] Specifically, the present invention provides a high-temperature and high-pressure reactor, which includes at least one isolation device disposed within the reactor body;

[0039] The isolation device is equipped with a waterproof and breathable filter membrane, which enables the high-temperature reactor to form at least two reactor bodies with the same temperature and pressure.

[0040] like Figure 1The diagram shown is a schematic of the high-temperature and high-pressure reactor provided by the present invention. The reactor 1 is equipped with a fixing frame 18 and a separable device (isolation device) composed of the fixing frame 18 and a polytetrafluoroethylene filter membrane 19. This isolation device allows two reactor bodies to be formed under the same temperature and pressure conditions within the reactor. This satisfies the requirement that powder / block / column samples or samples of different lithologies undergo water-rock reaction under the same reactor and temperature and pressure conditions.

[0041] Furthermore, the high-temperature and high-pressure reactor provided by the present invention includes an isolation device comprising: a fixing frame and a filter membrane clamping device; the isolation device is fixed to the inner wall of the high-temperature reactor by the fixing frame, and the waterproof and breathable filter membrane is fixed to the fixing frame by the filter membrane clamping device.

[0042] Specifically, in one embodiment of the present invention, the polytetrafluoroethylene filter membrane 19 is fixed to the fixing frame 18, and the fixing frame 18 is set on the inner wall of the vessel through the slot 17, that is, the fixing frame 18 and the slot 17 are connected by a snap fastener, and are connected to the polytetrafluoroethylene filter membrane 19 clip.

[0043] Specifically, the fixing frame 18 can be integrated with the slot 17 to form a separable device (isolation device) with the polytetrafluoroethylene filter membrane 19. In this embodiment of the invention, the separation device is fixed inside the vessel body by welding or by using nuts at the connection between the fixing frame and the inner wall.

[0044] In addition, the upper half of the high-temperature reactor body in this embodiment of the invention has an inverted triangular cross-sectional view, that is, the upper half of the high-temperature and high-pressure reactor body is funnel-shaped and the lower half is cylindrical, which is different from the shape of the reactor body in the prior art. By setting the shape of the reactor body in this embodiment of the invention, on the one hand, the upper and lower reactors can have the same reaction volume when the reactor bodies are separated, and on the other hand, the area and consumption of the polytetrafluoroethylene filter membrane 19 of the separable device are reduced, thereby reducing economic costs.

[0045] Polytetrafluoroethylene (PTFE) membranes are porous products obtained by extruding PTFE rods or strips into semi-finished films, calendering them, and then stretching and heat-setting them at temperatures below their melting point. The surface morphology of the microporous membrane has a spiderweb-like microporous structure, which allows for air permeability but not water permeability. PTFE air filter membranes have properties such as nodal fibrillation, smooth surface, chemical resistance, air permeability but not water permeability, high air permeability, flame retardancy, high temperature resistance, resistance to strong acids and alkalis, and non-toxicity.

[0046] In one embodiment of the present invention, a polytetrafluoroethylene filter membrane 19 is used as the filter membrane. Its micropore size is tens of thousands of times larger than that of water molecules and hundreds of times smaller than that of water droplets. It has excellent air permeability and waterproof performance. It is made by biaxial stretching process and has excellent anti-corrosion, anti-aging and high temperature resistance.

[0047] In one embodiment of the present invention, a polyurethane / polyvinylidene fluoride (PU / PVDF) blend membrane is used as a filter membrane.

[0048] In one embodiment of the present invention, the blend membrane is prepared by a wet phase inversion method, specifically including:

[0049] In a casting solution using DMF (N,N-dimethylformamide) as the solvent, the total mass ratio of PU and PVDF is maintained at 15%, and the mixture is continuously stirred at room temperature until completely dissolved to obtain the casting solution.

[0050] After vacuum degassing, a uniform casting solution with a thickness of 0.4 mm is scraped onto a dry and clean glass plate and immediately immersed in deionized water for 48 hours.

[0051] After the casting solution is separated into phases to form a film, the solvent on the surface of the film is washed off with clean water and set aside for use.

[0052] In this embodiment, the polyurethane (PU) film and coating have both waterproof and breathable functions. The raw material is inexpensive and readily available, the film is simple to make, and it has excellent mechanical properties, good biological properties, and good chemical stability. Polyvinylidene fluoride (PVDF) has a very low surface energy, strong hydrophobicity, and good chemical stability, weather resistance, heat resistance, and mechanical properties. It is not corroded by acids, alkalis, strong oxidants, and halogens at room temperature, and its performance is relatively stable in organic solvents such as aliphatic hydrocarbons, aromatic hydrocarbons, alcohols, and aldehydes.

[0053] For those skilled in the art, all replaceable polytetrafluoroethylene filter membranes with breathable and waterproof properties are included in the embodiments of the present invention, but are not limited to the contents described in the embodiments of the present invention.

[0054] In practical use, the core column is placed in the lower layer of the reactor, the polytetrafluoroethylene filter membrane is connected to the fixing frame, the fixing frame is installed into the slot, the powder sample is placed in the upper layer of the reactor, the injection pipe, the water inlet pipe, the water return pipe and the one-way valve are connected, the reactor cover 14, the sealing cover 3 and the sealing cover 2 are closed in sequence, the collar 4 is installed to fix the mounting column 5, the water inlet hole 8 is connected to the water inlet pipe 9, the water return hole 10 is connected to the water return pipe 11, the pressure gauge is connected to the pressure gauge connection nut 6 of the gas injection pipe, and the pressure gauge is used to check for any gas leakage during the gas injection process.

