CN212621373U - High-temperature high-pressure gas-containing turbine experimental device - Google Patents
High-temperature high-pressure gas-containing turbine experimental device Download PDFInfo
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- CN212621373U CN212621373U CN202021109442.7U CN202021109442U CN212621373U CN 212621373 U CN212621373 U CN 212621373U CN 202021109442 U CN202021109442 U CN 202021109442U CN 212621373 U CN212621373 U CN 212621373U
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Abstract
The utility model discloses a high-temperature high-pressure gas-containing turbine experimental device, which comprises a dynamometer connected with a hydraulic turbine, a liquid storage tank, a liquid supply tank with an electric heating pipe, a pressure stabilizing tank, a gas storage tank, a hot water heat pump unit with a tube bundle heat exchanger, an expansion pipe made of a magnetic metal, and an electromagnetic mixing device, wherein the pressure stabilizing tank is arranged on a lifting device which can be adjusted up and down; the electromagnetic mixing device consists of a magnetic rotating wheel and a magnetic component matched with the magnetic rotating wheel, and the magnetic component is externally connected with a power supply; the magnetic runner is arranged in the inner cavity of the expansion pipe, and the magnetic assembly is sleeved on the periphery of the expansion pipe. The device can be used for researching the gas-containing hydraulic turbine flow under high temperature and high pressure and the work mechanism of the gas-containing hydraulic turbine.
Description
Technical Field
The utility model belongs to the technical field of fluid machinery engineering and energy conversion, concretely relates to contains gas turbine experimental apparatus, especially relates to a high temperature high pressure contains gas turbine experimental apparatus.
Background
With the increase of the price of crude oil, the improvement of the quality requirement of oil products and the maturity of high-pressure hydrogenation technology, a high-pressure hydrogenation device is gradually used more widely, which requires that a reaction feed pump-hydraulic turbopump group serving as an important device of the high-temperature high-pressure hydrogenation device must keep the operation stability. The devices of the type have high similarity in process, belong to high-temperature and high-pressure devices, and have the excess liquid pressure energy in the process flow which can be recycled, thereby providing a demand source for the application of the hydraulic turbine. In engineering practice, when high-pressure liquid in industries such as synthetic ammonia and petrochemical industry is recovered by a hydraulic turbine, a certain amount of gas is often contained, and the existence of the gas can cause unstable flow in an impeller flow channel and vortex formation, so that the problems of increased hydraulic loss of the hydraulic turbine, low energy recovery efficiency, poor stability and the like are caused, and the problems all put forward higher requirements on the working stability of a centrifugal pump and the like.
At present, the problems of unstable operation process, low efficiency and the like exist in the domestic high-temperature high-pressure gas-containing hydraulic turbine test, and no special system theory is used for guidance. Therefore, the mechanism of the effect of the high pressure gas on the energy recovery of the hydraulic turbine is still unknown. The problem that the gas phase and the liquid phase affect the operation stability of the turbine is solved, and besides the theoretical analysis and numerical simulation method is needed to deeply learn the characteristics and the internal flow mechanism of the hydraulic turbine, experiments are indispensable, such as the operation stability test of the high-temperature high-pressure gas-containing hydraulic turbine and the like.
At present, no national standard and relevant documents are introduced for the test of the operation stability of the high-temperature high-pressure hydraulic turbine, and less relevant information is introduced for the test of the hydraulic turbine containing gas medium.
The difficulty of developing high-temperature high-pressure gas-containing hydraulic turbine experiments in the actual operation process is high: on one hand, because the test is carried out under the condition of extreme pressure, the test is carried out on the pressure stabilizing performance of the device greatly, and the gas-liquid unevenness in the flow channel can be caused by unstable pressure to influence the operation stability. On the other hand, if the heat preservation measures are not properly implemented or high-temperature liquid leaks, personnel injury can be caused.
SUMMERY OF THE UTILITY MODEL
The to-be-solved problem of the utility model is to provide a high temperature high pressure contains gas turbine experimental apparatus, the device can be used for studying contain under the high temperature high pressure that the gas hydraulic turbine flows and contain the gas hydraulic turbine mechanism of doing work.
