CN115235702B - A breathing valve testing device and a breathing valve testing method - Google Patents
A breathing valve testing device and a breathing valve testing method Download PDFInfo
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- CN115235702B CN115235702B CN202210817481.XA CN202210817481A CN115235702B CN 115235702 B CN115235702 B CN 115235702B CN 202210817481 A CN202210817481 A CN 202210817481A CN 115235702 B CN115235702 B CN 115235702B
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01M—TESTING STATIC OR DYNAMIC BALANCE OF MACHINES OR STRUCTURES; TESTING OF STRUCTURES OR APPARATUS, NOT OTHERWISE PROVIDED FOR
- G01M3/00—Investigating fluid-tightness of structures
- G01M3/02—Investigating fluid-tightness of structures by using fluid or vacuum
- G01M3/26—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors
- G01M3/28—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds
- G01M3/2876—Investigating fluid-tightness of structures by using fluid or vacuum by measuring rate of loss or gain of fluid, e.g. by pressure-responsive devices, by flow detectors for pipes, cables or tubes; for pipe joints or seals; for valves ; for welds for valves
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/296—Acoustic waves
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- Acoustics & Sound (AREA)
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- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- Details Of Valves (AREA)
- Testing Of Devices, Machine Parts, Or Other Structures Thereof (AREA)
Abstract
本发明涉及一种呼吸阀的测试装置及其测试方法，包括操作台，操作台为箱体结构，操作台的外侧设置有控制面板，内侧设置有气压系统；以及测试台，测试台为罐体结构，测试台的上端设置有转接法兰，侧身设置有测试进口和压力计接口，转接法兰的外周设置有夹具组件，测试进口与气压系统连接，压力计接口连接有一个U型压力计。还包括呼吸阀的测试装置进行测试，包括以下步骤：S1.测试装置组装；S2.呼吸阀安装；S3.呼吸阀测试；S4.测试装置拆分。该呼吸阀的测试装置仅需在控制面板上控制测试即可，操作上更为便捷和简单；利用U型压力计也可精确获取呼吸阀开启正/负压力数据，具有其成本低、实用性好的优势。
The present invention relates to a test device for a breathing valve and a test method thereof, comprising an operating table, which is a box structure, a control panel is arranged on the outside of the operating table, and an air pressure system is arranged on the inside; and a test table, which is a tank structure, a transfer flange is arranged on the upper end of the test table, a test inlet and a pressure gauge interface are arranged on the side, a fixture assembly is arranged on the periphery of the transfer flange, the test inlet is connected to the air pressure system, and a U-shaped pressure gauge is connected to the pressure gauge interface. It also includes a test device for a breathing valve for testing, including the following steps: S1. Assembling the test device; S2. Installing the breathing valve; S3. Testing the breathing valve; S4. Disassembling the test device. The test device for the breathing valve only needs to control the test on the control panel, which is more convenient and simple to operate; the positive/negative pressure data of the opening of the breathing valve can also be accurately obtained by using the U-shaped pressure gauge, which has the advantages of low cost and good practicality.
Description
Technical Field
The invention relates to the field of valve testing, in particular to a testing device and a testing method of a breather valve.
Background
The breather valve is a valve which can ensure that the space of the storage tank is isolated from the atmosphere in a certain pressure range and can be communicated with the atmosphere (breathed) when the pressure range is exceeded or falls below the pressure range, and the breather valve has the function of preventing the storage tank from being damaged due to overpressure or vacuum and reducing evaporation loss of the storage liquid.
The breather valve needs to be subjected to tightness test before delivery, and mainly has the tests of positive pressure/negative pressure opening pressure, tightness of the valve body and the like. At present, for small-sized breather valves, the existing testing device has higher cost and more complex operation in use, which results in low testing efficiency and difficult control of the test accuracy. Therefore, a testing device of the breather valve with low cost and convenient use is developed.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a testing device and a testing method of a breather valve.
