CN114813137A - Constant volume bomb air inlet and exhaust controllable air exchange bottle system - Google Patents
Constant volume bomb air inlet and exhaust controllable air exchange bottle system Download PDFInfo
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- CN114813137A CN114813137A CN202210376142.2A CN202210376142A CN114813137A CN 114813137 A CN114813137 A CN 114813137A CN 202210376142 A CN202210376142 A CN 202210376142A CN 114813137 A CN114813137 A CN 114813137A
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/02—Details or accessories of testing apparatus
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M15/00—Testing of engines
- G01M15/04—Testing internal-combustion engines
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Abstract
The invention provides a controllable ventilation bottle system for air intake and exhaust of a constant volume bomb, and belongs to the field of experimental research of internal combustion engines. The problem of add gas pressure unstability and precision not enough in the current constant volume bullet is solved. The gas-containing gas cylinders are provided with a plurality of gas cylinders, the output end of each gas-containing gas cylinder is communicated with the inlet end of the second pipeline through a first pipeline, the outlet end of the second pipeline is communicated with the input end of the constant volume bomb, the second pipeline is provided with a first pressure sensor, the first pressure sensor is electrically connected with the control element, the gas flow rate sensor, the second pressure sensor and the electric regulating valve are electrically connected with the control element, and the control element controls the pressure in the second pipeline by controlling the opening and closing of the electric regulating valve. The control can be realized and the gas cylinder is required to be added to input gas into the gas cylinder and the gas is input into the single gas cylinder, the gas cylinder is replaced in the gas inlet process, the gas inlet pressure and the flow rate of the gas cylinder are set and adjusted, and the constant volume bomb environment is used for exhausting.
Description
Technical Field
The invention belongs to the field of internal combustion engine experimental research, and particularly relates to a constant volume bomb air inlet and exhaust controllable air exchange bottle system.
Background
In recent years, internal combustion engines in China are rapidly developed, research on the internal combustion engines is of great significance in military and civil aspects, and meanwhile, research on characteristics such as internal combustion engine internal combustion and the like is of theoretical support for further development and optimization of the internal combustion engines;
for the research of the internal combustion performance of the internal combustion engine, experiments are carried out in a constant volume bomb, relevant data are collected, a high-temperature high-pressure state in the internal combustion engine needs to be simulated, and the simulation under the actual condition is met, so that the accuracy of the data is ensured.
Disclosure of Invention
In view of this, the present invention provides a controllable ventilation bottle system for constant volume bomb to control air intake and exhaust, so as to solve the problems of unstable pressure and insufficient accuracy of the gas added in the existing constant volume bomb.
In order to achieve the purpose, the invention adopts the following technical scheme: a controllable ventilation bottle system for air intake and exhaust of a constant volume bomb comprises an air-containing bottle, a first pipeline, a constant volume bomb, a first pressure sensor, an electric regulating valve, a second pressure sensor, an air flow rate sensor, a control element and a second pipeline, the gas-containing cylinders are provided with a plurality of gas cylinders, the output end of each gas-containing cylinder is communicated with the inlet end of a second pipeline through a first pipeline, the outlet end of the second pipeline is communicated with the input end of a constant volume bomb, a first pressure sensor is arranged on the second pipeline, the first pressure sensors are electrically connected with the control element, each first pipeline is sequentially provided with a gas flow velocity sensor, a second pressure sensor and an electric regulating valve from the input end to the output end, the gas flow rate sensor, the second pressure sensor and the electric regulating valve are all electrically connected with the control element, the control element controls the pressure in the second pipeline by controlling the opening and closing of the electric regulating valve.
Furthermore, the output end of the constant volume bomb is communicated with a third pipeline, a gas relief valve is arranged on the third pipeline, and the gas relief valve is electrically connected with the control element.
Furthermore, the control element is arranged in the control box, the control box is provided with a control panel, the control panel is provided with a plurality of gas flow rate indicating tables in one-to-one correspondence with the gas flow rate sensors and used for displaying data collected by the corresponding gas flow rate sensors, the control panel is provided with a plurality of gas pressure indicating tables in one-to-one correspondence with the second pressure sensors and used for displaying data collected by the corresponding second pressure sensors, and the control panel is provided with a third gas pressure indicating table used for displaying pressure indicating numbers of the first pressure sensors.
Furthermore, a safety valve is arranged on the second pipeline, and a pressure relief opening of the safety valve is communicated with a gas-free cylinder.
Furthermore, the number of the first pipelines is two, a switch valve is arranged between the inlet end of each first pipeline and the gas flow rate sensor, and all the switch valves are electrically connected with the control element.
Furthermore, the control panel is provided with an air inlet button electrically connected with the control element, and the air inlet button is used for controlling whether the gas-containing gas cylinder outputs gas or not.