In order to solve the technical problem, the utility model provides a high temperature high pressure gas-containing turbine experimental device, which comprises a dynamometer connected with a hydraulic turbine, a liquid storage tank, a liquid supply tank with an electric heating pipe, a pressure stabilizing tank, a gas storage tank, a hot water heat pump unit with a tube bundle heat exchanger, an expansion pipe made of a magnetic metal, and an electromagnetic mixing device, wherein the pressure stabilizing tank is arranged on a lifting platform which can be adjusted up and down;
the outlet of the liquid storage tank is connected with the inlet of the liquid supply tank after passing through the first regulating valve and the high-pressure pump in sequence;
a check valve is arranged at the inlet of the pressure stabilizing tank, the outlet of the liquid supply tank is connected with the check valve after passing through a second regulating valve, and the air storage tank is connected with the check valve sequentially through an air compressor, a needle valve and a ventilation nozzle;
the lower outlet of the pressure stabilizing tank is connected with the liquid discharge tank through a water seal gate valve, and the upper outlet of the pressure stabilizing tank is connected with the inlet of the expansion pipe after passing through the third regulating valve and the tube bundle heat exchanger in sequence;
the electromagnetic mixing device consists of a magnetic rotating wheel and a magnetic component matched with the magnetic rotating wheel, and the magnetic component is externally connected with a power supply; the magnetic rotating wheel is arranged in the inner cavity of the expansion pipe, and the magnetic assembly is sleeved on the periphery of the expansion pipe;
the outlet of the expansion pipe is connected with the inlet of the hydraulic turbine after passing through the damping pulsator, the outlet of the hydraulic turbine is connected with the inlet of the gas-liquid separator after passing through the safety valve, the gas outlet of the gas-liquid separator is connected with the gas storage tank, and the liquid outlet of the gas-liquid separator is connected with the liquid storage tank.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's improvement: the high-temperature high-pressure gas-containing turbine experimental device also comprises a high-speed camera and a light source; the camera of the high-speed camera is over against the hydraulic turbine, and the light source is over against the hydraulic turbine.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's further improvement: a first pressure gauge is arranged on the liquid supply tank, and a second pressure gauge is arranged on the pressure stabilizing tank; a first temperature sensor is arranged on a pipeline between the outlet of the liquid supply tank and the second regulating valve, and a high-temperature flow meter is arranged on a pipeline at the outlet of the second regulating valve; a gas flowmeter is arranged on a pipeline between the needle valve and the ventilating nozzle; a second temperature sensor is arranged on a pipeline between the tube bundle heat exchanger and the expansion pipe; and a gas sensor and a third pressure gauge are arranged on a pipeline between the outlet of the expansion pipe and the damping pulsator.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's further improvement: the outer surfaces of the liquid storage tank, the liquid supply tank, the pressure stabilizing tank and the liquid discharge tank are provided with heat insulation layers, and the outer surfaces of the other pipelines are provided with heat insulation layers except for a pipeline for gas circulation (namely, except for a pipeline from the gas storage tank to the ventilation nozzle and a pipeline from the gas-liquid separator to the gas storage tank). The insulating layer can be made of an aluminium silicate fibre material, for example.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's further improvement: the shell of the hydraulic turbine is a square cavity made of transparent materials, and the inlet of the hydraulic turbine and the outlet of the hydraulic turbine are both square pipes.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's further improvement: the outlet of the expansion pipe and the inlet of the hydraulic turbine are both vertically arranged.
As the utility model discloses a high temperature high pressure contains gas turbine experimental apparatus's further improvement: the diameter of the aeration nozzle was 2 mm.
The utility model provides a device suitable for high temperature high pressure contains hydraulic turbine experimental study of gaseous medium for contain the gas hydraulic turbine under the research high temperature high pressure and flow and contain gas hydraulic turbine mechanism of doing work.