In order to achieve the technical effects, the invention adopts the technical scheme that the testing device of the breather valve comprises:
the operation table is of a box structure, the outer side of the operation table is provided with a control panel, the inner side of the operation table is provided with a pneumatic system, and
The test bench, the test bench is jar body structure, and the upper end of test bench is provided with the flange that switches over, and the sideslip is provided with test inlet and manometer interface, switch over the periphery of flange and be provided with the anchor clamps subassembly, test inlet and pneumatic system connection, manometer interface connection has a U type manometer.
Further, two pressure gauges are arranged above the control panel, the control panel comprises a vacuum pump switch, a pressure pump switch, a negative pressure test switch, a positive pressure test switch and a pressure release switch, and the negative pressure test switch and the positive pressure test switch are respectively in one-to-one correspondence with the two pressure gauges.
Further, the air pressure system comprises an electric cabinet, a vacuum pump pipeline and a pressure pump pipeline, and the side wall of the operating platform is provided with a power interface for butt joint of the electric cabinet and a test outlet for butt joint of the vacuum pump pipeline and the pressure pump pipeline.
Further, the number of the clamp assemblies is multiple, the clamp assemblies are circumferentially and uniformly distributed on the periphery of the adapter flange, a plurality of supporting frames are circumferentially and uniformly distributed in the test bench, and each supporting frame is arranged below the corresponding clamp assembly.
Further, the fixture assembly comprises a sliding rail fixedly arranged at the upper end of the test bench, a sliding seat arranged on the sliding rail in a sliding manner and a quick clamp fixedly arranged above the sliding seat, the length direction of the sliding rail is perpendicular to and intersected with the axis direction of the adapter flange, and a baffle plate is arranged at one end, far away from the adapter flange, of the sliding rail.
Further, a sealing groove is formed in the upper end of the adapter flange, and a sealing ring is installed in the sealing groove.
Further, the inner wall of the adapter flange is provided with strip holes distributed along the axial direction, a deflector rod is inserted into the strip holes, the middle part of the deflector rod is rotationally connected with the strip holes through a rotating shaft, the bottom of the sealing groove is provided with a through hole communicated with the strip holes, a top block connected with the deflector rod is arranged in the through hole, and the top block is positioned below the bottom of the sealing groove under the action of no external force.
Further, the below of testboard is provided with the fuma wheel, and the lateral circumference equipartition of testboard has a plurality of landing leg subassemblies, the landing leg subassembly includes first regulation pole, second regulation pole and supporting legs, the one end of first regulation pole is articulated with the top of testboard, and the other end is articulated with the supporting legs, the one end of second regulation pole is articulated with the bottom of testboard, and the other end is articulated with the middle part of first regulation pole, the four corners of supporting legs all is provided with the screw hole, and the below of supporting legs is provided with the rubber pad.
Further, the first adjusting rod and the second adjusting rod are identical in structure, the first adjusting rod and the second adjusting rod both comprise an outer tube and an inner tube, one end of the outer tube is provided with a nut seat, a round nut is rotationally installed in the threaded seat, one end of the inner tube penetrates through the round nut and then extends into the outer tube, and the inner tube is in threaded fit with the round nut.
The invention also provides a test method of the breather valve, which adopts the test device of any one of the breather valves to test, and comprises the following steps:
S1, assembling a testing device, namely moving an operation table and a testing table to a proper position, and then connecting pneumatic pipelines to form a complete testing device;
S2, installing the breather valve, namely hoisting the breather valve to be tested above the test bench by using a crane, slowly placing the breather valve to be tested on the adapter flange after aligning the breather valve to the test bench, and then compacting and fixing the breather valve and the adapter flange by using a clamp assembly;
s3, testing the breather valve, namely selecting the air pressure system through a control panel, acquiring the required air pressure, then switching on the breather valve, observing the liquid level change of the U-shaped pressure gauge, recording corresponding data, and comparing the standard data of the breather valve to judge whether the breather valve is qualified or not;
S4, the testing device is detached, namely after the test is finished, the testing device is cleaned, the pneumatic pipeline is disconnected, and then the operation table and the testing table are moved to the original positions.
Further, in the step S1, after the test bench is moved to a proper position, the leg assembly of the test bench on its side may be put down for anti-tilting support.
Further, in the step S2, the nominal diameter of the breather valve is 50-500 mm, and the maximum pressure of the breather valve can be tested to be 0.4Mpa.
