CN209784041U - High-temperature high-pressure continuous flow loading device - Google Patents
High-temperature high-pressure continuous flow loading device Download PDFInfo
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- CN209784041U CN209784041U CN201920271296.9U CN201920271296U CN209784041U CN 209784041 U CN209784041 U CN 209784041U CN 201920271296 U CN201920271296 U CN 201920271296U CN 209784041 U CN209784041 U CN 209784041U
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Abstract
The utility model discloses a high temperature high pressure continuous flow loading device, the high pressure capillary entry that the high pressure capillary that the cauldron stopper of cauldron body upside set up exports and the cauldron stopper of downside sets up, and high pressure capillary entry linkage is to the high-pressure fluid export of fluid pressurization system, and fluid pressurization system includes fluid ordinary pressure container, pneumatic high-pressure pump, high temperature preheating device and high temperature gas accuse valve two in proper order, and the high pressure capillary export has connected gradually pressure buffer tank and adjustable pressure overflow valve. The utility model discloses pressure buffer tank and adjustable pressure overflow valve have been connected at high pressure outlet, can make entire system under the condition that flows like this, pressure can keep in a more stable within range, the effect of overflow valve is when exceeding the setting pressure, a part of fluid is emitted automatically, self-closing when pressure is less than the setting pressure, because the interior volume of autoclave is less and the mechanical structure of overflow valve, cause the pressure release easily too much to make system's pressure hang down excessively, and it is undulant at a more stable within range just to add pressure buffer tank.
Description
Technical Field
The utility model belongs to the technical field of high temperature high pressure experimental apparatus, concretely relates to high temperature high pressure continuous flow loading device.
background
Corrosion is the result of reactions that occur when metallic materials interact with the surrounding medium at a phase interface. In natural environment or under engineering conditions, metal materials are deteriorated and damaged due to chemical or electrochemical reaction with the environment medium in which the metal materials are located, the phenomenon is called corrosion, the corrosion is existed in various industries of national economy, and therefore, the development of corrosion tests of the metal materials is of great significance. The material is severely corroded under the condition of temperature and pressure, particularly under the condition of temperature and pressure, the material is corroded by flowing media and is influenced by high temperature and high pressure, and the corrosion process and the corrosion rate are different from those of a single condition. The method has very important significance in carrying out the corrosion test of the flowing medium on the metal material under the condition of temperature and pressure.
The conventional flow system supercharging device has the following problems:
(1) Because the solution entering the high-temperature pressure container is not preheated and is a normal-temperature solution, the temperature and the pressure state in the pressure container can be greatly disturbed, and the physical and chemical conditions of the system in the experimental process are unstable;
(2) There is a large amount of fluid flowing inside the earth, and the velocity of fluid in the earth's crust is slow, so that the experimental apparatus for simulating high temperature and high pressure inside the earth's crust must realize low velocity flow of fluid under high temperature and high pressure. While the general high-temperature high-pressure continuous flow loading device is difficult to realize the flow with very low flow rate (less than 0.1 mL/min) under the high-temperature (700 ℃) high-pressure (100 MPa) state, so that the loading device is difficult to be used for simulating the fluid flow condition in the crust.
SUMMERY OF THE UTILITY MODEL
the to-be-solved technical problem of the utility model is: provides a high-temperature high-pressure continuous flow loading device to solve the problems in the prior art.
The utility model discloses the technical scheme who takes does: the high-temperature high-pressure continuous flow loading device comprises a high-pressure capillary tube outlet arranged on a kettle plug on the upper side of a kettle body and a high-pressure capillary tube inlet arranged on a kettle plug on the lower side of the kettle body, wherein the high-pressure capillary tube inlet is connected to a high-pressure fluid outlet of a fluid pressurization system, the fluid pressurization system sequentially comprises a fluid normal-pressure container, a pneumatic high-pressure pump, a high-temperature preheating device and a high-temperature pneumatic control valve II, and the high-pressure capillary tube outlet is sequentially connected with a pressure buffer tank and.