The utility model discloses a high temperature high pressure contains gas hydraulic turbine device has following technical advantage:
1. the system pressure is stable and adjustable. The device is designed by combining the pressure stabilizing tank with the lifting platform, so that the pressure of the system is maintained to be stable, and the inlet pressure of the turbine is adjustable.
The expansion pipe is arranged at the outlet section of the pressure stabilizing tank in a matched mode, so that the problem of unstable pressure in the prior art is solved.
2. The magnetic force runner of the electromagnetic mixing device can correspondingly adjust the rotating speed by adjusting the electric parameters of the magnetic force component, and the gas sensor monitors the flowing condition of the pipeline and can flexibly adjust the gas content according to different working conditions.
That is, this experimental apparatus adopts magnetic force component control electromagnetism runner to adjust liquid air content, and electromagnetism mixing arrangement and pipeline contactless avoid revealing the pressure variation that leads to because of conventional gas-liquid mixing arrangement and pipeline kneck to the problem of the emergence high temperature liquid that exists among the prior art reveals has been solved.
The utility model discloses an electromagnetic mixing device compact structure has not only reduced the device volume, carries out the gas-liquid fusion at the in-process that liquid flows moreover, has reduced the time that gas-liquid fuses, has improved the efficiency that gas-liquid fuses.
3. The system has strong heat preservation capability.
In order to maintain the temperature of the liquid, a tubular heat exchanger with a heat pump hot water unit (namely, a hot water heat pump unit with a tube bundle heat exchanger) is arranged at the outlet of the pressure stabilizing tank, so that the hot water heat pump unit can effectively maintain the temperature of the liquid passing through the tube bundle heat exchanger. In addition, the outer surfaces of the pipeline through which liquid and gas-liquid phases pass and the outer surfaces of the liquid storage tank, the liquid supply tank, the pressure stabilizing tank and the liquid discharge tank are provided with heat insulating layers, so that the temperature change of the liquid in the pipeline can be prevented as much as possible, the phenomenon of high liquid heat release in the pipeline is greatly reduced, and the subsequent experiment can be smoothly carried out.
4. The pump shell is transparent and visible.
The pump shell is of a square cavity structure made of organic glass materials, the outer surfaces of the inlet pipe and the outlet pipe are made into squares, the circular pipeline is prevented from being strongly reflected due to light source irradiation, possible internal flow details are observed, the internal form and flow pattern evolution of the impeller are captured through high-speed photography, the gas-liquid two-phase flow of the turbine and the working mechanism of the high-pressure gas-containing hydraulic turbine are researched, and the high-pressure gas-containing hydraulic turbine has the characteristics of stable operation, safety and reliability.
Drawings
The following describes the present invention in further detail with reference to the accompanying drawings.
FIG. 1 is a schematic diagram of a high temperature high pressure gas-containing liquid turbine experimental apparatus;
FIG. 2 is an enlarged schematic view of the lift table 16 and surge tank 18, etc. of FIG. 1;
FIG. 3 is an enlarged schematic view of the electromagnetic mixing device 26 and expansion tube 25 of FIG. 1;
FIG. 4 is a schematic cross-sectional view of FIG. 3 taken along a cross-sectional direction of the conduit;
FIG. 5 is an enlarged schematic view of a visualization device for the hydraulic turbine 32 of FIG. 1;
the numbers in the figures are as follows:
1. a liquid storage tank; 2. a first regulating valve; 3. a high pressure pump; 4. an electric heating tube; 5. a liquid supply tank; 6. a first pressure gauge; 7. a first temperature sensor; 8. a second regulating valve; 9. a high temperature flow meter; 10. a gas storage tank; 11. an air compressor; 12. a needle valve; 13. a gas flow meter; 14. a breather nozzle; 15. a check valve; 16. a lifting platform; 17. a second pressure gauge; 18. a surge tank; 19. a third regulating valve; 20. a water seal gate valve; 21. a liquid discharge tank; 22. a tube bundle heat exchanger; 23. a hot water heat pump unit; 24. a second temperature sensor; 25. an expansion tube; 26. an electromagnetic mixing device; 27. a gas sensor; 28. a third pressure gauge; 29. a high-speed camera; 30. damping the pulsator; 31. a light source; 32. a hydraulic turbine; 33. a dynamometer; 34. a safety valve; 35. a gas-liquid separator.
