CN217132555U - Quick circulation testing arrangement of valve low noise positive negative pressure - Google Patents
Quick circulation testing arrangement of valve low noise positive negative pressure Download PDFInfo
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- CN217132555U CN217132555U CN202221001040.4U CN202221001040U CN217132555U CN 217132555 U CN217132555 U CN 217132555U CN 202221001040 U CN202221001040 U CN 202221001040U CN 217132555 U CN217132555 U CN 217132555U
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Abstract
A low-noise positive and negative pressure rapid cycle testing device for a valve is characterized in that a sealing cavity used for setting a tested valve is arranged in a positive and negative pressure sealing chamber, a plurality of first manual vacuum valves for communicating the sealing cavity with the tested valve are arranged on the positive and negative pressure sealing chamber, a low-noise pressure relief/exhaust device is connected with the corresponding first manual vacuum valves, an automatic pressurization/pressure compensation device is connected with the corresponding first manual vacuum valves, and a data processing device is connected with the low-noise pressure relief/exhaust device and the automatic pressurization/pressure compensation device. Has the advantages that: high precision, high automation degree, low energy consumption and no noise pollution.
Description
Technical Field
The patent of the utility model relates to a quick circulation testing arrangement of positive negative pressure of valve low noise.
Background
With the improvement of valve product technology and the improvement of the performance requirements of users on the product, the conventional pressure test, the size and the like can not meet the requirements of users on the performance indexes of the valve product, and the reliability indexes are more and more concerned. The reliability index is one of the main factors of damage of the product in the using process and becomes a key factor for measuring the performance of the product. The positive and negative pressure circulation reliability index of the valve products with the negative pressure, the positive pressure and the negative pressure alternative working conditions, which are related to the fields of sanitation, medical use, pharmacy, underwater working conditions, clean energy, road transportation oil products and the like, is particularly important, but related reports of a valve positive and negative pressure quick circulation testing device and tests are not seen at home at present, so that the positive and negative pressure circulation reliability of the valve products cannot be effectively verified, the development of the products is seriously restricted, and certain potential safety hazards exist after the products are put into use.
At present, some enterprises adopt simple devices composed of vacuum pumps and the like to perform suction cycle testing, and the following defects or shortcomings are mainly present: 1) the single cycle time is long, and the product delivery time is influenced during the cycle reliability test, so that the production cost is increased; 2) the automation degree is low, the accuracy is poor, and the repeatability of a product performance reliability test result is poor; 3) the vacuum pump suction process has high requirements on pipeline connection sealing, the test operation is difficult, the time for eliminating leakage points is long, and the calibration efficiency is influenced.
SUMMERY OF THE UTILITY MODEL
The utility model aims at solving the prior technical problem and providing a quick circulation testing arrangement of positive negative pressure of valve low noise.
In order to achieve the above purpose, the utility model adopts the following technical scheme: the utility model provides a quick cyclic test device of valve low noise positive negative pressure, including low noise pressure release exhaust apparatus, automatic pressurization/pressure supplement device, data processing apparatus and positive negative pressure seal chamber, be equipped with the seal chamber that is used for setting up the valve under test in the positive negative pressure seal chamber, be equipped with a plurality of first manual vacuum valves of intercommunication seal chamber and valve under test on the positive negative pressure seal chamber, low noise pressure release exhaust apparatus is connected with the first manual vacuum valve that corresponds, automatic pressurization/pressure supplement device is connected with the first manual vacuum valve that corresponds, data processing apparatus is connected with low noise pressure release exhaust apparatus and automatic pressurization/pressure supplement device.
Further, positive negative pressure seal chamber includes the seal chamber body, the seal chamber lid, first manual vacuum valve, coupling hose, safe hasp and first quick connector, the internal upper end open-ended seal chamber that is equipped with of seal chamber, the seal chamber lid is connected to the seal chamber body upper end and sealed chamber is sealed through safe hasp realization, be equipped with four first manual vacuum valves on the seal chamber, a first quick connector is all connected to four first manual vacuum valve one ends, wherein two first manual vacuum valve one ends are passed through coupling hose and are connected the measured valve, two other first manual vacuum valve one ends are connected to the seal chamber.
