CN113092121A - Gas path control method and system for train tail detection table - Google Patents
Gas path control method and system for train tail detection table Download PDFInfo
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- CN113092121A CN113092121A CN202110369745.5A CN202110369745A CN113092121A CN 113092121 A CN113092121 A CN 113092121A CN 202110369745 A CN202110369745 A CN 202110369745A CN 113092121 A CN113092121 A CN 113092121A
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- 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
- G01M15/10—Testing internal-combustion engines by monitoring exhaust gases or combustion flame
- G01M15/102—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases
- G01M15/106—Testing internal-combustion engines by monitoring exhaust gases or combustion flame by monitoring exhaust gases using pressure sensors
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Abstract
The invention provides a gas circuit control method and a gas circuit control system for a train tail detection table, which relate to the technical field of equipment control and comprise the following steps: closing each valve in the train tail detection table, and inflating a cylinder of the train tail detection table by using an air compressor to enable the air pressure in the cylinder to reach a first preset pressure; sequentially adjusting the proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection platform of the proportional valve under the condition of each preset opening and closing degree, wherein the opening and closing degree is used for controlling target pressure when gas in the air cylinder flows to an air outlet of the train tail detection platform; adjust the proportional valve to the target degree of opening and shutting to open the air outlet valve in the row's tail detects the platform, confirm that the row's tail detects the exhaust flow of platform, solved current row's tail and detected the long technical problem of consuming time of platform when testing the wind pressure.
Description
Technical Field
The invention relates to the technical field of equipment control, in particular to a gas circuit control method and a gas circuit control system for a train tail detection table.
Background
In the prior art, a train tail host detection table specified by an iron standard TB/T2973-2006 has the functions of detecting the pressure division precision of 400kPa, 500kPa and 600kPa of train tail hosts and detecting wind pressure under-voltage alarm, and the current general flow in the industry is as follows:
detecting the work of an air compressor of the platform, increasing the pressure of an air cylinder to 400kPa, stopping the work of the air compressor, and detecting the wind pressure precision of a train tail host;
the detection platform air compressor works, the air cylinder pressure is increased to 500kPa, and the air pressure precision of the train tail host is detected;
the detection platform simulates wind pressure leakage, slowly reduces the pressure of the cylinder to 460Kpa, and detects the low wind pressure alarm function of the train tail host;
detecting the work of an air compressor of the platform, increasing the pressure of an air cylinder to 600kPa, and detecting the wind pressure precision of the train tail host;
the detection table detects the exhaust function of the train tail host, the pressure of the air cylinder of the detection table is reduced in the train tail host development exhaust valve 2s, and whether the exhaust channel of the train tail host is smooth or not is judged through the reduced pressure value.
Through the process, the constant pressure values of 400kPa, 500kPa, 600kPa and 460kPa can be provided for the train tail host by realizing that the absolute pressure of the air cylinder is not changed.
According to actual field operation, the volume of a cylinder of a detection table is 22L-28L, an air compressor works for about 3 minutes, the pressure of the cylinder is increased to 400kPa and stabilized for about 1 minute, the pressure is reduced, and the compressor is started to pressurize until the pressure is stabilized at 400 kPa. However, it takes much time to complete the above-mentioned complete flow.
No effective solution has been proposed to the above problems.
Disclosure of Invention
In view of the above, the present invention provides a gas path control method and system for a train tail detection platform, so as to alleviate the technical problem that the existing train tail detection platform takes a long time when testing wind pressure.