Furthermore, the control panel is provided with a ventilation button electrically connected with the control element, and the ventilation button is used for controlling the replacement of the gas-containing gas cylinder to output gas.
Furthermore, an exhaust button for controlling the opening and closing of the exhaust relief valve is arranged on the control panel.
Furthermore, the control element comprises a single chip microcomputer, a display screen, a digital-to-analog converter and an analog-to-digital converter.
Further, the air exchange bottle system is mounted on a horse wheel.
Compared with the prior art, the invention has the beneficial effects that:
1. the air inlet pressure in the second pipeline can be changed, the environmental pressure in the constant volume bomb is further changed, and air inlet treatment is carried out according to the set air pressure and flow rate after signals for opening and closing are given;
2. the control requirements of gas input of the gas cylinder, gas inlet of the gas cylinder during single-cylinder gas inlet, replacement of the gas inlet cylinder during gas inlet of the gas cylinder, setting and adjusting of gas inlet pressure and flow rate of the gas cylinder and exhaust of a constant volume bomb environment can be met;
3. the system can ensure stable and safe operation of the system, when the pressure is overlarge, the safety valve and the gas-free cylinder are matched to collect gas when the gas pressure is overlarge, so that the gas is prevented from overflowing, and when the system is not used, the gas can be sealed in the gas-containing cylinder;
4. the feedback correction can be further carried out through the measurement of related parameters, the accuracy of each parameter is ensured, and the accuracy of air intake is improved;
5. the entire system adopts the wheel of fortune horse in the aspect of removing, when guaranteeing that the device is stable, also can guarantee the mobility of device, makes it to adjust.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate an embodiment of the invention and, together with the description, serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a schematic structural view of a constant volume bomb intake and exhaust controllable ventilation bottle system according to the present invention;
FIG. 2 is a schematic view of the internal structure of the control box according to the present invention;
FIG. 3 is a schematic view of the connection of an indicator inside the control box according to the present invention;
fig. 4 is a control schematic diagram of a constant volume bomb air intake and exhaust controllable air exchanging bottle system according to the invention.
An on-off valve 1; a gas-containing gas cylinder 2; a first duct 3; a first air pressure gauge 4; a first gas flow rate indicator table 5; a control box 6; an intake button 7; a ventilation button 8; a second air pressure gauge 9; an exhaust button 10; a third air pressure gauge 11; a second gas flow rate indicator 12; a data line 13; a non-gas containing cylinder 14; a constant volume bomb 15; a safety valve 16; a first pressure sensor 17; a control panel 18; an electric control valve 19; a second pressure sensor 20; a gas flow rate sensor 21; a control element 22; a nut 23; a waste gate valve 24; a second duct 25; a third conduit 26.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely explained below with reference to the drawings in the embodiments of the present invention. It should be noted that, in the present invention, the embodiments and features of the embodiments may be combined with each other without conflict, and the described embodiments are only a part of the embodiments of the present invention, not all of the embodiments.
Referring to the accompanying drawings for explaining the embodiment, the controllable ventilation cylinder system for air intake and exhaust of the constant volume bomb comprises a plurality of gas-containing gas cylinders 2, a first pipeline 3, a constant volume bomb 15, a first pressure sensor 17, an electric regulating valve 19, a second pressure sensor 20, a gas flow rate sensor 21, a control element 22 and a second pipeline 25, wherein the gas-containing gas cylinders 2 are arranged in a plurality, the output end of each gas-containing gas cylinder 2 is communicated with the inlet end of the second pipeline 25 through one first pipeline 3, the outlet end of the second pipeline 25 is communicated with the input end of the constant volume bomb 15, the first pressure sensor 17 is arranged on the second pipeline 25, the first pressure sensor 17 is electrically connected with the control element 22 through one data line 13, the gas flow rate sensor 21, the second pressure sensor 20 and the electric regulating valve 19 are sequentially arranged on each first pipeline 3 from the input end to the output end, and the gas flow rate sensor 21, the electric regulating valve 19 are sequentially arranged on each first pipeline 3, The second pressure sensor 20 and the electric control valve 19 are electrically connected to a control unit 22, and the control unit 22 controls the pressure in the second pipe 25 by controlling the opening and closing of the electric control valve 19.
In this embodiment, the output end of the constant volume bomb 15 is communicated with a third pipeline 26, a waste gas relief valve 24 is arranged on the third pipeline 26, the waste gas relief valve 24 is electrically connected with the control element 22 through one data line 13, and the control element 22 controls the opening and closing of the waste gas relief valve 24 to complete the discharge of gas.
