CN209764359U - Nanotube bundle detection device - Google Patents

Nanotube bundle detection device Download PDF

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Publication number
CN209764359U
CN209764359U CN201920587002.3U CN201920587002U CN209764359U CN 209764359 U CN209764359 U CN 209764359U CN 201920587002 U CN201920587002 U CN 201920587002U CN 209764359 U CN209764359 U CN 209764359U
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China
Prior art keywords
nanotube bundle
pressure
detection
shell
gas circuit
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CN201920587002.3U
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Chinese (zh)
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李金榜
韩衍
姚勇
张晓艳
刘天伟
赖晓龙
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Power Polytron Technologies Inc
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Power Polytron Technologies Inc
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Abstract

the utility model relates to a nanotube bundle detection device. Nanotube bundle detection device includes the casing, be equipped with the air pump in the casing and to the power module of air pump power supply, the gas outlet of air pump is connected with the measurement gas circuit, it is equipped with the governing valve and sets up the pressure retaining valve in governing valve low reaches to cluster on the measurement gas circuit, nanotube bundle detection device still includes two at least parallelly connected series connection ventilative detection module on measuring the gas circuit, ventilative detection module is in the low reaches of pressure retaining valve, be equipped with the manometer of giving vent to anger that is used for measuring ventilative detection module inlet pressure on the casing and is used for measuring ventilative detection module pressure of giving vent to anger, the manometer of giving vent to anger sets up the upper reaches at ventilative detection module, the manometer. Above-mentioned technical scheme has been solved and has been used for detecting the lower technical problem of check out test set detection efficiency of waterproof ventilated membrane among the prior art.

Description

Nanotube bundle detection device
Technical Field
The utility model relates to a nanotube bundle detection device.
Background
The nanotube bundle is a filter element arranged on the hydrogen leakage detection transmitter and is used for filtering water vapor in the water tank of the generator. The nanotube bundle needs to have a certain air permeability and can bear a certain pressure, so that the sensor can be prevented from being affected with damp and damaged due to the fact that water vapor enters the transmitter. And whether the hydrogen leak detection transmitter can timely and accurately measure the hydrogen leaked in the water tank of the generator and can stably measure for a long time, and the water pressure resistance and air permeability resistance of the nanotube bundle play a key role.
In order to ensure that all the nanotube bundles leaving the factory meet the design requirements, the nanotube bundles need to be subjected to air permeability and waterproof inspection. In the prior art, there are various devices for detecting the air permeability and the water pressure resistance of a waterproof breathable film similar to a nanotube bundle, and for example, chinese patent application with application publication No. CN108592989A discloses a gas flow detection device for a waterproof breathable film. The gas flow detection equipment for the waterproof breathable film comprises a case shell, wherein a breathable detection module is arranged on the case shell and comprises a gas inlet pipe, a gas pressure valve, a gas outlet pipe and a breathable test knob capable of opening or closing the gas inlet pipe; the casing of the case is also provided with a waterproof detection module, and the waterproof detection module comprises a water inlet pipe, a water pressure valve, a water outlet pipe and a waterproof test knob capable of opening or closing the water inlet pipe; still be equipped with the adjust knob that can control atmospheric pressure valve and water pressure valve on the casing of the case, this waterproof ventilated membrane's gas flow check out test set is still including the detection frock clamp of connecting outlet duct or outlet pipe, and it is used for fixed waterproof ventilated membrane to detect frock clamp.
Above-mentioned gas flow check out test set of waterproof ventilated membrane is connected through detecting frock clamp and waterproof detection module or ventilative detection module, realizes testing waterproof ventilated membrane's water resistance pressure and ventilative volume performance, however, this check out test set can only carry out the capability test to a waterproof ventilated membrane at every turn, only is fit for the detection of the waterproof ventilated membrane of small batch, and detection efficiency is lower.
SUMMERY OF THE UTILITY MODEL
an object of the utility model is to provide a nanotube bundle detection device to solve the lower technical problem of check out test set detection efficiency who is used for detecting waterproof ventilated membrane among the prior art.