Furthermore, the low-noise pressure relief/exhaust device comprises a silencer, a second manual vacuum valve, a first electric control valve and a second quick-connection plug, one end of one first electric control valve is connected with one second quick-connection plug through a connecting hose, one end of the other first electric control valve is connected with the other second quick-connection plug through a connecting hose, the other ends of the two first electric control valves are connected to one end of the second manual vacuum valve, and the other end of the second manual vacuum valve is connected to the silencer.
Furthermore, the automatic pressurizing/pressure supplementing device comprises an air source, a pressure regulating valve, a third manual vacuum valve, a booster pump, a check valve, a second electric control valve, a digital display pressure sensor and a third quick connector, wherein the air outlet end of the air source is connected with one end of the pressure regulating valve, the other end of the pressure regulating valve is connected with one end of the third manual vacuum valve, the other end of the third manual vacuum valve is connected with one end of the check valve, the other end of the check valve is respectively connected with one end of the two second electric control valves and the digital display pressure sensor, the other end of one second electric control valve is connected with one third quick connector through a connecting hose, the other end of the other second electric control valve is connected with the other third quick connector through a connecting hose, and the booster pump is connected with one end of the check valve and one end of the two second electric control valves.
Furthermore, the data processing device is connected with the two first electric control valves, the two second electric control valves, the booster pump and the digital display pressure sensor.
Further, the connection hose is a pressure-resistant connection hose.
Furthermore, the booster pump is an electromagnetic power small-sized gas booster pump, and the silencer is a large-flow silencer.
Furthermore, the booster pump is connected to a connecting pipeline between one end of the two second electric control valves and the digital display pressure sensor, and the booster pump is connected to a connecting pipeline between the one-way valve and the other end of the third manual vacuum valve.
The utility model has the advantages that: 1) the utility model discloses compact structure, detection efficiency, accuracy and degree of automation are high, adopt "the relative negative pressure of valve pocket under the simulation" principle, realized the positive and negative pressure quick cycle test of malleation to hPa (hectopascal level) negative pressure and required lowly to the pipeline seal relatively, solved the simple testing arrangement of current vacuum pump single cycle length, the sealed requirement of connecting line is high (the leak source is got rid of and is taken up time length), low in test efficiency, the low problem of accuracy, the complete machine adopts intelligent control techniques such as data processing device integrated control, data processing and digital display pressure sensing, realized functions such as accurate control such as pressure, cycle number automatic recording, characteristic curve real-time display, the pressure control accuracy and the automation level of positive and negative pressure cycle test are provided by a wide margin;
2) the utility model is safe, reliable, full in function (fast pressurization/pressure compensation), the automatic pressurization/pressure compensation device adopts the parallel loop of the electromagnetic-driven fine small gas booster pump and the one-way valve, multiple designs of fast automatic pressurization/pressure compensation, prevention of backflow after pressurization and the like are realized, the equipment efficiency is high, and the safety is good; the automatic pressurizing/pressure supplementing device adopts the design of a parallel loop of an electric control valve, so that the rapid switching pressurizing/pressure supplementing function of a tested valve and a sealing chamber can be realized;
3) the utility model has low noise and no pollution, the used gas medium is air or nitrogen, the pressure relief/exhaust device adopts an electric control valve to be connected with a double control loop in parallel, and the exhaust end is provided with a large-flow silencer, thereby realizing the automatic and rapid switching of the pressure relief/exhaust of the sealing chamber and the tested valve and the rapid and low-noise pressure relief/exhaust;
4) the utility model discloses the function is complete, the simple operation, the detection cost is low, the seal chamber design compact structure, can satisfy "malleation to hPa (hectopa level) negative pressure" positive and negative pressure circulation test requirement of different structure valves, also can carry out the gas seal test of valve and disk seat, the difficult problem that vacuum pump suggestion device need design vacuum hood (with high costs, man-hour length etc.) according to the different structure of valve has been solved, effectively reduce the detection cost, improve detection efficiency, through quick connector and withstand voltage connecting hose, can be fast convenient with low noise pressure release/exhaust apparatus, automatic pressurization/pressure supplement device realize being connected, realize positive and negative pressure circulation test;
5) the utility model discloses degree of automation is high, the operation is directly perceived, adopts integral type data processing system, will be surveyed the valve and install in sealed chamber and connect the back, can realize the implementation and real-time supervision, data real-time collection, characteristic curve display, data storage and processing, report/record printing etc. of valve positive and negative pressure circulation test through some accuse data processing system interface.
