CN203178824U - Device for compensating for changes of gas pressure in sealed container, and pressure equalizing device - Google Patents
Device for compensating for changes of gas pressure in sealed container, and pressure equalizing device Download PDFInfo
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- CN203178824U CN203178824U CN 201320084971 CN201320084971U CN203178824U CN 203178824 U CN203178824 U CN 203178824U CN 201320084971 CN201320084971 CN 201320084971 CN 201320084971 U CN201320084971 U CN 201320084971U CN 203178824 U CN203178824 U CN 203178824U
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- air bag
- closed container
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- joint
- gas pressure
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Abstract
The utility model relates to the technical field of gas pressure adjustment, and specifically relates to a device for compensating for changes of gas pressure in a sealed container, and a pressure equalizing device. The compensating device comprises an air bag and a connector communicated with the air bag. The air bag is arranged inside the sealed container, the connector is fixed on the sealed container, and the air bag is communicated with the atmosphere through the connector. According to the utility model, by the deformation of the bag, changes of the internal pressure of the sealed container caused by changes of the gas temperature can be effectively compensated, so that the pressure inside the sealed container can be maintained within a stable range, and accurate test results can be obtained; besides, the compensating device is simple in structure, convenient to operate and low in cost.
Description
Technical field
The utility model relates to gaseous tension regulation technology field, particularly a kind of device and pressure-equalizing device that gas pressure change in the closed container is compensated.
Background technology
Along with the fast development of China's science and technology, the development trend of all trades and professions all begins to tend to " intellectuality ".Intelligentized development foundation is data, only after obtaining accurate data, could adjust and control it.And the acquisition of data often needs to consider the influence of each factor (as environment, temperature, pressure etc.), factor is more many, accuracy influence to data is just more big, therefore reduce the influence of factors such as environment, temperature and pressure as much as possible, can improve the accuracy of measuring, thereby significantly reduce " intellectuality " required processing.
As everyone knows, pressure and the temperature of gas are closely bound up, and pressure increased when the gas temperature in the closed container raise, and pressure reduced when temperature reduced; This pressure that caused by the temperature variation of gas changes the accuracy of measurement data such as the pressure that often influences in the closed container or liquid level, and then influence " intellectuality " required processing, therefore it is stable to need a kind of device that the interior pressure of closed container is kept, the influence of the bloated shrinkage of the body heat of not being bullied.For example there is certain amount of fluid in the closed container, and in order to guarantee the normal operation of product, must guarantees the amount of liquid within the specific limits, so need liquid is monitored.When adopts pressure sensor was measured, the data of surveying comprised two contents: the one, and gaseous tension, the 2nd, fluid pressure.In the product operational process, temperature can raise in the closed container, in order to guarantee accurate, the direct reaction liquid pressure of data that sensor is surveyed, and simplify post-processed (not needing temperature compensation calculating etc.), by the closed container internal gas pressure is remained on about an atmospheric pressure, can obtain liquid atmospheric pressure value comparatively accurately.
The utility model content
(1) technical matters that will solve
The purpose of this utility model provides a kind of device and pressure-equalizing device that gas pressure change in the closed container is compensated, thereby improves the accuracy to the testing result in the closed container.
(2) technical scheme
For reaching above-mentioned purpose, the utility model provides a kind of device that gas pressure change in the closed container is compensated, and comprises air bag and the joint that is communicated with described air bag.
Further, described air bag is shaped as circular ring type air bag or cylinder type air bag.
Further, also comprise air bag seat, described cylinder type Air sac cover is located at outside the described air bag seat.
Further, described air bag is arranged with protective cover outward.
Further, the quantity of described joint is one or more.
Further, described joint is the pipe that two ends are provided with screw thread.
A kind of built-in pressure-equalizing device comprises the device that gas pressure change in the closed container is compensated described above, and described air bag is arranged on closed container inside, and described joint is fixed on the closed container, and described air bag is communicated with atmosphere by joint.
A kind of external pressure-equalizing device, comprise the device that gas pressure change in the closed container is compensated described above, described air bag is arranged on the closed container outside, and described joint is fixed on the closed container, and described air bag is by joint and closed container internal communication.
(3) beneficial effect
Device and pressure-equalizing device that gas pressure change in the closed container is compensated that the utility model provides, distortion by air bag, can effectively compensate the variation that changes the closed container internal pressure that causes owing to gas temperature, pressure in the closed container is remained in the range of stability, thereby obtain testing result accurately, this apparatus structure is simple, easy to operate simultaneously, and cost is low.