In order to achieve the above object, the utility model provides a nanotube bundle detection device's technical scheme is:
A nanotube bundle inspection device, comprising:
A housing;
An air pump;
the external power supply connector or the power supply module is used for supplying power to the air pump;
The measuring gas circuit is arranged in the shell and is connected with a gas outlet of the gas pump;
the pressure regulating valve is connected in series on the measuring gas path and is arranged on the shell;
the pressure retaining valve is connected in series on the measuring gas path, is positioned at the downstream of the pressure regulating valve and is arranged on the shell;
The device comprises a shell, a plurality of ventilation detection modules, a pressure retaining valve and a plurality of pressure sensors, wherein the ventilation detection modules are connected in series on a measurement gas path in parallel, are positioned at the downstream of the pressure retaining valve and are used for fixedly mounting nanotube bundles so as to enable the nanotube bundles to be connected on the measurement gas path in series;
The air inlet pressure gauge is connected in series on the measuring air path, is positioned at the upstream of the ventilation detection module, is arranged on the shell and is used for detecting the air inlet pressure of the ventilation detection module;
And the air outlet pressure gauge is connected in series on the measuring air path, is positioned at the downstream of the air-permeable detection module, is arranged on the shell and is used for detecting the air outlet pressure of the air-permeable detection module.
Has the advantages that: the air pump starts to bleed after the circular telegram in order to produce certain pressure to measuring the gas circuit to adjust the pressure of measuring gas circuit in through the governing valve and make it reach the test pressure value, utilize the pressure retaining valve to keep current pressure value, breathe freely through ventilative detection module at last and detect. Because this nanotube bundle detection device includes at least two sets of ventilative detection module, can breathe freely the detection to more than two nanotube bundles simultaneously at every turn, improved detection efficiency, be fit for detecting the nanotube bundle of large batch.
Further, ventilative detection module is including detecting chamber and flowmeter, detects the chamber and is used for installing nanotube bundle, and the flowmeter is in nanotube bundle downstream for show the gas flow through nanotube bundle, detect the chamber and include the barrel and install top connection and the lower clutch at both ends about the barrel, upper and lower clutch is used for being connected with the measurement gas circuit, at least one demountable installation in the upper and lower clutch at barrel tip.
Has the advantages that: the upper joint and the lower joint of the detection cavity are detachably arranged at the end part of the cylinder body of the detection cavity, so that the nanotube bundle can be conveniently arranged and replaced, and the installation and replacement time of the nanotube bundle is correspondingly saved so as to further improve the detection efficiency of the nanotube bundle.
Preferably, the upper joint and the lower joint have the same structure and can be detachably arranged at two ends of the cylinder body.
Has the advantages that: the upper joint and the lower joint have the same structure, namely the upper joint and the lower joint can be used reversely in the actual measurement process, the universality is high, only one joint needs to be manufactured, more joints do not need to be manufactured additionally, and the production cost is saved.
Further, the lower joint passes through threaded connection at the barrel lower extreme, and lower joint and barrel press from both sides the roof of casing tightly and realize detecting the fixed connection of chamber and casing.
Has the advantages that: through threaded connection, the lower joint is convenient to disassemble, and simultaneously, the lower joint and the barrel are favorable for clamping a top plate of the shell, so that the fixed connection between the detection cavity and the shell is realized.
preferably, the casing is a box-type casing, the detection cavity is fixedly arranged on a top plate of the box-type casing, the flowmeter is arranged on a front side plate of the box-type casing, and a display part of the flowmeter is exposed out of the front side plate.
has the advantages that: the casing adopts box casing, is convenient for to the protection of flowmeter, and the flowmeter is installed on the preceding curb plate of box casing and the display part exposes outside the preceding curb plate, the operating personnel's of being convenient for observation.