In a first aspect, an embodiment of the present invention provides a gas path control method for a train tail detection station, including: closing each valve in the train tail detection table, and inflating a cylinder of the train tail detection table by using an air compressor to enable the air pressure in the cylinder to reach a first preset pressure; sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table; adjusting the proportional valve to a target opening and closing degree, opening an air outlet valve of the train tail detection platform, and determining the exhaust flow of the train tail detection platform, wherein the target opening and closing degree is the opening and closing degree of the proportional valve when no gas in the cylinder flows to a main engine of the train tail detection platform; wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
Further, adjust the proportional valve in proper order to each degree of opening and shutting of predetermineeing, and determine the proportional valve is in under each condition of predetermineeing the degree of opening and shutting, the operating parameter of the platform is examined to the end of being listed as, includes: adjusting the proportional valve to a first preset opening and closing degree so as to enable the target pressure to be a second preset pressure, and determining the first working parameter; adjusting the proportional valve to a second preset opening and closing degree to enable the target pressure to be a third preset pressure, and determining a second working parameter; adjusting the proportional valve to a third preset opening and closing degree so as to enable the target pressure to be a fourth preset pressure and determine a third working parameter; and adjusting the proportional valve to a fourth preset opening and closing degree so as to enable the target pressure to be a fifth preset pressure and determine a fourth working parameter.
Further, the first preset pressure is 600kPa, the second preset pressure is 400kPa, the third preset pressure is 500kPa, the fourth preset pressure is 600kPa, and the fifth preset pressure is 460kPa or 560 kPa.
Further, determining the exhaust flow of the train tail detection table comprises: and calculating the exhaust flow of the train tail detection table by using an exhaust flow calculation formula, wherein the exhaust flow calculation formula is the exhaust flow of the train tail detection table (air pressure in an air cylinder before exhaust-air pressure in an air cylinder after exhaust)/exhaust time.
Further, the method further comprises: and if the wind pressure of the train tail detection platform is smaller than the preset wind pressure, generating alarm information.
In a second aspect, an embodiment of the present invention further provides a gas path control system for a train tail detection station, including: the train tail detection platform comprises an air compressor, an air cylinder, a proportional valve, an air outlet valve, a pressure sensor and a train tail detection platform host, wherein the train tail detection platform host is respectively connected with the proportional valve and the pressure sensor, and the air cylinder is respectively connected with the air compressor, the proportional valve and the air outlet valve; the air compressor is used for inflating the air cylinder so as to enable the air pressure in the air cylinder to reach a first preset pressure; the cylinder is used for storing gas filled in by the air compressor; the air outlet valve is used for discharging gas in the cylinder; the train tail detection table host is used for sequentially adjusting the proportional valves to each preset opening and closing degree, determining working parameters of the train tail detection table corresponding to each preset opening and closing degree, adjusting the proportional valves to target opening and closing degrees after the working parameters of the train tail detection table are determined, controlling the air outlet valves to be opened, and determining the exhaust flow of the train tail detection table, wherein the preset opening and closing degrees are used for controlling the target pressure when the gas in the cylinder flows to the train tail detection table host, and the target opening and closing degrees are the opening and closing degrees of the proportional valves when no gas in the cylinder flows to the train tail detection table host; the pressure sensor is used for collecting air pressure in the air cylinder and detecting target pressure corresponding to each preset opening and closing degree; wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
Further, the system further comprises: the air outlet is respectively connected with the proportional valve and the air outlet valve, and the proportional valve exhaust hole is connected with the proportional valve.
Further, the pressure sensor includes: the air outlet is connected with the proportional valve, and the air outlet is connected with the proportional valve; the first pressure sensor is used for determining the air pressure in the air cylinder; and the second pressure sensor is used for detecting the target pressure corresponding to each preset opening and closing degree.
Further, the system further comprises: the unloading valve is respectively connected with the air compressor and the air cylinder; the unloading valve is used for unloading the outlet pressure of the air compressor before the air compressor charges the air cylinder.
Further, the system further comprises: the air cylinder is connected with the air cylinder through a pressure reducing valve; the pressure reducing valve is used for reducing the air pressure in the air cylinder.
In the embodiment of the invention, each valve in the train tail detection table is closed, and an air compressor is utilized to inflate an air cylinder of the train tail detection table, so that the air pressure in the air cylinder reaches a first preset pressure; sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table; and opening an air outlet valve of the train tail detection platform, and determining the air exhaust flow of the train tail detection platform. This application is controlled cylinder output air pressure through the proportional valve, has reached air compressor and need not to carry out work once more after work, and the train tail detects the purpose that the platform just can test the wind pressure, and then has solved current train tail and has detected the long technical problem consuming time of platform when testing the wind pressure to realized promoting the technical effect who is listed as tail detection platform ground work efficiency.
