CN210005396U - Temperature control flow guide device and gas permeation testing system - Google Patents
Temperature control flow guide device and gas permeation testing system Download PDFInfo
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- CN210005396U CN210005396U CN201920299996.9U CN201920299996U CN210005396U CN 210005396 U CN210005396 U CN 210005396U CN 201920299996 U CN201920299996 U CN 201920299996U CN 210005396 U CN210005396 U CN 210005396U
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Abstract
The invention provides temperature control diversion devices and a gas permeation test system, wherein temperature control diversion devices comprise diversion cabins, the diversion cabins are of hollow structures with openings at two ends, the diversion cabins are symmetrically arranged in a sealable environment cabin, heating elements and refrigerating elements are arranged on the diversion cabins, th airflow generating devices and second airflow generating devices are further communicated on the diversion cabins, the th airflow generating devices and the second airflow generating devices are symmetrically arranged on the diversion cabins, and the th airflow generating devices and the second airflow generating devices are used for correspondingly sucking th airflows and second airflows of the diversion cabins out and blowing the airflows to the environment cabin, so that the th airflows and the second airflows circularly flow between the diversion cabins and the environment cabin.
Description
Technical Field
The disclosure belongs to the field of material detection instruments, and particularly relates to temperature control flow guide devices and a gas permeation test system.
Background
The statements in this section merely provide background information related to the present disclosure and may not necessarily constitute prior art.
The environmental temperature is important test parameters in the test process of gas permeability instruments such as a differential pressure method gas permeameter, an oxygen transmission rate tester, a water vapor transmission rate tester and the like, so that the control of the test environmental temperature is important functions of the instruments.
The inventor finds that the air flow generated by the existing temperature control device has poor fluidity in an environment bin of the ventilating instrument, so that the control efficiency of the temperature around the sample in the ventilating instrument is low, and further the temperature controllability around the sample in the ventilating instrument is poor, so that the test data of the ventilating instrument can greatly fluctuate finally, and particularly, the efficient regulation of the environment temperature of all samples is difficult to guarantee when a plurality of samples are tested simultaneously.
In addition, when the pressure difference method gas permeameter, the oxygen permeability tester, the water vapor permeability tester and other gas permeable instruments are tested, the stability of the pressure regulation of the sample side is directly related to the stability of the test result, the traditional pressure regulation mode is that gas storage tanks are connected to a test cavity at the sample side, and the pressure of the gas storage tanks is controlled to control the upper cavity pressure.
SUMMERY OF THE UTILITY MODEL
In an th aspect of the present disclosure, temperature-controlled air-guiding devices are provided, which enable efficient temperature regulation within an environmental chamber.
The temperature control flow guide device of the th aspect of the disclosure has the technical scheme that:
the kind of control by temperature change guiding device of this disclosure includes:
the air guide cabin is of a hollow structure with two open ends, the air guide cabin is symmetrically arranged inside the sealable environment cabin, the air guide cabin is provided with a heating element and a refrigerating element, the air guide cabin is also communicated with an th air flow generating device and a second air flow generating device, the th air flow generating device and the second air flow generating device are symmetrically arranged on the air guide cabin, and the th air flow generating device and the second air flow generating device are used for correspondingly sucking out th air flow and second air flow of the air guide cabin and blowing the th air flow and the second air flow to the environment cabin, so that the th air flow and the second air flow circularly flow between the air guide cabin and the environment cabin.
In a second aspect of the present disclosure, gas pressure control devices are provided, which are capable of improving pressure regulation efficiency.
The technical scheme of the gas pressure control devices of the second aspect of the disclosure is as follows:
the kind of gas pressure control device of this disclosure includes:
the air inlet pipeline is communicated with an air source and is provided with an air inlet valve;
the exhaust pipeline is communicated with the th negative pressure device, and an exhaust valve is arranged on the exhaust pipeline;
the air inlet pipeline and the exhaust pipeline are converged to form a main pipeline, and the main pipeline is communicated with the test cavity; a pressure sensor is arranged on the main pipeline;
the air inlet valve, the exhaust valve and the pressure sensor are all connected with the second microprocessor; the pressure sensor is used for detecting the pressure value in the test cavity in real time and transmitting the pressure value to the second microprocessor; and the second microprocessor is used for comparing the received pressure value with a given pressure value and controlling the on-off of the air inlet valve and the air outlet valve.
In a third aspect of the present disclosure, gas permeation testing systems are provided, which can improve the accuracy of the test results.
The technical scheme of the air permeability detection systems of the third aspect of the disclosure is as follows:
an air permeability detection system, comprising:
a sealable environmental chamber;
the environment bin is internally provided with the temperature control flow guide device;
or/and the environment bin is internally provided with the gas pressure control device.
The beneficial effects of this disclosure are:
(1) the gas flow in kinds of temperature control guiding devices of this disclosure is according to the guiding flow of guiding flow storehouse, adjusts the temperature in the environmental chamber fast through the gas flow.
(2) According to the gas pressure control device, the pressure value in the test cavity detected by the pressure sensor is compared with the given pressure value by the second microprocessor, if the pressure value is smaller than the given pressure value, the air inlet valve is controlled to be opened, so that gas in the gas source enters the test cavity, the air inlet valve is controlled to be closed until the pressure value in the test cavity reaches the given pressure value, if the pressure value is larger than the given pressure value, the exhaust valve is controlled to be opened, the vacuum generator is controlled to exhaust air, and the exhaust valve is controlled to be closed until the pressure value in the test cavity reaches the given pressure value, so that the pressure adjusting efficiency and the stability of the.