Description of drawings
Fig. 1 is the structural representation of the device that gas pressure change in the closed container is compensated of the present utility model;
Fig. 2 is the structural representation of the pressure-equalizing device among the embodiment 1 of the present utility model;
Fig. 3 is the structural representation of the pressure-equalizing device among the embodiment 2 of the present utility model;
Fig. 4 is the structural representation of air bag and air bag seat among Fig. 3;
Fig. 5 is the structural representation of the pressure-equalizing device among the embodiment 3 of the present utility model;
Fig. 6 be among Fig. 5 B-B to cut-open view.
Among the figure, 1: joint; 2: air bag; 4: air bag seat; 5: closed container.
Embodiment
Below in conjunction with drawings and Examples, embodiment of the present utility model is described in further detail.Following examples are used for explanation the utility model, but are not used for limiting scope of the present utility model.
In description of the present utility model, need to prove, term " " center "; " vertically "; " laterally "; " on "; D score; " preceding ", " back ", " left side ", " right side ", " vertically ", " level ", " top ", " end " " interior ", close the orientation of indications such as " outward " or position is based on orientation shown in the drawings or position relation, only be the utility model and simplification description for convenience of description, rather than device or the element of indication or hint indication must have specific orientation, with specific orientation structure and operation, therefore can not be interpreted as restriction of the present utility model.In addition, term " first ", " second ", " the 3rd " etc. only are used for describing purpose, and can not be interpreted as indication or hint relative importance.
In description of the present utility model, need to prove that unless clear and definite regulation and restriction are arranged in addition, term " installation ", " linking to each other ", " connection " should be done broad understanding, for example, can be fixedly connected, also can be to removably connect, or connect integratedly; Can be mechanical connection, also can be to be electrically connected; Can be directly to link to each other, also can link to each other indirectly by intermediary, can be the connection of two element internals.For the ordinary skill in the art, can concrete condition understand the concrete implication of above-mentioned term in the utility model.
In addition, in description of the present utility model, except as otherwise noted, the implication of " a plurality of ", " many ", " many groups " is two or more.The effect of joint described in the utility model 1 is that air bag 2 and closed container are linked together, and the form of this joint is a lot, for example adopts both ends to be provided with the connecting pipe of screw thread, operation valve etc.
As shown in Figure 1, the utility model provides a kind of device that gas pressure change in the closed container is compensated, and it comprises air bag 2 and the joint 1 that is communicated with described air bag 2.Air bag 2 be shaped as circular ring type air bag or cylinder type air bag.Preferably, this also comprises air bag seat 4 to the device that gas pressure change in the closed container compensates, and to make things convenient for fixation balloon 2, the cylinder type Air sac cover is located at outside the air bag seat.More preferably, the air bag 2 outer protective covers that are arranged with are with protection air bag 2.Further, the quantity of joint 1 can be one or more.
The device that gas pressure change in the closed container is compensated that the utility model provides utilizes the softer deformable good characteristic of air bag material to realize that pressure regulates, and its regulative mode has following two kinds: the inflow of the gas that (1) air bag is outer or flow out air bag; (2) the outer gas compressing gasbag of air bag.
Embodiment 1
Referring to Fig. 1, the pressure-equalizing device that present embodiment provides comprises air bag 2 and the joint 1 that is communicated with air bag 2, and air bag 2 is the cylinder type air bag, and air bag 2 is arranged on closed container 5 inside, and joint 1 is fixed on the closed container 5, and air bag 2 is communicated with atmosphere by joint 1.Wherein, air bag 2 is one and guarantees that closed container 5 has the device of good seal performance; Air bag 2 adopts the manufacturing of thin-walled gastight material, for example rubber, plastics or synthetic material; Air bag 2 has the characteristic that nature is regulated internal capacity, and air bag 2 volumes just respective change can take place during closed container 5 internal gas pressure generation subtle change.
Gas Yin Wendu in closed container 5 raises, when causing volume expansion, air pressure in the closed container 5 becomes big (being higher than an atmospheric pressure), because air bag 2 communicates with atmosphere, therefore air bag 2 is compressed, gas in the air bag 2 spills in the atmosphere by joint 1, because the volume of air bag 2 reduces to make the increase that takes up space of gases in the closed container 5, atmospheric pressure of air pressure recovery; On the contrary, 5 inner Yin Wendu reduce when closed container, when causing gas volume to shrink, air pressure in the closed container 5 diminish (being lower than an atmospheric pressure), air bag 2 expansions this moment, the gas in the atmosphere then enters in the air bag 2 by joint 1, and air bag 2 volumes are increased, and the shared volume of gas in the closed container 5 reduces, thereby makes air pressure return to an atmospheric pressure.This device remains at about an atmospheric pressure closed container 5 air pressure inside by the volume change of air bag 2, thereby provides a stable measurement environment to monitoring equipment.