In this embodiment, the control element 22 is disposed in the control box 6, the control box 6 is provided with the control panel 18, the control panel 18 is provided with a plurality of gas flow rate indicators corresponding to the gas flow rate sensors 21 one by one for displaying data collected by the corresponding gas flow rate sensors 21, the control panel 18 is provided with a plurality of gas pressure indicators corresponding to the second pressure sensors 20 one by one for displaying data collected by the corresponding second pressure sensors 20, the control panel 18 is provided with the third gas pressure indicator 11 for displaying pressure indicators of the first pressure sensors 17, and data of each indicator can be observed through the displayed data.
In the embodiment, the safety valve 16 is disposed on the second pipeline 25, the non-gas cylinder 14 is communicated with a pressure relief port of the safety valve 16, and when the pressure in the second pipeline 25 is too high, the safety valve 16 overflows, and overflowing gas enters the non-gas cylinder 14, so that the gas is prevented from leaking to the outside to cause air pollution or danger. In order to provide a signal when the safety valve is started conveniently, a pressure sensor can be added behind the safety valve, data of the pressure sensor is transmitted to a control panel for display, a design program checks pressure change, and alarm prompt is carried out when the pressure is reduced sharply.
In this embodiment, the number of the first pipelines 3 is two, and the two first pipelines 3 are both communicated with the second pipeline 25, which may specifically be: the two first pipelines 3 are connected with the second pipeline 25 through a U-shaped pipe, the communicated part of the first pipelines 3 and the second pipeline 25 is fixed through a nut 23 to ensure air tightness, a switch valve 1 is arranged between the inlet end of each first pipeline 3 and the gas flow rate sensor 21, all the switch valves 1 are electrically connected with a control element 22, the switch valve 1 can completely seal gas in the corresponding gas-containing gas cylinders 2 when the system is not used, the output ends of the two first pipelines 3 are communicated with the second pipeline 25, the two first pipelines 3 respectively correspond to the two gas-containing gas cylinders 2, the control element 22 controls the switch valve 1 to open and close, which gas-containing gas cylinder 2 supplies gas or the two gas-containing gas cylinders 2 simultaneously discharge gas, wherein the first gas flow rate indicator 5 and the second gas flow rate indicator 12 respectively and correspondingly collect signals of the gas flow rate sensors 21 on the two first pipelines 3, the gas flow rate data in the two first pipelines 3 are displayed, the first gas pressure indicating meter 4 and the second gas pressure indicating meter 9 respectively and correspondingly acquire signals of the second pressure sensors 20 on the two first pipelines 3, the gas pressure data in the two first pipelines 3 are displayed, the pressure in the second pipeline 25 detected by the first pressure sensor 17 is matched, the pressure is displayed through the third gas pressure indicating meter 11, the opening and closing degree of the corresponding electric control valve 19 on the two first pipelines 3 is adjusted according to the pressure in the second pipeline 25, the gas flow rate and the pressure in the second pipeline 25 are stabilized, and the flow rate and the pressure of the gas entering the constant volume bomb are ensured.
In this embodiment, the control panel 18 on the control box 6 can realize the opening and closing of the whole system, the control panel 18 is provided with an air inlet button 7 electrically connected with the control element 22, and the air inlet button 7 is used for controlling whether the gas-containing gas cylinder 2 outputs gas or not.
In the present embodiment, the control panel 18 is provided with a ventilation button 8 electrically connected to the control element 22, and the ventilation button 8 is used for controlling the replacement of the gas-containing gas cylinder 2 to output gas.
In the present embodiment, the control panel 18 is provided with an exhaust button 10 for controlling the opening and closing of the waste gate 24, and the control element 22 controls the opening and closing of the waste gate 24 according to the actual use condition, thereby completing the discharge of the gas after the test.
In this embodiment, the control element 22 includes a single chip, a display screen, a digital-to-analog converter and an analog-to-digital converter.
In this embodiment, the bottle system of taking a breath installs on the horse wheel, and the system of being convenient for removes in the laboratory, increases the convenience of removing.
When the system is not used, gas can be sealed in the gas-containing gas cylinder 2 through the switch valve 1, when the system is used, the switch valve 1 is opened to enable the gas in the gas-containing gas cylinder 2 to be input into the second pipeline 25 through the first pipeline 3, a single gas-containing gas cylinder 2 can be used for supplying gas, different gas-containing gas cylinders 2 can be switched to supply gas, or two gas-containing gas cylinders 2 can be used for supplying gas simultaneously, in the gas supply process, the second pressure sensor 20 on the corresponding first pipeline 3 can collect corresponding data to be displayed on the first gas flow rate indicator 4 and the second gas flow rate indicator 9, the gas flow rate sensor 21 on the corresponding first pipeline 3 can collect corresponding data of the gas flow rate sensor 21 to be displayed on the first gas flow rate indicator 5 and the second gas flow rate indicator 12, the measured data is compared with the data collected by the first pressure sensor 17 through the control element 22, therefore, the opening and closing degrees of the two electric control valves 19 are controlled, the purpose of stabilizing the pressure and the flow rate in the second pipeline 25 is achieved, the gas can be input into the constant volume bomb according to the required gas inlet condition through comparison of all parameters, and the system can be installed on the Frequ wheel to be lifted and moved conveniently.