(3) The gas permeability detecting system that has of this disclosure when having control by temperature change guiding device or/gas pressure controlling means, sample automatic clamping structure still has, the automation that has realized the sample like this compresses tightly and automatic business turn over environment storehouse, it is sealed good to realize the sample through both relative motion in test chamber of drive arrangement drive and second test chamber, it sends to compress tightly degree , the stability and the detection precision of test data have been improved, the automation of whole clamping process has been realized, the efficiency of clamping sample has been improved, and easy and simple to handle.
Drawings
The accompanying drawings, which form a part hereof , are included to provide a further understanding of the disclosure, and are included to explain the exemplary embodiments and the description of the disclosure and not to limit the disclosure.
Fig. 1 is a schematic structural diagram of temperature-controlled air guiding devices provided in the embodiment of the disclosure.
Fig. 2 is a schematic view of an overall structure of temperature-controlled flow-guiding devices provided in the embodiment of the disclosure.
Fig. 3 is a schematic structural diagram of gas pressure control devices provided by the embodiment of the disclosure.
Fig. 4 is a front view of an automatic specimen clamping structure in permeability detection systems provided by the embodiment of the disclosure.
Fig. 5 is a left side view of an automatic specimen clamping structure in permeability detection systems provided by the embodiment of the disclosure.
Fig. 6 is a left side view of the second testing chamber in the automatic sample clamping structure of the permeability testing systems provided by the embodiment of the disclosure.
Fig. 7 is a front view of an automatic specimen clamping structure in another types of permeability detection systems provided in the embodiments of the present disclosure.
Fig. 8 is a left side view of an automatic specimen clamping structure in another types of permeability detection systems provided in the embodiments of the present disclosure.
The air conditioner comprises a shell, a fan, an environment bin, a flow guide bin, a temperature sensor, a fan , a fan , a refrigerating element, a cylinder I, a cylinder II, a cylinder 4, a sealing ring 2, a sample 2, a test chamber 6, a test chamber , a cylinder II, a slide block 2, a slide block 10, a slide block 2, a slide block 11, a slide block 3, a slide block , an air inlet pipeline 3, an air outlet pipeline 4, a general pipeline 5, an air inlet valve 6, an air outlet valve 7, a negative pressure device 8, a pressure sensor 9, a temperature sensor , a fan , a heat sink , a refrigerating element 6, a temperature sensor 7, a temperature sensor , a fan , an air flow 1, a heat sink 388, a heat sink , a fan , a cooling element 1, a cooling element 7, a second heat sink , a screw 2, a cylinder I, a cylinder II, a second fixing plate 2-3, a sample 2-6, a test chamber.
Detailed Description
It is noted that the following detailed description is exemplary and is intended to provide further explanation of the disclosure at unless otherwise indicated all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs.
It is noted that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of example embodiments according to the present disclosure. As used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, and it should be understood that when the terms "comprises" and/or "comprising" are used in this specification, they specify the presence of stated features, steps, operations, devices, components, and/or combinations thereof, unless the context clearly indicates otherwise.
Interpretation of terms:
an environment bin: the air flow or the air pressure or the temperature or the humidity can be controlled.
Example
In this embodiment, the th airflow generating device and the second airflow generating device are implemented by fans.
It should be noted that the airflow generating device can be implemented by other existing structures.
The kinds of control by temperature change guiding devices of this embodiment includes:
the air guide cabin is of a hollow structure with two open ends, the air guide cabin is symmetrically arranged inside the sealable environment cabin, the air guide cabin is provided with a heating element and a refrigerating element, the air guide cabin is also communicated with an th air flow generating device and a second air flow generating device, the th air flow generating device and the second air flow generating device are symmetrically arranged on the air guide cabin, and the th air flow generating device and the second air flow generating device are used for correspondingly sucking out th air flow and second air flow of the air guide cabin and blowing the th air flow and the second air flow to the environment cabin, so that the th air flow and the second air flow circularly flow between the air guide cabin and the environment cabin.
As shown in fig. 1 and 2, the diversion bin 1-2 is connected with th cooling fins 1-5, th cooling fins 1-5 are arranged in an environment bin 1-11, a refrigerating element 1-6 and a heating element 1-10 are arranged on the diversion bin 1-2, airflow generated by the refrigerating element 1-6 and the heating element 1-10 enters the diversion bin 1-2 through diffusion, a th fan 1-4 is arranged on the diversion bin 1-2, and a th fan 1-4 is used for sucking out the airflow of the diversion bin and blowing the airflow to the environment bin 1-11, so that the airflow between the diversion bin 1-2 and the environment bin 1-10 circularly flows.
The refrigeration element and the heating element are both connected with the th microprocessor, the th microprocessor is connected with the temperature sensors 1-3, the temperature sensors are used for detecting the temperature in the environmental chamber and transmitting the temperature to the th microprocessor, and the th microprocessor further controls the working states of the refrigeration element and the heating element.
In , two temperature sensors are disposed in the environmental chamber and are fixed to the test chamber and the second test chamber, respectively.
In an alternative embodiment, temperature sensors are located in the environmental chamber and are attached to the test chamber or the second test chamber.