Drawings
Fig. 1 is a schematic view of a connection structure.
Fig. 2 is a schematic structural view of the positive and negative pressure sealing chamber.
Fig. 3 is a schematic view of the outside of the positive and negative pressure sealed chamber.
1 is a positive and negative pressure sealing chamber; 1.2 is a connecting hose; 1.1, 1.3, 1.4 and 1.5 are first manual vacuum valves; 1.6 is a sealing chamber body; 1.7 is a sealed chamber cover; 1.8 is a safety lock catch; a1, A2, A3 and A4 are first quick-connection connectors;
2 is a low noise pressure relief/exhaust device; 2.1 is a silencer; 2.2 is a second manual vacuum valve, and 2.3 and 2.6 are first electric control valves; 2.4 and 2.5 are connecting hoses; b1 and B2 are second quick-connect plugs;
3 is an automatic pressurizing/pressure supplementing device; 3.1 is an air source; 3.2 is a pressure regulating valve; 3.3 is a third manual vacuum valve; 3.4 is a booster pump; 3.5 is a one-way valve; 3.6 and 3.9 are second electric control valves; 3.10 is a digital display pressure sensor; b3 and B4 are third quick-plug connectors; 3.7 and 3.8 are connecting hoses;
and 4, a data processing device.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.
A low-noise positive and negative pressure rapid cycle testing device for a valve comprises a positive and negative pressure sealing chamber 1 comprising a sealing chamber body 1.6, a sealing chamber cover 1.7, first manual vacuum valves 1.1, 1.3, 1.4, 1.5, a connecting hose 1.2, a safety lock catch 1.8, a first quick-connection plug A1, A2, A3 and A4, wherein a sealing chamber with an opening at the upper end is arranged in the sealing chamber body, the upper end of the sealing chamber body is connected with the sealing chamber cover and sealed by the safety lock catch, the sealing chamber is provided with four first manual vacuum valves 1.1, 1.3, 1.4 and 1.5, one ends of the four first manual vacuum valves 1.1, 1.3, 1.4 and 1.5 are respectively connected with a first quick-connection plug A1, A2, A3 and A4, one ends of the two first manual vacuum valves are connected with a tested valve through the connecting hose, and one ends of the other two first manual vacuum valves are connected with the sealing chamber.
The first manual vacuum valve 1.1 is connected with a first quick-connection connector A2;
the first manual vacuum valve 1.3 is connected with a first quick-connection connector A3;
the first manual vacuum valve 1.4 is connected with a first quick-connection connector A1;
the first manual vacuum valve 1.5 is connected to a first quick connector a 4.
The first manual vacuum valve is arranged on the upper four sides of the sealing chamber body and used for controlling gas medium to enter, discharge and positive and negative pressure circulation;
one end of each of the 2 connecting hoses is arranged on the sealing chamber body and is connected with the first manual vacuum valve 1.1 and the first manual vacuum valve 1.4, and the other end of each connecting hose is used for connecting a valve to be tested;
the sealing chamber body and the sealing chamber cover are locked by the safety lock catch to realize sealing to form a sealing cavity which is used for placing a valve to be tested and can bear certain positive and negative pressure impact;
the quick connection-peg is positioned at the outer side of the first manual vacuum valve at the four sides of the sealing chamber body and is used for being quickly connected and detached with the low-noise pressure relief/exhaust device or the automatic pressurization/pressure compensation device;
the utility model provides a valve low noise positive negative pressure rapid cycle testing arrangement, low noise pressure release/exhaust apparatus includes muffler 2.1, the manual vacuum valve 2.2 of second, first electric control valve 2.3, 2.6 and second quick connector B1, B2, a first electric control valve one end passes through coupling hose and connects a second quick connector, another first electric control valve one end passes through coupling hose and connects another second quick connector, the other end of two first electric control valves all is connected to the manual vacuum valve one end of second, the manual vacuum valve other end of second is connected to on the muffler.