Detailed Description
The invention will be further described with reference to specific examples, but the scope of protection of the invention is not limited thereto:
example 1, a high temperature high pressure gas-containing hydraulic turbine experimental apparatus, as shown in fig. 1 to 5; comprises a liquid storage tank 1, a gas storage tank 10, a pressure stabilizing tank 18, a hot water heat pump unit 23 with a tube bundle heat exchanger 22, a hydraulic turbine 32 and a dynamometer 33.
An outlet of the liquid storage tank 1 is connected with an inlet of a liquid supply tank 5 through a first regulating valve 2 and a high-pressure pump 3 in sequence; namely, the liquid in the liquid storage tank 1 is pumped into the liquid supply tank 5 by the high-pressure pump 3; a first regulating valve 2 is arranged on a pipeline between the outlet of the liquid storage tank 1 and the high-pressure pump 3.
An electric heating pipe 4 and a first pressure gauge 6 are respectively arranged on the tank body of the liquid supply tank 5, and the electric heating pipe 4 is used for heating the liquid in the liquid supply tank 5; thereby enabling the feed tank 5 to supply the high-temperature liquid. A check valve 15 is arranged at the inlet of the pressure stabilizing tank 18; the outlet of the liquid supply tank 5 is connected with the inlet of the pressure stabilizing tank 18 through the second regulating valve 8 and the check valve 15, the pipeline between the outlet of the liquid supply tank 5 and the second regulating valve 8 is provided with a first temperature sensor 7, and the pipeline at the outlet of the second regulating valve 8 is provided with a high temperature flowmeter 9.
The gas of the experimental device is provided by a gas storage tank 10, and the gas storage tank 10 is connected with an inlet of a pressure stabilizing tank 18 after passing through an air compressor 11, a needle valve 12, a ventilation nozzle 14 and a check valve 15 in sequence; the needle valve 12 can accurately control the gas flow; the diameter of the aeration nozzle 14 is 2 mm; a gas flow meter 13 is provided on a connection line between the needle valve 12 and the air vent nozzle 14.
The gas and the liquid are mixed and enter the pressure stabilizing tank 18 after passing through the check valve 15; the surge tank 18 stably outputs gas and liquid in the tank to maintain the system pressure; the surge tank 18 is disposed on the vertically adjustable elevating platform 16 so that the inlet pressure of the hydraulic turbine 32 can be effectively adjusted.
And a second pressure gauge 17 is arranged on the surge tank 18, and the second pressure gauge 17 is used for displaying the pressure in the surge tank 18.
The outlet at the lower side of the pressure stabilizing tank 18 is connected with a liquid discharge tank 21 through a water seal gate valve 20.
An outlet on the upper side of the pressure stabilizing tank 18 is connected with an inlet of an expansion pipe 25 after passing through a third regulating valve 19 and a tube bundle heat exchanger 22 in sequence. A second temperature sensor 24 is provided in the connection line between the tube bundle heat exchanger 22 and the expansion tubes 25.
The expansion pipe 25 is made of a magnetic metal, and the expansion pipe 25 is used for automatically adjusting the pressure of the pipeline and maintaining the stable pressure.
The hot water heat pump unit 23 performs a heat preservation function on the medium flowing through the tube bundle heat exchanger 22, thereby ensuring that the temperature of the medium discharged from the tube bundle heat exchanger 22 is substantially equal to the temperature in the liquid supply tank 5.
