CN110873286B - Multiple air source supply device for high-pressure large-flow gas experiment - Google Patents
Multiple air source supply device for high-pressure large-flow gas experiment Download PDFInfo
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- CN110873286B CN110873286B CN201911151348.XA CN201911151348A CN110873286B CN 110873286 B CN110873286 B CN 110873286B CN 201911151348 A CN201911151348 A CN 201911151348A CN 110873286 B CN110873286 B CN 110873286B
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D1/00—Pipe-line systems
- F17D1/02—Pipe-line systems for gases or vapours
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/04—Arrangement or mounting of valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C13/00—Details of vessels or of the filling or discharging of vessels
- F17C13/08—Mounting arrangements for vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/01—Arrangements for supervising or controlling working operations for controlling, signalling, or supervising the conveyance of a product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D3/00—Arrangements for supervising or controlling working operations
- F17D3/18—Arrangements for supervising or controlling working operations for measuring the quantity of conveyed product
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/005—Protection or supervision of installations of gas pipelines, e.g. alarm
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01D—MEASURING NOT SPECIALLY ADAPTED FOR A SPECIFIC VARIABLE; ARRANGEMENTS FOR MEASURING TWO OR MORE VARIABLES NOT COVERED IN A SINGLE OTHER SUBCLASS; TARIFF METERING APPARATUS; MEASURING OR TESTING NOT OTHERWISE PROVIDED FOR
- G01D11/00—Component parts of measuring arrangements not specially adapted for a specific variable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0123—Mounting arrangements characterised by number of vessels
- F17C2205/013—Two or more vessels
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/01—Mounting arrangements
- F17C2205/0153—Details of mounting arrangements
- F17C2205/0169—Details of mounting arrangements stackable
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0323—Valves
- F17C2205/0335—Check-valves or non-return valves
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2205/00—Vessel construction, in particular mounting arrangements, attachments or identifications means
- F17C2205/03—Fluid connections, filters, valves, closure means or other attachments
- F17C2205/0302—Fittings, valves, filters, or components in connection with the gas storage device
- F17C2205/0352—Pipes
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0302—Heat exchange with the fluid by heating
- F17C2227/0304—Heat exchange with the fluid by heating using an electric heater
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17C—VESSELS FOR CONTAINING OR STORING COMPRESSED, LIQUEFIED OR SOLIDIFIED GASES; FIXED-CAPACITY GAS-HOLDERS; FILLING VESSELS WITH, OR DISCHARGING FROM VESSELS, COMPRESSED, LIQUEFIED, OR SOLIDIFIED GASES
- F17C2227/00—Transfer of fluids, i.e. method or means for transferring the fluid; Heat exchange with the fluid
- F17C2227/03—Heat exchange with the fluid
- F17C2227/0367—Localisation of heat exchange
- F17C2227/0388—Localisation of heat exchange separate
- F17C2227/039—Localisation of heat exchange separate on the pipes
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- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- General Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Filling Or Discharging Of Gas Storage Vessels (AREA)
- Measuring Volume Flow (AREA)
Abstract
A multi-gas-source supply device for high-pressure large-flow gas experiments comprises a gas conveying loop, gas state control equipment and a gas parameter acquisition system, wherein the gas conveying loop comprises a gas cylinder, and an outlet of the gas cylinder is connected with a gas inlet of a testing section through a pipeline; the gas state control equipment comprises a high-pressure stop valve, an electric pressure reducing valve and an electric heater which are arranged on a connecting pipeline between the gas cylinder and the testing section, and an electric regulating valve arranged at an outlet of the testing section; the gas parameter acquisition system comprises a first pressure sensor for acquiring outlet pressure of a gas cylinder, a second pressure sensor for acquiring gas inlet pressure of a testing section, a first temperature sensor for acquiring gas temperature before heating of an electric heater, a second temperature sensor for acquiring gas temperature after heating of the electric heater, a flowmeter for acquiring gas inlet flow of the testing section, and a data acquisition and display device. The invention can provide a test environment with high back pressure, large flow and various gases.
Description
Technical Field
The invention belongs to the technical field of flow and heat transfer experiment tests, and particularly relates to a multi-gas-source supply device for a high-pressure high-flow gas experiment.
