CN108594915A - A kind of confined chamber and control method of volume adjustable - Google Patents
A kind of confined chamber and control method of volume adjustable Download PDFInfo
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- CN108594915A CN108594915A CN201810682195.0A CN201810682195A CN108594915A CN 108594915 A CN108594915 A CN 108594915A CN 201810682195 A CN201810682195 A CN 201810682195A CN 108594915 A CN108594915 A CN 108594915A
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- confined chamber
- volume
- confined
- chamber
- elastic membrane
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D27/00—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00
- G05D27/02—Simultaneous control of variables covered by two or more of main groups G05D1/00 - G05D25/00 characterised by the use of electric means
Abstract
The invention discloses a kind of confined chamber of volume adjustable and control methods, including confined chamber and gas compensation device, gas compensation device is arranged on one or more surfaces of confined chamber, wherein, gas compensation device includes orifice plate, pressing plate, driving device and elastic membrane, orifice plate is installed in the arbitrary on one or more surfaces of confined chamber, elastic membrane is arranged on the lateral surface of corresponding orifice plate, and it can be with respect to confined chamber internal expansion or contraction, pressing plate is arranged on the lateral surface of corresponding elastic membrane, driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, elastic membrane is compressed with this to be in contact with orifice plate.The configuration of the present invention is simple, pass through the setting of elastic membrane, when confined chamber internal temperature rises, inflation of elastic membrane, when confined chamber internal temperature declines, elastic membrane is shunk, and changes the volume inside confined chamber with this, so that closed chamber internal volume is changed with the change of test temperature, the precision of detection is effectively improved.
Description
Technical field
The present invention relates to confined chamber technical fields, are confined chamber and the control for being related to a kind of volume adjustable more specifically
Method.
Background technology
In existing automobile all there is the volatilization of harmful substance in the components such as fuel tank, tire, automobile exterior, automobile chassis, when waving
When the concentration of hair property harmful substance is more than a certain range, human body can be damaged, it is therefore desirable to the harmful substance of automobile into
Row collects detection.
However, the existing closed chamber internal volume of evaporation is mostly fixed, it when detecting can not be according to the demand of detection to close
The volume of closed chamber is changed, and when confined chamber internal temperature changes, confined chamber volume can not change, and lead to outside contamination
Gas influences the precision of test, cannot be satisfied the demand detected at various temperature since draught head enters inside confined chamber.
Invention content
It is an object of the invention to overcome drawbacks described above in the prior art, provide one kind can avoid external environment or its
His uncertain factor impacts test result to effectively improve the confined chamber of the volume adjustable of accuracy of detection.
To achieve the above object, the present invention provides a kind of confined chamber of volume adjustable, including confined chamber, the confined chambers
On be provided in gas sampling process to confined chamber inside carry out gas volume compensation gas compensation device, the gas
Body compensation device is arranged on one or more surfaces of confined chamber, the gas compensation device include orifice plate, pressing plate, driving device and
Elastic membrane, the orifice plate are installed in the arbitrary on one or more surfaces of confined chamber, and the elastic membrane is arranged in the outer of corresponding orifice plate
On side, and can be with respect to confined chamber internal expansion or contraction, the pressing plate is arranged on the lateral surface of corresponding elastic membrane, described
Driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, compresses elastic membrane with this and connects with orifice plate
It touches.
Preferably, the driving device is set as pneumatically or electrically or manual driving device.
Preferably, being covered with temperature adjustment or damping chuck outside the confined chamber, the temperature adjustment or damping chuck are provided with
Temperature control or the wet unit of control.
Preferably, being provided with temperature adjustment control unit inside or outside the confined chamber, it is provided on the confined chamber
Closed hatch door.
Preferably, being provided with stirring wind turbine in the confined chamber.
Preferably, the confined chamber is connected with discharge duct, scavenging air valve is provided on the discharge duct.
Preferably, the confined chamber is connected with admission line, be equipped on the admission line inlet air flow gauge or/
And air intake valve.
A kind of control method of the confined chamber for above-mentioned volume adjustable is provided, is included the following steps：
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, temperature control or the control for adjusting temperature adjustment or debugging chuck are wet
Unit adjusts the temperature adjustment control unit inside confined chamber, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, are closed scavenging air valve, are closed scavenging air valve, at this time
Closed chamber internal volume is the geometric volume of confined chamber；
3) driving device resets, and confined chamber internal temperature is risen to t2, the expansion of confined chamber inner air, inflation of elastic membrane
It heaves, confined chamber volume is at this time：The geometric volume of ((273+t2)/(273+t1)) * confined chambers, it is close at a temperature of t2 to obtain
The volume of closed chamber；
4) confined chamber internal temperature is risen into t3 again, confined chamber volume is at this time：((273+t3)/(273+t1))*
The geometric volume of confined chamber, to obtain the volume of confined chamber at a temperature of t3.
