CN217587513U

CN217587513U - Testing device for electromagnetic valve of flow control valve

Info

Publication number: CN217587513U
Application number: CN202121157115.3U
Authority: CN
Inventors: 赫建强; 曹颖章; 史世杰
Original assignee: Beijing Andawell Mechanical Maintenance Co ltd
Current assignee: Beijing Andawell Mechanical Maintenance Co ltd
Priority date: 2021-05-27
Filing date: 2021-05-27
Publication date: 2022-10-14
Anticipated expiration: 2031-05-27

Abstract

The utility model relates to the field of aircraft engine air conditioning systems, and discloses a testing device for a flow control valve solenoid valve, which comprises a testing device body, wherein the testing device body comprises a first valve seat passage, a second valve seat passage and two valve seats, the two valve seats are communicated through the first valve seat passage, a first valve body is arranged in the first valve seat, a second valve body is arranged in the second valve seat, the first valve body is elastically connected with a spring, and the spring is connected with the first valve seat; the second valve body is connected with an armature; the lower part of the first valve seat is provided with an S port, the middle part of the first valve seat is provided with a G port, the first valve seat passage is provided with a C port, the middle part of the second valve seat is provided with a P port, and the second valve seat passage is provided with an R port; the armature is connected with the electromagnetic valve to be tested through electromagnetic induction. The utility model discloses a testing arrangement can test the solenoid valve of flow control valve, the utility model provides a problem of the unable test of solenoid valve leakage for the reliability of part can improve.

Description

Testing device for electromagnetic valve of flow control valve

Technical Field

The utility model relates to an aircraft engine air conditioning system technical field specifically relates to a testing arrangement for flow control valve solenoid valve.

Background

At present, bleed air provided by an A320 series engine of a civil aircraft provides an air source for the aircraft and is also used for a cabin pressurization and air conditioning system. The flow control valve is an electrically controlled pneumatic valve and has two adjustment modes: a main mode and a standby mode. In the main mode: the mode selection electromagnetic valve is closed and is adjusted through the torque motor; standby mode: the mode selection electromagnetic valve is powered off and is adjusted through the pressure regulator, so that the stability of the downstream flow is ensured. It can be seen that the normal function of the mode selection solenoid valve plays a crucial role in the flow control valve. In order to ensure that the valve works normally and the electromagnetic valve functions normally, the leakage test of the electromagnetic valve is required. When the leakage test of the electromagnetic valve is carried out, no tool capable of meeting the test requirement exists in the prior art, the leakage test requirement of the electromagnetic valve cannot be met, and the reliability of parts cannot be improved.

SUMMERY OF THE UTILITY MODEL

The utility model provides a testing arrangement for flow control valve solenoid valve to solve prior art's above-mentioned problem.

The utility model provides a testing arrangement for flow control valve solenoid valve, including the testing arrangement body, the testing arrangement body includes first valve seat route, second valve seat route and two disk seats, two disk seats pass through first valve seat route intercommunication, two disk seats include first valve seat and second valve seat, be equipped with first valve body in the first valve seat, be equipped with the second valve body in the second valve seat, the upper end of first valve body is connected with the lower extreme of second valve body through first connecting rod, the lower extreme of first valve body and one end elastic connection of spring, the other end of spring is connected with first valve seat; the upper end of the second valve body is connected with an armature through a second connecting rod; the first connecting rod is positioned in the first valve seat passage, and the second connecting rod is positioned in the second valve seat passage; the lower part of the first valve seat is provided with an S port, the middle part of the first valve seat is provided with a G port, the first valve seat passage is provided with a C port, the middle part of the second valve seat is provided with a P port, and the second valve seat passage is provided with an R port; the armature is connected with the electromagnetic valve to be tested through electromagnetic induction.

Further, the first valve seat comprises a first valve seat upper port and a first valve seat lower port, and the first valve body can be clamped at the lower end of the first valve seat upper port and the upper end of the first valve seat lower port; the second valve seat comprises a second valve seat upper port and a second valve seat lower port, and the second valve body can be clamped at the lower end of the second valve seat upper port and the upper end of the second valve seat lower port.

Furthermore, the electromagnetic valve to be tested is connected with a power supply through a cut-off switch.