Preferably, the shell is a box-type shell, the air inlet pressure gauge and the air outlet pressure gauge are installed on a top plate of the box-type shell, and the regulating valve and the pressure retaining valve are installed on a front side plate of the box-type shell.
has the advantages that: the air inlet pressure gauge and the air outlet pressure gauge are both installed on the top plate of the box-type shell, so that operators can observe numerical values on the air inlet pressure gauge and the air outlet pressure gauge, the radial installation space of the box-type shell is saved, the adjusting valve and the pressure retaining valve are installed on the front side plate of the box-type shell, and the operators can operate the adjusting valve and the pressure retaining valve conveniently.
Further, ventilative detection module and the manometer of giving vent to anger constitute ventilative detection gas circuit, measure the gas circuit and still include the waterproof detection gas circuit parallelly connected with ventilative detection gas circuit, waterproof detection gas circuit includes waterproof detection module and water pressure resistant manometer, and waterproof detection module is used for detecting the water pressure resistant characteristic of nanotube bank, and ventilative detection gas circuit is equipped with the diverter valve with the parallelly connected junction of waterproof detection gas circuit, and the diverter valve is used for switching the air current to lead to ventilative detection gas circuit or waterproof detection gas circuit.
has the advantages that: can carry out the switching of air current between ventilative detection gas circuit and waterproof detection gas circuit through the diverter valve, make whole nanotube bundle measuring device can detect nanotube bundle's gas permeability, can detect nanotube bundle's water pressure resistance ability again.
further, waterproof detection module is including holding the water cavity, holds the water cavity and has the water filling port, and sealing installation has a sealing structure on the water filling port, holds the bottom of water cavity and is equipped with the intercommunicating pore that link up the chamber wall, sealing connection has nanotube bundle on the intercommunicating pore, nanotube bundle has the passageway of intercommunication intercommunicating pore and holding water cavity inner chamber, holds still to be provided with the air supply joint that is used for connecting high pressurized air source on the water cavity.
Has the advantages that: the nanotube bundle is hermetically arranged in the communicating hole, so that the waterproof breathable film in the nanotube bundle cuts off the channel, namely, the water containing cavity is separated from the outside, then a certain amount of water is added into the water containing cavity, and the water surface completely submerges the waterproof breathable film of the nanotube bundle; the water filling port is sealed, then the high-pressure air source is connected through the air source connector to pressurize the water containing cavity, and whether water leakage happens to the lower side of the communicating hole is detected. The waterproof detection module avoids the impact of water on the waterproof breathable film of the nanotube bundle in the use process, ensures the detection accuracy, and has simple structure and convenient use.
Furthermore, the water containing cavity is a cylindrical cavity, and an opening at the upper end of the cylindrical cavity forms the water injection port.
has the advantages that: the water can be injected into the water containing cavity conveniently.
Preferably, the communication hole extends vertically, and the channel of the nanotube bundle is parallel to the axis of the communication hole.
Has the advantages that: therefore, when the waterproof breathable film leaks, leaked water can be directly observed, and the water leakage time of the waterproof breathable film can be conveniently and quickly known.
Drawings
Fig. 1 is a schematic diagram of a detection gas circuit of the nanotube bundle detection device provided by the present invention;
Fig. 2 is a front view of the nanotube bundle inspection device provided in the present invention;
Fig. 3 is a left side view of the nanotube bundle inspection device provided in the present invention;
fig. 4 is a top view of the nanotube bundle inspection device provided in the present invention;
Fig. 5 is a schematic structural diagram of a detection chamber in the nanotube bundle detection device provided by the present invention;
fig. 6 is a schematic structural diagram of the nanotube bundle detected by the nanotube bundle detecting device according to the present invention;
Fig. 7 is a schematic structural diagram of a waterproof detection module in the nanotube bundle detection device provided by the present invention;
Fig. 8 is a bottom view of fig. 7.
description of reference numerals: 1-shell, 2-detection cavity, 3-upper joint, 4-PU tube, 5-plate-through joint, 6-air inlet pressure gauge, 7-power supply main switch, 8-air pump switch, 9-three-core power line, 10-stainless steel waterproof joint, 11-handle, 12-flowmeter, 13-barrel, 14-nanotube bundle, 15-foot shock absorber, 16-pressure release valve, 17-switching valve, 18-pressure retaining valve, 19-regulating valve, 20-mounting hole, 21-power supply module, 22-air pump, 23-air pump fixing frame, 24-lower joint, 25-seat plate, 26-front side plate, 27-left side plate, 28-top plate, 29-air outlet pressure gauge, 30-channel, 31-sealing ring, 32-a central support, 33-an end cover, 34-a nut body, 35-a waterproof breathable film, 36-a water pressure resistant pressure gauge, 37-a water containing cavity, 38-an air source connector, 39-a sealing cover, 40-a sealing ring groove, 41-a communication hole and 42-a pressure detection device connector.