Further, in step S3, when the positive pressure of the breather valve to be tested is positive, the pressure release switch and the negative pressure test switch are turned off, the positive pressure test switch is turned on, and the pressure pump switch is pressed, so that the test bench starts to be inflated, meanwhile, the liquid level change of the U-shaped pressure gauge is observed until the breather valve is turned on, the pressure pump switch is loosened, the data corresponding to the liquid level of the U-shaped pressure gauge is recorded, and after the test is completed, the pressure release switch is turned on to release pressure.
Further, in step S3, when the breather valve to be tested is at the negative pressure opening pressure, the pressure release switch and the positive pressure test switch are turned off, the negative pressure test switch is turned on, and the vacuum pump switch is pressed, so that the test bench starts to exhaust air, meanwhile, the liquid level change of the U-shaped pressure gauge is observed until the breather valve is turned on, the vacuum pump switch is loosened, the data corresponding to the liquid level of the U-shaped pressure gauge is recorded, and after the test is completed, the pressure release switch is turned on to release pressure.
Compared with the prior art, the invention has the beneficial effects that:
1. The test operation and the valve installation are designed separately, so that the problem of complexity caused by integration can be avoided, the movement is convenient, and the layout is more flexible;
2. Only the control panel is needed to control the test, so that the operation is more convenient and simple;
3. the positive/negative pressure data of the opening of the breather valve can be accurately obtained by using the U-shaped pressure gauge, and the method has the advantages of low cost and good practicability;
4. the joint of the adapter flange and the breather valve has good tightness, the reliability of the test result is ensured, and the sealing ring at the sealing position is convenient to detach;
5. the test bench can be supported in an anti-tilting way, so that the stability of the test bench is improved, and the lifting and mounting of the breather valve are facilitated.
The foregoing description is only an overview of the present invention, and may be implemented in accordance with the teachings of the present specification, so that the foregoing and other objects, features, and advantages of the present invention may be more readily understood, and further detailed description of the present invention may be had by reference to the accompanying drawings and examples, it being apparent that the examples described are some, but not all, of the embodiments of the invention.
Drawings
FIG. 1 is a schematic diagram of a testing device of a breather valve according to the present invention;
FIG. 2 is a schematic view of the structure of the console according to the present invention;
FIG. 3 is a schematic view of the interior of the console according to the present invention;
FIG. 4 is a schematic diagram of a test bench according to the present invention;
FIG. 5 is an internal schematic view of a test stand according to the present invention;
FIG. 6 is a schematic view of the mounting locations of the clamp assemblies of the present invention;
FIG. 7 is a schematic view of a clamp assembly according to the present invention;
FIG. 8 is a cross-sectional view of an adapter flange according to the present invention;
FIG. 9 is a schematic view of the structure of the first adjusting lever or the second adjusting lever according to the present invention;
FIG. 10 is a schematic view of another embodiment of a clamp assembly of the present invention;
The reference numerals and corresponding names in the drawings are: 1, console, 2, control panel, 201, vacuum pump switch, 202, pressure pump switch, 203, negative pressure test switch, 204, positive pressure test switch, 205, pressure relief switch, 3, pneumatic system, 301, vacuum pump piping, 302, pressure pump piping, 303, electric cabinet, 4, test bench, 5, adapter flange, 5a, seal groove, 5b, strip hole, 5c, perforation, 6, test inlet, 7, pressure gauge interface, 8, clamp assembly, 801, slide rail, 802, slide, 803, quick clamp, 804, stop plate, 9.U, manometer, 10, pressure gauge, 11, power interface, 12, test outlet, 13, support frame, 14, sealing ring, 15, deflector rod, 16, pivot, 17, top block, 18, fu Ma Lun, 19, first adjustment rod, 20, second adjustment rod, 21, support foot, 21a, screw hole, 22, rubber pad, 23a, outer tube, 23b, inner tube, 23c, nut seat, 23d, round nut, 24, pulley, 25, guide wheel, 26, timing belt, 27, hand-held terminal, 28, ultrasonic level sensor.
Detailed Description
The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.