Furthermore, the testing device body is connected with air source equipment through a testing pipeline, and the testing pipeline is provided with a control valve, an inner leakage testing flowmeter and a flow testing flowmeter.

Furthermore, the test pipeline is also provided with a pressure gauge and a thermometer.

Furthermore, the testing device body is provided with a plurality of sealing rings.

The utility model has the advantages that: the utility model discloses a testing arrangement can test the solenoid valve of flow control valve, the utility model provides a problem of the unable test of solenoid valve leakage for the reliability of part can improve.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments are briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a testing apparatus for a flow control valve electromagnetic valve according to a first embodiment of the present invention.

Fig. 2 is a schematic diagram of a position state of the electromagnetic valve during energization according to the first embodiment.

Fig. 3 is a schematic diagram illustrating a position state of the solenoid valve when not powered according to the first embodiment.

Fig. 4 is a schematic diagram of a connection structure of a testing apparatus during a P-C test of a port provided in this embodiment.

Fig. 5 is a schematic diagram of a connection structure of a testing apparatus during a port P-R test according to a first embodiment of the present invention.

1. The testing device comprises a testing device body, 2, R ports, 3, P ports, 4, G ports, 5, C ports, 6, S ports, 7, electromagnetic valves to be tested, 8, a disconnecting switch, 9, a power supply, 10 and a sealing ring.

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. It should be understood that the detailed description and specific examples, while indicating the invention, are given by way of illustration only. It is noted that the terms "comprises" and "comprising," and any variations thereof, in the description and claims of the present invention and the above-described drawings are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of elements is not necessarily limited to those elements, but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.

In a first embodiment, a testing device for an electromagnetic valve of a flow control valve is shown in fig. 1, and includes a testing device body 1, where the testing device body 1 includes a first valve seat passage, a second valve seat passage and two valve seats, the two valve seats are communicated through the first valve seat passage, the two valve seats include a first valve seat and a second valve seat, a first valve body is arranged in the first valve seat, a second valve body is arranged in the second valve seat, the upper end of the first valve body is connected with the lower end of the second valve body through a first connecting rod, the lower end of the first valve body is elastically connected with one end of a spring, and the other end of the spring is connected with the first valve seat; the upper end of the second valve body is connected with an armature through a second connecting rod; the first connecting rod is positioned in the first valve seat passage, and the second connecting rod is positioned in the second valve seat passage; the lower part of the first valve seat is provided with an S port 6, the middle part of the first valve seat is provided with a G port 4, the first valve seat passage is provided with a C port 5, the middle part of the second valve seat is provided with a P port 3, and the second valve seat passage is provided with an R port 2; the armature is connected with the solenoid valve 7 to be tested through electromagnetic induction.

The first valve seat comprises a first valve seat upper port and a first valve seat lower port, and the first valve body can be clamped at the lower end of the first valve seat upper port and the upper end of the first valve seat lower port; the second valve seat comprises a second valve seat upper port and a second valve seat lower port, and the second valve body can be clamped at the lower end of the second valve seat upper port and the upper end of the second valve seat lower port. The solenoid valve to be tested is connected with a power supply 9 through a cut-off switch 8. The testing device body is connected with air source equipment through a testing pipeline, and the testing pipeline is provided with a control valve, an internal leakage testing flowmeter, a flow testing flowmeter, a pressure gauge and a thermometer. The testing device body is provided with a plurality of sealing rings 10.

The positions of the solenoid valves when the solenoid valves are electrified and not electrified are respectively shown in fig. 2 and fig. 3, when the solenoid valves are electrified, the solenoid valves are switched to the standby mode, the solenoid valves generate electromagnetic force to lift the armatures from the valve seats, the channels between the P ports and the C ports are opened, and the channels between the S ports and the G ports are opened; the channel between the P port and the R port is closed; the channel between the S port and the C port is closed. When the power is not switched on, the main mode is switched, the electromagnetic force disappears, the armature presses the valve body on the valve seat (namely, the first valve body presses the first valve seat, the second valve body presses the second valve seat), and the channel between the P port and the R port is opened; and closing a channel between the S port and the G port, and closing a channel between the P port and the C port.