Additional features and advantages of the invention will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. The objectives and other advantages of the invention will be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
Fig. 1 is a schematic view of a gas path control system of a train tail detection station according to an embodiment of the present invention;
fig. 2 is a schematic diagram of an air path control system of another train tail detection station according to an embodiment of the present invention;
fig. 3 is a flowchart of a gas path control method for a train tail detection station according to an embodiment of the present invention;
fig. 4 is a flowchart of another gas path control method for a train tail detection station according to an embodiment of the present invention.
Detailed Description
To make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions of the present invention will be clearly and completely described below with reference to the accompanying drawings, and it is apparent that the described embodiments are some, but not all embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
The first embodiment is as follows:
according to an embodiment of the present invention, an embodiment of a gas path control system of a train tail inspection station is provided, fig. 1 is a schematic diagram of the gas path control system of the train tail inspection station according to the embodiment of the present invention, and as shown in fig. 1, the system includes: the system comprises an air compressor 10, an air cylinder 20, a proportional valve 30, an air outlet valve 40, a pressure sensor 50 and a train tail detection table host 60, wherein the train tail detection table host is respectively connected with the proportional valve and the pressure sensor, and the air cylinder is respectively connected with the air compressor, the proportional valve and the air outlet valve;
the air compressor 10 is used for inflating the cylinder so as to enable the air pressure in the cylinder to reach a first preset pressure;
the cylinder 20 is used for storing gas filled in by the air compressor;
the air outlet valve 40 is used for discharging gas in the cylinder;
the train tail detection table host 60 is configured to sequentially adjust the proportional valve to each preset opening and closing degree, determine working parameters of the train tail detection table corresponding to each preset opening and closing degree, and after determining the working parameters of the train tail detection table, adjust the proportional valve to a target opening and closing degree, control the air outlet valve to open, and determine an exhaust flow rate of the train tail detection table, where the preset opening and closing degree is used to control a target pressure when gas in the cylinder flows to the train tail detection table host, and the target opening and closing degree is the opening and closing degree of the proportional valve when no gas in the cylinder flows to the train tail detection table host;
the pressure sensor 50 is used for collecting air pressure in the air cylinder and detecting target pressure corresponding to each preset opening and closing degree;
wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
In addition, according to the specification of the iron standard TB/T2973-2006, the first preset pressure is 600kPa, the second preset pressure is 400kPa, the third preset pressure is 500kPa, the fourth preset pressure is 600kPa, and the fifth preset pressure is 460kPa or 560 kPa.
In the embodiment of the invention, each valve in the train tail detection table is closed, and an air compressor is utilized to inflate an air cylinder of the train tail detection table, so that the air pressure in the air cylinder reaches a first preset pressure; sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table; and opening an air outlet valve of the train tail detection platform, and determining the air exhaust flow of the train tail detection platform. This application is controlled cylinder output air pressure through the proportional valve, has reached air compressor and need not to carry out work once more after work, and the train tail detects the purpose that the platform just can test the wind pressure, and then has solved current train tail and has detected the long technical problem consuming time of platform when testing the wind pressure to the technical effect who promotes the train tail and detect the work efficiency of platform has been realized.
The operation of the gas path control system of the train tail detection station will be described with reference to fig. 1.
After the train tail detection platform is started, all valves in the train tail detection platform are closed by using a train tail detection platform host, the air compressor is controlled to start working, and air is filled into the air cylinder until the air pressure in the air cylinder detected by the sensor reaches 600kPa (first preset pressure).
The train tail detection table host adjusts the proportional valve to a first preset opening and closing degree, so that the target pressure of gas in the cylinder when the gas flows to the train tail detection table host is 400kPa (second preset pressure), and the partial pressure precision of the train tail detection table host is determined.
