CN111397816B - A PE valve air tightness test device - Google Patents
A PE valve air tightness test device Download PDFInfo
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- CN111397816B CN111397816B CN202010372758.3A CN202010372758A CN111397816B CN 111397816 B CN111397816 B CN 111397816B CN 202010372758 A CN202010372758 A CN 202010372758A CN 111397816 B CN111397816 B CN 111397816B
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- valve
- air tightness
- clamping base
- inlet joint
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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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- General Physics & Mathematics (AREA)
- Examining Or Testing Airtightness (AREA)
Abstract
本发明公开了一种PE阀门气密性试验装置，包括：底板；支撑杆，所述支撑杆设有四根；试验机构，所述试验机构设有四组，所述试验机构包括压紧底座和入口接头，所述压紧底座位于入口接头正下方，所述压紧底座内部固定安装有检测管，所述检测管延伸至压紧底座外部的表面固定安装有压力传感器和压力显示表，所述入口接头内部固定安装有进气管；本发明结构简单，操作方便快捷，可根据不同规格待测PE阀门的气密性要求调节充气和保压时间，可同时进行多个PE阀门的气密性检测，判断结果直观，不要求操作人员具有高的操作水平，检测效率高，对待测PE阀门无任何附加影响试验结果的外力，极大地提高工作效率和减轻劳动强度。
The invention discloses an air tightness testing device for PE valves, comprising: a base plate; support rods, four of which are provided; a testing mechanism, four of which include a clamping base and an inlet joint, the clamping base being located directly below the inlet joint, a detection tube being fixedly installed inside the clamping base, a pressure sensor and a pressure display gauge being fixedly installed on the surface of the detection tube extending to the outside of the clamping base, and an air inlet pipe being fixedly installed inside the inlet joint; the invention has a simple structure and is convenient and quick to operate, and can adjust the inflation and pressure holding time according to the air tightness requirements of PE valves to be tested of different specifications, can perform air tightness tests on multiple PE valves at the same time, and the judgment result is intuitive, does not require operators to have a high level of operation, has high detection efficiency, and has no additional external force that affects the test result on the PE valve to be tested, thereby greatly improving work efficiency and reducing labor intensity.
Description
Technical Field
The invention relates to the technical field of PE valves, in particular to a PE valve air tightness test device.
Background
The valve is a pipeline accessory for opening and closing a pipeline, controlling flow direction, adjusting and controlling parameters (temperature, pressure and flow rate) of a conveying medium, and can be classified into a shutoff valve, a check valve, a regulating valve and the like according to functions thereof. The valve is a control component in a fluid conveying system, has the functions of stopping, adjusting, guiding, preventing backflow, stabilizing pressure, splitting flow or overflow pressure relief and the like, and is used for the fluid control system, and the variety and the specification of the valve range from the simplest stopping valve to various valves used in a very complex automatic control system are quite various. The valve can be used for controlling the flow of various types of fluids such as air, water, steam, various corrosive media, slurry, oil products, liquid metal, radioactive media and the like. The valves are also classified into cast iron valves, cast steel valves, stainless steel valves (201, 304, 316, etc.), chrome molybdenum steel valves, chrome molybdenum vanadium steel valves, dual-phase steel valves, plastic valves, nonstandard custom valves, PE valves, etc. according to materials, in general, in the production of PE valves, an air tightness test is required for PE valves after the production is completed.
However, in the prior art, a manual method is often adopted for detecting the air tightness of the PE valve, most of the PE valve is placed in water, and then air is introduced, so that the problems of low working efficiency, large error and the like exist, and the PE valve is easy to damage.
Disclosure of Invention
The invention aims to provide a PE valve air tightness test device for solving the problems in the background technology.