In the specific implementation, the temperature sensor is arranged around the test cavity, the air temperature around the th test cavity and the second test cavity can be detected in a fixing or suspending mode, the height of the temperature sensor is between the th test cavity and the second test cavity, the optimal scheme is the height of a sample when the instrument works, and the temperature sensor is arranged in the center of the th test cavity and the second test cavity.
In the embodiment, the cooling element 1-6 has a second heat sink 1-7 mounted thereon.
In another embodiment, the cooling element 1-6 has a second heat sink 1-7 with a second fan 1-8 mounted thereon.
In another embodiment, the heating element is an electrical heating block.
The refrigerating element is a refrigerating semiconductor block or a refrigerating pipe.
Specifically, a refrigerant is provided in the refrigerant pipe, and the refrigerant absorbs heat by evaporation to cool. The refrigeration is realized by utilizing evaporation, compression, condensation and throttling.
The refrigeration element can also be realized by adopting a refrigeration form for an air conditioner.
In the specific implementation, the diversion bin comprises a horizontal bin, an th vertical bin and a second vertical bin, wherein the end of the th vertical bin is communicated with the horizontal bin, the end of the second vertical bin is of an open structure and is a th air inlet, the end of the second vertical bin is communicated with the horizontal bin, and the end of the second vertical bin is of an open structure and is a second air inlet.
In another embodiment, the horizontal bin is disposed on the inside of the top wall of the environmental bin and the vertical bin and the second vertical bin are disposed on the inside of the two walls connected to the top wall, respectively.
In an alternative embodiment, the horizontal bin is disposed on the centerline of the inside of the top wall of the environmental bin, and the th vertical bin and the second vertical bin are disposed on the centerlines of the inside of the two walls connected to the top wall, respectively.
For example, as shown in fig. 1, the diversion warehouse surrounds the left and right sides of the environmental warehouse and the three sides of the back side of the closed cavity, the diversion warehouse at the two sides of the environmental warehouse is provided with a heating element, such as a heating semiconductor block, the diversion warehouse at the back side of the environmental warehouse is provided with a cooling element, the airflow in the diversion warehouse and the environmental warehouse of the equipment is exchanged through the air opening of the diversion warehouse and the th cooling fin, and the airflow direction is as shown in fig. 1.
It should be noted that the structure of the diversion bin can also be in other hollow structure forms, and can be a cylindrical hollow structure, or a cuboid hollow structure, or a hollow structure with other shapes, which do not affect the performance of the diversion bin.
Specifically, the two th fans 1-4 suck the air in the diversion bin 1-2 out of the diversion bin 1-2, blow the air to the environment bin 1-11, and gradually diffuse the air to the environment bin 1-11, and the air is divided into two paths to enter the air ports 1-12 at two sides, enters the th cooling fins 1-5 in the diversion bin along the direction indicated by an arrow because of the air circulation requirement, and then is sucked out by the th fans 1-4 to blow the air to the environment bin 1-11.
Therefore, the airflow between the diversion bin and the environment bin circularly flows, the air is used as a carrier for transferring heat and humidity, and the airflow flows through the range , so that the temperature control precision and efficiency of the environment bin are improved.
The temperature sensor of this embodiment detects the temperature value in real time, and when the temperature is less than the set temperature value, th microprocessor control heating element heating, and when the temperature is higher than the set temperature value, th microprocessor control refrigeration element refrigeration, and in the temperature control's in-process, the air current straight loop in environment storehouse and diversion storehouse.
Example two
As shown in fig. 3, the kinds of gas pressure control devices of the present embodiment include:
the air inlet pipeline 3 is communicated with an air source, and an air inlet valve 6 is arranged on the air inlet pipeline 3;
the exhaust pipeline 4 is communicated with an th negative pressure device 8, and an exhaust valve 7 is arranged on the exhaust pipeline 4;
the air inlet pipeline 3 and the exhaust pipeline 4 are converged to form a main pipeline 5, and the main pipeline 5 is communicated with the test cavity; a pressure sensor 9 is arranged on the main pipeline 5;
the air inlet valve, the exhaust valve and the pressure sensor are all connected with the second microprocessor; the pressure sensor is used for detecting the pressure value in the test cavity in real time and transmitting the pressure value to the second microprocessor; and the second microprocessor is used for comparing the received pressure value with a given pressure value and controlling the on-off of the air inlet valve and the air outlet valve.
If the received pressure value is smaller than the given pressure value, the second microprocessor is used for controlling the air inlet valve to be opened, so that the gas in the gas source enters the test cavity, and the air inlet valve is controlled to be closed until the pressure value in the test cavity reaches the given pressure value;
and if the received pressure value is greater than the given pressure value, the second microprocessor is used for controlling the exhaust valve to be opened and the vacuum generator to exhaust air until the pressure value in the test cavity reaches the given pressure value, and the exhaust valve is controlled to be closed.
In particular implementations, the exhaust and intake conduits are connected by a three-way valve .
In particular implementations, the intake and exhaust valves are both check valves .
The th negative pressure device may be a vacuum pump or a vacuum generator or other device capable of vacuum pumping.
In the embodiment, the second microprocessor is used for comparing the pressure value in the test cavity detected by the received pressure sensor with a given pressure value, if the pressure value is smaller than the given pressure value, the air inlet valve is controlled to be opened, so that the gas in the gas source enters the test cavity, and the air inlet valve is controlled to be closed until the pressure value in the test cavity reaches the given pressure value; if the former is larger than the latter, the exhaust valve is controlled to be opened and the vacuum generator exhausts air until the pressure value in the test cavity reaches a given pressure value, and the exhaust valve is controlled to be closed; the efficiency of pressure adjustment and the stability of test result have been improved.