And adjusting the proportional valve to a second preset opening and closing degree so that the target pressure of the gas in the cylinder when the gas flows to the train tail detection table host is 500kPa (third preset pressure), and determining the partial pressure precision of the train tail detection table host.
And adjusting the proportional valve to a third preset opening and closing degree so that the target pressure of the gas in the cylinder when the gas flows to the train tail detection table host machine is 600kPa (fourth preset pressure), and determining the partial pressure precision of the train tail detection table host machine.
And adjusting the proportional valve to a fourth preset opening and closing degree so that the target pressure of the gas in the cylinder when the gas flows to the train tail detection platform host machine is 460kPa or 560kPa (fifth preset pressure), and determining the wind pressure of the train tail detection platform.
It should be noted that if the determined wind pressure of the train tail detection table is smaller than the preset wind pressure, the train tail detection table host generates alarm information.
After detecting out the wind pressure that the platform was examined to the train tail, adjust the proportional valve to the target degree of opening and shutting to make the gaseous flow direction in the cylinder the pressure that the platform host computer was examined to the train tail is 0kPa, and opens the air outlet valve that the platform was examined to the train tail confirms the exhaust flow of the platform is examined to the train tail.
The exhaust air flow calculation formula is the exhaust air flow of the train tail detection table (air pressure in the pre-exhaust air cylinder-air pressure in the post-exhaust air cylinder)/exhaust air time.
When the detection table detects the exhaust function of the train tail host, the train tail host opens the exhaust valve for 2s, the pressure of the air cylinder of the detection table is reduced, and whether the exhaust channel of the train tail host is smooth or not is judged through the reduced pressure value.
By adopting the train tail detection table air path control system in the embodiment of the invention, the working time of the air compressor during the wind pressure detection of the train tail detection table is saved, all preset pressure outputs are controlled by the proportional valve, the air compressor does not need to work in the detection process, the working time of the air compressor is saved, and the time for stabilizing the air pressure after the air compressor works can be saved. Therefore, the working time of the train tail detection host can be greatly saved. A set of complete flow is detected, only 4-5 minutes are needed, and about 10 minutes is saved compared with the existing train tail detection table gas circuit control system.
In an embodiment of the present invention, as shown in fig. 2, the system further includes: air outlet 70 and proportional valve exhaust hole 80, wherein, the air outlet respectively proportional valve with the air-out valve is connected, proportional valve exhaust hole with the proportional valve is connected.
The pressure sensor 50 includes: a first pressure sensor 51 and a second pressure sensor 52, wherein the first pressure sensor is arranged in the cylinder, and the second pressure sensor is arranged in a pipeline between the air outlet and the proportional valve;
the first pressure sensor 51 is used for determining the air pressure in the air cylinder;
the second pressure sensor 52 is configured to detect target pressures corresponding to the preset opening and closing degrees.
The system further comprises: an unloading valve 90 connected to the air compressor and the cylinder, respectively;
the unloader valve 90 is used to unload the outlet pressure of the air compressor before the air compressor charges the cylinder.
It should be noted that, since the compressor can be started only after the outlet pressure of the compressor is removed when the air compressor is operated, the unloading valve needs to be removed before the air compressor charges the air cylinder, so as to remove the outlet pressure of the air compressor.
The system further comprises: a pressure reducing valve 100 and a pressure reducing valve vent hole 110, wherein the pressure reducing valve is connected to the cylinder and the pressure reducing valve vent hole, respectively;
the pressure reducing valve 100 is used to reduce the air pressure in the air cylinder.
Example two:
the embodiment of the invention also provides a gas circuit control method of the train tail detection table, the gas circuit control system of the train tail detection table is used for executing the gas circuit control method of the train tail detection table, and the following is a specific introduction of the gas circuit control of the train tail detection table provided by the embodiment of the invention.