A kind of control method of the confined chamber for above-mentioned volume adjustable is provided again, is included the following steps：
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, temperature control or the control for adjusting temperature adjustment or debugging chuck are wet
Unit adjusts the temperature adjustment control unit inside confined chamber, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, are closed scavenging air valve, are closed scavenging air valve, at this time
Closed chamber internal volume is the geometric volume of confined chamber；
3) driving device resets, and opens air intake valve, by admission line and inlet air flow gauge to being passed through inside confined chamber
Clean gas, it is V1 to be passed through gas volume, and confined chamber inner air expands, and elastic membrane heaves expansion, and confined chamber volume is at this time
The geometric volume of V1+ confined chambers；
4) it adjusts temperature adjustment or debugs the temperature control or the wet unit of control of chuck, so that confined chamber internal temperature is risen or fallen and reach
T2, confined chamber inner air expansion or shrinkage, inflation of elastic membrane or contraction, confined chamber volume is the (geometry of V1+ confined chambers at this time
Volume) * (273+t2)/(273+t1).
Compared with prior art, the beneficial effects of the present invention are：
The configuration of the present invention is simple, including confined chamber and in gas sampling process to confined chamber inside carry out gas appearance
The gas compensation device of product compensation, gas compensation device are arranged on one or more surfaces of confined chamber, wherein gas compensation device
Including orifice plate, pressing plate, driving device and elastic membrane, orifice plate is installed in the arbitrary on one or more surfaces of confined chamber, elastic membrane setting
On the lateral surface of corresponding orifice plate, and it can be arranged in corresponding elastic membrane with respect to confined chamber internal expansion or contraction, pressing plate
On lateral surface, driving device is sequentially connected with corresponding pressing plate, to drive moving forward and backward for pressing plate, with this compress elastic membrane with
Orifice plate is in contact, by the setting of elastic membrane, when confined chamber internal temperature rises, and inflation of elastic membrane, the temperature inside confined chamber
When degree declines, elastic membrane is shunk so that the internal capacity of confined chamber changes at a certain temperature, or by into confined chamber
Portion carries out air inlet, changes the volume inside confined chamber with this so that closed chamber internal volume is carried out with the change of test temperature
Change, effectively improves the precision of detection.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is the present invention
Some embodiments for those of ordinary skill in the art without creative efforts, can also basis
These attached drawings obtain other attached drawings.
Fig. 1 is a kind of overall structure diagram of the confined chamber of volume adjustable provided by the invention；
Fig. 2 is the overall structure diagram of the confined chamber of another volume adjustable provided by the invention.
Specific implementation mode
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
In attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is
A part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, those of ordinary skill in the art
The every other embodiment obtained without creative efforts, shall fall within the protection scope of the present invention.
Embodiment one
Referring to FIG. 1, the embodiment provides a kind of confined chamber of volume adjustable, including confined chamber 1 and it is used for
The gas compensation device 2 of gas volume compensation is carried out to confined chamber inside in gas sampling process, gas compensation device 2 is arranged
On one or more surfaces of confined chamber 1, wherein gas compensation device 2 includes orifice plate 3, pressing plate 4, driving device 5 and elastic membrane 6,
Orifice plate 3 is installed in the arbitrary on one or more surfaces of confined chamber 1, and elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3, and can
Opposite 1 internal expansion of confined chamber or contraction, pressing plate 4 are arranged on the lateral surface of corresponding elastic membrane 6, driving device 5 with it is corresponding
Pressing plate 4 be sequentially connected, to drive moving forward and backward for pressing plate 4, elastic membrane 6 is compressed with this and is in contact with orifice plate 3, with reference to
The present embodiment is described in detail in attached drawing.
As shown in Figure 1, be provided on confined chamber 1 in gas sampling process to inside confined chamber 1 carry out gas appearance
Product compensation gas compensation device 2, gas compensation device 2 be installed in confined chamber 1 one or more surfaces on, wherein gas compensation
Device 2 includes orifice plate 3, pressing plate 4, driving device 5 and elastic membrane 6, and orifice plate 3 is installed in the arbitrary on one or more surfaces of confined chamber 1,
Elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3, and can exist with respect to 1 internal expansion of confined chamber or contraction, the setting of pressing plate 4
On the lateral surface of corresponding elastic membrane 6, driving device 5 is sequentially connected with corresponding pressing plate 4, to drive the front and back fortune of pressing plate 4
Row, compresses elastic membrane 6 with this and is in contact with orifice plate 3, pass through the setting of elastic membrane 6, when 1 internal temperature of confined chamber rises, bullet
Property film 6 expand, when 1 internal temperature of confined chamber declines, elastic membrane 6 contraction so that the internal capacity of confined chamber 1 is in specific temperature
Under change, change the volume inside confined chamber 1 with this so that 1 internal capacity of confined chamber with test temperature change into
Row changes, and effectively improves the precision of detection.