The electromagnetic mixing device 26 is composed of a magnetic rotating wheel 262 and a magnetic assembly 261 matched with the magnetic rotating wheel 262; the magnetic assembly 261 is externally connected with a power supply; the magnetic force rotating wheel 262 is arranged in the inner cavity of the expansion tube 25, the magnetic force assembly 261 is sleeved on the periphery of the expansion tube 25, and the magnetic force rotating wheel 262 corresponds to the magnetic force assembly 261 along the section of the expansion tube 25. When the magnetic assembly 261 is not electrified, the magnetic runner 262 is adsorbed on the inner wall of the expansion pipe 25; when the magnetic assembly 261 is energized, the magnetic wheel 262 rotates around the axis of the expansion tube 25 inside the expansion tube 25 under the action of the magnetic force. The medium flowing through the expansion pipe 25 is uniformly mixed (the size of bubbles is controlled to be uniform) by means of the magnetic runner 262, so that the gas phase and the liquid phase entering the hydraulic turbine 32 are uniformly mixed; the electric parameters of the magnetic assembly 261 are changed, so that the motion indexes such as the rotating speed of the magnetic rotating wheel 262 and the like can be correspondingly changed, and the gas content in the medium can be flexibly adjusted; thereby meeting the test requirements of different working conditions.
The outlet of the expansion pipe 25 is connected with the inlet of a hydraulic turbine 32 through a pipeline, a gas sensor 27, a third pressure gauge 28 and a damping pulsator 30 are sequentially arranged on the pipeline, and the gas sensor 27 monitors the gas content in the pipeline in real time; the third pressure gauge 28 is used for measuring the pressure at the inlet of the hydraulic turbine 32, the pressure at the inlet of the hydraulic turbine 32 can be controlled to be constant by adjusting the position of the lifting platform 16 at different working points, and the damping pulsator 30 is used for absorbing or supplementing the pressure in the discharged liquid to ensure the stability of the liquid flow rate.
The outlet of the expansion pipe 25 and the inlet of the hydraulic turbine 32 are both vertically arranged, that is, the energy recovery section of the hydraulic turbine 32 is vertical, and the liquid in the expansion pipe 25 vertically enters the hydraulic turbine 32.
The camera of the high-speed camera 29 is opposite to the hydraulic turbine 32, and the light source 31 is opposite to the hydraulic turbine 32.
The pump shell of the hydraulic turbine 32 adopts a square cavity type structure made of organic glass materials, the outer surfaces of the inlet pipe and the outlet pipe are made into squares so as to observe the internal flowing details, the high-speed camera 29 is matched with the light source 31 to shoot, and in other words, the internal form and the flow pattern evolution of the impeller in the hydraulic turbine 32 are captured through the high-speed camera 29. The hydraulic turbine 32 is connected with a dynamometer 33; the hydraulic turbine 32 converts the pressure energy of the high-pressure gas-containing medium into mechanical energy, and outputs the mechanical energy in the form of shaft power to drive a dynamometer 33.
The outlet of the hydraulic turbine 32 is connected with the inlet of the gas-liquid separator 35 through a safety valve 34, the gas outlet of the gas-liquid separator 35 is connected with the gas storage tank 10, and the liquid outlet of the gas-liquid separator 35 is connected with the liquid storage tank 1. The relief valve 34 is used to open the relief valve 34 when the pressure at the outlet of the hydraulic turbine 32 is too high and exceeds a relief value, so as to discharge the excess gas-containing liquid in the hydraulic turbine 32. The gas-liquid separator 35 separates gas and liquid of the medium in the outlet pipeline of the hydraulic turbine 32, the gas enters the gas storage tank 10, and the liquid enters the liquid storage tank 1.
In the utility model, the water-saving device is provided with a water-saving valve,
the liquid storage tank 1, the liquid supply tank 5, the pressure stabilizing tank 18, the liquid discharge tank 21 and the heat insulation layer at the position where the liquid and gas-liquid two-phase medium passes through the pipeline are all wrapped by the aluminum silicate fiber material, so that heat insulation is realized; that is, in the entire piping system, the piping for gas flow is not provided with a heat insulating layer except for the piping from the gas tank 10 to the air vent nozzle 14 and the piping from the gas-liquid separator 35 to the gas tank 10, and the other piping is provided with a heat insulating layer.