The silencer is arranged at the rear ends of the first electric control valve and the second manual vacuum valve and is used for eliminating noise when a positive-negative pressure sealing chamber or a tested valve is subjected to quick pressure relief/exhaust;
the second manual vacuum valve assists the first electric control valve to control the connection and disconnection of the pressure relief/exhaust pipeline;
the first electric control valve is connected with the positive and negative pressure sealing chamber through a connecting hose, and two parallel loops are arranged, wherein one loop is used for automatic pressure relief/air exhaust of the tested valve, and the other loop is used for automatic pressure relief/air exhaust of the positive and negative pressure sealing chamber;
the connecting hoses 2.4 and 2.5 are used for connecting the low-noise pressure relief/exhaust device and the positive and negative pressure sealing chamber;
the second quick-connection connector is positioned at the front end of the connecting hose and is used for connecting the positive and negative pressure sealing chamber;
a low-noise positive and negative pressure rapid cycle testing device for a valve comprises an air source 3.1, a pressure regulating valve 3.2, a third manual vacuum valve 3.3, a booster pump 3.4, a one-way valve 3.5, a second electric control valve 3.6, a digital display pressure sensor, a third quick connector B3 and a third quick connector B4, wherein the air outlet end of the air source is connected with one end of the pressure regulating valve, the other end of the pressure regulating valve is connected with one end of the third manual vacuum valve, the other end of the third manual vacuum valve is connected with one end of the one-way valve, the other end of the one-way valve is respectively connected with one end of two second electric control valves and the digital display pressure sensor, the other end of one second electric control valve is connected with one third quick connector through a connecting hose, the other end of the other second electric control valve is connected with the other third quick connector through a connecting hose, and the booster pump is connected with one end of the one-way valve and one end of the two second electric control valves.
The air source supplies air to the device;
the pressure regulating valve is used for regulating the pressure of the gas output by the gas source;
the third manual vacuum valve is used for controlling the on-off of an air source;
the booster pump and the one-way valve form a booster parallel loop, when the output pressure of the air source is sufficient, the air is directly supplied to the tested valve through the one-way valve, when the pressure of the air source is insufficient, the booster pump is automatically started to carry out pressurization/pressure compensation, and the pressurized air medium cannot flow back to the air source end due to the reverse check and non-return function of the one-way valve, so that the booster pump is safe and reliable and meets the test requirement;
the one-way valve and the booster pump form a parallel loop to play the roles of one-way circulation and non-return;
the second electric control valve is connected with the positive and negative pressure sealing chamber through a connecting hose, and is provided with two parallel loops for automatic alternate pressurization/pressure compensation circulation test of the tested valve or the positive and negative pressure sealing chamber;
the connecting hoses 3.7 and 3.8 are used for connecting the automatic pressurizing/pressure supplementing device and the positive and negative pressure sealing chamber;
the digital display pressure sensor is used for monitoring the pressure of the sealing chamber or the measured valve in real time;
the third quick connector is used for quickly connecting and disassembling the automatic pressurizing/pressure supplementing device and the sealing chamber.
A low-noise positive and negative pressure rapid cycle testing device for a valve is characterized in that a data processing device 4 is connected with two first electric control valves, two second electric control valves, a booster pump and a digital display pressure sensor.
The data processing device comprises an integrated and built-in PLC, a computer system or a touch screen, positive and negative pressure circulation test software and an electric element, realizes the automatic control of the positive and negative pressure circulation test of the valve, collects and analyzes data/parameters such as real-time pressure, positive and negative pressure circulation times and the like, forms functions such as characteristic curves, automatically stores data, records, generates reports and the like, and can be interconnected with a mobile phone to realize remote monitoring.
The data processing device is used for controlling the operation, pressure setting, regulation, circulation and the like of the low-noise positive and negative pressure rapid cycle testing device for the valve, realizing the positive and negative pressure rapid cycle automatic testing from positive pressure to hPa (hectopascal) negative pressure of a valve to be tested (simulating the relative negative pressure principle of a valve cavity of an underwater valve), and carrying out real-time monitoring and acquisition, data processing/storage, characteristic dynamic curve display, report/record generation on parameters such as pressure, cycle times and the like.