In the present embodiment, driving device 5 may be configured as pneumatically or electrically or manual driving device, can according to actual conditions into
Row selection, not the present embodiment is limited.
Preferably, the outer cup of confined chamber 1 is equipped with temperature adjustment or damping chuck 7, temperature adjustment or damping chuck 7 be provided with temperature control or
Wet unit is controlled, by temperature adjustment or the setting of damping chuck 7, the temperature or humidity inside confined chamber 1 is effectively kept, is provided for test
The precision of test is effectively ensured in the test environment of one standard stabiliser.
Preferably, being provided with closed hatch door 15 on confined chamber 1, confined chamber 1 is internally provided with temperature adjustment control unit 8 and stirring
Wind turbine 9 controls to adjust the temperature inside confined chamber 1, test is effectively ensured by the setting of temperature adjustment control unit 8
Precision, it is effectively that the Gas Stirring inside confined chamber 1 is uniform by stirring the setting of wind turbine 9, convenient for the displacement of gas before detection
Confined chamber internal gas concentration is stirred evenly with when sampling.
In the present embodiment, confined chamber 1 is connected with discharge duct 10, and scavenging air valve 11 is provided on discharge duct 10, before detection,
Polluted gas inside confined chamber 1 is discharged, clean free of contamination gas is replaced into, the precision of test is effectively ensured.
A kind of confined chamber of volume adjustable, including following regulating step：
(1) it keeps the closed hatch door 15 of confined chamber 1 to close, opens scavenging air valve 11, adjust the temperature control of temperature adjustment or damping chuck 7
Or the wet unit of control, the temperature adjustment control unit 8 inside confined chamber 1 is adjusted, 1 internal temperature of confined chamber is made to reach t1；
(2) driving device 5 brings into operation, and driving elastic membrane 6 is compressed with 3 phase of orifice plate, closes scavenging air valve 11, at this time confined chamber
1 internal capacity is the geometric volume of confined chamber 1；
(3) driving device 5 resets, and 1 internal temperature of confined chamber is risen to t2, the expansion of 1 inner air of confined chamber, elastic membrane
3 expansions are heaved, and 1 volume of confined chamber is at this time：The geometric volume of ((273+30)/(273+20)) * confined chambers, to obtain t2 temperature
The volume of confined chamber 1 under degree；
(4) 1 internal temperature of confined chamber is risen into t3 again, 1 volume of confined chamber is at this time：((273+t3)/(273+
T1 the)) geometric volume of * confined chambers, to obtain the volume of confined chamber 1 at a temperature of t3.
When realizing temperature range variation of 1 internal temperature of confined chamber from t1 to t3 with this, to the internal capacity of confined chamber 1 into
Row is adjusted, be effectively ensured confined chamber 1 in temperature changing process gas No leakage, without exchange, ensure 1 internal pressure of confined chamber
It is constant.
When 1 internal temperature of confined chamber rises, inflation of elastic membrane, when 1 internal temperature of confined chamber declines, elastic membrane 6 is received
Contracting, changes the volume inside confined chamber 1 with this so that 1 internal capacity of confined chamber is changed with the change of test temperature, is had
Effect improves the precision of detection.
Embodiment two
Second embodiment of the present invention provides the confined chamber of another volume adjustable, confined chamber 1 is connected with admission line 12, into
Inlet air flow gauge 13 or/and air intake valve 14 be installed in feed channel 12, a kind of volume adjustable of the embodiment of the present invention two it is close
Closed chamber is largely identical as a kind of structure of the confined chamber of volume adjustable of above-described embodiment one, and something in common repeats no more.
In the present embodiment, confined chamber 1 is connected with admission line 12, be equipped on admission line 12 inlet air flow gauge 13 or/
With air intake valve 14, driving device 5 resets, and opens air intake valve 14, by admission line 12 and inlet air flow gauge 13 to closed
It is passed through clean gas inside room 1, it is V1 to be passed through gas volume, and 1 inner air of confined chamber expands, and elastic membrane 6 heaves expansion, at this time
1 volume of confined chamber is the geometric volume of V1+ confined chambers.