Therefore, the whole pipeline system greatly reduces the phenomenon of high liquid heat leakage in the pipeline under the action of the heat exchanger and the aluminum silicate fiber material, thereby ensuring that the later experiment can be smoothly carried out.
The utility model discloses a high temperature high pressure contains gas turbine experimental apparatus, concrete working process as follows:
the liquid stored in the liquid storage tank 1 is water; the gas stored in the gas tank 10 is compressed air.
1. Before starting, the piping is inspected to determine the presence of seizing of the elements of the hydraulic turbine 32 and the test equipment.
When abnormal sound of the hydraulic turbine 32 is found, the hydraulic turbine 32 element is judged to be blocked, and when water leakage of the tank body (the liquid storage tank 1, the liquid supply tank 5, the pressure stabilizing tank 18 and the liquid discharge tank 21) or the pipeline is found, the equipment is judged to be abnormal and needs to be overhauled.
Otherwise, the following steps may be performed.
2. The main power supply is started, the temperature of the electric heating pipe 4 is set, the high-pressure pump 3 is started, the pipeline water is circulated, and the hydraulic turbine 32 operates.
The method comprises the following specific steps:
2.1), liquid in the liquid storage pot 1 is gone into under the effect of high-pressure pump 3 behind the first governing valve 2 and is supplied the fluid reservoir 5 into, and first governing valve 2 is used for adjusting the flow that liquid got into the fluid reservoir 5, and the device during operation, first governing valve 2 is in the open mode.
After being heated in the liquid supply tank 5, the liquid is transmitted into the pressure stabilizing tank 18, and the high-temperature flow meter 9 is used for detecting the flow of the high-temperature liquid; the first temperature sensor 7 is used for detecting the temperature of the high-temperature liquid, the second regulating valve 8 is used for regulating the outlet flow of the liquid supply tank 5 (namely regulating the inlet flow of the surge tank 18), and when the device works, the second regulating valve 8 is in an open state.
2.2) and compressed air is stored in the air storage tank 10, and is injected into the pressure stabilizing tank 18 through the vent nozzle 14 with the diameter of 2mm under the action of the air compressor 11, namely, the high-temperature liquid in the liquid supply tank 5 and the compressed air in the air storage tank 10 are firstly combined and then enter the pressure stabilizing tank 18 after passing through the check valve 15. The check valve 15 is interlocked with a third regulating valve 19 for stabilizing the pressure of the gas-liquid mixture in the surge tank 18. When the device is in operation, the third regulating valve 19 is in an open state.
The flow rate of the gas is precisely controlled by a needle valve 12, and a gas flow meter 13 is used to monitor the gas flow rate.
2.3), the gas-liquid mixture discharged from the surge tank 18 enters a tube bundle heat exchanger 22 after passing through a third regulating valve 19;
when the pressure in the surge tank 18 exceeds the set pressure of the surge gate valve 20, the surge gate valve 20 is opened, and the gas-liquid mixture in the surge tank 18 is discharged into the drain tank 21, thereby achieving the purpose of pressure relief.
2.4), the gas-liquid mixture discharged from the tube bundle heat exchanger 22 passes through a second temperature sensor 24 and then enters an expansion pipe 25; the second temperature sensor 24 is operative to determine whether the temperature of the liquid-gas mixture exiting the tube bundle heat exchanger 22 meets the design-for-test temperature conditions.
When the magnetic assembly 261 is powered on, the magnetic assembly 261 drives the magnetic runner 262 to rotate around the axis of the expansion pipe 25, so that the purpose of gas-liquid mixing is achieved. The magnetic rotating wheel 262 has the advantages that the rotating speed of the magnetic rotating wheel 262 can be adjusted by changing the electrical parameters of the magnetic assembly 261, and the bubbles generated by the rotating speed of the magnetic rotating wheel 262 are smaller, so that the gas and the liquid can be mixed more conveniently, and the gas content can be adjusted flexibly; thereby meeting the test requirements of different working conditions.