Referring to Fig. 2-Fig. 3, the pressure-equalizing device that present embodiment provides comprises air bag 2, air bag seat 4 and the joint 1 that is communicated with air bag 2, air bag 2 is arranged on closed container 5 inside, air bag 2 adopts the cylinder type air bag, joint 1 is fixed on the closed container 5, air bag 2 is communicated with atmosphere by joint 1, and cylinder type air bag 2 is set in air bag seat 4 outsides.Air bag 2 is bonded to a sealed air chamber with air bag seat 4, and sealed air chamber links to each other with atmosphere by joint 1.Air bag seat 4 is for fixed support air bag 2, and air bag seat 4 is fixed together with closed container.
Gas Yin Wendu in closed container 5 raises, when causing volume expansion, air pressure in the closed container 5 becomes big (being higher than an atmospheric pressure), because air bag 2 communicates with atmosphere, therefore air bag 2 is compressed, gas in the air bag 2 spills in the atmosphere by joint 1, because the volume of air bag 2 reduces to make the increase that takes up space of gases in the closed container 5, atmospheric pressure of air pressure recovery; On the contrary, 5 inner Yin Wendu reduce when closed container, when causing gas volume to shrink, air pressure in the closed container 5 diminish (being lower than an atmospheric pressure), air bag 2 expansions this moment, the gas in the atmosphere then enters in the air bag 2 by joint 1, and air bag 2 volumes are increased, and the shared volume of gas in the closed container 5 reduces, thereby makes air pressure return to an atmospheric pressure.This device remains at about an atmospheric pressure closed container 5 air pressure inside by the volume change of air bag 2, thereby provides a stable measurement environment to monitoring equipment.
Embodiment 3
Referring to Fig. 4-Fig. 5; the pressure-equalizing device that present embodiment provides comprises air bag 2 and the joint 1 that is communicated with air bag 2; air bag 2 is arranged on closed container 5 outsides; the air bag 2 outer protective cover (not shown) that are arranged with; so that air bag 2 is protected; protective cover is made by hard materials such as metals, and joint 1 is fixed on the closed container 5, and air bag 2 is by joint 1 and closed container 5 internal communication.Air bag 2 is the circular ring type air bag, and the quantity of joint 1 is two, and the angle between two joints 1 is 180 °.The quantity that need to prove joint 1 can be set to one or more as required, and the quantity of joint 1 is many can be convenient to circulate between the interior gas of gas and air bag 2 in the closed container 5, and air pressure adjustment is quick.
Gas Yin Wendu in closed container 5 raises, and gas volume increases, and the gas that volume increases enters air bag 2 by joint 1, and air bag 2 volumes are increased, thereby the air pressure in the closed container 5 is maintained about an atmospheric pressure; 5 inner Yin Wendu reduce when closed container, and when causing gas volume to shrink, air pressure reduces, and the gas in the air bag 2 then enters closed container 5 inside by joint 1, and air bag 2 volumes reduce, and air pressure maintains about an atmospheric pressure.This device remains at about an atmospheric pressure closed container 5 air pressure inside by the volume change of air bag 2, thereby provides a stable measurement environment to monitoring equipment.
Device and pressure-equalizing device that gas pressure change in the closed container is compensated that the utility model provides, distortion by air bag, can effectively compensate the variation that changes the closed container internal pressure that causes owing to gas temperature, pressure in the closed container is remained in the range of stability, thereby obtain testing result accurately, this apparatus structure is simple, easy to operate simultaneously, and cost is low.
It below only is preferred implementation of the present utility model; should be pointed out that for those skilled in the art, under the prerequisite that does not break away from the utility model know-why; can also make some improvement and replacement, these improvement and replacement also should be considered as protection domain of the present utility model.
Claims (8)
1. the device that gas pressure change in the closed container is compensated is characterized in that, comprises air bag and the joint that is communicated with described air bag.
2. the device that gas pressure change in the closed container is compensated as claimed in claim 1 is characterized in that, described air bag be shaped as circular ring type air bag or cylinder type air bag.
