CN113916440A - Pressure vessel and its vacuum degree measuring device - Google Patents
Pressure vessel and its vacuum degree measuring device Download PDFInfo
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- CN113916440A CN113916440A CN202010665018.9A CN202010665018A CN113916440A CN 113916440 A CN113916440 A CN 113916440A CN 202010665018 A CN202010665018 A CN 202010665018A CN 113916440 A CN113916440 A CN 113916440A
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- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L21/00—Vacuum gauges
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Abstract
本发明提供了一种压力容器及其真空度测量装置。该压力容器包括内容器、从外侧包裹内容器的外壳以及设于外壳外侧的真空度测量装置。其中，内容器和外壳之间形成有真空夹层，外壳的外壁上开设有连通该夹层的真空测量口。真空度测量装置包括保护罩、测量通道单元和多个测量探头。其中，测量通道单元和测量探头设于保护罩内，免遭于外界破坏。测量通道单元具有与真空测量口对应连接的一连接接头，以及与连接接头相通的多个测量接头，以形成多个用于与夹层相通的测量通道，从而测得夹层的真空度。
The invention provides a pressure vessel and a vacuum degree measuring device thereof. The pressure vessel includes an inner container, an outer shell surrounding the inner container from the outside, and a vacuum degree measuring device arranged outside the outer shell. Wherein, a vacuum interlayer is formed between the inner container and the outer shell, and a vacuum measurement port communicating with the interlayer is opened on the outer wall of the outer shell. The vacuum measuring device includes a protective cover, a measuring channel unit and a plurality of measuring probes. Among them, the measurement channel unit and the measurement probe are arranged in the protective cover to avoid external damage. The measuring channel unit has a connecting joint corresponding to the vacuum measuring port, and a plurality of measuring joints communicated with the connecting joint, so as to form a plurality of measuring channels for communicating with the interlayer, so as to measure the vacuum degree of the interlayer.
Description
Technical Field
The invention relates to the technical field of vacuum equipment, in particular to a pressure container and a vacuum degree measuring device thereof.
Background
In recent years, domestic vacuum equipment is used more and more, and particularly, cryogenic equipment for containing liquefied gas is widely applied.
The equipment mainly comprises an inner container and an outer shell, and a gap is formed between the inner container and the outer shell to form a vacuum interlayer. The vacuum degree of the interlayer is required to be kept during use, and a good heat preservation effect is required. Therefore, the dissipation of the cold energy of the inner container caused by radiation is at a lower level, the total dissipation of the cold energy of the inner container is small, and the static evaporation rate is in a required range. Therefore, special equipment is needed for measuring the vacuum degree of the interlayer of the vacuum equipment, the vacuum degree of the interlayer is regularly monitored, whether the vacuum degree is within a set range or not is observed, and the running state of the equipment is ensured to be good.
The traditional vacuum measuring device partially adopts a single-channel measuring structure, and the measurement of the vacuum degree can not be carried out once the vacuum measuring device is damaged. The part adopts the binary channels to measure the structure, and this binary channels measures the structure and is close with the tee bend commonly used, and two interfaces that set up along the axial will connect the valve respectively to control channel's intercommunication leads to this kind of structure to be longer in the axial direction, and whole overall dimension is big, and the installation is inconvenient, and manufacturing cost is high.
Disclosure of Invention
The invention aims to provide a vacuum degree measuring device of a container, which aims to solve the problems of large size and difficult installation caused by a double-channel measuring structure in the prior art.
The invention also aims to provide a pressure container which is provided with the vacuum degree measuring device.
In order to solve the technical problems, the invention adopts the following technical scheme:
the utility model provides a vacuum measuring device of container for measure the interbedded vacuum of container, set up the interbedded vacuum measurement mouth of intercommunication on the outer wall of this container, vacuum measuring device includes: the protective cover is internally provided with an accommodating cavity, one end of the protective cover is provided with an installation interface in a penetrating way, and the installation interface is used for being connected with the vacuum measuring port; the measuring channel unit is arranged in the accommodating cavity of the protective cover; a measuring cavity is arranged in the measuring cavity, a plurality of measuring joints are arranged on one side of the measuring cavity side by side, and a connecting joint is arranged on the other side of the measuring cavity; the measuring joint and the connecting joint are both communicated with the measuring cavity; an included angle is formed between the connecting joint and the measuring joint; the connecting joint is hermetically connected with the mounting interface; and the measuring probes are arranged in the accommodating cavity and are respectively and hermetically connected with the measuring joints one by one.