In order to achieve the purpose, the invention provides the following technical scheme that the PE valve air tightness test device comprises:
A bottom plate;
The support rods are four;
The test mechanism comprises a compression base and an inlet joint, wherein the compression base is positioned right below the inlet joint, a detection tube is fixedly arranged in the compression base, a pressure sensor and a pressure display meter are fixedly arranged on the surface of the detection tube extending to the outside of the compression base, and an air inlet pipe is fixedly arranged in the inlet joint;
a top plate;
a clamping mechanism;
A PLC controller;
The test device comprises a bottom plate, a top plate, a test mechanism, a PLC (programmable logic controller) and a plurality of support rods, wherein the four support rods are fixedly connected to the periphery of the top end of the bottom plate, the top plate is fixedly connected to the top ends of the four support rods, the test mechanism is fixedly arranged on the inner side of each support rod, and the PLC is fixedly arranged on the surface of one support rod;
wherein, the PLC is electrically connected with the pressure sensor.
Preferably, the method further comprises:
A partition plate;
wherein, baffle fixed mounting is in bracing piece inboard surface.
Preferably, the clamping mechanism comprises a motor, the power output end of the motor penetrates through the top plate and is fixedly connected with a threaded screw rod, a sliding nut is slidably arranged outside the threaded screw rod, and a moving plate is fixedly arranged on the surface of the outer wall of the sliding nut;
the motor is fixedly arranged on the surface of the top end of the top plate through bolts, the bottom end of the threaded screw rod is rotationally connected with the partition plate through a bearing seat, and the PLC is electrically connected with the motor.
Preferably, the method further comprises:
The buffer mechanism comprises a sleeve and a buffer rod, the buffer rod is slidably mounted in the sleeve, a spring is fixedly mounted at the bottom end of the inside of the sleeve, the bottom end of the buffer rod extends into the sleeve and is fixedly connected with a piston, and the piston is slidably connected with the sleeve;
Wherein, fixed connection between sleeve bottom and the entry joint top, fixed connection between buffer rod top and the movable plate bottom.
Preferably, the test mechanism further comprises an air pump, and the air delivery end of the air pump is fixedly connected with an air delivery branch pipe;
the air pump is fixedly arranged on the top end surface of the top plate, and the PLC is electrically connected with the air pump.
Preferably, the method further comprises:
the alarm is fixedly arranged on the surface of one supporting rod;
wherein, the alarm is connected with the PLC electrically.
Preferably, the first sealing ring is embedded on the upper end surface of the pressing base, and the second sealing ring is embedded on the bottom end surface of the inlet joint.
Preferably, the top end of the detection tube extends to the upper end surface of the compaction base, the bottom end of the detection tube penetrates through the compaction base and is fixedly connected to the surface of the bottom plate, the bottom end of the air inlet tube extends to the bottom end surface of the inlet joint, and the top end of the air inlet tube penetrates through the inlet joint and is fixedly connected with the air transmission branch pipe.
Preferably, the gas transmission branch pipe is specifically an elastic corrugated pipe.
Preferably, the end surfaces of the pressing base and the inlet joint are both in conical structures.
Compared with the prior art, the invention has the beneficial effects that:
1. According to the PE valve, the PE valve is vertically arranged on the compression base through the arranged test mechanism, so that the lower end opening of the PE valve is inserted into the compression base, then the inlet connector moves downwards to the upper end opening of the PE valve, communication among the inlet connector, the PE valve and the compression base can be achieved, then air is input into the gas transmission branch pipe through the air pump, then enters the PE valve through the air inlet pipe, and then enters the detection pipe through the PE valve, meanwhile, the pressure value in the detection pipe can be set in the PLC in advance, when the pressure of the gas in the detection pipe detected by the pressure sensor reaches the preset value, the air pump can be closed, the gas transmission is stopped, damage to the PE valve caused by excessive gas transmission can be avoided, when the pressure in the detection pipe falls to a certain range, the system judges that the PE valve to be detected leaks gas, the air tightness is unqualified, the alarm can give out alarm sound, meanwhile, the gas tightness detection result of the PE valve can be more intuitively known through the pressure display meter, and the air tightness of the PE valve can be effectively detected.
