CN217505201U

CN217505201U - Air release valve test equipment of railway locomotive

Info

Publication number: CN217505201U
Application number: CN202221677758.5U
Authority: CN
Inventors: 朱博; 张兴宇; 郭海锋; 赵瑞; 刘军; 樊越; 顾玉衡
Original assignee: Sujiatun Locomotive Section of China Railway Shenyang Group Co Ltd
Current assignee: Sujiatun Locomotive Section of China Railway Shenyang Group Co Ltd
Priority date: 2022-07-01
Filing date: 2022-07-01
Publication date: 2022-09-27
Anticipated expiration: 2032-07-01

Abstract

The utility model relates to a bleed valve test technical field provides a bleed valve test equipment of railway locomotive. The blow-off valve test equipment of the railway locomotive comprises a shell, an air reservoir is arranged inside the shell, an input end of the air reservoir is connected with an air inlet pipeline, an output end of the air reservoir is connected with one end of an air supply pipe, the other end of the air supply pipe is connected with one end of an exhaust pipeline and one end of a test pipeline respectively, a compensation pipeline is connected between the exhaust pipeline and the test pipeline, a pressure maintaining electromagnetic valve is arranged on the test pipeline, an air valve connector is connected with the other end of the test pipeline, a first pressure sensor is arranged between the air valve connector and the compensation pipeline, a second pressure sensor is arranged on the air reservoir, a control panel is installed on the shell, the control panel is connected with the pressure maintaining electromagnetic valve respectively, the first pressure sensor and the second pressure sensor are connected. The utility model provides a because do not have dedicated test equipment, lead to the bleed valve testing process loaded down with trivial details, the technical problem who expends time and manpower.

Description

Air release valve test equipment of railway locomotive

Technical Field

The utility model relates to a bleed valve test field especially relates to a bleed valve test equipment of railway locomotive.

Background

The CCBII brake is an important component of a railway locomotive and the blow-off valve is a core component to ensure the safety of the CCBII brake. The air release valve is used when the railway locomotive is braked, exhausted and stopped in emergency under various working conditions. The bleed valve is an important implementation module for emergency braking when the railroad locomotive is operating reliably. Whether the air release valve has a fault or not directly influences whether the emergency braking implemented by a railway locomotive braking system is safe and effective or not.

Along with the increase of the running kilometers and the service life of the railway locomotive, the failure rate of the air release valve is obviously increased, the failure phenomena are mostly failure of air exhaust function, overlong air exhaust time and the like, and the air release valve needs to be overhauled in time due to overhigh maintenance cost and overlong overhaul time.

At present, the air release valve after the lower vehicle is overhauled can only be loaded for testing after the air release valve is overhauled because no special test equipment is provided. Not only the test operation is complicated but also can only test whether the blow-off valve can work, can not test the action value of blow-off valve and the stability of blow-off valve, in addition in case the blow-off valve has a problem, just need the secondary to dismantle in order to get off the adjustment, resources such as a large amount of time, manpower are wasted.

Therefore, the testing device for the bleed valve of the railway locomotive is provided.

SUMMERY OF THE UTILITY MODEL

The utility model provides a bleed valve test equipment of railway locomotive aims at solving because there is not dedicated test equipment, and it is loaded down with trivial details to lead to bleed valve testing process, the technical problem who expends time and manpower.

The utility model is realized like this, the utility model provides a bleed valve test equipment of railway locomotive. The air release valve test equipment of the railway locomotive comprises a shell, an air reservoir is arranged inside the shell, an input end of the air reservoir is connected with an air inlet pipeline, an output end of the air reservoir is connected with one end of an air supply pipe, the other end of the air supply pipe is connected with one end of an exhaust pipeline and one end of a test pipeline respectively, the exhaust pipeline is connected with a compensation pipeline between the test pipelines, a pressure maintaining electromagnetic valve is arranged on the test pipeline, an air valve connector is connected with the other end of the test pipeline, a first pressure sensor is arranged between the air valve connector and the compensation pipeline, a second pressure sensor is arranged on the air reservoir, a control panel is installed on the shell, and the control panel is connected with the pressure maintaining electromagnetic valve, the first pressure sensor and the second pressure sensor respectively.