[0055] Furthermore, the high-temperature and high-pressure reactor provided by the present invention has a double-layer structure, and the reactor body further includes: an outer reactor layer 16 and an inner reactor layer 15; wherein,

[0056] The outer layer 16 and the inner layer 15 of the reactor form a high-temperature and high-pressure reactor body with a double-layer structure. Water is injected through the water inlet and discharged through the water return hole to adjust the temperature of the reactor body.

[0057] This invention cools or heats the hollow vessel by injecting circulating water into it, thus solving the problem of long temperature rise and fall times and overall long test cycles in existing technologies for water-rock reactions under high-temperature conditions. The double-layered vessel structure reduces the heating time and heat loss of the inner layer, and the flow of water between the inner and outer vessels after the reaction quickly lowers the temperature of the reaction vessel, thus accelerating the start-up and use of the equipment after the reaction.

[0058] In addition, in this embodiment of the invention, the inlet and outlet of the vessel are equipped with one-way valves 12, which determines the direction of water flow in the vessel jacket and ensures smooth water circulation, thereby providing the overall cooling or heating effect of the vessel.

[0059] Furthermore, the high-temperature and high-pressure reactor provided by the present invention also includes a heating tube 20 and a temperature sensor 21, both of which are disposed on the inner wall of the reactor.

[0060] The temperature of the vessel is monitored while the heating element and temperature sensor heat or cool it.

[0061] The high-temperature and high-pressure reactor provided by the present invention further includes a rotating device, which is disposed between the reactor body and the mounting column of the high-temperature and high-pressure reactor, so that the reactor body of the high-temperature and high-pressure reactor can rotate around the mounting column.

[0062] like Figure 1 As shown, the connection between the mounting column 5 and the reactor cover is a rotating shaft 13. The rotating shaft 13 can control the overall rotation of the reactor, thereby playing a centrifugal stirring role and accelerating the reaction rate.

[0063] Specifically, in this embodiment, the mounting column 5 and the rotating shaft 13 serve as the rotating device. The mounting column 5 is connected to the reactor cover connection point via the rotating shaft 13, which drives the entire reactor to rotate. The mounting column 5 is connected to the reactor body via a roller structure, thus achieving the rotation of the reactor body without occupying internal space, thereby achieving the effect of centrifugal stirring. During the specific operation, it should be ensured that there is no water in the inner and outer layers of the reactor before rotation. Water should not be injected into the inner and outer layers of the reactor during rotation to avoid affecting the rotation of the reactor.

[0064] The present invention designs a roller structure at the contact point between the mounting column and the reactor body, which enables the reactor body to rotate without occupying the internal space of the reactor, thereby playing a centrifugal stirring role.

[0065] Preferred embodiments of the invention have been described above with reference to the accompanying drawings. Many features and advantages of these embodiments are apparent from this detailed description, and therefore the appended claims are intended to cover all such features and advantages of these embodiments that fall within their true spirit and scope. Furthermore, since many modifications and alterations will readily occur to those skilled in the art, the embodiments of the invention are not intended to be limited to the precise structures and operations illustrated and described, but rather to encompass all suitable modifications and equivalents falling within their scope.

[0066] Specific embodiments have been used to illustrate the principles and implementation methods of this invention. The descriptions of the embodiments above are only for the purpose of helping to understand the method and core ideas of this invention. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this invention. Therefore, the content of this specification should not be construed as a limitation of this invention.

Claims

1. A high temperature and high pressure autoclave, characterized by, The high-temperature and high-pressure reactor includes: at least one isolation device disposed inside the high-temperature reactor body; The isolation device is equipped with a waterproof and breathable filter membrane, which allows the high-temperature reactor to form at least two reactor bodies with the same temperature and pressure through the waterproof and breathable filter membrane. The high-temperature reactor has a groove on its inner wall; The isolation device is fixed to the inner wall of the high-temperature reactor body via a slot; The high-temperature and high-pressure reactor includes: an outer layer of the reactor, an inner side of the reactor, a water inlet, and a water return outlet; wherein, The outer layer and the inner side of the reactor form a high-temperature and high-pressure reactor body with a double-layer structure. Water is injected through the water inlet and discharged through the water return hole to adjust the temperature of the reactor body. Both the water inlet and outlet are equipped with one-way valves; The high-temperature and high-pressure reactor also includes a heating tube, which is installed on the inner wall of the reactor.

2. The high-temperature and high-pressure reactor as described in claim 1, characterized in that, The waterproof and breathable filter membrane includes: polytetrafluoroethylene filter membrane or polyurethane / polyvinylidene fluoride blend membrane.

3. The high-temperature and high-pressure reactor as described in claim 1, characterized in that, The isolation device includes: a fixing frame and a filter membrane clamping device; The isolation device is fixed to the inner wall of the high-temperature reactor by a fixing frame, and the waterproof and breathable filter membrane is fixed to the fixing frame by a filter membrane clip device.

4. The high-temperature and high-pressure reactor as described in claim 1, characterized in that, The high-temperature and high-pressure reactor also includes a temperature sensor, which is installed on the inner wall of the reactor.

5. The high-temperature and high-pressure reactor as described in claim 1, characterized in that, The high-temperature and high-pressure reactor further includes a rotating device, which is disposed between the reactor body and the mounting column of the high-temperature and high-pressure reactor, so that the reactor body can rotate around the mounting column.

6. The high-temperature and high-pressure reactor as described in claim 1, characterized in that, The upper half of the high-temperature and high-pressure reactor body is funnel-shaped, and the lower half is cylindrical.

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