The invention discloses a testing device of a breather valve, which mainly comprises an operation table 1 and a testing table 4, wherein the design can effectively reduce the whole volume of the testing device, avoid other problems caused by integration (for example, if the operation table 1 and the testing table 4 are in an integrated structure, vibration caused by the operation of the operation table 1 can be transmitted to the testing table 4, so that the problems of deviation of the installation position of the breather valve, shaking of a valve body and the like are caused, the testing precision is influenced), and the two independent parts are more convenient to move after the volume is reduced, so that the testing device is suitable for flexible layout.
Referring to fig. 2-3, the operation console 1 is a box structure, and a power interface 11 of a butt joint electric cabinet 303 and a test outlet 12 of a butt joint vacuum pump pipeline 301 and a pressure pump pipeline 302 are arranged on the side wall of the operation console for realizing circuit and gas path connection and control;
The control panel 2 is arranged on the outer side of the operation table 1, the control panel 2 can be obliquely arranged on the top of the operation table 1, and an included angle formed by the control panel 2 and a horizontal plane is preferably about 60 degrees, so that a tester can conveniently use the control panel, and particularly, the control panel 2 comprises a vacuum pump switch 201, a pressure pump switch 202, a negative pressure test switch 203, a positive pressure test switch 204 and a pressure release switch 205, two pressure gauges 10 are further arranged above the control panel 2, and the two pressure gauges 10 are respectively in one-to-one correspondence with the negative pressure test switch 203 and the positive pressure test switch 204 and are used for displaying positive/negative pressure values to be output, so that the tester can conveniently master air pressure information in real time and adjust the air pressure information;
The inner side of the operation table 1 is provided with a pneumatic system 3, the pneumatic system 3 specifically comprises an electric control box 303, a vacuum pump pipeline 301 and a pressure pump pipeline 302, the electric control box 303 is connected with the control panel 2, and the operation of the vacuum pump pipeline 301 and the pressure pump pipeline 302 can be flexibly switched through the control of all keys. It should be noted that, the vacuum pump line 301 and the pressure pump line 302 in the pneumatic system 3 share one test outlet 12, and the two may be connected by installing a three-way valve (not shown) at the connection point with the test outlet 12.
Referring to fig. 4, the test bench 4 is of a tank structure, the upper end of the test bench 4 is provided with an adapter flange 5, the lower end of the adapter flange 5 is communicated with the inside of the test bench 4, the upper end is used for butt joint with a flange end of a breather valve, and the periphery of the adapter flange 5 is provided with a clamp assembly 8 for pressing the flange end of the breather valve on the adapter flange 5 to realize sealing connection;
The test bench 4 is provided with a test inlet 6 and a pressure gauge interface 7 on the side, the test inlet 6 can be connected with a test outlet 12 through a pneumatic pipeline in a butt joint mode, so that the test bench 4 is connected with the air pressure system 3, the pressure gauge interface 7 is used for being connected with a U-shaped pressure gauge 9, the U-shaped pressure gauge 9 can be arranged at a position, close to the pressure gauge interface 7, of the test bench 4 for convenient use and observation, related data can be obtained through observing liquid level change of the pressure gauge interface 7 during testing, and therefore quality of the breather valve is judged.
When the testing device is used, the operation table 1 and the test table 4 are moved to a proper position for assembly, then the breather valve is hoisted to the test table 4, the breather valve is pressed and fixed by the clamp assembly 8, a tester tests the performance of the breather valve by operating the control panel 2 and records relevant test data, and finally the test device is compared with standard data of the breather valve to judge whether the breather valve is qualified or not, and the later testing method of the breather valve is shown in detail.
Because the test operation is basically concentrated on the control panel 2, the test personnel can complete the test work by controlling the corresponding switch, the operation is more convenient and simple, and the data of the opening positive/negative pressure of the breather valve can be accurately obtained by utilizing the U-shaped pressure gauge 9, compared with expensive electronic detection equipment, the cost is low, and the practicability is good.
Besides adopting a manual reading test mode, the test device is also compatible with automatic electronic test, as shown in fig. 1 and 4, a handheld terminal 27 connected with an operation table 1 is provided, an ultrasonic liquid level sensor 28 is arranged on a U-shaped pressure gauge, the handheld terminal 27 adopts touch screen control, electronic data from the pressure gauge 10 can be collected, recording and checking are carried out, and finally, the pressure change curve under the conditions of positive and negative pressure opening and pressure maintaining of the breather valve is overcome.