In the present embodiment, a kind of confined chamber of volume adjustable, including following regulating step：
(1) it keeps the closed hatch door of confined chamber 1 to close 15, opens scavenging air valve 11, adjust temperature adjustment or debug the temperature control of chuck 4
Or the wet unit of control, the temperature adjustment control unit 8 inside confined chamber 1 is adjusted, 1 internal temperature of confined chamber is made to reach t1；
(2) 5 setting in motion of driving device, driving elastic membrane 6 are compressed with 3 phase of orifice plate, close scavenging air valve 11, close scavenging air valve
11,1 internal capacity of confined chamber is the geometric volume of confined chamber 1 at this time；
(3) driving device 5 resets, and opens air intake valve 14, by admission line 12 and inlet air flow gauge 13 to confined chamber 1
Inside is passed through clean gas, and it is V1 to be passed through gas volume, and the expansion of 1 inner air of confined chamber, elastic membrane 6 heaves expansion, close at this time
1 volume of closed chamber is the geometric volume of V1+ confined chambers；
4) it adjusts temperature adjustment or debugs the temperature control or the wet unit of control of chuck, so that confined chamber internal temperature is risen or fallen and reach
T2, confined chamber inner air expansion or shrinkage, inflation of elastic membrane or contraction, confined chamber volume is the (geometry of V1+ confined chambers at this time
Volume) * (273+t2)/(273+t1).
Realize that the internal capacity to confined chamber 1 is initially adjusted with this, after the completion of inflation, the internal standard of confined chamber 1
Volume is the geometric volume of V1+ confined chambers.When 1 internal temperature of confined chamber rises, inflation of elastic membrane, when 1 inside temperature of confined chamber
When degree declines, elastic membrane 6 is shunk, and when the variation of 1 internal temperature of confined chamber is effectively ensured, 1 internal pressure of confined chamber keeps stablizing, interior
Portion's gas No leakage, without exchange.
In addition, in embodiment one and embodiment two, if considering when detection, atmospheric pressure and humidity influence, and 1 inside of confined chamber holds
The influence factor of atmospheric pressure and humidity variation need to be added in long-pending variation.
In conclusion the configuration of the present invention is simple, including confined chamber 1 and in gas sampling process in confined chamber 1
Portion carries out the gas compensation device 2 of gas volume compensation, and gas compensation device 2 is arranged on one or more surfaces of confined chamber 1,
In, gas compensation device 2 includes orifice plate 3, pressing plate 4, driving device 5 and elastic membrane 6, and orifice plate 3 is installed in any one of confined chamber 1
On face or multi-panel, elastic membrane 6 is arranged on the lateral surface of corresponding orifice plate 3, and can with respect to 1 internal expansion of confined chamber or contraction,
Pressing plate 4 is arranged on the lateral surface of corresponding elastic membrane 6, and driving device 5 is sequentially connected with corresponding pressing plate 4, to drive pressure
Plate 4 moves forward and backward, and compress elastic membrane 6 with this is in contact with orifice plate 3, by the setting of elastic membrane 6, when 1 inside temperature of confined chamber
When degree rises, elastic membrane 6 expands, and when 1 internal temperature of confined chamber declines, elastic membrane 6 is shunk so that the inside of confined chamber 1 holds
Product changes at a certain temperature, or by 1 inside progress air inlet of confined chamber, changing the volume inside confined chamber 1 with this,
So that 1 internal capacity of confined chamber is changed with the change of test temperature, the precision of detection is effectively improved.
The above embodiment is a preferred embodiment of the present invention, but embodiments of the present invention are not by above-described embodiment
Limitation, it is other it is any without departing from the spirit and principles of the present invention made by changes, modifications, substitutions, combinations, simplifications,
Equivalent substitute mode is should be, is included within the scope of the present invention.
Claims (9)
1. a kind of confined chamber of volume adjustable, including confined chamber (1), it is characterised in that：It is provided with and is used on the confined chamber (1)
To the gas compensation device (2) of progress gas volume compensation inside confined chamber (1), the gas compensation in gas sampling process
Device (2) be arranged on one or more surfaces of confined chamber (1), the gas compensation device (2) include orifice plate (3), pressing plate (4),
Driving device (5) and elastic membrane (6), the orifice plate (3) are installed in the arbitrary on one or more surfaces of confined chamber (1), the elasticity
Film (6) is arranged on the lateral surface of corresponding orifice plate (3), and can be with respect to confined chamber (1) internal expansion or contraction, the pressing plate
(4) it is arranged on the lateral surface of corresponding elastic membrane (6), the driving device (5) is sequentially connected with corresponding pressing plate (4), from
And moving forward and backward for pressing plate (4) is driven, compress elastic membrane (6) with this is in contact with orifice plate (3).
2. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：Driving device (5) setting
For pneumatically or electrically or manual driving device.
3. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：It is provide with outside the confined chamber (1)
There are temperature adjustment or damping chuck (7), the temperature adjustment or damping chuck (7) to be provided with temperature control or the wet unit of control.
4. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：The confined chamber (1) it is internal or
Outside is provided with temperature adjustment control unit (8), and closed hatch door (15) is provided on the confined chamber.
5. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：Setting in the confined chamber (1)
There is stirring wind turbine (9).
6. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：The confined chamber (1) is connected with
Discharge duct (10) is provided with scavenging air valve (11) on the discharge duct (10).
7. a kind of confined chamber of volume adjustable according to claim 1, it is characterised in that：The confined chamber (1) is connected with
Admission line (12) is equipped with inlet air flow gauge (13) or/and air intake valve (14) on the admission line (12).
8. it is a kind of for volume adjustable described in claim 1 evaporation confined chamber control method, which is characterized in that including with
Lower step：
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, adjust temperature adjustment or debug the temperature control or the wet unit of control of chuck,
The temperature adjustment control unit inside confined chamber is adjusted, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, close scavenging air valve, close scavenging air valve 11, close at this time
1 internal capacity of closed chamber is the geometric volume of confined chamber 1；
3) driving device 5 resets, and 1 internal temperature of confined chamber is risen to t2, the expansion of 1 inner air of confined chamber, elastic membrane 3 expands
It heaves, 1 volume of confined chamber is at this time：The geometric volume of ((273+t2)/(273+t1)) * confined chambers, at a temperature of obtaining t2
The volume of confined chamber 1；
4) confined chamber internal temperature is risen into t3 again, confined chamber volume is at this time：((273+t3)/(273+t1)) * is closed
The geometric volume of room, to obtain the volume of confined chamber at a temperature of t3.
9. a kind of control method of the evaporation confined chamber of volume adjustable for described in claim 7, which is characterized in that including with
Lower step：
1) it keeps the closed hatch door of confined chamber to close, opens scavenging air valve, adjust temperature adjustment or debug the temperature control or the wet unit of control of chuck,
The temperature adjustment control unit inside confined chamber is adjusted, confined chamber internal temperature is made to reach t1；
2) driving device setting in motion, driving elastic membrane are mutually compressed with orifice plate, close scavenging air valve, close scavenging air valve 11, close at this time
1 internal capacity of closed chamber is the geometric volume of confined chamber 1；
3) driving device resets, and opens air intake valve, by admission line and inlet air flow gauge to being passed through cleaning inside confined chamber
Gas, it is V1 to be passed through gas volume, and confined chamber inner air expands, and elastic membrane heaves expansion, and confined chamber volume is that V1+ is close at this time
The geometric volume of closed chamber；
4) it adjusts temperature adjustment or debugs the temperature control or the wet unit of control of chuck, so that confined chamber internal temperature is risen or fallen and reach t2, it is close
Closed chamber inner air expansion or shrinkage, inflation of elastic membrane or contraction, confined chamber volume is the (solid of V1+ confined chambers at this time
Product) * (273+t2)/(273+t1).
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682195.0A CN108594915B (en) | 2018-06-27 | 2018-06-27 | Volume-adjustable closed chamber and control method |
| PCT/CN2019/086529 WO2020001177A1 (en) | 2018-06-27 | 2019-05-13 | Sealed chamber having adjustable volume and control method |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810682195.0A CN108594915B (en) | 2018-06-27 | 2018-06-27 | Volume-adjustable closed chamber and control method |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108594915A true CN108594915A (en) | 2018-09-28 |
| CN108594915B CN108594915B (en) | 2023-08-29 |
Family
ID=63634199
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810682195.0A Active CN108594915B (en) | 2018-06-27 | 2018-06-27 | Volume-adjustable closed chamber and control method |
Country Status (2)
| Country | Link |
|---|---|
| CN (1) | CN108594915B (en) |
| WO (1) | WO2020001177A1 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111637268A (en) * | 2020-06-12 | 2020-09-08 | 国网重庆市电力公司检修分公司 | Multi-component dynamic gas distribution device and gas distribution method thereof |
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Also Published As
| Publication number | Publication date |
|---|---|
| CN108594915B (en) | 2023-08-29 |
| WO2020001177A1 (en) | 2020-01-02 |
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