A low-noise positive and negative pressure rapid cycle testing device for a valve is characterized in that a connecting hose is a pressure-resistant connecting hose.
A low-noise positive and negative pressure rapid cycle testing device for a valve is characterized in that a booster pump is an electromagnetic-driven small-sized gas booster pump, and a silencer is a large-flow silencer.
The utility model provides a quick circulation testing arrangement of positive negative pressure of valve low noise, the booster pump is connected on two second electric control valve one end and digital display pressure sensor connecting pipe way, and the booster pump is connected on check valve and third manual vacuum valve other end connecting pipe way.
A valve low-noise positive and negative pressure rapid cycle testing device solves the technical bottlenecks of industry commonalities 'necks' that the positive and negative pressure cycle test of valve products with negative pressure, positive pressure and positive and negative pressure alternate working conditions, which are related to the fields of sanitation, medical use, pharmacy, underwater working conditions, clean energy, road transportation oil products and the like, has long test period, high detection cost, poor test accuracy (reproducibility), low automation degree and the like and cannot meet the requirements of standard test and industry development.
The utility model discloses a "simulation is valve pocket relative negative pressure" principle under water, combine the intelligence to control test technique, the design of the quick positive negative pressure circulation testing arrangement of malleation to hPa (hectopascal level) negative pressure of low noise has been realized, degree of automation is high, it is multiple functional, measurement accuracy (reproducibility) is high, and integrated data acquisition/processing, the characteristic curve generates, monitoring during positive and negative compaction, report/record automatic generation/function such as printing, with the hope of having reduced the detection cost by a wide margin, detection efficiency has been improved, automation and measurement accuracy, for medical, pharmacy, positive and negative pressure operating mode valve product quality such as road transportation oil product promotes and product safety provides technical support.
A low-noise positive and negative pressure rapid cycle test device for a valve can realize the positive and negative pressure rapid cycle test in the range from positive pressure to hPa (hectopa) level negative pressure of a simulated underwater valve cavity relative to the negative pressure principle.
The tested valve is arranged in a positive and negative pressure sealing chamber, and the positive and negative pressure sealing chamber is connected with the low-noise pressure relief/exhaust device 2 and the automatic pressurization/pressure compensation device 3 through pressure-resistant connecting hoses and a first quick-connection plug, a second quick-connection plug and a third quick-connection plug; the sealing chamber body 1.6 and the sealing chamber cover 1.7 are locked by the safety lock catch 1.8 to realize sealing to form a sealing cavity which is used for placing a valve to be tested and can bear certain positive and negative pressure impact; the quick-connection plugs A1, A2, A3 and A4 are positioned at the outer sides of the manual valves at the four sides of the sealing chamber body and are used for being quickly connected and disconnected with a low-noise pressure relief/exhaust device or an automatic pressurization/pressure compensation device.
The two first electric control valves 2.3 and 2.6 form a parallel loop for fast switching pressure relief/discharge between the tested valve or the positive and negative pressure sealing chamber 1;
when the positive and negative pressure sealing chamber 1 is automatically pressurized/supplemented (the valve to be tested is communicated with atmosphere), the valve to be tested bears external pressure, the valve inner cavity is in a relative negative pressure state (namely the principle of simulating the relative negative pressure of the valve cavity of the underwater valve), and the negative pressure value can be set through the data processing device CPC and implemented through the pressure regulating valve 3.2 and the booster pump 3.4; when the tested valve is automatically pressurized/supplemented (the sealing chamber 1 is filled with air), the tested valve is pressurized by internal pressure, the valve inner cavity is in a positive pressure state, the positive pressure value data processing device CPC is set and is implemented through a pressure regulating valve 3.2 and a booster pump 3.4; the air source 3.1 is connected with the pressure regulating valve 3.2 to provide air pressure and pressure regulation for the automatic pressurizing/pressure supplementing device 3; the third manual vacuum valve 3.3 is positioned at the front end of the pressure regulating valve 3.2 and used for controlling the on-off of an air source; the booster pump 3.4 and the one-way valve 3.5 form a pressurization/pressure compensation parallel loop, when the output pressure of the air source is sufficient, the air directly supplies air to the tested valve or the positive and negative pressure sealing chamber through the one-way valve 3.5, when the pressure of the air source is insufficient, the booster pump 3.4 automatically starts to pressurize/compensate the pressure, and the pressurized/pressure compensated air medium cannot flow back to the air source end due to the reverse check and non-return function of the one-way valve 3.5, so that the system is safe and reliable and meets the test requirement; the two second electric control valves 3.6 and 3.9 are connected in parallel, are respectively connected with the positive and negative pressure sealing chamber 1 or the tested valve through a connecting hose 3.7 and a third quick connector B3, a connecting hose 3.8 and a third quick connector B4, and are used for controlling the automatic alternate pressurization/pressure compensation circulation test of the positive and negative pressure sealing chamber 1 or the tested valve; and the digital display pressure sensor 3.10 is positioned at the outlet ends of the booster pump 3.4 and the one-way valve 3.5 loop and is used for monitoring the pressure of the sealing chamber or the measured valve in real time.