Preferably, the air inlet of the pneumatic high-temperature pump is connected with a first electromagnetic directional valve, a pressure regulating valve and a compressed air inlet, a pipeline in front of a second high-temperature pneumatic control valve is connected with a pressure sensor and the first high-temperature pneumatic control valve, the first high-temperature pneumatic control valve is connected to the unloading pool, the first high-temperature pneumatic control valve and the second high-temperature pneumatic control valve are respectively connected with a second electromagnetic directional valve and a third electromagnetic directional valve, and the second electromagnetic directional valve and the third electromagnetic directional valve are both connected to an air source.
Compared with the prior art, the beneficial effects of the utility model are as follows: :
(1) Because the fluid is preheated and insulated before entering the high-temperature pressure container, the fluid entering the pressure container cannot influence the system states such as temperature, pressure and the like, and the physical and chemical conditions in the pressure container are relatively stable.
(2) The utility model discloses a loading device can be under the condition of high temperature (700 ℃) high pressure (100 Mpa), can control the velocity of flow under the condition of minimum flow (being less than 0.1 mL/min).
(3) The utility model discloses a highly compressed pressurization system that flows of high temperature can be used for simulating the flowing condition of fluid for liquid under normal atmospheric temperature and normal pressure in the crust and to the dissolution condition of mineral rock, can be with the measurement under the condition of different temperatures (normal atmospheric temperature-700 ℃), pressure (normal atmospheric pressure-100 MPa) and velocity of flow, the dissolution rate of conductive mineral/rock and the dynamics of alteration reaction in the crust.
(4) The utility model discloses pressure buffer tank and adjustable pressure overflow valve have been connected at high pressure outlet, can make entire system under the condition that flows like this, pressure can keep in a more stable within range, the effect of overflow valve is when exceeding the setting pressure, a part of fluid is emitted automatically, self-closing when pressure is less than the setting pressure, because the interior volume of autoclave is less and the mechanical structure restriction of overflow valve, cause the pressure release too much easily and make system pressure low excessively, and it is undulant at a more stable within range just to add pressure buffer tank.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Detailed Description
The present invention will be further described with reference to the accompanying drawings and specific embodiments.
Example 1: as shown in fig. 1, the high-temperature high-pressure continuous flow loading device comprises a high-pressure capillary outlet 30 arranged on a kettle plug 2 on the upper side of a kettle body 1 and a high-pressure capillary inlet 5 arranged on the kettle plug 2 on the lower side, wherein the high-pressure capillary inlet 5 is connected to a high-pressure fluid outlet of a fluid pressurization system, the fluid pressurization system comprises a fluid normal-pressure container 14, a pneumatic high-pressure pump 15, a high-temperature preheating device 16 and a high-temperature pneumatic control valve II 17 which are sequentially connected through a pipeline, and the high-pressure capillary outlet 30 is sequentially connected with a pressure buffer tank 31 and an adjustable pressure.
Preferably, an air inlet of the pneumatic high-pressure pump 15 is connected with a first electromagnetic directional valve 18, a pressure regulating valve 19 and a compressed air inlet 20, a pipeline in front of a second high-temperature pneumatic control valve 17 is connected with a pressure sensor 21 and a first high-temperature pneumatic control valve 22, the first high-temperature pneumatic control valve 22 is connected to an unloading pool 23, the first high-temperature pneumatic control valve 22 and the second high-temperature pneumatic control valve 17 are respectively connected with a second electromagnetic directional valve 24 and a third electromagnetic directional valve 25, and the second electromagnetic directional valve 24 and the third electromagnetic directional valve 25 are both connected to an air source.
the first electromagnetic directional valve 18, the second electromagnetic directional valve 24, the third electromagnetic directional valve 25, the first high-temperature pneumatic control valve 22, the second high-temperature pneumatic control valve 17 and the pressure sensor 21 are connected to an upper computer (a multi-channel industrial control computer).