Optionally, the air inlet pipeline includes: the air inlet pipe, voltage regulator and air inlet solenoid valve, the voltage regulator with air inlet solenoid valve install respectively in on the air inlet pipe way, the one end of air inlet pipe with the input of reservoir is connected, air inlet solenoid valve with control panel connects.

Optionally, the air bleeding valve testing device of the railway locomotive further includes a first stop valve and an air source connector, the air source connector is mounted at the other end of the air inlet pipe, and the first stop valve is mounted on the air inlet pipe and located between the air source connector and the air inlet electromagnetic valve.

Optionally, the exhaust duct includes: the exhaust electromagnetic valve and the exhaust limiting plug are respectively installed on the exhaust pipe, and the exhaust electromagnetic valve is connected with the control panel.

Optionally, the compensation pipeline comprises an air duct and a one-way valve, the one-way valve is installed on the air duct, and two ends of the air duct are connected with the exhaust pipeline and the test pipeline respectively.

Optionally, a second stop valve is further arranged on the test pipeline.

Optionally, the shell is provided with two access doors, a mounting frame is arranged inside the shell, the air cylinder is installed on the mounting frame, and the shell is further provided with a patch board.

Optionally, a pressure gauge is installed on the air cylinder, and a dial plate of the pressure gauge is arranged on the shell.

Optionally, the air supply pipe, the exhaust pipeline and the test pipeline are connected through a three-way valve.

Optionally, the control panel includes a controller, and the controller is a programmable logic controller.

The utility model discloses the beneficial effect who reaches, the utility model provides a blow-off valve test equipment of railway locomotive. The air release valve testing equipment of the railway locomotive comprises a shell, an air cylinder is arranged inside the shell, an input end of the air cylinder is connected with an air inlet pipeline, an output end of the air cylinder is connected with one end of an air supply pipe, the other end of the air supply pipe is respectively connected with one end of an exhaust pipeline and one end of a test pipeline, a compensation pipeline is connected between the exhaust pipeline and the test pipeline, and the compensation pipeline is used for carrying out one-way air conveying on the test pipeline. The pressure maintaining electromagnetic valve is arranged on the test pipeline, the other end of the test pipeline is connected with the air valve connector, and a first pressure sensor is arranged between the air valve connector and the compensation pipeline. And a second pressure sensor is arranged on the air cylinder. The shell is provided with a control panel, and the control panel is respectively connected with the pressure maintaining electromagnetic valve, the first pressure sensor and the second pressure sensor.

The utility model discloses the pressure difference value has been utilized and has been tested. The pressure maintaining electromagnetic valve can be opened by utilizing the control panel, and air can flow back to the inside of the air cylinder from the air release valve to be tested. And evaluating the operation condition of the tested air release valve when the air pressure difference reaches a specific value by observing the values of the first pressure sensor and the second pressure sensor. And further, the testing of the vent valve is realized, and the problems that the detection process of the vent valve is complicated, and the time and labor are consumed due to the absence of special testing equipment are solved.

Drawings

Fig. 1 is a schematic rear view sectional structure view of a testing device of a bleed valve of a railway locomotive.

Fig. 2 is a perspective view of a first visual angle of a bleed valve testing device of a railway locomotive.

Fig. 3 is a perspective view of a second perspective view of the bleed valve test apparatus of the railway locomotive provided by the present invention.

The reference numerals are as follows

The air supply system comprises a shell 1, an air cylinder 2, an air inlet pipeline 3, an air inlet pipe 31, an air inlet pipe 32, a pressure regulator 33, an air inlet electromagnetic valve 34, a first stop valve 35, an air source connector 4, a compensation pipeline 41, an air guide pipe 42, a one-way valve 5, an air supply pipe 6, a three-way valve 7, an air exhaust pipeline 8, a test pipeline 81, a pressure maintaining electromagnetic valve 82, an air valve connector 83, a first pressure sensor 84, a second stop valve 9, a second pressure sensor 10, a control panel 11, an installation frame 11, an access door 12, a patch board 13, a pressure gauge 14 and a dial 141.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more clearly understood, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