2. The PE valve air tightness detection device is simple in structure, convenient and quick to operate, capable of adjusting air inflation time and pressure maintaining time according to the air tightness requirements of PE valves to be detected with different specifications, capable of simultaneously detecting the air tightness of a plurality of PE valves, visual in judgment result, free of high operation level of operators, high in detection efficiency, free of any external force affecting the test result of the PE valves to be detected, and capable of greatly improving working efficiency and reducing labor intensity.
Drawings
FIG. 1 is a schematic diagram of the overall structure of the present invention;
FIG. 2 is a schematic view of the internal structure of the present invention;
FIG. 3 is a top view of the present invention;
FIG. 4 is a schematic diagram of a moving plate structure according to the present invention;
FIG. 5 is a schematic view of a compression base structure according to the present invention;
FIG. 6 is a schematic view of the inlet fitting structure of the present invention;
fig. 7 is a schematic structural view of a buffering mechanism of the present invention.
In the drawing, 1000-bottom plate, 2000-supporting rod, 2100-alarm, 3000-test mechanism, 3100-air pump, 3110-gas transmission branch pipe, 3200-compression base, 3300-inlet connector, 3310-buffer mechanism, 3311-sleeve, 3312-buffer rod, 3313-piston, 3314-spring, 3400-detecting tube, 3500-pressure display meter, 3600-sealing ring, 3700-second sealing ring, 3800-air inlet tube, 3900-pressure sensor, 4000-top plate, 5000-clamping mechanism, 5100-motor, 5200-moving plate, 5300-threaded screw rod, 5400-sliding nut, 6000-partition plate and 7000-PLC controller.
Detailed Description
The following description of the embodiments of the present invention will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present invention, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Example 1:
Referring to fig. 1-6, the invention provides a technical scheme that a PE valve air tightness test device comprises a bottom plate 1000, a support rod 2000, a test mechanism 3000, a top plate 4000, a clamping mechanism 5000 and a PLC controller 7000.
Wherein, bottom plate 1000 and top plate 4000 are all circular structures.
Further, the bottom plate 1000 and the top plate 4000 may be made of metal materials or alloy materials such as iron, steel, stainless steel, etc.
Wherein, four support rods 2000 are provided.
Further, the support bar 2000 may be made of a metal material or an alloy material such as iron, steel, stainless steel, etc.
Four of the support rods 2000 are fixedly connected to the periphery of the top end of the bottom plate 1000, the top plate 4000 is fixedly connected to the top ends of the four support rods 2000, the test mechanism 3000 is fixedly mounted on the inner side of each support rod 2000, and the PLC controller 7000 is fixedly mounted on the surface of one of the support rods 2000.
Wherein, the PLC 7000 is electrically connected with the pressure sensor 3900.
The test mechanism 3000 is provided with four groups, the test mechanism 3000 includes a compression base 3200 and an inlet connector 3300, the compression base 3200 is located under the inlet connector 3300, a fixed connection is provided between the compression base 3200 and a partition 6000, a detection tube 3400 is fixedly installed inside the compression base 3200, a pressure sensor 3900 and a pressure display meter 3500 are fixedly installed on the surface of the detection tube 3400 extending to the outside of the compression base 3200, and an air inlet pipe 3800 is fixedly installed inside the inlet connector 3300.
Further, pressure sensor 3900 is model MIK-P300.