The embodiments of the invention disclosed above are intended merely to aid in the explanation of the invention. The examples are not intended to be exhaustive or to limit the invention to the precise forms disclosed. Many modifications and variations are possible in light of the above teaching. The embodiments were chosen and described in order to best explain the principles of the invention and the practical application, to thereby enable others skilled in the art to best utilize the invention.
Claims (10)
1. The utility model provides a controllable air bottle system of taking a breath of constant volume bullet advances exhaust which characterized in that: comprises a plurality of gas-containing gas cylinders (2), first pipelines (3), constant volume bombs (15), first pressure sensors (17), an electric control valve (19), second pressure sensors (20), gas flow rate sensors (21), a control element (22) and second pipelines (25), wherein the output end of each gas-containing gas cylinder (2) is communicated with the inlet end of the second pipeline (25) through one first pipeline (3), the outlet end of the second pipeline (25) is communicated with the input end of the constant volume bombs (15), the second pipeline (25) is provided with the first pressure sensors (17), the first pressure sensors (17) are electrically connected with the control element (22), each first pipeline (3) is sequentially provided with the gas flow rate sensors (21), the second pressure sensors (20) and the electric control valve (19) from the input end to the output end, the gas flow rate sensor (21), the second pressure sensor (20) and the electric regulating valve (19) are all electrically connected with a control element (22), and the control element (22) controls the pressure in the second pipeline (25) by controlling the opening and closing of the electric regulating valve (19).
2. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 1, wherein: the output end of the constant volume bomb (15) is communicated with a third pipeline (26), a gas relief valve (24) is arranged on the third pipeline (26), and the gas relief valve (24) is electrically connected with the control element (22).
3. The constant volume bomb intake and exhaust controllable ventilation bottle system according to claim 1, characterized in that: control element (22) set up in control box (6), be provided with control panel (18) on control box (6), be equipped with a plurality of gas flow rate representative table with gas velocity of flow sensor (21) one-to-one on control panel (18) and be used for showing the data that correspond gas velocity of flow sensor (21) and gather, be equipped with a plurality of atmospheric pressure representative tables with second pressure sensor (20) one-to-one on control panel (18) and be used for showing the data that correspond second pressure sensor (20) and gather, set up third atmospheric pressure representative table (11) that are used for showing first pressure sensor (17) pressure representative table on control panel (18).
4. The constant volume bomb intake and exhaust controllable ventilation bottle system according to claim 3, characterized in that: and a safety valve (16) is arranged on the second pipeline (25), and a pressure relief opening of the safety valve (16) is communicated with a gas-free cylinder (14).
5. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 1, wherein: the number of the first pipelines (3) is two, one switch valve (1) is arranged between the inlet end of each first pipeline (3) and the gas flow rate sensor (21), and all the switch valves (1) are electrically connected with the control element (22).
6. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 1, wherein: the control panel (18) is provided with an air inlet button (7) electrically connected with the control element (22), and the air inlet button (7) is used for controlling whether the gas-containing gas cylinder (2) outputs gas or not.
7. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 1, wherein: the control panel (18) is provided with a ventilation button (8) electrically connected with the control element (22), and the ventilation button (8) is used for controlling and replacing the gas-containing gas cylinder (2) to output gas.
8. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 2, wherein: and an exhaust button (10) for controlling the opening and closing of the exhaust pressure relief valve (24) is arranged on the control panel (18).
9. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in any one of claims 1-8, wherein: the control element (22) comprises a single chip microcomputer, a display screen, a digital-to-analog converter and an analog-to-digital converter.
10. The constant volume bomb intake and exhaust controllable ventilation bottle system as claimed in claim 9, wherein: the ventilation bottle system is installed on the horse wheel.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202210376142.2A CN114813137B (en) | 2022-04-11 | 2022-04-11 | Constant volume bomb air inlet and exhaust controllable air exchange bottle system |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210376142.2A CN114813137B (en) | 2022-04-11 | 2022-04-11 | Constant volume bomb air inlet and exhaust controllable air exchange bottle system |
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| CN114813137A true CN114813137A (en) | 2022-07-29 |
| CN114813137B CN114813137B (en) | 2023-02-17 |
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| CN114813137B (en) | 2023-02-17 |
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