EXAMPLE III
The kinds of permeability detection systems that this embodiment provided include:
a sealable environmental chamber;
the environment bin is provided with a temperature control flow guide device as shown in figures 1 and 2.
Example four
The kinds of permeability detection systems that this embodiment provided include:
a sealable environmental chamber;
the environmental chamber is provided with a gas pressure control device as shown in fig. 3.
EXAMPLE five
In this embodiment, on the basis of the third embodiment or the fourth embodiment, at least stations are arranged in the environmental chamber, and each station is provided with a sample automatic clamping structure.
As shown in fig. 4 and 5, the automatic specimen clamping structure of the present embodiment includes:
test chamber 2-1 and second test chamber 2-6, sample 2-5 is arranged between test chamber 2-1 and second test chamber 2-6, test chamber 2-1 and second test chamber 2-6 are respectively arranged above and below sample 2-5;
before clamping the test sample, the th driving device is used for driving the th test cavity to move upwards, and the second driving device is used for moving the second test cavity along the horizontal direction, so that the th test cavity is separated from the second test cavity and the second test cavity extends out of the environmental chamber;
when a sample is placed in the second test cavity, the second driving device is used for driving the second test cavity to retract into the interior of the environmental chamber, and meanwhile, the th driving device is used for driving the th test cavity to vertically move downwards, so that the th test cavity and the second test cavity are closed to compress the sample.
In the clamping process, the second driving device drives the second test cavity to move along the horizontal direction, and simultaneously, the driving device drives the test cavity to move downwards along the vertical direction by a preset distance so as to close the test cavity and the second test cavity and compress a test sample;
after the test of the sample is finished, the th driving device drives the th test cavity to move upwards for a preset distance along the vertical direction at th, and the second driving device drives the second test cavity to move for a preset distance along the horizontal direction, so that the automatic compaction and the automatic entering and exiting of the sample in the environmental chamber are finally realized.
Wherein, preset distance is the distance that can be preset artificially, and this distance value can make test chamber and the test chamber of second test chamber constitute closed and reach the purpose of compressing tightly the sample simultaneously.
In a specific implementation, the th driving device and the second driving device are both connected with a controller, and the controller is used for respectively outputting control signals to the th driving device and the second driving device.
It should be noted that, when the th driving device and the second driving device are both cylinder structures, the expansion amount of the cylinder structures is fixed or manually preset parameters when the product leaves a factory, and the cylinder structure can work only by opening a switch between the cylinder and an air source when the cylinder structure works.
In this embodiment, a sealing device is further provided between the th test chamber and the second test chamber.
As shown in fig. 4, the sealing means of the present embodiment is a gasket 2-4.
In a specific implementation, the sealing rings 2-4 are arranged on the th test chamber or the second test chamber.
In an alternative embodiment, the sealing device comprises an th sealing element and a second sealing element, the th sealing element and the second sealing element are respectively and correspondingly arranged on the th testing cavity and the second testing cavity, and the th sealing element and the second sealing element are matched to realize the sealing of the test sample.
This embodiment is through setting up sealing device between test chamber and second test chamber for the peripheral sealed degree of sample is even, avoids side gas to get into another side from the peripheral horizontal edge leakage of sample, has improved the sealed reliability of sample, and then has improved test efficiency and precision.
It should be noted that the th test chamber and the second test chamber may be provided with sealing grease at their opposite edges, and the th test chamber and the second test chamber may be sealed with the sealing grease.
In the present embodiment, the th driving device and the second driving device are both realized by using air cylinders.
Specifically, as shown in FIG. 5, the th driving means is implemented by using a cylinder i2-3, the th driving means drives the th test chamber to move in the vertical direction, and the second driving means is implemented by using a cylinder ii2-9, the second driving means drives the second test chamber to move in the horizontal direction.
In order to ensure that the stress of the test sample is uniform when the th test chamber and the second test chamber are in clearance closure, the drive shaft of the th driving device is symmetrically connected with the th test chamber, as shown in fig. 5, the drive shaft of the th driving device can be symmetrically connected with the two ends of the th test chamber, so that the th test chamber is uniformly stressed during the movement process.
It should be noted that the th driving device and the second driving device can be realized by any structures in other existing driving structure forms, such as an electric motor, an electric cylinder or a hydraulic cylinder.
In the present embodiment, for example, the th driving device is realized by using a cylinder i, the second driving device is realized by using a cylinder ii, and the cylinder i and the cylinder ii are fixed on the fixed plates 2-8:
the fixing plates 2-8 are disposed below the second testing chamber 2-6.
Specifically, in order to save the space of the apparatus, the cylinder i2-3 is disposed at both sides of the th test chamber 2-1, and the cylinder i2-3 is connected to the th test chamber 2-1 by means of screws 2-2.
In practical implementation, a sliding device is further arranged between the th fixing plate and the second testing cavity.
The sliding device is used for realizing the horizontal movement of the second test cavity on the th fixing plate.
In a specific implementation, the sliding device can be implemented using existing structures, such as:
the sliding device comprises a guide structure and a sliding structure, the guide structure is arranged on the th fixing plate, the sliding structure is arranged at the bottom end of the second testing cavity, and the sliding structure is used for driving the second testing cavity to horizontally move along the guide structure under the driving of the air cylinder ii.
