CN211927178U

CN211927178U - Gas drive urea nozzle air tightness test platform

Info

Publication number: CN211927178U
Application number: CN201922017950.6U
Authority: CN
Inventors: 陈昕; 李禹泽
Original assignee: Changchun Faw Sihuan Transmission Auto Parts Co ltd
Current assignee: Changchun Faw Sihuan Transmission Auto Parts Co ltd
Priority date: 2019-11-21
Filing date: 2019-11-21
Publication date: 2020-11-13
Anticipated expiration: 2029-11-21

Abstract

The utility model relates to the technical field of auxiliary devices for air-tight tests, in particular to an air-driven urea nozzle air-tight test platform which can improve the measurement accuracy, facilitate observation, facilitate cleaning and drying treatment of the viscosity of a tested workpiece and realize automatic and quantitative leakage detection; including workstation, electric controller, airtight clamping device, standard sample spare, spray test control box, water tank and pressure boost jar, electric controller and standard sample spare are all installed in workstation top half regional, airtight clamping device installs at the workstation top, spray test control box and install on the workstation lateral wall, mainly used detects the work of whether having the leakage of urea nozzle.

Description

Gas drive urea nozzle air tightness test platform

Technical Field

The utility model relates to a gas tightness test auxiliary device's technical field especially relates to a gas drive urea nozzle gas tightness test platform.

Background

The air-tight test is a kind of air-tight test which is carried out aiming at the pressure volume and the pipeline and prevents the produced product from having local defects, such as 'sand holes' and cracks, etc., and the air-tight test is carried out by taking gas as a medium and entering the tested product through pressurization. For some pressure vessels and pipelines for storing special gases such as hazardous gases or gases with high purity, gas tightness tests are required. The method is an experimental method which is different from air pressure tests and is necessary for protecting personal safety and the like.

When detecting the pipeline gas tightness, the detection mode is generally different according to the pressure grade of pressure-bearing container, casing, pipeline, valve at present, selects different gas tightness test pressure to test, and the inspection mode generally divide into: pressure drop method inspection (observing pressure gauge), bubbling detection (most intuitive), digital display pressure control and computer control.

Common methods for detecting air tightness include bubble method, smearing method, chemical gas tracing and leakage detecting method, pressure variation method, flow method, ultrasonic method and the like. The traditional leakage detection method mainly adopts a bubble method and a smearing method. The bubble method is to immerse the workpiece in water, charge compressed air, and collect the bubbles leaked from the workpiece for a certain period of time to measure the leakage amount. The smearing method is to smear liquid which is easy to generate bubbles, such as soapy water, on the surface of a workpiece filled with certain air pressure, and observe the condition of generating bubbles so as to detect the size of leakage amount.

The bubble method and the smearing method are simple to operate, the leakage position and the leakage condition can be directly observed, but the leakage position and the leakage positions of the workpiece are not known in advance, so that full bubbles are difficult to collect, and the measurement accuracy is influenced; secondly, for parts with large volume, heavy weight and complex outer surfaces, bubbles are attached to the bottom and folds of the parts and are difficult to observe; after the test, the workpiece needs to be cleaned and dried, and automatic and quantitative leakage detection cannot be realized.

SUMMERY OF THE UTILITY MODEL

In order to solve the technical problem, the utility model provides a can improve and measure the accuracy to convenient observation can conveniently clean drying process to the work piece viscidity after the test is accomplished simultaneously, can realize the gas drive urea nozzle gas tightness test platform of automatic, quantitative leak hunting.

The utility model discloses a gas drive urea nozzle gas tightness test platform, including workstation, electric controller, airtight clamping device, standard sample spare, spray test control box, water tank and pressure boost jar, electric controller and standard sample spare are all installed at workstation top later half region, airtight clamping device installs at the workstation top, it installs on the workstation lateral wall to spray the test control box.

The utility model discloses a gas drive urea nozzle gas tightness test platform, airtight clamping device includes water tank and observation window, be provided with in the water tank and deposit the water cavity to be provided with the outlet in water tank bottom intercommunication, the water tank bottom is provided with multiunit support post, is provided with the viewing aperture before the water tank on the lateral wall, the viewing aperture with deposit the water cavity and communicate with each other, the observation window is installed in viewing aperture department to realize the sealed of observation window department through the multiunit layering, first region of water tank is provided with the support frame, be provided with elevating system on the support frame to be provided with toper sealing mechanism in the elevating system bottom, second half region of support frame is provided with detection mechanism to be provided with the support at the support frame front end, be provided with pneumatic assembly power plug mechanism on the support, last water route check valve and the one-way valve of being.

Compared with the prior art, the beneficial effects of the utility model are that: 1. the device of the utility model can realize the air tightness collective detection of the parts shell and the assembly; 2. the device of the utility model can realize the collective detection of the air tightness of the parts and the circuit spraying; 3. the fixed angle of the fixed point of the part can be conveniently adjusted by adopting the device of the utility model, and standardization is carried out; 4. Energy conservation and environmental protection; 5. lean production.