As shown in fig. 3, fig. 3 is a flowchart of the gas path control of the train tail detection station, and the gas path control method of the train tail detection station includes:
step S102, closing each valve in the train tail detection table, and inflating an air cylinder of the train tail detection table by using an air compressor to enable the air pressure in the air cylinder to reach a first preset pressure;
step S104, sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table;
step S106, opening an air outlet valve of the train tail detection table, and determining the exhaust flow of the train tail detection table;
wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
In the embodiment of the invention, each valve in the train tail detection table is closed, and an air compressor is utilized to inflate an air cylinder of the train tail detection table, so that the air pressure in the air cylinder reaches a first preset pressure; sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table; and opening an air outlet valve of the train tail detection platform, and determining the air exhaust flow of the train tail detection platform. This application is controlled cylinder output air pressure through the proportional valve, has reached air compressor and need not to carry out work once more after work, and the train tail detects the purpose that the platform just can test the wind pressure, and then has solved current train tail and has detected the long technical problem consuming time of platform when testing the wind pressure to the technical effect who promotes the train tail and detect the work efficiency of platform has been realized.
Preferably, adjust the proportional valve in proper order to each degree of opening and shutting of predetermineeing, and determine the proportional valve is in under each condition of predetermineeing the degree of opening and shutting, the operating parameter of the platform is examined to the end of being listed as, includes: adjusting the proportional valve to a first preset opening and closing degree so as to enable the target pressure to be a second preset pressure, and determining the first working parameter; adjusting the proportional valve to a second preset opening and closing degree to enable the target pressure to be a third preset pressure, and determining a second working parameter; adjusting the proportional valve to a third preset opening and closing degree so as to enable the target pressure to be a fourth preset pressure and determine a third working parameter; and adjusting the proportional valve to a fourth preset opening and closing degree so as to enable the target pressure to be a fifth preset pressure and determine a fourth working parameter.
Preferably, the first preset pressure is 600kPa, the second preset pressure is 400kPa, the third preset pressure is 500kPa, the fourth preset pressure is 600kPa, and the fifth preset pressure is 460kPa or 560 kPa.
Preferably, the determining the exhaust air flow rate of the train tail detection table comprises: and calculating the exhaust flow of the train tail detection table by using an exhaust flow calculation formula, wherein the exhaust flow calculation formula is that the exhaust flow of the train tail detection table is (air pressure in an air cylinder before exhaust-air pressure in an air cylinder after exhaust)/exhaust time.
Preferably, as shown in fig. 4, the method further includes: and S105, if the wind pressure of the train tail detection table is smaller than the preset wind pressure, generating alarm information.
In addition, in the description of the embodiments of the present invention, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in specific cases to those skilled in the art.
In the description of the present invention, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of description and simplicity of description, but do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. Furthermore, the terms "first," "second," and "third" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the several embodiments provided in the present application, it should be understood that the disclosed system, apparatus and method may be implemented in other ways. The above-described embodiments of the apparatus are merely illustrative, and for example, the division of the units is only one logical division, and there may be other divisions when actually implemented, and for example, a plurality of units or components may be combined or integrated into another system, or some features may be omitted, or not executed. In addition, the shown or discussed mutual coupling or direct coupling or communication connection may be an indirect coupling or communication connection of devices or units through some communication interfaces, and may be in an electrical, mechanical or other form.
The units described as separate parts may or may not be physically separate, and parts displayed as units may or may not be physical units, may be located in one place, or may be distributed on a plurality of network units. Some or all of the units can be selected according to actual needs to achieve the purpose of the solution of the embodiment.
In addition, functional units in the embodiments of the present invention may be integrated into one processing unit, or each unit may exist alone physically, or two or more units are integrated into one unit.