Detailed Description
The following describes embodiments of the present invention with reference to the accompanying drawings.
The utility model provides a specific embodiment of nanotube bundle measuring device, as shown in fig. 2 to fig. 4, including casing 1, the air pump 22 of setting in casing 1 and the power module 21 that is used for supplying power to air pump 22. The shell 1 is of a box-type structure, handles 11 are arranged on two sides of the shell 1 to facilitate carrying and carrying of operators, and the bottom of the shell 1 is provided with a support leg damper 15 to enable the whole nanotube bundle measuring device to be more stable in placement; the air pump 22 is a micro vacuum pump and is fixed in the housing 1 through an air pump fixing frame 23. An air pump switch 8 for controlling the opening and closing of the air pump 22 is arranged on a left side plate 27 of the shell 1, and a power supply main switch 7 for controlling the opening and closing of the power supply module 21 and a stainless steel waterproof joint 10 for the three-core power line 9 of the power supply module 21 to penetrate are further arranged. The air pump switch 8 and the power main switch 7 are both arranged with the left side plate 27 exposed, so as to be convenient for the operation of the operator.
a measuring gas path for detecting the ventilation and water pressure resistance of the nanotube bundle is further arranged in the shell 1, and the measuring gas path is communicated with a gas outlet of the air pump 22. Specifically, as shown in fig. 1, 2 and 4, a regulating valve 19 and a pressure retaining valve 18 are connected in series to the measurement gas path in sequence. Wherein the regulating valve 19 and the pressure retaining valve 18 are both provided on the front side plate 26 of the casing 1, while the operation knobs of the regulating valve 19 and the pressure retaining valve 18 are exposed outside the front side plate 26 for the operation of the operator, and the regulating valve 19 and the pressure retaining valve 18 are arranged side by side on the front side plate 26.
Seven groups of ventilation detection modules which are connected in parallel are serially arranged on the measuring gas circuit at the downstream of the pressure retaining valve 18, and a gas inlet pressure gauge 6 is arranged on the measuring gas circuit at the downstream of the pressure retaining valve 18 and at the upstream of the ventilation detection modules; an air outlet pressure gauge 29 is arranged on the measuring air path at the downstream of the air permeability detection module, and the air outlet pressure gauge 29 and the air permeability detection module form an air permeability detection air path; a pressure release valve 16 is further arranged on the measuring air path at the downstream of the air outlet pressure gauge 29, the pressure release valve 16 is provided with two interfaces of air permeability pressure release/water resistance pressure maintaining and water pressure resistance pressure release/air permeability pressure maintaining, and the pressure release valve 16 is also arranged on the front side plate 26 and is arranged side by side with the regulating valve 19 and the pressure maintaining valve 18. Wherein, the manometer 6 of admitting air and the manometer 29 of giving vent to anger are all installed on the roof 28 of casing 1, and the manometer 6 of admitting air is used for detecting ventilative detection module's the inlet pressure, and the manometer 29 of giving vent to anger is used for detecting ventilative detection module's the pressure of giving vent to anger. In other embodiments, the relief valve 16, the regulating valve 19, and the pressure retaining valve 18 may be provided on the left side plate 27.