Compared with other stirring devices. The utility model discloses an electromagnetic mixing device 26 structure is compacter, when having reduced the device volume, carries out the gas-liquid at the in-process that liquid flows and fuses, has reduced the time that gas-liquid fuses, has improved the efficiency that gas-liquid fuses. And a non-contact gas-liquid mixing method is adopted, so that pipeline pressure change caused by leakage is avoided.
2.5) the gas-liquid mixture discharged from the outlet of the expansion pipe 25 passes through a gas sensor 27, a third pressure gauge 28 and a damping pulsator 30 in sequence and then enters a hydraulic turbine 32;
a gas sensor 27 is used to detect the gas content in the medium in the pipe and a third pressure gauge 28 is used to detect the pressure of the medium in the pipe.
In order to ensure the stable flow of the conveyed liquid, a pulsation damper 30 is arranged in front of an inlet of a hydraulic turbine 32, and the pulsation damper 30 absorbs or supplements the pressure in the discharged liquid to ensure the stability of the flow rate of the liquid;
2.6) when the pressure at the discharge port of the hydraulic turbine 32 is too high and exceeds a safety value, the safety valve 34 is started to discharge the redundant high-temperature gas-containing liquid in the hydraulic turbine 32, the discharged high-temperature gas-containing liquid is separated in the gas-liquid separator 35, the separated liquid enters the liquid storage tank 1, and the gas enters the gas storage tank 10.
The high-pressure gas-containing medium passes through the hydraulic turbine 32, converts the pressure energy of the medium into mechanical energy, and outputs the mechanical energy in the form of shaft power to drive a dynamometer.
Description of the drawings: in the initial operation, the step 2.2) is not operated, i.e. the air compressor 11 is not operated; circulating only the pipeline water to preheat the pipeline, so that the hydraulic turbine 32 operates; and when the gas-liquid separator 35 is operated, the air compressor 11 is opened again, and the step 2.2) is carried out.
When the high-pressure gas work mechanism is researched, the flow is kept unchanged, the gas sensor 27 is observed, and the electric parameters of the magnetic assembly 261 are adjusted to change the gas content of the liquid, so that the test requirements of different working conditions are met.
After the experiment is started, the internal morphology and flow pattern evolution of the impeller of the hydraulic turbine 32 are photographed by the high-speed camera 29. After the experiment is finished, the high-pressure pump 3 and the air compressor 11 are closed, and at the same time, the first regulating valve 2, the needle valve 12 and the hot water heat pump unit 23 with the tubular heat exchanger 22 are closed.
3. The height of the lifting platform 16 can be adjusted, so that the inlet pressure of the hydraulic turbine 32 can be conveniently controlled, and the outlet of the pressure stabilizing tank 18 is connected with the expansion pipe 25 so as to achieve the purpose of stabilizing the system pressure.
Finally, it is also noted that the above-mentioned list is only a few specific embodiments of the present invention. Obviously, the present invention is not limited to the above embodiments, and many modifications are possible. All modifications which can be derived or suggested by a person skilled in the art from the disclosure of the invention should be considered as within the scope of the invention.