Background
When the laboratory develops experimental tests and researches such as pneumatics, heat transfer, flow resistance, various air sources (such as nitrogen, air, carbon dioxide and the like) are inevitably needed, and the difference of the gas types, the pressure and the flow requirements of the air sources is larger according to the experimental test working conditions and the difference of test objects. The current common gas source mainly has the following defects that the large flow can be realized but the high pressure cannot be realized by the fan gas supply, and the gas type cannot be changed; the compressor can supply gas to realize high pressure, but the equipment cost is high when large flow is realized, and the gas type cannot be changed; the compressor and the gas storage tank can realize high pressure and large flow by comprehensive gas supply, but the high-pressure gas storage tank has high cost, needs a certain time for gas storage before the experiment, has poor instantaneity and can not change the gas types.
Disclosure of Invention
In order to overcome the defects of the gas source supply technology in the existing experimental tests and the like, the invention aims to provide a multi-gas source supply device for high-pressure large-flow gas experiments, which has the advantages of large gas flow, high pressure and low cost.
In order to achieve the purpose, the invention adopts the technical scheme that:
the utility model provides a large-traffic gas experiment of high pressure is with multiple air supply feeding device is connected with different test sections, for the experiment test provides required large-traffic, high-pressure stable air supply, including gas delivery return circuit, gas state control equipment and gaseous parameter acquisition system, its characterized in that:
the gas conveying loop comprises a gas bottle 1, and an outlet of the gas bottle 1 is connected with a gas inlet of the testing section 6 through a pipeline;
the gas state control equipment comprises a high-pressure stop valve 2, an electric reducing valve 3 and an electric heater 4 which are arranged on a connecting pipeline between the gas cylinder 1 and the testing section 6, and an electric regulating valve 7 arranged at the outlet of the testing section 6;
the gas parameter acquisition system comprises a first pressure sensor 11 for acquiring the outlet pressure of the gas bottle 1, a second pressure sensor 14 for acquiring the gas inlet pressure of the testing section 6, a first temperature sensor 12 for acquiring the gas temperature before the electric heater 4 is heated, a second temperature sensor 13 for acquiring the gas temperature after the electric heater 4 is heated, a flowmeter 5 for acquiring the gas inlet flow of the testing section 6, and a data acquisition and display device 18 connected with the first pressure sensor 11, the second pressure sensor 14, the second temperature sensor 13 and the output end of the flowmeter 5.
The gas cylinders 1 are provided with a plurality of gas cylinders in national standard, steel gas cylinder fixing frames in national standard are horizontally placed layer by layer, and gas transmission pipes in national standard are adopted. The exhaust valves of the gas bottles 1 are respectively connected with corresponding threaded connectors on gas transmission branch pipes 24 horizontally arranged on the bottle frame, so that high-pressure gas in the gas bottles 1 enters the gas transmission branch pipes 24 through buffer pipes 21, and the high-pressure gas is transmitted into a gas mixing tank 23 at one end of the bottle frame through the gas transmission branch pipes 24, so that the gas pressure in the pipeline is balanced.
A check valve is arranged between the buffer tube and the gas transmission branch tube to prevent gas from flowing back into the gas cylinder 1 to cause safety accidents.
The electric pressure reducing valve 3 is used for adjusting the gas pressure at the inlet of the testing section 6 and is controlled by an electric pressure reducing valve controller 15, the electric pressure reducing valve controller 15 collects the return value of the second pressure sensor 14, and calculates the difference value between the return value of the second pressure sensor 14 and the user set pressure value by using PID to drive the electric pressure reducing valve 3 to act, so that the gas pressure at the inlet of the testing section 6 reaches the user set value.
The electric heater 4 is used for adjusting the gas temperature at the inlet of the testing section 6 and is controlled by an electric heater controller and a power supply box 10, the electric heater controller and the power supply box 10 acquire the return values of the first temperature sensor 12 and the second temperature sensor 13, the difference between the return value of the second temperature sensor 13 and a user set value is calculated by using a silicon controlled rectifier power regulator, and the output power of the electric heater 4 is not adjusted in a stepless mode, so that the gas temperature at the inlet of the testing section 6 reaches the user set value.
The electric regulating valve 7 is used for regulating the flow of gas flowing through the testing section 6 and is controlled by the electric regulating valve controller 9, the electric regulating valve controller 9 utilizes PID (proportion integration differentiation) to calculate the difference value between the return value of the flowmeter 5 and a user set value by collecting the return value of the flowmeter 5 so as to drive the electric regulating valve 7 to open and close, so that the flow of gas flowing through the testing section 6 reaches the user set value, and the gas is discharged to the atmospheric environment through the gas outlet 16 after flowing through the electric regulating valve 7.