Finally, it should be noted that: the above-mentioned embodiments are only specific embodiments of the present invention, which are used for illustrating the technical solutions of the present invention and not for limiting the same, and the protection scope of the present invention is not limited thereto, although the present invention is described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: any person skilled in the art can modify or easily conceive the technical solutions described in the foregoing embodiments or equivalent substitutes for some technical features within the technical scope of the present disclosure; such modifications, changes or substitutions do not depart from the spirit and scope of the embodiments of the present invention, and they should be construed as being included therein. Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. The gas path control method of the train tail detection table is characterized by comprising the following steps:
closing each valve in the train tail detection table, and inflating a cylinder of the train tail detection table by using an air compressor to enable the air pressure in the cylinder to reach a first preset pressure;
sequentially adjusting a proportional valve to each preset opening and closing degree, and determining working parameters of the train tail detection table under the condition that the proportional valve is in each preset opening and closing degree, wherein the preset opening and closing degree is used for controlling target pressure when gas in the cylinder flows to a main engine of the train tail detection table;
adjusting the proportional valve to a target opening and closing degree, opening an air outlet valve of the train tail detection platform, and determining the exhaust flow of the train tail detection platform, wherein the target opening and closing degree is the opening and closing degree of the proportional valve when no gas flows to a main engine of the train tail detection platform in the cylinder;
wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
2. The method according to claim 1, wherein the working parameters of the train tail detection table for sequentially adjusting the proportional valve to each preset opening and closing degree and determining that the proportional valve is in the condition of each preset opening and closing degree comprise:
adjusting the proportional valve to a first preset opening and closing degree so as to enable the target pressure to be a second preset pressure, and determining the first working parameter;
adjusting the proportional valve to a second preset opening and closing degree to enable the target pressure to be a third preset pressure, and determining a second working parameter;
adjusting the proportional valve to a third preset opening and closing degree so as to enable the target pressure to be a fourth preset pressure and determine a third working parameter;
and adjusting the proportional valve to a fourth preset opening and closing degree so as to enable the target pressure to be a fifth preset pressure and determine a fourth working parameter.
3. The method according to claim 2, wherein the first predetermined pressure is 600kPa, the second predetermined pressure is 400kPa, the third predetermined pressure is 500kPa, the fourth predetermined pressure is 600kPa, and the fifth predetermined pressure is 460kPa or 560 kPa.
4. The method of claim 1, wherein determining an exhaust flow rate of the train end inspection station comprises:
and calculating the exhaust flow of the train tail detection table by using an exhaust flow calculation formula, wherein the exhaust flow calculation formula is that the exhaust flow of the train tail detection table is (air pressure in an air cylinder before exhaust-air pressure in an air cylinder after exhaust)/exhaust time.
5. The method of claim 1, further comprising:
and if the wind pressure of the train tail detection platform is smaller than the preset wind pressure, generating alarm information.
6. The utility model provides a gas circuit control system who is listed as tail and examines test table which characterized in that includes: the train tail detection platform comprises an air compressor, an air cylinder, a proportional valve, an air outlet valve, a pressure sensor and a train tail detection platform host, wherein the train tail detection platform host is respectively connected with the proportional valve and the pressure sensor, and the air cylinder is respectively connected with the air compressor, the proportional valve and the air outlet valve;
the air compressor is used for inflating the air cylinder so as to enable the air pressure in the air cylinder to reach a first preset pressure;
the cylinder is used for storing gas filled in by the air compressor;
the air outlet valve is used for discharging gas in the cylinder;
the train tail detection table host is used for sequentially adjusting the proportional valves to each preset opening and closing degree, determining working parameters of the train tail detection table corresponding to each preset opening and closing degree, adjusting the proportional valves to target opening and closing degrees after the working parameters of the train tail detection table are determined, controlling the air outlet valves to be opened, and determining the exhaust flow of the train tail detection table, wherein the preset opening and closing degrees are used for controlling the target pressure when the gas in the cylinder flows to the train tail detection table host, and the target opening and closing degrees are the opening and closing degrees of the proportional valves when no gas flows to the train tail detection table host in the cylinder;
the pressure sensor is used for collecting air pressure in the air cylinder and detecting target pressure corresponding to each preset opening and closing degree;
wherein the operating parameters include: first working parameter, second working parameter, third working parameter, fourth working parameter and fifth working parameter, first working parameter does when target pressure predetermines the pressure for the second, the branch pressure precision of a platform host computer is examined to the row tail, second working parameter does when target pressure predetermines the pressure for the third, the branch pressure precision of a platform host computer is examined to the row tail, third working parameter does when target pressure predetermines the pressure for the fourth, the branch pressure precision of a platform host computer is examined to the row tail, fourth working parameter does when target pressure is the fifth predetermined pressure, the wind pressure of a platform is examined to the row tail.