The measurement gas circuit further comprises a waterproof detection gas circuit connected with the breathable detection gas circuit in parallel, the waterproof detection gas circuit comprises a waterproof detection module and a water pressure resistant pressure gauge 36, a switching valve 17 is arranged at the parallel intersection of the breathable detection gas circuit and the waterproof detection gas circuit, and the switching valve 17 is used for switching gas flow to the breathable detection gas circuit or the waterproof detection gas circuit. The switching valve 17 is provided downstream of the intake pressure gauge 6 and upstream of the ventilation detection module, and is mounted on the front side plate 26 in parallel with the relief valve 16, the regulating valve 19, and the pressure retaining valve 18, but the switching valve 17 may be provided on the left side plate 27.
Each set of ventilation detection module comprises a detection cavity 2 and a flow meter 12 communicated with the detection cavity 2, the detection cavity 2 is used for installing the nanotube bundle, and the flow meter 12 is located at the downstream of the nanotube bundle when in use. The specific structure of the detection chamber 2 is shown in fig. 5, the detection chamber 2 includes a cylinder 13, and an upper joint 3 and a lower joint 24 detachably connected to the upper end and the lower end of the cylinder 13, respectively, a mounting hole 20 for mounting a nanotube bundle is provided in the cylinder 13, and the mounting hole 20 is a threaded hole. In order to facilitate the detachment and installation of the upper joint and the lower joint, the upper joint 3 and the lower joint 24 are connected with two ends of the cylinder body 13 in a threaded connection mode. In this embodiment, the structure of top connection 3 and lower clutch 24 is the same, and whole detection chamber 2 is symmetrical about the axis of barrel 13, and when installing nanotube bundle, no matter can pack into from the upper end of barrel 13 or the lower extreme homoenergetic of barrel 13, and can stably fix in barrel 13, and the commonality is strong to the kind of manufacture that has reduced the joint, and then has practiced thrift manufacturing cost. During specific installation, after the upper joint 3 is in threaded connection with the upper end of the cylinder body 13 and is connected with the plate penetrating joint 5 fixed on the top plate 28 through the PU pipe 4, after the lower joint 24 is in threaded connection with the lower end of the cylinder body 13, an annular groove is formed between the lower joint 24 and the lower end face of the cylinder body 13 to clamp the top plate 28 of the shell body 1 tightly, and therefore fixed connection between the detection cavity 2 and the shell body 1 is achieved.
The detection cavities 2 of the seven groups of ventilation detection modules are arranged in two rows on the top plate 28, the detection cavities 2 in each row are arranged at intervals along the left-right direction of the shell, and the detection cavities 2 in two adjacent rows are staggered from each other along the front-back direction of the shell, so that the installation space on the top plate 28 is fully utilized. The flow meters 12 of the seven sets of air permeability detection modules are arranged side by side on the front side plate 26, and the display portions of the flow meters 12 are all exposed out of the front side plate 26 for easy observation by an operator.
As shown in fig. 2, 7 and 8, the waterproof detection module includes a water containing cavity 37 fixed on the seat plate 25, the water containing cavity 37 is a cylindrical cavity with an open upper end for containing water used for detecting the water pressure resistance of the nanotube bundle 14, and the open upper end forms a water injection port. An air source joint 38 and a pressure detection device joint 42 are arranged on the side wall of the cylindrical cavity, and a sealing cover 39 is hermetically arranged at the opening at the upper end of the cylindrical cavity. Specifically, a sealing ring groove 40 is arranged on the inner wall surface of the upper end of the cylindrical cavity, and when the sealing cover 39 is inserted into the opening in the cylindrical cavity, the sealing ring groove 40 ensures that the opening is hermetically sealed. Seven communicating holes 41 are further formed in the bottom wall of the cylindrical cavity, the seven communicating holes 41 extend vertically, one of the seven communicating holes 41 is located in the center, the other six communicating holes are evenly distributed in the circumferential direction of the center communicating hole, and the communicating holes 41 are threaded holes.