And a safety valve 8 is arranged behind the electric pressure reducing valve 3 and used for limiting the highest pressure in a pipeline behind the electric pressure reducing valve 3, when the highest pressure in the pipeline reaches the set threshold value of the safety valve 8, the safety valve 8 is automatically opened, and the air is exhausted through a pressure relief opening 17, so that the experimental safety is ensured.
The data acquisition and display device 18 records and displays the gas parameters at the inlet of the test section in real time through the second pressure sensor 14 and the second temperature sensor 13, and simultaneously records and displays the return values of various sensors arranged in the test section 6 in real time.
The data acquisition and display device 18 monitors the gas pressure output by the gas cylinder 1 in real time through the first pressure sensor 11, and when the pressure value is smaller than a threshold value, an alarm is given to prompt the replacement of the gas cylinder.
All pipelines, flanges and connecting pieces in the device are made of 304 stainless steel, and the temperature sensors are made of platinum resistance temperature sensors.
Compared with the prior art, the invention has the beneficial effects that:
(1) the invention can provide high-pressure and large-flow gas sources for various flow and heat exchange test experiments, has various gas types and greatly reduced cost, and can flexibly meet various test experiments.
(2) The gas cylinder and cylinder frame device has compact structural design, simple and reliable gas cylinder installation and replacement and high safety. The gas cylinder and the gas transmission branch pipe of the cylinder frame are connected by the buffer tank, and the check valve is arranged between the gas cylinder and the gas transmission branch pipe, so that high-pressure gas discharged by the gas cylinder is prevented from impacting a pipeline, gas is prevented from flowing back into the gas cylinder, and the operation safety of the device is ensured.
(3) The electric pressure reducing valve controller drives the electric pressure reducing valve to realize real-time, flexible and reliable control of the gas pressure at the inlet of the test section.
(4) The heating pipes in the electric heater are arranged by adopting U-shaped pipe bundles, the structure is compact, and the heating power density is high. The arched baffle plates are arranged on the tube bundle to enhance the disturbance of the heated gas and enhance the heat exchange.
(5) The electric heater controller and the power supply box adopt the silicon controlled rectifier power regulator to control the input power of the electric heater, and the gas temperature at the inlet of the test section can be controlled in real time, steplessly, accurately and reliably.
(6) The flowmeter adopts a pore plate flowmeter, has strong anti-interference capability and is reliable and durable. The electric regulating valve controller drives the electric regulating valve to act according to the return value of the flowmeter, and the gas flow passing through the testing section is accurately and reliably controlled in real time.
(7) The data acquisition and display system consists of a Guichli-series universal meter, an industrial personal computer, a direct-current power supply and various high-precision sensors (a pressure sensor, a temperature sensor, a flow meter and a power meter), and a data acquisition and display interface is compiled by Labview software, so that the real-time acquisition, monitoring and storage of experimental data can be realized.
Drawings
FIG. 1 is a schematic diagram of the system architecture of the present invention.
Fig. 2 is a schematic view of the structure of the gas cylinder and the cylinder frame of the present invention.
Fig. 3 is a schematic view of the electric heater structure of the present invention.
FIG. 4 is a schematic diagram of the data acquisition and display system of the present invention.
Detailed Description
The embodiments of the present invention will be described in detail below with reference to the drawings and examples.
As shown in fig. 1, the multiple gas source supply device for high-pressure large-flow gas experiments can provide a high-pressure large-flow stable gas source for a test section, and comprises a gas delivery loop, a gas state control device and a gas parameter acquisition system.
The gas conveying loop comprises a gas bottle 1, and an outlet of the gas bottle 1 is connected with a gas inlet of the testing section 6 through a pipeline;
the gas state control equipment comprises a high-pressure stop valve 2, an electric reducing valve 3 and an electric heater 4 which are arranged on a connecting pipeline between the gas cylinder 1 and the testing section 6, and an electric regulating valve 7 arranged at the outlet of the testing section 6;
the gas parameter acquisition system comprises a first pressure sensor 11 for acquiring the outlet pressure of the gas bottle 1, a second pressure sensor 14 for acquiring the gas inlet pressure of the testing section 6, a first temperature sensor 12 for acquiring the gas temperature before the electric heater 4 is heated, a second temperature sensor 13 for acquiring the gas temperature after the electric heater 4 is heated, a flowmeter 5 for acquiring the gas inlet flow of the testing section 6, and a data acquisition and display device 18 connected with the first pressure sensor 11, the second pressure sensor 14, the second temperature sensor 13 and the output end of the flowmeter 5.