A low-noise positive and negative pressure rapid cycle testing device for a valve comprises a low-noise positive and negative pressure rapid cycle detection loop (pressure range from positive pressure to hPa (hectopa) level negative pressure).
The low-noise positive and negative pressure rapid circulating detection loop comprises a positive and negative pressure sealing chamber 1, a low-noise pressure relief/exhaust device 2, an automatic pressurization/pressure supplement device 3 and a data processing device CPC 4; the low-noise positive and negative pressure rapid cycle adopts the principle of simulating the relative negative pressure of an underwater valve due to a water pressure (external pressure) valve cavity, and adopts the design of automatic alternate pressurization/pressure compensation, low-noise automatic alternate pressure relief/discharge and the like of a positive and negative pressure sealing chamber 1 and a tested valve; during testing, the valve to be tested is arranged in the positive and negative pressure sealing chamber 1 and is connected well and is partially or fully opened, the second quick connector B1 is connected with the first quick connector A1, the second quick connector B2 is connected with the first quick connector A4, the third quick connector B3 is connected with the first quick connector A3 and the third quick connector B4 is connected with the first quick connector A2, the first manual vacuum valve 1.1, the first manual vacuum valve 1.3, the first manual vacuum valve 1.4, the first manual vacuum valve 1.5, the second manual vacuum valve 2.2 and the third manual vacuum valve 3.3 are opened, and the pressure regulating valve 3.2 is set to a specified pressure; when the pressure is positive (the tested valve is pressurized, and the sealing chamber 1 is communicated with the atmosphere), the one-way valve 3.5 is opened under pressure, the first electric control valve 2.3 and the second electric control valve 3.6 are closed, and the first electric control valve 2.6 and the second electric control valve 3.9 are opened; when the pressure is negative (the tested valve is communicated with the atmosphere and the sealing chamber 1 is pressurized), the check valve 3.5 is opened under pressure, the first electric control valve 2.6 and the second electric control valve 3.9 are closed, and the first electric control valve 2.3 and the second electric control valve 3.6 are opened; the positive and negative pressure (positive pressure is set to hPa grade negative pressure) rapid cycle test is realized in sequence and repeatedly circulated until the specified cycle times are reached; if the pressure supplied by the gas source is insufficient in the circulation process, the booster pump 3.4 can be automatically started to supplement pressure, so that the stability of the test pressure is ensured, and the check valve 3.5 prevents the gas after being boosted from flowing back to influence the gas source; in the circulation process, the first electric control valve 2.3 and the second electric control valve 3.6 are circularly and alternately opened to release pressure/discharge, and the pressure/discharge is discharged through the silencer 2.1, so that the rapid/pressure-release exhaust and low noise are realized; in the test process, the data processing device 4 collects the pressure data of the pressure sensor 3.10 in real time to form a data report and a characteristic curve.
The above, only be the embodiment of the preferred of the present invention, but the protection scope of the present invention is not limited thereto, and any person skilled in the art is in the technical scope of the present invention, according to the technical solution of the present invention and the utility model, which are designed to be replaced or changed equally, all should be covered within the protection scope of the present invention.