As shown in fig. 1-3, the present invention provides a bleed valve test apparatus for a railroad locomotive. The air release valve testing equipment of the railway locomotive comprises a shell 1, an air cylinder 2 is arranged inside the shell 1, an input end of the air cylinder 2 is connected with an air inlet pipeline 3, an output end of the air cylinder 2 is connected with one end of an air supply pipe 5, the other end of the air supply pipe 5 is connected with one end of an exhaust pipeline 7 and one end of a test pipeline 8 respectively, the exhaust pipeline 7 is connected with a compensation pipeline 4 between the test pipelines 8, and the compensation pipeline 4 is used for carrying out one-way air conveying on the test pipeline 8. The test pipeline 8 is provided with a pressure maintaining electromagnetic valve 81, the other end of the test pipeline 8 is connected with a wind valve connector 82, and a first pressure sensor 83 is arranged between the wind valve connector 82 and the compensation pipeline 4. And a second pressure sensor 9 is arranged on the air cylinder 2. A control panel 10 is installed on the housing 1, and the control panel 10 is respectively connected with the pressure maintaining solenoid valve 81, the first pressure sensor 83 and the second pressure sensor 9. The control panel 10 is also connected with the air inlet pipeline 3 and the exhaust pipeline 7, and can directly control the opening and closing of the air inlet pipeline 3 and the exhaust pipeline 7. During actual use, the bleed valve to be tested is connected with the air valve connector 82, the exhaust pipeline 7 is closed, and the pressure maintaining electromagnetic valve 82 is closed by the control panel 10, so that the purpose of cutting off connection between the air cylinder 2 and the test pipeline 8 is achieved. Subsequently, the air inlet pipe 3 is connected to an air source, and outside air is introduced into the interior of the reservoir 2 through the air inlet pipe 3, and the air is introduced into the exhaust pipe 7 through the reservoir 2. Because test pipeline 8 is in the closed condition, the inside air of reservoir 2 can not directly get into test pipeline 8, and the air enters into test pipeline 8 by compensation pipeline 4, when the inside air pressure that gets into reservoir 2 reached a definite value, utilizes control panel 10 to control air inlet pipeline 3 and closes, then utilizes control panel 10 to open exhaust pipe 7, and the inside air of reservoir 2 can be transmitted to exhaust pipe 7 through blast pipe 5, discharges through exhaust pipe 7 again. Due to the evacuation of air, the internal gas pressure of the test line 8 is now greater than the pressure of the evacuation line 7, so that air cannot enter the test line 8 again from the compensation line 4. After a certain amount of air is discharged, the exhaust pipeline 7 is closed, the internal gas pressure of the test pipeline 8 is larger than the gas pressure in the air cylinder 2, a certain difference value is formed between the internal pressure of the tested air release valve and the test pipeline 8 and the internal pressure of the air cylinder 2, then the test pipeline 8 is opened by utilizing the control board 10, and air can flow back to the inside of the air cylinder 2 from the air release valve to be tested. In the process, the operation condition of the tested air release valve when the air pressure difference reaches a specific value is evaluated by observing the values of the first pressure sensor 83 and the second pressure sensor 9, so that the air release valve is tested.

As an example, the intake duct 3 comprises: an air inlet pipe 31, a pressure regulator 32 and an air inlet solenoid valve 33. The pressure regulator 32 with the solenoid valve 33 that admits air install respectively in on the air inlet pipe way 3, the one end of air-supply line 31 with the input of reservoir 2 is connected, the solenoid valve 33 that admits air with control panel 10 connects. In actual use, the air inlet solenoid valve 33 is opened to connect the air inlet pipe 31 with the air source. Air enters from the air inlet pipe 31, and the pressure regulator 32 is used for limiting the amount of air entering the air inlet pipe 31 and realizing the function of controlling the internal pressure of the air inlet pipe 31. Because the air inlet pipe 31 is communicated with the air reservoir 2, the air with the pressure intensity inside the air reservoir 2 is indirectly realized.

As an example, the air release valve testing apparatus for a railway locomotive further includes a first shut-off valve 34 and an air supply connector 35, the air supply connector 35 is installed at the other end of the air inlet pipe 31, and the first shut-off valve 34 is installed on the air inlet pipe 31 and located between the air supply connector 35 and the air inlet solenoid valve 33. The intake solenoid valve 33 is connected to the control panel 10, and the opening and closing of the intake solenoid valve 33 can be controlled directly by the control panel 10. When the air inlet solenoid valve 33 is opened, the outside air enters the reservoir 2 through the air inlet pipe 31, and the air source connector 25 is used for connecting an air source. The first stop valve 34 is a mechanical valve body, and the first stop valve 34 is closed to complete the cutting of the air inlet pipe 31, so that the device can be conveniently repaired and maintained subsequently.