As shown in fig. 1 and 2, in the gas delivery circuit, a certain number of gas cylinders 1 of national standard specification are horizontally placed into a steel cylinder frame 19 layer by layer, each gas cylinder exhaust valve is respectively connected with a corresponding threaded interface on a gas delivery branch pipe 24 horizontally placed on the cylinder frame 19, so that high-pressure gas in the gas cylinders 1 passes through a buffer pipe 21, flows through a one-way valve 20 and enters the gas delivery branch pipe 24, and the gas delivery branch pipes 24 deliver the high-pressure gas into a gas mixing tank 23 at one end of the cylinder frame, so that the gas pressure in the pipelines is balanced. A drain valve 26 and an air outlet 25 butted with the high-pressure stop valve are arranged at the bottom of the gas mixing tank.
As shown in fig. 1, the high-pressure gas supplied from the gas cylinder 1 flows through the high-pressure stop valve 2, the electric pressure reducing valve 3, the electric heater 4, the flow meter 5, the test section 6, and the electric control valve 7 in this order, and is finally discharged from the gas outlet 16.
As shown in fig. 1, the electric pressure reducing valve controller 15 calculates a difference between the return value of the pressure sensor 14 and a user set pressure value to control the operation of the electric pressure reducing valve 3, thereby adjusting the gas pressure at the inlet of the test section 6.
As shown in fig. 1, the electric heater controller and the power supply box 10 respectively calculate the output power of the electric heater 4 and control the operation thereof by calculating the difference between the return values of the first temperature sensor 12 and the second temperature sensor 13 and the difference between the return value of the first temperature sensor 12 and the temperature value set by the user.
As shown in fig. 3, the electric heater 4 includes a wiring chamber 27, an air outlet 28, a housing 29, a heating pipe 30, an arcuate baffle 34, an air inlet 31, upper and lower housing connecting pipes 32, and a base 33. The electric heater 4 is integrally arranged in an upper layer and a lower layer, and the heating pipe 30 is arranged in a U-shaped pipe bundle, so that the structure is compact, and the heating power density is high. An arched baffle 34 is arranged on the tube bundle to enhance the disturbance of the heated gas and enhance the heat exchange.
As shown in fig. 1, the electric control valve 9 controls the electric control valve 7 to open and close by calculating the difference between the return value of the flowmeter 5 and the user set value, and adjusts the flow rate of the gas flowing through the test section 6.
As shown in fig. 1 and 4, the data acquisition and display device 18 includes an industrial personal computer and display 35, and a givens series multimeter 36. The physical values collected by various sensors such as a temperature sensor 37, a pressure/differential pressure sensor 38, a flowmeter 39 and the like are converted into voltage/current signals, then the voltage/current signals are transmitted to a Gishili series universal meter 36, and finally the voltage/current signals are transmitted to an industrial personal computer and a display 35, and real-time monitoring, processing and storage are carried out.
The working process of the invention is as follows:
experimental test preparation phase: connecting the test section 6 with the device, including corresponding pipeline connection and data acquisition and display device 18; and detecting whether the air tightness of the pipeline connection and the data acquisition signal are normal.
Initializing the whole device: firstly, completely closing a high-pressure stop valve, an electric pressure reducing valve and an electric regulating valve; secondly, opening an exhaust valve in the gas cylinder 1 and waiting for the stable gas flow; finally, the high-pressure cutoff valve 2 is slowly opened.
The test is started: firstly, setting test working condition parameters (inlet pressure, temperature and flow of a test section 6) in an electric pressure reducing valve controller 15, an electric heater controller, a power supply box 4 and an electric regulating valve controller 9 respectively; and secondly, starting an experimental test, enabling high-pressure gas output by the gas bottle 1 to flow into the electric pressure reducing valve 3, and controlling the electric pressure reducing valve 3 by the electric pressure reducing valve controller 15 to adjust the gas pressure to a user set value. The decompressed gas enters the electric heater 4, and the electric heater controller and the power supply box 10 control the heating power of the electric heater 4 to heat the gas to the temperature set by the user. The heated gas flows through the flowmeter 5 to measure the gas flow and then flows into the testing section 6 to measure the experimental parameters. The gas then flows into the electrokinetic regulating valve 7 and the electrokinetic regulating valve controller 9 controls the electrokinetic regulating valve 7 to regulate the flow of gas through the test section 6 by calculating the difference between the flow meter 5 and the user set point. And finally the exhaust gas is discharged through the exhaust port 16.