In this embodiment, the purpose of the leak test is to check the tightness of the gas path and ensure that the tightness of the solenoid valve is good. The purpose of the flow test is to check whether the air passage is unblocked or not and ensure that the electromagnetic valve meets the requirements. The solenoid valve is installed on the testing device body, the solenoid valve is electrified to provide 28VDC and 0.4mA current, the solenoid valve is operated for 5 times, and pressure 14.5psi is provided to the solenoid valve at the temperature of 10-50 ℃.

Utilize the utility model discloses the theory of operation who carries out flow control valve solenoid valve as follows:

in the actual working process, the electromagnetic valve to be tested is installed on the testing device through a plurality of screws, the electromagnetic valve to be tested is connected to the corresponding port of the testing device through the testing hose, other ports are connected with a plug or a flowmeter required by the test, and then the pipeline is connected to a pneumatic test bench (namely, air source equipment) to complete the leakage test of the electromagnetic valve. As shown in fig. 4, a port P-C (i.e., a channel between the port P and the port C) test is performed, the R port 2 and the G port 4 are respectively connected to a plug 11, and the P port 3 is connected to an air source device through a test pipeline.

Energizing an electromagnetic valve: the port P-C was tested for leaks, requiring < 0.00026ppm of leakage.

And (3) powering off the electromagnetic valve: the P-C flow of the port is tested, and the required flow is more than 0.066ppm.

As shown in FIG. 5, a P-R test of the port is performed, the G port 4 is connected with a plug 11, and the P port 3 is connected with air supply equipment through a test pipeline.

Energizing an electromagnetic valve: the port P-R was tested for leaks, requiring < 0.00026ppm of leakage.

And (3) powering off the electromagnetic valve: the P-R flow of the port is tested, and the required flow is more than 0.066ppm.

Through adopting the utility model discloses an above-mentioned technical scheme has obtained following profitable effect:

the utility model discloses a testing arrangement can test the solenoid valve of flow control valve, the utility model provides a problem of the unable test of solenoid valve leakage for the reliability of part can improve.

The above is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, without departing from the principle of the present invention, a plurality of improvements and decorations can be made, and these improvements and decorations should also be viewed as the protection scope of the present invention.

Claims

1. A testing device for a flow control valve electromagnetic valve is characterized by comprising a testing device body, wherein the testing device body comprises a first valve seat passage, a second valve seat passage and two valve seats, the two valve seats are communicated through the first valve seat passage, the two valve seats comprise a first valve seat and a second valve seat, a first valve body is arranged in the first valve seat, a second valve body is arranged in the second valve seat, the upper end of the first valve body is connected with the lower end of the second valve body through a first connecting rod, the lower end of the first valve body is elastically connected with one end of a spring, and the other end of the spring is connected with the first valve seat; the upper end of the second valve body is connected with an armature through a second connecting rod; the first connecting rod is located within the first seat passage and the second connecting rod is located within the second seat passage; the lower part of the first valve seat is provided with an S port, the middle part of the first valve seat is provided with a G port, the first valve seat passage is provided with a C port, the middle part of the second valve seat is provided with a P port, and the second valve seat passage is provided with an R port; the armature is connected with the electromagnetic valve to be tested through electromagnetic induction.

2. The testing device for the flow control shutter solenoid valve as recited in claim 1, wherein the first valve seat comprises a first valve seat upper port and a first valve seat lower port, the first valve body being capable of being clamped at a lower end of the first valve seat upper port and an upper end of the first valve seat lower port; the second valve seat comprises a second valve seat upper port and a second valve seat lower port, and the second valve body can be clamped at the lower end of the second valve seat upper port and the upper end of the second valve seat lower port.

3. The testing device for a flow control shutter solenoid valve as claimed in claim 2, characterized in that said solenoid valve to be tested is connected to a power supply through a cut-off switch.

4. The testing device for the electromagnetic valve of the flow control valve according to claim 1 or 3, characterized in that the testing device body is connected with air source equipment through a testing pipeline, and the testing pipeline is provided with a control valve, an internal leakage testing flowmeter and a flow testing flowmeter.

5. A test rig for a flow control shutter solenoid valve as claimed in claim 4 wherein the test line is further provided with a pressure gauge and a temperature gauge.

6. The testing device for a flow control shutter solenoid valve as claimed in claim 1 wherein the testing device body is provided with a plurality of sealing rings.