In the present embodiment, the nanotube bundle is provided as a prior art, and the specific structure thereof is as shown in fig. 6, the nanotube bundle 14 includes a nut body 34 having an external thread section, a sealing ring 31 is mounted on an end portion of the thread section on an outer periphery of the nut body 34, and the nanotube bundle 14 is also mounted in the mounting hole 20 of the detection chamber 2 or the communication port 41 in the water containing chamber 37 through the nut body 34 in a sealing manner. The nut body 34 has a vertically through channel 30 therein, and the channel 30 is substantially coaxial with the mounting hole 20 or the communication hole 41 when the nanotube bundle 14 is mounted in the detection chamber 2 or the water containing chamber 37, respectively. The nano tube bundle 14 further comprises a waterproof breathable film 35, the waterproof breathable film 35 is injected into the nut body 34 to block the channel 30, and a central support 32 for supporting the middle position of the waterproof breathable film 35 is further arranged in the channel 30 in the nut body 34. The central support 32 is fixedly connected to the inner wall of the channel 30 by a plurality of legs arranged at circumferentially spaced intervals. The nanotube bundle 14 further includes an end cap 33 mounted on the upper end of the nut body 34, and a plurality of radial through holes (i.e. the positions indicated by the starting ends of the arrows in the figure) are formed on the circumferential wall of the end cap 33 to ensure that the channel 30 is communicated with the water containing cavity 37, so that if the nanotube bundle 14 leaks water during the detection process, the water in the water containing cavity 37 can pass through the path indicated by the arrows.
when the air permeability of the nanotube bundle is detected, the pressure retaining valve 18 is adjusted to be in a conducting state, the switching valve 17 is adjusted to be at one side of the air permeability, and the pressure release valve 16 is adjusted to be at one side of the air permeability pressure release/water pressure resistance pressure retaining; then, respectively installing 7 nanotube bundles in 7 detection cavities 2, and screwing an upper joint 3 of each detection cavity 2; after checking, connecting the three-core power line 9 with a 220V power supply, then sequentially opening a main power switch 7 and an air pump switch 8, starting pressurization, slowly rotating an adjusting valve 19, observing flow values of 7 flowmeters, stopping operating the adjusting valve 19 when the flow values reach 450ml/min, recording pressure values of an air inlet pressure gauge 6 and an air outlet pressure gauge 29 at the moment, and stopping testing if the difference value of the two pressure values is less than 7kPa (at the moment, judging that the flow is more than 450ml/min if the pressure is continuously increased in the follow-up process); slowly rotating the regulating valve 19 again, observing the two pressure meters simultaneously, stopping the test when the pressure difference value of the front pressure meter and the rear pressure meter is equal to 7kPa, and recording the display value of the flow meter at the moment; when the air permeability is more than or equal to 450ml/min (namely the difference value between the two pressure gauges is less than or equal to 7 kPa), the nanotube bundle is judged to be qualified.
When the water pressure resistance of the nanotube bundle is detected, the pressure retaining valve 18 is adjusted to be in a conducting state, the switching valve 17 is adjusted to be at one side of the water pressure resistance, and the pressure release valve 16 is adjusted to be at one side of the air permeability pressure release/water pressure resistance pressure retaining; respectively installing 7 nanotube bundles in the communication holes 41, and then connecting a water pressure resistant pressure gauge 36 to a joint 42 of the pressure detection device; adding a certain amount of water into the water containing cavity 37, and making the water surface completely submerge the nanotube bundle 14, of course, preferably, making the water surface also submerge the pressure detection device joint 42, screwing the sealing cover 39 on the upper opening of the water containing cavity 37 to close the water injection port; then connecting the air source connector 38 with the air pump 22, connecting the three-core power line 9 with a 220V power supply after checking, then sequentially opening the main power switch 7 and the air pump switch 8, starting to charge the water containing cavity 37, slowly rotating the regulating valve 19, observing the pressure value detected by the water pressure resistant pressure gauge 36, stopping pressure application when the pressure value is slowly increased to 0.03MPa, maintaining the pressure for 30s, and observing whether water stains or water drops are separated from the lower side surface of the waterproof breathable film 35 in the channel 30 at the bottom of the water containing cavity 37; if no water leakage phenomenon is found at 0.03MPa, further inflating and pressurizing to raise the pressure value to 0.05MPa, stopping pressurizing again, maintaining the pressure for 30s, and observing whether water stains or water drops are separated from the lower side surface of the waterproof breathable film in the channel from the bottom of the water cavity; and by analogy, slowly increasing the gas pressure, sequentially increasing the pressure values to 0.06MPa, 0.065MPa and 0.07MPa, respectively waiting for 30s, and observing whether water stains or water drops are precipitated on the lower side surface of the waterproof breathable film in the channel. And if the water leakage phenomenon is found on the lower side surface of the waterproof breathable film, stopping the test and recording the test pressure data. In this example, the waterproof qualification standard of the nanotube bundle is: if the pressure is less than or equal to 0.06MPa, water leakage is judged to be unqualified.