3. the device that gas pressure change in the closed container is compensated as claimed in claim 2 is characterized in that, also comprises air bag seat, and described cylinder type Air sac cover is located at outside the described air bag seat.
4. as each described device that gas pressure change in the closed container is compensated of claim 1-3, it is characterized in that described air bag is arranged with protective cover outward.
5. as each described device that gas pressure change in the closed container is compensated of claim 1-3, it is characterized in that the quantity of described joint is one or more.
6. as each described device that gas pressure change in the closed container is compensated of claim 1-3, it is characterized in that described joint is the pipe that two ends are provided with screw thread.
7. pressure-equalizing device, it is characterized in that, comprise each described device that gas pressure change in the closed container is compensated of closed container and claim 1-6, described air bag is arranged on closed container inside, described joint is fixed on the closed container, and described air bag is communicated with atmosphere by joint.
8. pressure-equalizing device, it is characterized in that, comprise each described device that gas pressure change in the closed container is compensated of closed container and claim 1-6, described air bag is arranged on the closed container outside, described joint is fixed on the closed container, and described air bag is by joint and closed container internal communication.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084971 CN203178824U (en) | 2013-02-25 | 2013-02-25 | Device for compensating for changes of gas pressure in sealed container, and pressure equalizing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320084971 CN203178824U (en) | 2013-02-25 | 2013-02-25 | Device for compensating for changes of gas pressure in sealed container, and pressure equalizing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203178824U true CN203178824U (en) | 2013-09-04 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320084971 Expired - Lifetime CN203178824U (en) | 2013-02-25 | 2013-02-25 | Device for compensating for changes of gas pressure in sealed container, and pressure equalizing device |
Country Status (1)
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| CN (1) | CN203178824U (en) |
Cited By (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777056A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Series-type collecting and detecting device |
| CN104777069A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Powdery substance processing device |
| CN104792393A (en) * | 2015-03-17 | 2015-07-22 | 浙江理工大学 | Volume compensation type collecting and measuring equipment |
| CN104819909A (en) * | 2015-03-17 | 2015-08-05 | 浙江理工大学 | Equipment for metering medicinal powder heating mass loss rate |
| CN105427465A (en) * | 2016-01-08 | 2016-03-23 | 成都市天仁自动化科技有限公司 | Flow metering type discharge liquid metering system of automatic liquid selling machine and metering method thereof |
| WO2017032323A1 (en) * | 2015-08-25 | 2017-03-02 | 太仓市荣驰电机有限公司 | Sealing protection system and method for sealed apparatus |
| CN113746055A (en) * | 2021-09-07 | 2021-12-03 | 特变电工昭和（山东）电缆附件有限公司 | Intelligent oil-filled outdoor power terminal and working method thereof |
| CN113924154A (en) * | 2019-08-05 | 2022-01-11 | 喜利得股份公司 | Device for compensating pressure fluctuations |
-
2013
- 2013-02-25 CN CN 201320084971 patent/CN203178824U/en not_active Expired - Lifetime
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104777056A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Series-type collecting and detecting device |
| CN104777069A (en) * | 2015-03-17 | 2015-07-15 | 浙江理工大学 | Powdery substance processing device |
| CN104792393A (en) * | 2015-03-17 | 2015-07-22 | 浙江理工大学 | Volume compensation type collecting and measuring equipment |
| CN104819909A (en) * | 2015-03-17 | 2015-08-05 | 浙江理工大学 | Equipment for metering medicinal powder heating mass loss rate |
| WO2017032323A1 (en) * | 2015-08-25 | 2017-03-02 | 太仓市荣驰电机有限公司 | Sealing protection system and method for sealed apparatus |
| CN105427465A (en) * | 2016-01-08 | 2016-03-23 | 成都市天仁自动化科技有限公司 | Flow metering type discharge liquid metering system of automatic liquid selling machine and metering method thereof |
| CN113924154A (en) * | 2019-08-05 | 2022-01-11 | 喜利得股份公司 | Device for compensating pressure fluctuations |
| CN113924154B (en) * | 2019-08-05 | 2022-11-22 | 喜利得股份公司 | Device for compensating pressure fluctuations |
| CN113746055A (en) * | 2021-09-07 | 2021-12-03 | 特变电工昭和（山东）电缆附件有限公司 | Intelligent oil-filled outdoor power terminal and working method thereof |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130904 |