As an example, the exhaust line 7 comprises: the exhaust air device comprises an exhaust air pipe 71, an exhaust electromagnetic valve 72 and an exhaust limiting block 73, wherein the exhaust electromagnetic valve 72 and the exhaust limiting block 73 are respectively arranged on the exhaust air pipe 71, and the exhaust electromagnetic valve 72 is connected with the control panel 10. The control panel 10 can directly control the opening and closing of the exhaust solenoid valve 72. The exhaust solenoid valve 72 is opened, and the air is sent to the outside through the exhaust pipe 71 and exhausted through the exhaust limiting block 73.

As an example, the compensation pipeline 4 includes an air duct 41 and a one-way valve 42, the one-way valve 42 is installed on the air duct 41, two ends of the air duct 41 are respectively connected with the exhaust pipeline 7 and the test pipeline 8, and the one-way valve 42 is set to implement an air one-way compensation function of the air duct 41. The air is guaranteed to be conveyed to the test pipeline 8 from the exhaust pipeline 7, and air is compensated for the test pipeline 8.

As an example, a second stop valve 84 is further disposed on the test pipeline 8, the second stop valve 84 is a mechanical valve body, the second stop valve 84 is closed, and the test pipeline 8 is cut off, so that the device can be repaired and maintained later.

As an example, two access doors 12 are arranged on the housing 1, a mounting frame 11 is arranged inside the housing 1, the air cylinder 2 is mounted on the mounting frame 11, and a patch board 13 is further arranged on the housing 1. The patch board 13 is set for connecting with an electric appliance, and a notebook computer (not shown in the figure) or a printer (not shown in the figure) can be connected to the patch board 13 in actual use. Connect the printer on wiring board 13, can directly print the inspection data of this equipment, print out paper data to in watch and record, the practicality is strong.

As an example, a pressure gauge 14 is installed on the reservoir 2, and a dial 141 of the pressure gauge 14 is disposed on the case 1. The pressure gauge 14 is a mechanical pressure gauge. The setting of the pressure gauge 14 is used to determine whether the value of the second pressure sensor 9 is accurate. In a normal state, the display value of the pressure gauge 14 and the value of the second pressure sensor 9 should be consistent, and the pressure gauge 14 plays a role in monitoring the second pressure sensor 9.

As an example, the blast pipe 5, the exhaust duct 7 and the test duct 8 are connected by a three-way valve 6. The installation is convenient, and the reliability is high.

As an example, the control panel 10 includes a Controller, and the Controller 3 is a Programmable Logic Controller (PLC). PLC reliability is high, and the practicality is strong.

Principle of operation

The air release valve to be tested is connected with the air valve connector 82, the exhaust pipeline 7 is closed, and meanwhile the pressure maintaining electromagnetic valve 82 is closed through the control panel 10, so that the purpose of cutting off connection between the air cylinder 2 and the test pipeline 8 is achieved. Subsequently, the air supply line 3 is connected to an air source, and outside air is introduced into the interior of the reservoir 2 through the air supply line 3. The inside atmospheric pressure of second pressure sensor 9 real-time supervision reservoir 2 changes, and the air gets into exhaust pipe 7 through reservoir 2, because test pipeline 8 is in the closed condition, the inside air of reservoir 2 can not directly get into test pipeline 8, and the air gets into to test pipeline 8 by compensation pipeline 4. When the pressure of the air entering the reservoir 2 reaches a certain value, the control panel 10 controls the air inlet solenoid valve 33 to close, and then the control panel 10 opens the air outlet solenoid valve 72, so that the air inside the reservoir 2 is transmitted to the air outlet pipe 7 through the air supply pipe 5 and then is exhausted through the air outlet pipe 7. Because of the air exhaust, the internal gas pressure of the test pipeline 8 is greater than the pressure of the exhaust pipeline 7, and the specific pressure value is detected by the first pressure sensor 83 and transmitted to the control panel 10 for display, so that the air does not enter the test pipeline 8 again through the compensation pipeline 4, and after a certain amount of air is exhausted, the exhaust pipeline 7 is closed. At this time, the internal gas pressure of the tested air release valve and the test pipeline 8 is greater than the gas pressure in the air cylinder 2. At this time, a certain difference is formed between the internal pressure of the tested bleed valve and the test pipeline 8 and the internal pressure of the air cylinder 2, then the pressure maintaining electromagnetic valve 81 is opened by using the control board 10, and air can flow back to the inside of the air cylinder 2 from the tested bleed valve. In the process, the operation condition of the tested air release valve when the air pressure difference reaches a specific value is evaluated by observing the values of the first pressure sensor 83 and the second pressure sensor 9, so that the air release valve is tested.