Further, the PE valve is vertically placed on the compression base 3200, so that the lower end opening of the PE valve is inserted into the compression base 3200, then the inlet connector 3300 moves down to the upper end opening of the PE valve, communication between the inlet connector 3300, the PE valve and the compression base 3200 can be achieved, then the air pump 3100 works to input air into the gas transmission branch pipe 3110, then the air enters the PE valve through the air inlet pipe 3800, then passes through the PE valve to enter the detection pipe 3400, meanwhile, the pressure value in the detection pipe can be set in advance in the PLC controller 7000, when the gas pressure in the detection pipe detected by the pressure sensor 3900 reaches a preset value, the air pump 3100 can be closed, gas delivery is stopped, damage caused by excessive gas delivery to the PE valve can be avoided, when the pressure in the detection pipe 3400 falls to a certain range, the system judges that the PE valve to be detected is unqualified, the alarm 2100 can send out alarm sound, meanwhile, the gas pressure in the detection pipe 3400 can be visually detected through the pressure display table 3500, and the gas tightness detection result of the PE valve can be effectively detected.
Further, compression mount 3200 and inlet fitting 3300 are on the same vertical axis, enabling clamping of the PE valve.
Wherein, the utility model also comprises a baffle 6000.
Wherein the partition 6000 is fixedly installed on the inner side surface of the support bar 2000.
The clamping mechanism 5000 comprises a motor 5100, a power output end of the motor 5100 penetrates through the top plate 4000 and is fixedly connected with a threaded screw 5300, a sliding nut 5400 is slidably installed outside the threaded screw 5300, and a moving plate 5200 is fixedly installed on the outer wall surface of the sliding nut 5400.
The motor 5100 is fixedly mounted on the top surface of the top plate 4000 through bolts, the bottom end of the threaded screw 5300 is rotationally connected with the partition 6000 through a bearing seat, and the PLC 7000 is electrically connected with the motor 5100.
Further, when the motor 5100 works, the threaded screw 5300 can be driven to rotate, the sliding nut 5400 can be driven to move on the threaded screw 5300, when the motor 5100 drives the threaded screw 5300 to rotate clockwise, the sliding nut 5400 can move downwards, the inlet connector 3300 can be driven to move downwards through the moving plate 5200, clamping of a PE valve can be completed, when the motor 5100 drives the threaded screw 5300 to rotate anticlockwise, the sliding nut 5400 can move upwards, the inlet connector 3300 can be driven to move upwards through the moving plate 5200, the PE valve can be loosened to exhaust, the operation is convenient and fast, the defect of traditional manual fixing is overcome, and damage to the PE valve can be avoided.
The test mechanism 3000 further comprises an air pump 3100, and an air delivery end of the air pump 3100 is fixedly connected with an air delivery branch pipe 3110.
Further, the air pump 3100 works to realize the delivery of the PE valve gas.
The air pump 3100 is fixedly mounted on the top surface of the top plate 4000, and the PLC controller 7000 is electrically connected with the air pump 3100.
The device also comprises an alarm 2100, wherein the alarm 2100 is fixedly arranged on the surface of one of the support rods 2000.
Further, when the pressure in the detecting tube 3400 drops to a certain range, the system judges that the PE valve to be detected leaks air, the air tightness is unqualified, and the alarm 2100 can give out an alarm sound, so that people can be informed of the detection result at the first time.
Wherein, the alarm 2100 is electrically connected with the PLC controller 7000.
Wherein, compress tightly the upper end surface of base 3200 and inlay and have No. one sealing washer 3600, inlet joint 3300 bottom surface inlays and has No. two sealing washer 3700.
Further, sealing washer 3600 and No. two sealing washer 3700 can guarantee the leakproofness of being connected between compress tightly base 3200 and entry joint 3300 and the PE valve, avoids appearing the junction and has the circumstances of gas leakage, has guaranteed the accuracy nature of gas tightness test.
Wherein, the top end of the detecting tube 3400 extends to the upper end surface of the compression base 3200, the bottom end of the detecting tube 3400 penetrates through the compression base 3200 and is fixedly connected to the surface of the bottom plate 1000, the bottom end of the air inlet tube 3800 extends to the bottom end surface of the inlet connector 3300, and the top end of the air inlet tube 3800 penetrates through the inlet connector 3300 and is fixedly connected with the air delivery branch pipe 3110, so that the air inlet tube 3800 and the air delivery branch pipe 3110 are mutually communicated.