In this embodiment, the guide structure may be a guide rail, and as shown in fig. 5, the sliding structure is implemented by using sliders 2 to 10.
The structure of the guide rail and the slide blocks 2-10 is small in size, light and convenient, and easy to realize.
In another embodiment, a second negative pressure device is coupled to the second test chamber and configured to suction fit a sample placed on the second test chamber to a surface of the second test chamber.
In an alternative embodiment, a second negative pressure device is connected to the th test chamber and is used for attaching a sample placed on the th test chamber to the th test chamber surface.
Specifically, the second negative pressure device may be a vacuum pump, or may be a vacuum generator or other device capable of vacuum pumping.
The vacuum pump passes through the pipeline and is connected with test chamber or second test chamber, test chamber or second test chamber have the gas pocket, to test chamber or second test chamber evacuation, test chamber or second test chamber surface form gaseous negative pressure region, the test sample that awaits measuring is put test chamber or second test chamber surface, is adsorbed by the negative pressure, experimental laminating is on test chamber or second test chamber surface.
In this embodiment, as shown in fig. 6, the automatic sample clamping structure is disposed in the environmental chamber 1-1, the second testing chamber 2-6 moves along the guide rail and is disposed outside the environmental chamber 1-1 under the driving of the air cylinder ii2-9, the air cylinder ii2-9 brings the second testing chamber 2-6 back into the tester, the negative pressure device is activated to adsorb the sample, the sample is adsorbed and attached to the surface of the second testing chamber 2-6, when the second testing chamber 2-6 is retracted to a position directly below the testing chamber 2-1 in a translational manner, the air cylinder i2-3 brings the testing chamber 2-1 to move downward and close the second testing chamber 2-6, wherein the testing chamber 2-1 is provided with the sealing ring 2-4, and the testing chamber 2-1 and the second testing chamber 2-6 are closed around the sealing ring to compress and seal the sample, and the automatic sample packaging is completed.
It should be noted that the guiding structure may also be a lead screw, and the sliding structure is implemented by a nut.
In an alternative embodiment, when the second driving means is used to drive the second test chamber in the horizontal direction, the second driving means is also a tape guide driving mechanism, and there is no need to provide a sliding means between the th fixing plate and the second test chamber.
Specifically, the belt-guiding driving mechanism can be realized by adopting a belt-guiding air cylinder drive, wherein the belt-guiding air cylinder is provided with two telescopic rods, and is different from a common air cylinder with only telescopic rods.
The driving mechanism with guide can also be realized by an electric cylinder drive with guide.
The specific working principle of the clamping structure of the embodiment is as follows:
the second driving device drives the second testing cavity to move along the horizontal direction, extend out of the testing instrument, place the sample in the second testing cavity, the second driving device drives the second testing cavity to retract into the testing instrument environment bin, and meanwhile, the testing cavity moves vertically downwards to compress the sample, so that the automatic cavity entering, automatic clamping and compressing of the sample are realized;
after the test of the sample is finished, the th driving device drives the th test cavity to move upwards along the vertical direction so as to separate the th test cavity from the second test cavity, the second driving device drives the second test cavity and the sample to extend out of the environmental bin of the test instrument, so that the automatic cavity outlet of the sample can be realized, the sample can be taken away by a tester, and permeability parameters of the sample can be obtained according to the gas quantity penetrating through the sample detected by the tester.
The test chamber and the second test chamber are driven to open and close by the driving device, the test sample is sealed well, the compression degree is , the purposes of stable test data and high detection precision are achieved, the automatic test sample clamping structure achieves the automation of the clamping process of the whole gas permeation test system, the efficiency of clamping the test sample is improved, the automation degree is high, and the operation is simple and convenient.
EXAMPLE six
As shown in FIGS. 7 and 8, in the automatic specimen clamping structure in the gas permeation testing system according to the present embodiment, unlike the fifth embodiment, the cylinder i2-3 is fixed to the second fixing plate 2-11, and the cylinder ii2-9 is fixed to the fixing plate 2-8, wherein the fixing plate 2-8 is disposed below the second testing chamber 2-6, and the second fixing plate 2-11 is disposed above the testing chamber 2-1.
EXAMPLE seven
On the basis of the third embodiment or the fourth embodiment, at least stations are arranged in the environmental bin, and each station is provided with a sample automatic clamping structure.
The device comprises an th test chamber and a second test chamber, wherein a test sample is arranged between the th test chamber and the second test chamber, the th test chamber and the second test chamber are respectively arranged above and below the test sample;
an th driving device connected with the th test cavity;
the second driving device is connected with the second testing cavity;
before a test sample is clamped, the second driving device is used for driving the second testing cavity to move downwards for a second preset distance, and the th driving device is used for driving the th testing cavity to move along the horizontal direction, so that the th testing cavity is separated from the second testing cavity, and the th testing cavity extends out of the environment bin;
when a sample is adsorbed to the th test cavity, the driving device is used for driving the th test cavity to retract into the environmental chamber, and meanwhile, the second test cavity moves vertically upwards for a second preset distance under the driving of the second driving device, so that the th test cavity and the second test cavity are closed to compress the sample.
The second preset distance is an artificially preset distance, and the distance value can enable the test chamber and the test chamber formed by the second test chamber to be closed and achieve the purpose of pressing the test sample.