The above description is only exemplary of the present invention and should not be taken as limiting the scope of the present invention, as any modifications, equivalents, improvements and the like made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims

1. The air release valve testing equipment of the railway locomotive is characterized by comprising a shell (1), an air reservoir (2) is arranged inside the shell (1), an air inlet pipeline (3) is connected to the input end of the air reservoir (2), the output end of the air reservoir (2) is connected with one end of an air supply pipe (5), the other end of the air supply pipe (5) is connected with one end of an exhaust pipeline (7) and one end of a test pipeline (8) respectively, a compensation pipeline (4) is connected between the exhaust pipeline (7) and the test pipeline (8), a pressure maintaining electromagnetic valve (81) is arranged on the test pipeline (8), an air valve connector (82) is connected to the other end of the test pipeline (8), a first pressure sensor (83) is arranged between the air valve connector (82) and the compensation pipeline (4), and a second pressure sensor (9) is arranged on the air reservoir (2), the pressure maintaining device is characterized in that a control panel (10) is installed on the shell (1), and the control panel (10) is connected with the pressure maintaining electromagnetic valve (81), the first pressure sensor (83) and the second pressure sensor (9) respectively.

2. A bleed valve test device for railway locomotives according to claim 1, characterized in that said intake duct (3) comprises: air-supply line (31), voltage regulator (32) and air intake solenoid valve (33), voltage regulator (32) with air intake solenoid valve (33) install respectively in on air inlet pipe way (3), the one end of air-supply line (31) with the input of reservoir (2) is connected, air intake solenoid valve (33) with control panel (10) are connected.

3. The bleed valve test apparatus for railroad locomotive according to claim 2, further comprising a first shut-off valve (34) and an air source connector (35), wherein the air source connector (35) is installed at the other end of the air inlet duct (31), and the first shut-off valve (34) is installed on the air inlet duct (31) between the air source connector (35) and the air inlet solenoid valve (33).

4. A bleed valve test device for railway locomotives according to claim 2, characterized in that said exhaust line (7) comprises: exhaust pipe (71), exhaust solenoid valve (72) and the restriction of airing exhaust block (73), exhaust solenoid valve (72) with the restriction of airing exhaust block (73) install respectively in exhaust pipe (71) are last, just exhaust solenoid valve (72) with control panel (10) are connected.

5. The bleed valve test apparatus for a railway locomotive according to claim 1, wherein the compensation pipe (4) comprises an air duct (41) and a check valve (42), the check valve (42) is installed on the air duct (41), and both ends of the air duct (41) are respectively connected with the exhaust pipe (7) and the test pipe (8).

6. A bleed valve test apparatus for a railway locomotive according to claim 1, wherein a second shut-off valve (84) is further provided on the test line (8).

7. The test equipment for the bleed valve of the railway locomotive according to claim 1, wherein two access doors (12) are provided on the housing (1), a mounting frame (11) is provided inside the housing (1), the air cylinder (2) is mounted on the mounting frame (11), and a patch board (13) is further provided on the housing (1).

8. A bleed valve test apparatus for a railway locomotive according to claim 1, wherein a pressure gauge (14) is mounted on the reservoir (2), and a dial (141) of the pressure gauge (14) is provided on the housing (1).

9. A bleed valve test device for railway locomotives according to claim 1, characterized in that said blast pipe (5), said exhaust line (7) and said test line (8) are connected by a three-way valve (6).

10. The railroad locomotive bleed valve test apparatus of claim 1, wherein the control panel (10) includes a controller, the controller being a programmable logic controller.