Further, communication between the detection pipe 3400, the PE valve and the intake pipe 3800 can be achieved.
Wherein, the gas delivery branch pipe 3110 is specifically an elastic bellows.
Further, when the moving plate 5200 moves, the inlet connector 3300 is also driven to move, and the gas manifold 3110 does not affect the normal movement of the inlet connector 3300 due to the elasticity.
Wherein, the end surfaces of the compressing base 3200 and the inlet joint 3300 are both in conical structures.
Further, the upper end of the compression base 3200 is an interface with a guiding conical surface, and the lower end of the inlet connector 3300 is an interface with a guiding conical surface, so that the ports of the compression base 3200 and the inlet connector 3300 are inserted into the interfaces at two ends of the PE valve, and the PE valve is clamped and fixed.
According to the embodiment, the device is simple in structure and convenient and quick to operate, the inflation time and the pressure maintaining time can be adjusted according to the air tightness requirements of PE valves to be tested with different specifications, the air tightness detection of a plurality of PE valves can be simultaneously carried out, the judgment result is visual, operators are not required to have high operation level, the detection efficiency is high, no external force affecting the test result is added to the PE valves to be tested, the working efficiency is greatly improved, and the labor intensity is relieved.
Example 2:
Referring to fig. 1,2 and 7, the invention provides a technical scheme that a PE valve air tightness test device comprises a bottom plate 1000, a support rod 2000, a test mechanism 3000, a top plate 4000, a clamping mechanism 5000 and a PLC controller 7000.
Wherein, bottom plate 1000 and top plate 4000 are all circular structures.
Further, the bottom plate 1000 and the top plate 4000 may be made of metal materials or alloy materials such as iron, steel, stainless steel, etc.
Wherein, four support rods 2000 are provided.
Further, the support bar 2000 may be made of a metal material or an alloy material such as iron, steel, stainless steel, etc.
Four of the support rods 2000 are fixedly connected to the periphery of the top end of the bottom plate 1000, the top plate 4000 is fixedly connected to the top ends of the four support rods 2000, the test mechanism 3000 is fixedly mounted on the inner side of each support rod 2000, and the PLC controller 7000 is fixedly mounted on the surface of one of the support rods 2000.
Wherein, the PLC 7000 is electrically connected with the pressure sensor 3900.
Wherein, a buffer mechanism 3310 is also included.
The buffering mechanism 3310 includes a sleeve 3311 and a buffering rod 3312, the buffering rod 3312 is slidably mounted inside the sleeve 3311, a spring 3314 is fixedly mounted at the bottom end inside the sleeve 3311, the bottom end of the buffering rod 3312 extends into the sleeve 3311 and is fixedly connected with a piston 3313, and the piston 3313 is slidably connected with the sleeve 3311.
Further, when the moving plate 5200 drives the inlet connector 3300 to move downwards to the upper end interface of the PE valve, the moving plate 5200 acts on the buffer rod 3312, and when the inlet connector 3300 contacts the PE valve to stop moving, the buffer rod 3312 drives the piston 3313 to act on the spring 3314 to compress the spring 3314, and as the spring 3314 has very good elasticity, the damage to the PE valve caused by the lowering of the inlet connector 3300 can be reduced, so that the inlet connector 3300 and the PE valve are in elastic contact, and the damage to the PE valve is avoided.
Wherein, the bottom end of the sleeve 3311 is fixedly connected with the top end of the inlet joint 3300, and the top end of the buffer rod 3312 is fixedly connected with the bottom end of the moving plate 5200.
Further, the inlet joint 3300 is fixed to the bottom of the moving plate 5200 by a cushion mechanism 3310.
In combination with the above embodiments, since the spring 3314 has very good elasticity, damage to the PE valve caused by lowering of the inlet connector 3300 can be reduced, so that the inlet connector 3300 and the PE valve are in elastic contact, and damage to the PE valve is avoided.