In a specific embodiment, the top end of the test chamber is provided with a sliding device, and the driving device is used for driving the test chamber to move along the sliding device in the horizontal direction.
The sliding device of this embodiment has the same structure as the sliding device described in the fifth embodiment, and the description thereof will not be repeated.
In an alternative embodiment, the th drive is a tape guided drive.
Specifically, the belt-guiding driving device can be realized by adopting a belt-guiding air cylinder drive, wherein the belt-guiding air cylinder is provided with two telescopic rods, and is different from a common air cylinder with only telescopic rods.
The driving mechanism with guide can also be realized by an electric cylinder drive with guide.
In specific implementation, a sealing device is also arranged between the th test cavity and the second test cavity.
The sealing device of this embodiment has the same structure as that of the sealing device of the fifth embodiment, and the description thereof will not be repeated.
In a specific embodiment, a second negative pressure device is connected to the th test chamber and is used for adsorbing and attaching the test sample placed on the th test chamber to the th test chamber surface.
In an optional embodiment, the second test cavity is connected with a second negative pressure device, and the second negative pressure device is used for attaching the sample placed on the second test cavity to the surface of the second test cavity in an adsorption manner.
Specifically, the second negative pressure device may be a vacuum pump, or may be a vacuum generator or other device capable of vacuum pumping.
The vacuum pump passes through the pipeline and is connected with test chamber or second test chamber, test chamber or second test chamber have the gas pocket, to test chamber or second test chamber evacuation, test chamber or second test chamber surface form gaseous negative pressure region, the test sample that awaits measuring is put test chamber or second test chamber surface, is adsorbed by the negative pressure, experimental laminating is on test chamber or second test chamber surface.
Example eight
In this embodiment, on the basis of the third embodiment or the fourth embodiment, at least stations are arranged in the environmental chamber, and each station is provided with a sample automatic clamping structure.
The sample automatically clamped structure of this embodiment, test chamber and second test chamber set up respectively on the left side and the right side of sample:
in this embodiment, the th driving device and the second driving device are respectively used for correspondingly driving the th test chamber and the second test chamber to move relatively along the horizontal direction and respectively move for corresponding preset distances so as to close the gap between the th test chamber and the second test chamber and compact the test sample;
the th driving device and the second driving device are further used for respectively and correspondingly driving the th testing cavity and the second testing cavity to move back and forth along the horizontal direction and respectively move a third preset distance and a fourth preset distance after the test of the sample is finished so as to open a gap between the th testing cavity and the second testing cavity, and finally, the sample is automatically compressed and automatically enters and exits the environmental chamber.
In a specific implementation, the bottom end of the th test chamber is provided with a sliding device, and the th driving device is used for driving the th test chamber to move along the sliding device in the horizontal direction.
The bottom end of the second testing cavity is provided with a sliding device, and the second driving device is used for driving the second testing cavity to move in the horizontal direction along the sliding device.
In a specific implementation, the th sliding device and the second sliding device can be implemented by adopting the existing structure, such as:
the th slide gear and the second slide gear comprise a guide structure and a slide structure, the guide structure is arranged on the horizontal fixing plate, the slide structure is arranged at the bottom end of the th test cavity, and the slide structure is used for driving the th test cavity to horizontally move along the guide structure under the driving of the th driving device.
The guide structure can adopt a guide rail, and the sliding structure is realized by adopting a sliding block.
Wherein, the structure that the guide rail matches with the slider is small and light, and is easier to realize.
In addition, the guide structure can also adopt a lead screw, and the sliding structure is realized by adopting a nut.
In an alternative embodiment, the th drive is a tape guided drive.
The second drive is a guided drive.
Specifically, the belt-guiding driving device can be realized by adopting a belt-guiding air cylinder drive, wherein the belt-guiding air cylinder is provided with two telescopic rods, and is different from a common air cylinder with only telescopic rods.
The driving mechanism with guide can also be realized by an electric cylinder drive with guide.
In or more embodiments, the sliding device comprises a guiding structure and a sliding structure, the guiding structure is disposed on the horizontal fixing plate, the sliding structure is disposed at the bottom end of the second testing chamber, and the sliding structure is used for driving the testing chamber to move horizontally along the guiding structure under the driving of the driving device.
The guide structure can adopt a guide rail, and the sliding structure is realized by adopting a sliding block.
Wherein, the structure that the guide rail matches with the slider is small and light, and is easier to realize.
In addition, the guide structure can also adopt a lead screw, and the sliding structure is realized by adopting a nut.
Specifically, the belt-guiding driving device can be realized by adopting a belt-guiding air cylinder drive, wherein the belt-guiding air cylinder is provided with two telescopic rods, and is different from a common air cylinder with only telescopic rods.
The driving mechanism with guide can also be realized by an electric cylinder drive with guide.
In specific implementation, a sealing device is also arranged between the th test cavity and the second test cavity.
The sealing device of this embodiment has the same structure as the sealing device of the fifth embodiment, and the description thereof will not be repeated.
In a specific embodiment, a second negative pressure device is connected to the th test chamber and is used for adsorbing and attaching the test sample placed on the th test chamber to the th test chamber surface.
In an optional embodiment, the second test cavity is connected with a second negative pressure device, and the second negative pressure device is used for attaching the sample placed on the second test cavity to the surface of the second test cavity in an adsorption manner.
Specifically, the second negative pressure device may be a vacuum pump, or may be a vacuum generator or other device capable of vacuum pumping.