In the above embodiments, the upper and lower joints of the detection chamber are the same, and in other embodiments, the upper and lower joints of the detection chamber may have different structures.
In the above embodiments, the upper joint and the lower joint of the detection chamber are both detachably connected to the end of the detection chamber cylinder, and in other embodiments, one of the upper joint and the lower joint is detachably connected to the end of the detection chamber cylinder.
In the above embodiment, the ventilation detection modules are provided with seven, in other embodiments, if the number of the nanotube bundles detected at one time is small, two, three, four, five, and six nanotube bundles may be provided, and of course, if the number of the nanotube bundles detected at one time is large, the ventilation detection modules may be provided with more than seven.
in the above embodiments, the housing is a box-type housing, and in other embodiments, the housing may also be other types of housings, such as a frame-shaped housing, a U-shaped housing, or a cylindrical housing.
in the above embodiments, the flow meter and the detection chamber are separately arranged, and in other embodiments, the flow meter and the detection chamber may be made into an integrated structure as long as the flow meter is ensured to be located at the downstream of the nanotube bundle.
In the above embodiment, the lower joint is connected to the lower end of the detection cavity cylinder through threads, and a ring groove is formed to clamp the top plate of the shell to realize the fixed connection between the detection cavity and the shell; or a clamp is arranged on the shell to fix the detection cavity on the shell; or a connecting structure is arranged on the detection cavity to fixedly connect the detection cavity with the shell.
certainly, the waterproof detection module is not limited to the above embodiment, for example, the water containing cavity may be spherical, prismatic, or irregular, and the water injection port may be an upper opening or a lateral opening; furthermore, in some embodiments, the upper end of the water containing cavity is a sealing structure, the communication hole at the bottom is used as a water filling port, the nanotube bundle is hermetically installed on the communication hole and at the lower side of the water containing cavity, and is used as a sealing structure. Waterproof detection module can also adopt application publication number be the waterproof detection module in CN108592989A, need additionally set up the mounting structure who is used for installing nanotube bundle this moment, be equipped with on the mounting structure with the intercommunication valve of waterproof detection module's outlet pipe intercommunication and with the bleeder vent of nanotube bundle's passageway intercommunication, waterproof detection module's inlet tube and water pump connection, the hydraulic valve is connected with the air supply articulate, through inflating in the air pump feedwater pipe, whether the bleeder vent department of observing mounting structure leaks.
Or in other embodiments, the holes of the communication hole are provided with connecting holes at intervals along the upper circumference, the nanotube bundle is provided with a connecting flange and is hermetically connected with the connecting flange through a fastener penetrating through the connecting flange and the connecting holes; or in other embodiments, the communication hole and the channel of the nanotube bundle may be arranged non-parallel, for example, the channel of the nanotube bundle is arranged horizontally or obliquely, and if water leaks during the detection process, the leaked water can flow out from the communication hole; alternatively, a moisture detection device may be connected to the communication hole to detect moisture.
In other embodiments, the gas source connector may also be disposed on the cover, preferably at an upper position of the water-containing cavity; the pressure detection device joint can also be arranged at the bottom or the top of the cylindrical cavity.