Drawings

FIG. 1 is a schematic structural view of the air-tight clamping device of the present invention;

FIG. 2 is a left side view of the structure of the air-tight clamping device of the present invention;

in the drawings, the reference numbers: 301. a water tank; 302. an observation window; 303. a water outlet; 304. layering; 305. a support frame; 306. a lifting mechanism; 307. a conical sealing mechanism; 308. a detection mechanism; 309. a support; 310. a power plug mechanism of the pneumatic assembly; 311. a waterway one-way valve; 312. A gas path one-way valve.

Detailed Description

The following detailed description of the embodiments of the present invention is provided with reference to the accompanying drawings and examples. The following examples are intended to illustrate the invention, but are not intended to limit the scope of the invention.

As shown in fig. 1-2, the utility model discloses a gas drive urea nozzle gas tightness test platform, including workstation, electric controller, airtight clamping device, standard sample spare, spray experimental control box, water tank 301 and pressure boost jar, electric controller and standard sample spare are all installed in workstation top latter half region, airtight clamping device installs at the workstation top, it installs on the workstation lateral wall to spray experimental control box.

The air-drive urea nozzle airtightness test platform comprises a water tank 301 and an observation window 302, wherein a water storage cavity is arranged in the water tank 301, a water outlet 303 is communicated with the bottom of the water tank 301, a plurality of groups of supporting upright posts are arranged at the bottom of the water tank 301, an observation port is arranged on the front side wall of the water tank 301 and communicated with the water storage cavity, an observation window 302 is arranged at the observation port, and the sealing of the observation window 302 is realized by a plurality of groups of pressure strips 304, a support frame 305 is arranged on the upper half area of the water tank 301, a lifting mechanism 306 is arranged on the support frame 305, a conical sealing mechanism 307 is arranged at the bottom end of the lifting mechanism 306, a detection mechanism 308 is arranged at the rear half area of the supporting frame 305, a support 309 is arranged at the front end of the support frame 305, a pneumatic assembly power supply plugging mechanism 310 is arranged on the support 309, the detection mechanism 308 is provided with a waterway check valve 311 and a waterway check valve 312.

During detection, 1, the detected shell is placed on a test bed, a button of the detection shell is pressed, the air tightness of the shell starts to be detected, the air path part of the assembly is cut off under the control of a program, and whether a detection result is qualified or not is observed during detection. If the detection result is not qualified, pressing a stop button, restoring the cylinder to the initial state, and continuously detecting the replaceable other workpieces. (the air pressure of the test case joint 1161212-19W was 0.3 MPa.).

2. And (3) placing the mounted urea nozzle assembly on a test bed, pressing a button of the detection assembly, starting to detect the air tightness of the assembly, observing whether the detection result is qualified or not during detection, and if the detection result is unqualified, pressing a stop button, enabling the air cylinder to recover to the initial state, and continuously detecting by replacing other workpieces. (pressure of the test assembly joint 1161215-19W was 1.2MPa, and pressure of the test housing joint 1161212-19W was 0.3 MPa.)

3. After the air tightness detection result is qualified, the air pressure of the detection assembly joint and the shell joint is cut off, the air pressure of the air cylinder is kept, the workpiece is kept in a clamping state, the water spraying detection button is pressed, the pneumatic assembly power supply plugging mechanism is started, the air cylinder pushes the plug to be connected with the socket at the moment, the water spraying experiment is started, the water spraying condition can be watched through the observation window, after the water spraying experiment is finished, the air pressure of the detection assembly is started again to blow out water in the measuring head and then stops, the detection is finished, and the air cylinder is restored to the.

1. The device of the utility model can realize the air tightness collective detection of the parts shell and the assembly; 2. the device of the utility model can realize the collective detection of the air tightness of the parts and the circuit spraying; 3. the fixed angle of the fixed point of the part can be conveniently adjusted by adopting the device of the utility model, and standardization is carried out; 4. energy conservation and environmental protection; 5. lean production.

The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, a plurality of modifications and variations can be made without departing from the technical principle of the present invention, and these modifications and variations should also be regarded as the protection scope of the present invention.

Claims

1. The utility model provides a gas drive urea nozzle gas tightness test platform, its characterized in that includes workstation, electric controller, airtight clamping device, standard sample spare, sprays experimental control box, water tank (301) and pressure boost jar, electric controller and standard sample spare are all installed in workstation top back half region, airtight clamping device installs at the workstation top, it installs on the workstation lateral wall to spray experimental control box.

2. The gas-driven urea nozzle airtightness test platform according to claim 1, further comprising a water tank (301) and an observation window (302), wherein a water storage cavity is arranged in the water tank (301), a water outlet (303) is arranged at the bottom of the water tank (301) in a communicating manner, a plurality of sets of support columns are arranged at the bottom of the water tank (301), an observation port is arranged on the front side wall of the water tank (301), the observation port is communicated with the water storage cavity, the observation window (302) is installed at the observation port, and the observation window (302) is sealed by a plurality of sets of pressing strips (304), a support frame (305) is arranged in the upper half area of the water tank (301), a lifting mechanism (306) is arranged on the support frame (305), a tapered sealing mechanism (307) is arranged at the bottom end of the lifting mechanism (306), a detection mechanism (308) is arranged in the lower half area of the support frame (305), and a support seat, the support (309) is provided with a pneumatic assembly power plug mechanism (310), and the detection mechanism (308) is provided with a water way one-way valve (311) and a gas way one-way valve (312).