Referring to fig. 4-5, in some embodiments, the number of the fixture assemblies 8 is plural, and the fixture assemblies are circumferentially distributed around the periphery of the adapter flange 5, and the plurality of support frames 13 are circumferentially distributed inside the test bench 4, where each support frame 13 is disposed below a corresponding fixture assembly 8.
The structure adopts the layout of a plurality of clamp assemblies 8 which are uniformly distributed in the circumferential direction, so that the flange end of the breather valve is uniformly stressed, the stability and the reliability of the butt joint with the adapter flange 5 are further improved, for example, three clamp assemblies 8 which are distributed at 120 degrees are preferred, and the breather valve can be tightly pressed on the adapter flange 5. In addition, considering that the test bench 4 is of a tank structure, the upper end face of the test bench is subjected to load deformation and damage of the breather valve and the clamp assembly 8, so that the support frames 13 can be installed in the test bench 4 to structurally strengthen the upper end face of the test bench 4, and the number and the positions of the support frames 13 correspond to those of the clamp assembly 8.
Referring to fig. 6-7, the fixture assembly 8 includes a slide rail 801 fixedly disposed at an upper end of the test stand 4, a slide seat 802 slidably disposed on the slide rail 801, and a quick clamp 803 fixedly disposed above the slide seat 802, wherein a length direction of the slide rail 801 is perpendicular to and intersects an axial direction of the adapter flange 5, and a stop plate 804 is disposed at an end of the slide rail 801 away from the adapter flange 5.
The clamp assembly 8 adopts the quick clamp 803 to rapidly compress the breather valve on the adapter flange 5, the operation is convenient and efficient, and the position of the quick clamp 803 away from the adapter flange 5 can be flexibly adjusted through the cooperation of the slide seat 802 and the sliding rail 801 so as to be suitable for fixing breather valves with different calibers, and the anti-drop function of the stop plate 804 can prevent the slide seat 802 from moving out of the sliding rail 801. The specific structures of the sliding rail 801 and the sliding seat 802 are not limited, and only the sliding rail 801 and the sliding seat 802 need to slide along the radial direction of the adapter flange 5 and prevent axial separation, for example, the sliding rail 801 is in an inverted T-shaped structure, the sliding seat 802 is in an i-shaped structure, and the bottom of the sliding seat 802 is embedded into the sliding rail 801 to move.
In addition to the above manual mode, the clamp assembly 8 may be an automatic mode, as shown in fig. 10, a pulley 24 may be installed at one end of each sliding rail 801 far from the adapter flange 5, a guide wheel 25 may be installed at one end of each sliding rail close to the adapter flange 5, the pulleys 24 and the guide wheels 25 may be connected in series by using a synchronous belt 26, and one side of the synchronous belt 26 may be connected with a sliding seat 802 on each sliding rail 801, so that when the synchronous belt 26 rotates, each sliding seat 802 may be synchronously moved in and out.
When in use, a motor (shown in the drawing) drives one of the pulleys 24, and the synchronous belt 26 can synchronously drive each sliding seat 802 to synchronously approach or depart from the adapter flange 5, so as to drive the quick clamp 803 to automatically move to a proper position. Compared with the manual clamp assembly 8, the automatic clamp assembly 8 is more convenient to operate, the advancing or retreating distance of the rapid clamp 803 is consistent everywhere, that is to say, the fixing points of the rapid clamp 803 are accurate and consistent, and the flange end stress of the breather valve is more uniform and reliable, and the high-precision test requirement can be better met.
Referring to fig. 6, in some embodiments, the upper end of the adapter flange 5 is provided with a sealing groove 5a, and a sealing ring 14 is installed in the sealing groove 5 a.
According to the structure, the sealing ring 14 is arranged on the adapter flange 5, the sealing ring 14 can be an O-shaped ring, so that a tiny gap between the flange end of the breather valve and the adapter flange 5 can be filled by the sealing ring 14, the leakage of air pressure at the butt joint position is avoided, and the accuracy of valve testing is further ensured.