Claims (10)

1. A nanotube bundle inspection device, comprising:
A housing;
An air pump;
the external power supply connector or the power supply module is used for supplying power to the air pump;
the measuring gas circuit is arranged in the shell and is connected with a gas outlet of the gas pump;
The pressure regulating valve is connected in series on the measuring gas path and is arranged on the shell;
The pressure retaining valve is connected in series on the measuring gas path, is positioned at the downstream of the pressure regulating valve and is arranged on the shell;
The device comprises a shell, a plurality of ventilation detection modules, a pressure retaining valve and a plurality of pressure sensors, wherein the ventilation detection modules are connected in series on a measurement gas path in parallel, are positioned at the downstream of the pressure retaining valve and are used for fixedly mounting nanotube bundles so as to enable the nanotube bundles to be connected on the measurement gas path in series;
The air inlet pressure gauge is connected in series on the measuring air path, is positioned at the upstream of the ventilation detection module, is arranged on the shell and is used for detecting the air inlet pressure of the ventilation detection module;
And the air outlet pressure gauge is connected in series on the measuring air path, is positioned at the downstream of the air-permeable detection module, is arranged on the shell and is used for detecting the air outlet pressure of the air-permeable detection module.
2. The nanotube bundle inspection device of claim 1, wherein: the ventilative detection module is including detecting chamber and flowmeter, detects the chamber and is used for installing nanotube bundle, and the flowmeter is in nanotube bundle downstream for show the gas flow through nanotube bundle, detect the chamber and include the barrel and install top connection and the lower clutch at both ends about the barrel, upper and lower clutch is used for being connected with the measurement gas circuit, at least one demountable installation in the upper and lower clutch at barrel tip.
3. The nanotube bundle inspection device of claim 2, wherein: the upper joint and the lower joint have the same structure and can be detachably arranged at two ends of the cylinder body.
4. The nanotube bundle inspection device of claim 2, wherein: the lower joint is connected to the lower end of the barrel through threads, and the lower joint and the barrel clamp a top plate of the shell to fixedly connect the detection cavity and the shell.
5. The nanotube bundle inspection device of any one of claims 2-4, wherein: the casing is box casing, detects the chamber fixed mounting on the roof of box casing, and the flowmeter is installed on the preceding curb plate of box casing, and the display part of flowmeter exposes outside the preceding curb plate.
6. the nanotube bundle inspection device of any one of claims 2-4, wherein: the shell is a box-type shell, the air inlet pressure gauge and the air outlet pressure gauge are installed on a top plate of the shell, and the regulating valve and the pressure retaining valve are installed on a front side plate of the box-type shell.
7. The nanotube bundle inspection device of claim 1, wherein: ventilative detection module and the manometer of giving vent to anger constitute ventilative detection gas circuit, measure the gas circuit and still include the waterproof detection gas circuit parallelly connected with ventilative detection gas circuit, waterproof detection gas circuit includes waterproof detection module and water-fast pressure gauge, and waterproof detection module is used for detecting the water-fast pressure characteristic of nanotube bundle, and the parallelly connected junction of ventilative detection gas circuit and waterproof detection gas circuit is equipped with the diverter valve, and the diverter valve is used for switching the air current to lead to ventilative detection gas circuit or waterproof detection gas circuit.
8. The nanotube bundle inspection device of claim 7, wherein: waterproof detection module holds the water cavity body including holding, and it has the water filling port to hold the water cavity body, and seal mounting has a sealing structure on the water filling port, and the bottom of holding the water cavity body is equipped with the intercommunicating pore that link up the chamber wall, sealing connection has nanotube bundle on the intercommunicating pore, nanotube bundle has the passageway of intercommunication intercommunicating pore and holding the water cavity inner chamber, holds still to be provided with the air supply joint that is used for connecting high pressurized air source on the water cavity body.
9. The nanotube bundle inspection device of claim 8, wherein: the water containing cavity is a cylindrical cavity, and an opening at the upper end of the cylindrical cavity forms the water injection port.
10. The nanotube bundle inspection device of claim 8 or 9, wherein: the intercommunicating pore extends vertically, and the channel of the nanotube bundle is parallel to the axis of the intercommunicating pore.
CN201920587002.3U 2019-04-26 2019-04-26 Nanotube bundle detection device Active CN209764359U (en)

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