In the several embodiments provided by the present invention, it should be understood that the disclosed apparatus may be implemented in other ways. The welding or screwing or winding connection between the devices shown or discussed can be assisted by means of equipment, such as welding guns, screws with wrenches, etc., the device components being made of a wide variety of materials, such as aluminium alloys, steel and copper, etc., formed by casting or by means of mechanical punching, etc.
It is noted that relational terms such as first and second, and the like are used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Moreover, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus.
The foregoing description is only of embodiments of the present invention, and is not intended to limit the scope of the invention, and all equivalent structures or equivalent processes using the descriptions and the drawings of the present invention or directly or indirectly applied to other related technical fields are included in the scope of the present invention.
Claims (8)
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010372758.3A CN111397816B (en) | 2020-05-06 | 2020-05-06 | A PE valve air tightness test device |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010372758.3A CN111397816B (en) | 2020-05-06 | 2020-05-06 | A PE valve air tightness test device |
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| CN111397816A CN111397816A (en) | 2020-07-10 |
| CN111397816B true CN111397816B (en) | 2025-07-01 |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN114054263B (en) * | 2020-08-03 | 2023-04-07 | 龚海涛 | Oil applying device for inner wall of welded pipe |
| CN111964899B (en) * | 2020-08-11 | 2022-08-30 | 理文科技(山东)股份有限公司 | Valve leakage detection device for air conditioner production and use method thereof |
| CN112504855A (en) * | 2020-12-02 | 2021-03-16 | 浙江枫叶管业科技股份有限公司 | Large-diameter PE pipe external pressure test device |
| CN113483963A (en) * | 2021-07-01 | 2021-10-08 | 青岛理工大学（临沂）管理委员会办公室 | Automatic detection device for air tightness of valve |
| CN115235700A (en) * | 2022-06-13 | 2022-10-25 | 安徽创华自控仪表设备有限公司 | Valve sealing performance test equipment |
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| CN212007700U (en) * | 2020-05-06 | 2020-11-24 | 山东万吉塑胶有限公司 | A PE valve air tightness test device |
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| KR100824213B1 (en) * | 2007-02-09 | 2008-04-22 | 에스씨에스 주식회사 | Safety valve test device |
| KR100941768B1 (en) * | 2009-08-31 | 2010-02-11 | 한국건설기술연구원 | Apparatus for testing leakage performance of door |
| CN202974575U (en) * | 2012-11-21 | 2013-06-05 | 浙江金盾消防器材有限公司 | Valve gas tightness test clamping device |
| CN104316272A (en) * | 2014-11-14 | 2015-01-28 | 江南工业集团有限公司 | Low-temperature valve airtightness test device |
| CN206177536U (en) * | 2016-06-22 | 2017-05-17 | 海门市苍云机械有限公司 | PE valve equipment of leaking hunting |
| KR101951540B1 (en) * | 2017-03-06 | 2019-02-22 | 한전케이피에스 주식회사 | Valve leakage test equipment |
| CN206876359U (en) * | 2017-03-27 | 2018-01-12 | 广东茂化建集团有限公司 | A valve air tightness automatic detection device |
| CN109632197B (en) * | 2018-11-07 | 2020-11-10 | 浙江纳迪克数控设备有限公司 | Valve sealing performance detection device |
| CN109682554A (en) * | 2019-01-14 | 2019-04-26 | 中国计量大学 | A kind of PE ball-valve valve rod tightness test device and its detection method |
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| CN212007700U (en) * | 2020-05-06 | 2020-11-24 | 山东万吉塑胶有限公司 | A PE valve air tightness test device |
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Inventor after: Wang Baoxing Inventor after: Li Gang Inventor after: Song Shubing Inventor before: Song Shubing Inventor before: Li Gang Inventor before: Wang Baoxing |
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