Further, referring to fig. 8, the inner wall of the adapter flange 5 is provided with axially distributed bar holes 5b, a deflector rod 15 is inserted in the bar holes 5b, the middle part of the deflector rod 15 is rotationally connected with the bar holes 5b through a rotating shaft 16, the bottom of the seal groove 5a is provided with a through hole 5c communicated with the bar holes 5b, the through hole 5c is internally provided with a top block 17 connected with the deflector rod 15, and the top block 17 is positioned below the bottom of the seal groove 5a under the action of no external force.
Because the sealing ring 14 is inevitably worn in the long-term use process, the sealing failure at the joint of the breather valve and the adapter flange 5 affects the test, and the replacement of the sealing ring 14 generally needs to be provided with a corresponding tool, which is complicated in operation. Therefore, in this embodiment, the bar hole 5b and the through hole 5c are opened, the driving lever 15 capable of rotating up and down is installed in the bar hole 5b, the ejector block 17 with a slightly smaller size is installed in the through hole 5c, and the lever structure is formed after the driving lever 15 is combined with the ejector block 17, so that when the sealing ring 14 needs to be disassembled, the driving lever 15 can drive the ejector block 17 to rise, and the sealing ring 14 in the sealing groove 5a can be easily ejected out, so that the purpose of convenient replacement is achieved.
Referring to fig. 4, 5 and 9, in some embodiments, a fuma wheel 18 is provided below the test bench 4, a plurality of leg assemblies are uniformly distributed around the lateral body of the test bench 4, each leg assembly comprises a first adjusting rod 19, a second adjusting rod 20 and a supporting leg 21, one end of the first adjusting rod 19 is hinged to the top of the test bench 4, the other end of the first adjusting rod is hinged to the supporting leg 21, one end of the second adjusting rod 20 is hinged to the bottom of the test bench 4, the other end of the second adjusting rod is hinged to the middle of the first adjusting rod 19, screw holes 21a are formed in four corners of the supporting leg 21, and rubber pads 22 are arranged below the supporting leg 21.
The above structure is characterized in that the Fuma wheel 18 is arranged, the Fuma wheel 18 consists of a roller part and a foot pad part, and the roller part and the foot pad part can be mutually switched, so that the test bench 4 can be conveniently moved and temporarily fixed. In the process of installing the breather valve, the foot pad part of the fuma wheel 18 alone is difficult to effectively stabilize the test board 4, and the installation difficulty of the breather valve can be increased. Therefore, a plurality of leg assemblies can be optionally installed on the side of the test bench 4 for auxiliary matching, for example, three leg assemblies distributed at 120 degrees are preferable for anti-tilting support, and in specific use, the first adjusting rod 19 and the second adjusting rod 20 are unfolded for length adjustment to form a triangular structure, meanwhile, the supporting leg 21 is contacted with the ground to form anti-tilting support, and the rubber pad 22 below the supporting leg 21 can increase the friction force between the supporting leg 21 and the ground. In addition, if the test environment allows, screws can be arranged in the screw holes 21a, so that the supporting feet 21 are fixed on the ground, and the stability is further improved.
Preferably, the first adjusting rod 19 and the second adjusting rod 20 have the same structure, and each of the first adjusting rod 19 and the second adjusting rod comprises an outer tube 23a and an inner tube 23b, wherein a nut seat 23c is arranged at one end of the outer tube 23a, a round nut 23d is rotatably arranged in the threaded seat, one end of the inner tube 23b penetrates through the round nut 23d and then extends into the outer tube 23a, and the inner tube 23b is in threaded fit with the round nut 23 d.
The first adjusting rod 19 and the second adjusting rod 20 are manual adjusting rods, and when in use, the round nut 23d in the screw seat is rotated clockwise/anticlockwise, so that the inner tube 23b can be driven to slide and stretch relative to the outer tube 23a, and the adjustable adjusting rod has the advantages of simplicity in operation and high adjustable precision.