Claims (8)
1. The utility model provides a quick circulation testing arrangement of positive negative pressure of valve low noise, includes low noise pressure release/exhaust apparatus, automatic pressurization/pressure supplementing device, data processing apparatus and positive negative pressure seal chamber, its characterized in that: the positive and negative pressure sealing chamber is internally provided with a sealing cavity for arranging a tested valve, the positive and negative pressure sealing chamber is provided with a plurality of first manual vacuum valves for communicating the sealing cavity with the tested valve, the low-noise pressure relief/exhaust device is connected with the corresponding first manual vacuum valves, the automatic pressurization/pressure supplement device is connected with the corresponding first manual vacuum valves, and the data processing device is connected with the low-noise pressure relief/exhaust device and the automatic pressurization/pressure supplement device.
2. The valve low-noise positive and negative pressure rapid cycle testing device according to claim 1, wherein: positive negative pressure seal chamber includes the seal chamber body, the seal chamber lid, first manual vacuum valve, coupling hose, safe hasp and first quick connector, the internal sealed chamber that is equipped with upper end open-ended of seal chamber, the seal chamber lid is connected to the seal chamber body upper end and sealed chamber is sealed through safe hasp realization, be equipped with four first manual vacuum valves on the seal chamber, a first quick connector is all connected to four first manual vacuum valve one ends, wherein two first manual vacuum valve one ends are passed through coupling hose and are connected the measured valve, two first manual vacuum valve one ends are connected to the sealed chamber in addition.
3. The valve low-noise positive and negative pressure rapid cycle testing device according to claim 2, wherein: the low-noise pressure relief/exhaust device comprises a silencer, second manual vacuum valves, first electric control valves and second quick-plugging connectors, one end of one first electric control valve is connected with one second quick-plugging connector through a connecting hose, one end of the other first electric control valve is connected with the other second quick-plugging connector through a connecting hose, the other ends of the two first electric control valves are connected to one end of the second manual vacuum valve, and the other end of the second manual vacuum valve is connected to the silencer.
4. The valve low-noise positive and negative pressure rapid cycle testing device of claim 3, wherein: the automatic pressurization/pressure compensation device comprises an air source, a pressure regulating valve, a third manual vacuum valve, a booster pump, a one-way valve, a second electric control valve, a digital display pressure sensor and a third quick connector, wherein the air outlet end of the air source is connected with one end of the pressure regulating valve, the other end of the pressure regulating valve is connected with one end of the third manual vacuum valve, the other end of the third manual vacuum valve is connected with one end of the one-way valve, the other end of the one-way valve is respectively connected with one end of the two second electric control valves and the digital display pressure sensor, the other end of one second electric control valve is connected with one third quick connector through a connecting hose, the other end of the other second electric control valve is connected with the other third quick connector through a connecting hose, and the booster pump is connected with one end of the one-way valve and one end of the two second electric control valves.
5. The valve low-noise positive and negative pressure rapid cycle testing device of claim 4, wherein: the data processing device is connected with the two first electric control valves, the two second electric control valves, the booster pump and the digital display pressure sensor.
6. The valve low-noise positive and negative pressure rapid cycle testing device of claim 5, wherein: the connecting hose is a pressure-resistant connecting hose.
7. The valve low-noise positive and negative pressure rapid cycle testing device of claim 5, wherein: the booster pump is an electromagnetic fine-moving small-sized gas booster pump, and the silencer is a large-flow silencer.
8. The valve low-noise positive and negative pressure rapid cycle testing device of claim 4, wherein: the booster pump is connected on the connecting pipeline between one end of the two second electric control valves and the digital display pressure sensor, and the booster pump is connected on the connecting pipeline between the one-way valve and the other end of the third manual vacuum valve.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221001040.4U CN217132555U (en) | 2022-04-24 | 2022-04-24 | Quick circulation testing arrangement of valve low noise positive negative pressure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221001040.4U CN217132555U (en) | 2022-04-24 | 2022-04-24 | Quick circulation testing arrangement of valve low noise positive negative pressure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217132555U true CN217132555U (en) | 2022-08-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221001040.4U Active CN217132555U (en) | 2022-04-24 | 2022-04-24 | Quick circulation testing arrangement of valve low noise positive negative pressure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217132555U (en) |
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2022
- 2022-04-24 CN CN202221001040.4U patent/CN217132555U/en active Active
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