7. The system of claim 6, further comprising: the air outlet is respectively connected with the proportional valve and the air outlet valve, and the proportional valve exhaust hole is connected with the proportional valve.
8. The system of claim 6, wherein the pressure sensor comprises: the air outlet is connected with the proportional valve, and the air outlet is connected with the proportional valve;
the first pressure sensor is used for determining the air pressure in the air cylinder;
and the second pressure sensor is used for detecting the target pressure corresponding to each preset opening and closing degree.
9. The system of claim 6, further comprising: the unloading valve is respectively connected with the air compressor and the air cylinder;
the unloading valve is used for unloading the outlet pressure of the air compressor before the air compressor charges the air cylinder.
10. The system of claim 6, further comprising: the air cylinder is connected with the air cylinder through a pressure reducing valve;
the pressure reducing valve is used for reducing the air pressure in the air cylinder.
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| CN202110369745.5A CN113092121A (en) | 2021-04-06 | 2021-04-06 | Gas path control method and system for train tail detection table |
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| CN202110369745.5A CN113092121A (en) | 2021-04-06 | 2021-04-06 | Gas path control method and system for train tail detection table |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102636360A (en) * | 2012-03-22 | 2012-08-15 | 北京世纪东方国铁科技股份有限公司 | Line end host detecting table |
| US8386122B1 (en) * | 2010-05-11 | 2013-02-26 | Norfolk Southern Corporation | Techniques for autonomous testing of head-of-train and/or end-of-train devices |
| CN203496929U (en) * | 2013-10-15 | 2014-03-26 | 南车株洲电力机车有限公司 | Device for preventing air exhausting of locomotive end blast main |
| CN104266850A (en) * | 2014-09-25 | 2015-01-07 | 中国铁道科学研究院 | Warehouse-out routine detecting system for passenger train tail devices |
| CN208043317U (en) * | 2018-04-09 | 2018-11-02 | 北京中铁列尾电子设备有限公司 | A kind of detection device of controlled train tail host |
| CN111088427A (en) * | 2018-10-23 | 2020-05-01 | 江西瑞林稀贵金属科技有限公司 | Fan control system and control method based on electronic waste and complex copper-based solid waste |
-
2021
- 2021-04-06 CN CN202110369745.5A patent/CN113092121A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8386122B1 (en) * | 2010-05-11 | 2013-02-26 | Norfolk Southern Corporation | Techniques for autonomous testing of head-of-train and/or end-of-train devices |
| CN102636360A (en) * | 2012-03-22 | 2012-08-15 | 北京世纪东方国铁科技股份有限公司 | Line end host detecting table |
| CN203496929U (en) * | 2013-10-15 | 2014-03-26 | 南车株洲电力机车有限公司 | Device for preventing air exhausting of locomotive end blast main |
| CN104266850A (en) * | 2014-09-25 | 2015-01-07 | 中国铁道科学研究院 | Warehouse-out routine detecting system for passenger train tail devices |
| CN208043317U (en) * | 2018-04-09 | 2018-11-02 | 北京中铁列尾电子设备有限公司 | A kind of detection device of controlled train tail host |
| CN111088427A (en) * | 2018-10-23 | 2020-05-01 | 江西瑞林稀贵金属科技有限公司 | Fan control system and control method based on electronic waste and complex copper-based solid waste |
Non-Patent Citations (1)
| Title |
|---|
| 范轶翔: "列尾装置自动检测***的设计与实现", 《中国优秀硕士学位论文全文数据库工程科技II辑》 * |
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Application publication date: 20210709 |