Claims (7)
1. A high-temperature high-pressure gas-containing turbine experimental device comprises a dynamometer (33) connected with a hydraulic turbine (32), and is characterized in that: the device is characterized by also comprising a liquid storage tank (1), a liquid supply tank (5) with an electric heating pipe (4), a pressure stabilizing tank (18), a gas storage tank (10), a hot water heat pump unit (23) with a tube bundle heat exchanger (22), an expansion pipe (25) made of a magnetic-philic metal and an electromagnetic mixing device (26), wherein the pressure stabilizing tank (18) is arranged on a lifting platform (16) which can be adjusted up and down;
an outlet of the liquid storage tank (1) is connected with an inlet of the liquid supply tank (5) after passing through the first regulating valve (2) and the high-pressure pump (3) in sequence;
a check valve (15) is arranged at the inlet of the pressure stabilizing tank (18), the outlet of the liquid supply tank (5) is connected with the check valve (15) through a second regulating valve (8), and the air storage tank (10) is connected with the check valve (15) through an air compressor (11), a needle valve (12) and a ventilation nozzle (14) in sequence;
the lower outlet of the pressure stabilizing tank (18) is connected with the liquid discharge tank (21) through a water seal gate valve (20), and the upper outlet of the pressure stabilizing tank (18) is connected with the inlet of the expansion pipe (25) after passing through a third regulating valve (19) and a tube bundle heat exchanger (22) in sequence;
the electromagnetic mixing device (26) consists of a magnetic rotating wheel (262) and a magnetic assembly (261) matched with the magnetic rotating wheel (262), and the magnetic assembly (261) is externally connected with a power supply; the magnetic rotating wheel (262) is arranged in the inner cavity of the expansion pipe (25), and the magnetic assembly (261) is sleeved on the periphery of the expansion pipe (25);
an outlet of the expansion pipe (25) is connected with an inlet of a hydraulic turbine (32) after passing through a damping pulsator (30), an outlet of the hydraulic turbine (32) is connected with an inlet of a gas-liquid separator (35) after passing through a safety valve (34), a gas outlet of the gas-liquid separator (35) is connected with the gas storage tank (10), and a liquid outlet of the gas-liquid separator (35) is connected with the liquid storage tank (1).
2. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 1, wherein: the high-temperature high-pressure gas-containing turbine experimental device also comprises a high-speed camera (29) and a light source (31); the camera of the high-speed camera (29) is over against the hydraulic turbine (32), and the light source (31) is over against the hydraulic turbine (32).
3. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 1 or 2, which is characterized in that:
a first pressure gauge (6) is arranged on the liquid supply tank (5), and a second pressure gauge (17) is arranged on the pressure stabilizing tank (18);
a first temperature sensor (7) is arranged on a pipeline between the outlet of the liquid supply tank (5) and the second regulating valve (8), and a high-temperature flow meter (9) is arranged on a pipeline at the outlet of the second regulating valve (8);
a gas flowmeter (13) is arranged on a pipeline between the needle valve (12) and the ventilating nozzle (14);
a second temperature sensor (24) is arranged on a pipeline between the tube bundle heat exchanger (22) and the expansion pipe (25);
a gas sensor (27) and a third pressure gauge (28) are arranged on a pipeline between the outlet of the expansion pipe (25) and the damping pulsator (30).
4. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 3, wherein: the outer surfaces of the liquid storage tank (1), the liquid supply tank (5) and the pressure stabilizing tank (18) are provided with heat insulating layers, and the outer surfaces of the rest pipelines are provided with heat insulating layers except for the pipeline from the air storage tank (10) to the air vent nozzle (14) and the pipeline from the gas-liquid separator (35) to the air storage tank (10).
5. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 4, wherein:
the shell of the hydraulic turbine (32) is a square cavity made of transparent materials, and the inlet of the hydraulic turbine (32) and the outlet of the hydraulic turbine (32) are both square pipes.
6. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 5, wherein: the outlet of the expansion pipe (25) and the inlet of the hydraulic turbine (32) are vertically arranged.
7. The high-temperature high-pressure gas-containing turbine experimental device as claimed in claim 6, wherein: the diameter of the aeration nozzle (14) is 2 mm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021109442.7U CN212621373U (en) | 2020-06-16 | 2020-06-16 | High-temperature high-pressure gas-containing turbine experimental device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021109442.7U CN212621373U (en) | 2020-06-16 | 2020-06-16 | High-temperature high-pressure gas-containing turbine experimental device |
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| Publication Number | Publication Date |
|---|---|
| CN212621373U true CN212621373U (en) | 2021-02-26 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021109442.7U Active CN212621373U (en) | 2020-06-16 | 2020-06-16 | High-temperature high-pressure gas-containing turbine experimental device |
Country Status (1)
| Country | Link |
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| CN (1) | CN212621373U (en) |
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2020
- 2020-06-16 CN CN202021109442.7U patent/CN212621373U/en active Active
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