Collecting and storing test data: after the system operation condition is stable, the data acquisition and display device 18 starts to record and store the return values of the sensors in the experimental system.
In conclusion, the invention can simultaneously meet the requirements of high-pressure, large-flow and various gas sources, and overcomes the defects of the gas source supply device for the conventional experiment test, such as the condition that the fan can supply gas to realize large flow but cannot realize high pressure, and cannot change the gas types; the compressor can supply gas to realize high pressure, but the equipment cost is high when large flow is realized, and the gas type cannot be changed; the compressor and the gas storage tank can realize high pressure and large flow by comprehensive gas supply, but the high-pressure gas storage tank has high cost, needs a certain time for gas storage before the experiment, has poor instantaneity and can not change the gas types. The device also has the advantages of compact structure, low cost, flexible and reliable use, strong universality and the like. Therefore, the design modularization degree of the experimental test system can be effectively improved, the construction period of the experimental test system is shortened, and the method has good popularization and application prospects.
Claims (9)
1. The utility model provides a large-traffic gas experiment of high pressure multiple air supply feeding device for, includes gas transmission circuit, gas state control equipment and gas parameter acquisition system, its characterized in that:
the gas conveying loop comprises a gas bottle (1), and an outlet of the gas bottle (1) is connected with a gas inlet of the testing section (6) through a pipeline;
the gas state control equipment comprises a high-pressure stop valve (2), an electric pressure reducing valve (3), an electric heater (4) and an electric regulating valve (7), wherein the high-pressure stop valve (2), the electric pressure reducing valve (3) and the electric heater (4) are arranged on a connecting pipeline between a gas cylinder (1) and a test section (6), the electric regulating valve (7) is arranged at an outlet of the test section (6), the electric pressure reducing valve (3) is used for regulating gas pressure at an inlet of the test section (6) and is controlled by an electric pressure reducing valve controller (15), the electric pressure reducing valve controller (15) is used for driving the electric pressure reducing valve (3) to act by collecting a return value of a second pressure sensor (14) and calculating a difference value between the return value of the second pressure sensor (14) and a set pressure;
the gas parameter acquisition system comprises a first pressure sensor (11) for acquiring outlet pressure of a gas cylinder (1), a second pressure sensor (14) for acquiring gas inlet pressure of a testing section (6), a first temperature sensor (12) for acquiring gas temperature before heating of an electric heater (4), a second temperature sensor (13) for acquiring gas temperature after heating of the electric heater (4), a flowmeter (5) for acquiring gas inlet flow of the testing section (6), and a data acquisition and display device (18) connected with the first pressure sensor (11), the second pressure sensor (14), the second temperature sensor (13) and the output end of the flowmeter (5).
2. The multiple-gas-source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein a plurality of gas cylinders (1) are adopted, the gas cylinders with national standard specifications are horizontally placed in a steel cylinder frame (19) layer by layer, exhaust valves of the gas cylinders (1) are respectively connected with corresponding threaded connectors on gas conveying pipes (24) horizontally placed on the cylinder frame, so that high-pressure gas in the gas cylinders (1) enters the gas conveying branch pipes (24) through buffer pipes (21), and the high-pressure gas is conveyed into a gas mixing tank (23) at one end of the cylinder frame through the gas conveying branch pipes (24), so that the gas pressure in the pipelines is balanced.
3. The multiple gas source supply device for high-pressure large-flow gas experiments according to claim 2, characterized in that a one-way valve (20) is arranged between the buffer tube (21) and the gas transmission branch tube (24) to prevent gas from flowing back into the gas cylinder (1) to cause safety accidents.
4. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein the electric heater (4) is used for adjusting the gas temperature at the inlet of the testing section (6) and is controlled by an electric heater controller and a power supply box (10), the electric heater controller and the power supply box (10) enable the gas temperature at the inlet of the testing section (6) to reach the user set value by acquiring the return values of the first temperature sensor (12) and the second temperature sensor (13), calculating the difference value between the return value of the second temperature sensor (13) and the user set value by using a silicon controlled rectifier (scr) and adjusting the output power of the electric heater (4) steplessly.
5. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein the electric regulating valve (7) is used for regulating the flow of the gas flowing through the testing section (6) and is controlled by an electric regulating valve controller (9), the electric regulating valve controller (9) calculates the difference between the return value of the flowmeter (5) and a user set value by collecting the return value of the flowmeter (5) and utilizing PID (proportion integration differentiation), the electric regulating valve (7) is driven to open and close, the flow of the gas flowing through the testing section (6) reaches the user set value, and the gas is exhausted to the atmosphere through the exhaust port (16) after flowing through the electric regulating valve (7).
6. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, characterized in that a safety valve (8) is installed behind the electric pressure reducing valve (3) and used for limiting the highest pressure in a pipeline behind the electric pressure reducing valve (3), when the highest pressure in the pipeline reaches a set threshold of the safety valve (8), the safety valve (8) is automatically opened, and the air is exhausted through a pressure relief port (17), so that the experiment safety is ensured.
7. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein the data acquisition and display device (18) records and displays the inlet gas parameters of the test section in real time through the second pressure sensor (14) and the second temperature sensor (13), and simultaneously records and displays the return values of various sensors arranged in the test section (6) in real time.
8. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein the data acquisition and display device (18) monitors the output gas pressure of the gas cylinder (1) in real time through the first pressure sensor (11), and when the pressure value is smaller than a threshold value, an alarm is given to prompt the replacement of the gas cylinder.
9. The multiple gas source supply device for the high-pressure large-flow gas experiment according to claim 1, wherein all pipelines, flanges and connecting pieces in the device are made of 304 stainless steel, and the temperature sensors are made of platinum resistance temperature sensors.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201911151348.XA CN110873286B (en) | 2019-11-21 | 2019-11-21 | Multiple air source supply device for high-pressure large-flow gas experiment |
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| CN201911151348.XA CN110873286B (en) | 2019-11-21 | 2019-11-21 | Multiple air source supply device for high-pressure large-flow gas experiment |
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| CN110873286A CN110873286A (en) | 2020-03-10 |
| CN110873286B true CN110873286B (en) | 2020-08-25 |
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| CN111998227B (en) * | 2020-08-20 | 2022-04-29 | 湖北三江航天红峰控制有限公司 | Air supply system and air supply method for attitude and orbit control engine cold debugging |
| CN112378950B (en) * | 2020-10-14 | 2022-11-22 | 上海交通大学 | Experimental equipment for simulating heat transfer characteristics of high-temperature gas |
| CN113465969A (en) * | 2021-07-16 | 2021-10-01 | 苏州博年流体设备科技有限公司 | Freeze dryer performance testing device and freeze dryer performance testing method |
| CN114813137B (en) * | 2022-04-11 | 2023-02-17 | 哈尔滨工程大学 | Constant volume bomb air inlet and exhaust controllable air exchange bottle system |
| CN114911282A (en) * | 2022-05-31 | 2022-08-16 | 北京北方华创微电子装备有限公司 | Temperature control system and method for source bottle |
Family Cites Families (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6363728B1 (en) * | 2000-06-20 | 2002-04-02 | American Air Liquide Inc. | System and method for controlled delivery of liquefied gases from a bulk source |
| CN101200108B (en) * | 2006-12-15 | 2011-01-26 | 北京中拓机械有限责任公司 | Fluid flow control system of gas foaming agent |
| CN101046146A (en) * | 2007-04-06 | 2007-10-03 | 中国科学院广州能源研究所 | Simulating experiment equipment for 2D exploitation of natural gas hydrate |
| CN101696765B (en) * | 2009-11-03 | 2013-04-24 | 中国蓝星（集团）股份有限公司 | Boron trifluoride conveying device |
| CN101761326B (en) * | 2009-12-30 | 2013-07-31 | 中国科学院广州能源研究所 | Experimental device for carbon dioxide replacement exploitation of gas hydrate |
| CN101750194B (en) * | 2010-01-18 | 2012-07-04 | 北京艾迪西暖通科技有限公司 | Test platform for comprehensive performance of pressure-reducing valve |
| CN106907571B (en) * | 2017-02-21 | 2019-04-02 | 重庆川仪分析仪器有限公司 | Airline pressure control system and total carbon-hydrogen analyzer |
| CN108167647A (en) * | 2018-01-22 | 2018-06-15 | 北京东方通捷燃气有限责任公司 | A kind of natural gas is stood to a high-profile |
| CN108386716A (en) * | 2018-04-13 | 2018-08-10 | 张家港氢云新能源研究院有限公司 | A kind of the hydrogen evaporation gas recycling system and technique of liquid hydrogen hydrogenation stations |
| CN108916653B (en) * | 2018-07-10 | 2020-08-18 | 北京交通大学 | Hydrogen supply and regulation and control system |
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