The invention also provides a test method of the breather valve, which is characterized by adopting the test device of any breather valve for testing, and comprising the following steps:
s1, assembling a testing device, namely moving an operation table 1 and a testing table 4 to a proper position and then connecting pneumatic pipelines to form a complete testing device;
S2, installing the breather valve, namely hoisting the breather valve to be tested above the test bench 4 by using a crane, slowly placing the breather valve on the adapter flange 5 after aligning the breather valve to be tested, and then compacting and fixing the breather valve and the adapter flange by using the clamp assembly 8;
S3, testing the breather valve, namely selecting the air pressure system 3 through the control panel 2, connecting the breather valve after acquiring the required air pressure, observing the liquid level change of the U-shaped pressure gauge 9, recording corresponding data, comparing the standard data of the breather valve to judge whether the breather valve is qualified or not, wherein,
When the positive pressure of the breather valve to be tested is started, the pressure release switch 205 and the negative pressure test switch 203 are closed, the positive pressure test switch 204 is opened, the pressure pump switch 202 is pressed, the test bench 4 starts to be inflated, the liquid level change of the U-shaped pressure gauge 9 is observed until the breather valve is started, the pressure pump switch 202 is loosened, data corresponding to the liquid level of the U-shaped pressure gauge 9 is recorded, and after the test is completed, the pressure release switch 205 is opened to release pressure;
When the negative pressure of the breather valve to be tested is started, the pressure release switch 205 and the positive pressure test switch 204 are closed, the negative pressure test switch 203 is opened, the vacuum pump switch 201 is pressed, the test bench 4 starts to exhaust air, the liquid level change of the U-shaped pressure gauge 9 is observed until the breather valve is started, the vacuum pump switch 201 is loosened, data corresponding to the liquid level of the U-shaped pressure gauge 9 is recorded, and after the test is completed, the pressure release switch 205 is opened to release pressure;
S4, the testing device is split, namely after the testing is finished, the testing device is cleaned, the pneumatic pipeline is disconnected, and then the operation table 1 and the testing table 4 are moved to the original positions.
In order to improve the stability of the test bench 4, the hanging installation of the breather valve is facilitated, and in the step S1, after the test bench 4 moves to a proper position, the supporting leg assembly of the test bench 4 on one' S side can be put down for anti-tilting support.
In order to meet the test requirement of the small-sized breather valve, in the step S2, the nominal diameter of the breather valve is 50-500 mm, and the maximum pressure of the breather valve can be tested to be 0.4Mpa.
The present invention is not limited to the above-described specific embodiments, and it is apparent to those skilled in the art from the above-described idea that various modifications can be made without inventive step and without departing from the scope of the present invention.
Claims (12)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817481.XA CN115235702B (en) | 2022-07-12 | 2022-07-12 | A breathing valve testing device and a breathing valve testing method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210817481.XA CN115235702B (en) | 2022-07-12 | 2022-07-12 | A breathing valve testing device and a breathing valve testing method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN115235702A CN115235702A (en) | 2022-10-25 |
| CN115235702B true CN115235702B (en) | 2025-03-14 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN202210817481.XA Active CN115235702B (en) | 2022-07-12 | 2022-07-12 | A breathing valve testing device and a breathing valve testing method |
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| CN213812863U (en) * | 2021-01-07 | 2021-07-27 | 苏州维赛克阀门检测技术有限公司 | Large-diameter breather valve test bench |
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| KR100808062B1 (en) * | 2007-10-23 | 2008-02-28 | 에스씨에스 주식회사 | Breather valve inspection device |
| CN106224631B (en) * | 2016-07-19 | 2018-06-15 | 中国人民解放军总后勤部油料研究所 | A kind of breather valve on-line measuring device and method |
| CN210136067U (en) * | 2019-07-16 | 2020-03-10 | 苏州维赛克阀门检测技术有限公司 | Breather valve test bench |
| CN213301667U (en) * | 2020-11-02 | 2021-05-28 | 普瑞泰格(南京)安全设备有限公司 | Breather valve moving test bench |
| CN216410653U (en) * | 2021-11-01 | 2022-04-29 | 苏州越能科技有限公司 | Breather valve detection device |
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| CN213812863U (en) * | 2021-01-07 | 2021-07-27 | 苏州维赛克阀门检测技术有限公司 | Large-diameter breather valve test bench |
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