The vacuum pump passes through the pipeline and is connected with test chamber or second test chamber, test chamber or second test chamber have the gas pocket, to test chamber or second test chamber evacuation, test chamber or second test chamber surface form gaseous negative pressure region, the test sample that awaits measuring is put test chamber or second test chamber surface, is adsorbed by the negative pressure, experimental laminating is on test chamber or second test chamber surface.
Example nine
In this embodiment, on the basis of the third embodiment or the fourth embodiment, at least stations are arranged in the environmental chamber, and each station is provided with a sample automatic clamping structure.
The sample automatically clamped structure of this embodiment includes:
test chamber and second test chamber, wherein a test sample is arranged between the test chamber and the second test chamber, the test chamber and the second test chamber are respectively arranged above and below the test sample, the test chamber is fixed;
the driving device is used for driving the second testing cavity to move upwards for a preset distance along the vertical direction to close the th testing cavity and the second testing cavity and compress a sample, and after the test of the sample is finished, the driving device drives the second testing cavity to move downwards for a fifth preset distance along the vertical direction to open the th testing cavity and the second testing cavity, and finally automatic compression and automatic entering and exiting of the sample in the environmental chamber are achieved.
The fifth preset distance is an artificially preset distance, and the distance value can enable the test chamber and the test chamber formed by the second test chamber to be closed and achieve the purpose of pressing the test sample.
In other embodiments, the test chamber and the second test chamber are arranged opposite to each other up and down, the second test chamber is fixed, the driving device is used for driving the test chamber to move downwards by a preset distance along the vertical direction to close the gap between the test chamber and the second test chamber and compress the sample, and after the test of the sample is finished, the test chamber is driven to move upwards by a second preset distance along the vertical direction to open the gap between the test chamber and the second test chamber, so that the automatic compression and the automatic entering and exiting of the sample in and out of the environmental chamber are finally realized.
In an alternative embodiment, the test chamber and the second test chamber can also be arranged on the left side and the right side of the sample respectively, wherein of the test chamber and the second test chamber is fixed as a fixed chamber, and the other test chamber is a moving chamber, the driving device is used for driving the moving chamber to move towards the fixed chamber for a fifth preset distance to close the test chamber and the second test chamber and compress the sample, and after the test of the sample is finished, the moving chamber is driven to be away from the fixed chamber for the fifth preset distance to separate the test chamber and the second test chamber, so that the automatic compression and the automatic entering and exiting of the sample to and from the environmental chamber are finally realized.
In a specific implementation, the driving means may be implemented using a cylinder.
It should be noted that the driving device is implemented by any types of other existing driving structures, such as an electric motor, an electric cylinder or a hydraulic cylinder.
In specific implementation, a sealing device is also arranged between the th test cavity and the second test cavity.
The sealing device of this embodiment has the same structure as the sealing device of the fifth embodiment, and the description thereof will not be repeated.
In a specific embodiment, a second negative pressure device is connected to the th test chamber and is used for adsorbing and attaching the test sample placed on the th test chamber to the th test chamber surface.
In an optional embodiment, the second test cavity is connected with a second negative pressure device, and the second negative pressure device is used for attaching the sample placed on the second test cavity to the surface of the second test cavity in an adsorption manner.
Specifically, the second negative pressure device may be a vacuum pump, or may be a vacuum generator or other device capable of vacuum pumping.
The vacuum pump passes through the pipeline and is connected with test chamber or second test chamber, test chamber or second test chamber have the gas pocket, to test chamber or second test chamber evacuation, test chamber or second test chamber surface form gaseous negative pressure region, the test sample that awaits measuring is put test chamber or second test chamber surface, is adsorbed by the negative pressure, experimental laminating is on test chamber or second test chamber surface.
Although the present disclosure has been described with reference to specific embodiments, it should be understood that the scope of the present disclosure is not limited thereto, and those skilled in the art will appreciate that various modifications and changes can be made without departing from the spirit and scope of the present disclosure.
Claims (10)
1, kind of control by temperature change guiding device, its characterized in that includes:
the air guide cabin is of a hollow structure with two open ends, the air guide cabin is symmetrically arranged inside the sealable environment cabin, the air guide cabin is provided with a heating element and a refrigerating element, the air guide cabin is also communicated with an th air flow generating device and a second air flow generating device, the th air flow generating device and the second air flow generating device are symmetrically arranged on the air guide cabin, and the th air flow generating device and the second air flow generating device are used for correspondingly sucking out th air flow and second air flow of the air guide cabin and blowing the th air flow and the second air flow to the environment cabin, so that the th air flow and the second air flow circularly flow between the air guide cabin and the environment cabin.
2. The temperature-controlled flow guide device as claimed in claim 1, wherein the flow guide cabin comprises a horizontal cabin, an th vertical cabin and a second vertical cabin, wherein the th vertical cabin is communicated with the horizontal cabin at the end, is open at the end and is a th air inlet, the second vertical cabin is communicated with the horizontal cabin at the end, is open at the end and is a second air inlet.
3. The temperature-controlled deflector of claim 2, wherein said horizontal bin is disposed on the inside of the top wall of the environmental bin, and said th vertical bin and said second vertical bin are disposed on the inside of the two walls connected to said top wall, respectively;
or the horizontal bin is arranged on the central line of the inner side of the top wall of the environmental bin, and the th vertical bin and the second vertical bin are respectively arranged on the central lines of the inner sides of the two walls connected with the top wall.