A method of operating a high temperature, high pressure, continuous flow loading apparatus, the method comprising the steps of:
(1) Preparing a solution required by an experiment, putting the solution in a normal-pressure liquid container, connecting a flow system pressurization system to a high-pressure capillary interface of a lower kettle plug through a high-pressure capillary, installing a pressure container in a heating furnace, setting a thermocouple, starting cooling circulating water, setting a heating program, and setting an adjustable pressure overflow valve at a high-pressure fluid outlet to the pressure required by the experiment;
(2) And starting heating, and keeping the temperature in the sample cavity in the pressure container constant after the pressure container is kept warm for 30min when the pressure container and the preheater reach the preset temperature. A quantity of fluid is pumped into the pressure vessel by the flow system pressurization system. When the pressure in the system is higher than the set pressure of the adjustable pressure overflow valve, the adjustable pressure overflow valve can automatically discharge a part of fluid, so that the pressure of the system is slightly lower than the pressure required by an experiment, and at the moment, the pressure pump can automatically start to continue pumping the fluid, so that the pressure in the pressure container is constant in a pressure interval.
the above description is only for the specific embodiments of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art can easily think of the changes or substitutions within the technical scope of the present invention, and all should be covered within the protection scope of the present invention, therefore, the protection scope of the present invention should be subject to the protection scope of the claims.
Claims (2)
1. The utility model provides a high temperature high pressure continuous flow loading device, includes high-pressure capillary outlet (30) that cauldron stopper (2) of cauldron body (1) upside set up and high-pressure capillary entry (5) that cauldron stopper (2) of downside set up, its characterized in that: the high-pressure capillary inlet (5) is connected to a high-pressure outlet of a fluid pressurization system, the fluid pressurization system sequentially comprises a fluid normal-pressure container (14), a pneumatic high-pressure pump (15), a high-temperature preheating device (16) and a high-temperature pneumatic control valve II (17), and the high-pressure capillary outlet (30) is sequentially connected with a pressure buffer tank (31) and an adjustable pressure overflow valve (32).
2. a high temperature high pressure continuous flow loading unit as claimed in claim 1, wherein: an air inlet of the pneumatic high-pressure pump (15) is connected with a first electromagnetic directional valve (18), a pressure regulating valve (19) and a compressed air inlet (20), a pipeline in front of a second high-temperature pneumatic control valve (17) is connected with a pressure sensor (21) and the first high-temperature pneumatic control valve (22), the first high-temperature pneumatic control valve (22) is connected with an unloading pool (23), the first high-temperature pneumatic control valve (22) and the second high-temperature pneumatic control valve (17) are respectively connected with a second electromagnetic directional valve (24) and a third electromagnetic directional valve (25), and the second electromagnetic directional valve (24) and the third electromagnetic directional valve (25) are both connected to an air source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920271296.9U CN209784041U (en) | 2019-03-04 | 2019-03-04 | High-temperature high-pressure continuous flow loading device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920271296.9U CN209784041U (en) | 2019-03-04 | 2019-03-04 | High-temperature high-pressure continuous flow loading device |
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| CN209784041U true CN209784041U (en) | 2019-12-13 |
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| CN201920271296.9U Active CN209784041U (en) | 2019-03-04 | 2019-03-04 | High-temperature high-pressure continuous flow loading device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983905A (en) * | 2023-09-27 | 2023-11-03 | 中国农业科学院农业环境与可持续发展研究所 | Self-pressure-regulating biomass hydrothermal carbonization device and method |
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2019
- 2019-03-04 CN CN201920271296.9U patent/CN209784041U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN116983905A (en) * | 2023-09-27 | 2023-11-03 | 中国农业科学院农业环境与可持续发展研究所 | Self-pressure-regulating biomass hydrothermal carbonization device and method |
| CN116983905B (en) * | 2023-09-27 | 2024-01-02 | 中国农业科学院农业环境与可持续发展研究所 | Self-pressure-regulating biomass hydrothermal carbonization device and method |
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