4. The temperature controlled flow guide device of claim 1, wherein the cooling element and the heating element are both connected to an th microprocessor, the th microprocessor is connected to a temperature sensor, the temperature sensor is used for detecting the temperature in the environmental chamber and transmitting the temperature to a th microprocessor, and the th microprocessor is used for controlling the working state of the cooling element and the heating element;
or the refrigerating element and the heating element are symmetrically arranged on the diversion bin;
or the diversion bin is also internally provided with th radiating fins, and the th radiating fins are connected with the refrigerating element;
or the refrigerating element is also connected with a second cooling fin which is arranged at the outer side of the environmental chamber;
or both the th airflow generating device and the second airflow generating device are fans;
or the heating element is an electrical heating block;
or the refrigerating element is a semiconductor refrigerating block or a refrigerating pipe.
The gas permeation test system of , comprising:
a sealable environmental chamber;
a temperature control flow guide device as claimed in any of claims 1-4 is arranged in the environment bin.
6. The gas permeation testing system of claim 5, further comprising gas pressure control devices comprising:
the air inlet pipeline is communicated with an air source and is provided with an air inlet valve;
the exhaust pipeline is communicated with the th negative pressure device, and an exhaust valve is arranged on the exhaust pipeline;
the air inlet pipeline and the exhaust pipeline are converged to form a main pipeline, and the main pipeline is communicated with the test cavity; a pressure sensor is arranged on the main pipeline;
the air inlet valve, the exhaust valve and the pressure sensor are all connected with the second microprocessor; the pressure sensor is used for detecting the pressure value in the test cavity in real time and transmitting the pressure value to the second microprocessor; and the second microprocessor is used for comparing the received pressure value with a given pressure value and controlling the on-off of the air inlet valve and the air outlet valve.
7. The gas permeation testing system according to claim 5, wherein at least stations are arranged in the environmental chamber, and each station is provided with a specimen automatic clamping structure.
8. The gas permeation testing system according to claim 7, wherein the specimen autoslamping structure comprises:
th test cavity and a second test cavity on two sides of the test sample;
an th driving device connected with the th test cavity;
the second driving device is connected with the second testing cavity;
the driving device and the second driving device are respectively used for driving the test chamber and the second test chamber to move relatively, so that the test chamber and the second test chamber are closed or separated, and the automatic compaction and automatic entering and exiting of the sample in the environmental chamber are realized;
or sample automatically clamped structure includes:
th test cavity and a second test cavity on two sides of the test sample;
any of the test chamber and the second test chamber is fixed as a fixed chamber, and the other is a moving chamber;
and the driving device is used for controlling the driving device to drive the moving cavity and the fixed cavity to be closed or separated, so that the sample is automatically compressed and automatically enters and exits the environmental chamber.
9. The gas permeation testing system of claim 8, wherein a sealing means is further provided between the test chamber and the second test chamber;
or the test chamber is connected with a second negative pressure device which is used for attaching the sample placed on the test chamber to the surface of the test chamber;
or the second test cavity is connected with a second negative pressure device, and the second negative pressure device is used for adsorbing and attaching the sample placed on the second test cavity to the surface of the second test cavity.
10. The gas permeation testing system of claim 8, wherein when the test chamber and the second test chamber are disposed above and below the test specimen, respectively:
before clamping the test sample, the th driving device is used for driving the th test cavity to move upwards, and the second driving device is used for moving the second test cavity along the horizontal direction, so that the th test cavity is separated from the second test cavity and the second test cavity extends out of the environmental chamber;
when a test sample is placed in the second test cavity, the second driving device is used for driving the second test cavity to retract into the environment bin, and meanwhile, the driving device is used for driving the test cavity to vertically move downwards, so that the test cavity and the second test cavity are closed to compress the test sample;
or when the th test chamber and the second test chamber are disposed above and below the test specimen, respectively:
before the test sample is clamped, the second driving device is used for driving the second test cavity to move downwards, the th driving device is used for driving the th test cavity to move along the horizontal direction, so that the th test cavity is separated from the second test cavity, and the th test cavity extends out of the environmental chamber;
when a sample is adsorbed to the th test cavity, the driving device is used for driving the th test cavity to retract into the environment cabin, and meanwhile, the second driving device is used for driving the second test cavity to move vertically upwards, so that the th test cavity and the second test cavity are closed to compress the sample;
or when the th test chamber and the second test chamber are disposed on the left and right sides of the test specimen, respectively:
the driving device and the second driving device are respectively used for correspondingly driving the test chamber and the second test chamber to move relatively along the horizontal direction so as to close the test chamber and the second test chamber and compress the test sample;
the th driving device and the second driving device are further used for correspondingly driving the th testing cavity and the second testing cavity to move back and forth along the horizontal direction respectively after the test sample is tested, so that the th testing cavity and the second testing cavity are separated.
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| CN201920299996.9U CN210005396U (en) | 2019-03-08 | 2019-03-08 | Temperature control flow guide device and gas permeation testing system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916796A (en) * | 2019-03-08 | 2019-06-21 | 济南兰光机电技术有限公司 | Temperature control guiding device, gas pressure control device and gas permeation test system |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109916796A (en) * | 2019-03-08 | 2019-06-21 | 济南兰光机电技术有限公司 | Temperature control guiding device, gas pressure control device and gas permeation test system |
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