According to one embodiment of the invention, the measurement channel unit comprises a measurement chamber and an angle valve; the measuring chamber is internally provided with the measuring cavity, and the measuring joint is arranged on the measuring chamber in a protruding manner; the angle valve is provided with two connecting ends arranged at an included angle, one connecting end is connected with the measuring chamber in a sealing mode, and the other connecting end forms the connecting joint.
According to one embodiment of the invention, the two connection ends are perpendicular and the connection joint is perpendicular to the measurement joint.
According to one embodiment of the invention, the protective cover comprises a cylinder body and a first flange piece covering one end of the cylinder body; the cylinder body surrounds to form the accommodating cavity; the installation interface is arranged on the first flange piece, and a distance is reserved between the installation interface and the central axis of the cylinder body.
According to one embodiment of the invention, the measuring chamber comprises a measuring chamber main body and a plurality of connecting pipelines protruding from the measuring chamber main body, wherein the measuring chamber main body is positioned in the middle of the cylinder body and extends along the radial direction of the cylinder body; the connecting pipeline is connected with the connecting joint or the measuring joint; a plurality of the measuring joints are arranged at intervals along the extending direction of the measuring chamber.
According to one embodiment of the invention, the connection joint and the measuring joint are arranged at a spacing relative to each other in the transverse direction of the cylinder.
According to an embodiment of the present invention, a connecting pipe is protruded outwardly from the first flange member and is communicated with the mounting port, and the connecting pipe is welded to the vacuum measuring port.
According to one embodiment of the invention, the other end of the cartridge body is capped by a second flange member; and a plurality of plug connectors are arranged on the second flange part in a penetrating way and are respectively and correspondingly connected with the measuring probe.
According to one embodiment of the invention, the vacuum measurement device further comprises a support; the supporting piece is arranged on the peripheral wall of the protective cover in a protruding mode and is fixedly connected with the outer wall of the container, so that the protective cover is supported.
The embodiment also provides a pressure container which comprises an inner container, an outer shell wrapping the inner container from the outer side and the vacuum degree measuring device; a vacuum interlayer is formed between the inner container and the outer shell, and a vacuum measuring port communicated with the interlayer is formed on the outer wall of the outer shell; and the mounting interface of the protective cover of the vacuum degree measuring device is connected with the vacuum measuring port.
According to the technical scheme, the vacuum degree measuring device of the container at least has the following advantages and positive effects:
1. the protective cover is adopted, the measuring channel unit and the measuring probe are arranged in the accommodating cavity of the protective cover, and the measuring component is prevented from being damaged by external impact.
2. The connecting joint and the measuring joint on the measuring channel unit are respectively arranged on two sides, and an included angle is formed between the connecting joint and the measuring joint. The design of the included angle is beneficial to the three-dimensional arrangement of the measurement channel unit in the protective cover, the internal space of the protective cover can be fully utilized, the space occupied by the measurement channel unit is reduced as much as possible, the overall dimension of the protective cover is reduced, and the use and the installation are very convenient.
3. The connecting joint of the measuring channel unit is correspondingly connected with the mounting interface, and a single channel communicated with the interlayer is expanded to form a plurality of channels through the measuring chamber and the measuring joints so as to be correspondingly connected with a plurality of measuring probes, so that multi-channel measurement is realized, and the measuring accuracy is improved.
Drawings
FIG. 1 is a schematic structural diagram of a vacuum degree measuring device according to an embodiment of the present invention.
Fig. 2 is a sectional view taken along line a-a of fig. 1.
Fig. 3 is a view in the direction C of fig. 1.
The reference numerals are explained below: 1-protective cover, 101-installation interface, 11-cylinder, 13-first flange piece, 131-connecting pipe, 15-second flange piece, 102-bolt hole, 16-plug piece, 3-measuring channel unit, 301-measuring cavity, 302-connecting joint, 303-measuring joint, 31-measuring chamber, 311-measuring chamber body, 312-connecting pipeline, 33-angle valve, 331-connecting end, 5-measuring probe and 7-supporting piece.
Detailed Description
Exemplary embodiments that embody features and advantages of the invention are described in detail below in the specification. It is to be understood that the invention is capable of other embodiments and that various changes in form and details may be made therein without departing from the scope of the invention and the description and drawings are to be regarded as illustrative in nature and not as restrictive.
The embodiment provides a pressure container and a vacuum degree measuring device thereof. The pressure container comprises an inner container, an outer shell wrapping the inner container from the outer side, and a vacuum degree measuring device arranged on the outer side of the outer shell. Wherein, an interlayer for vacuumizing is formed between the inner container and the outer shell, and a vacuum measuring port communicated with the interlayer is arranged on the outer wall of the outer shell. The vacuum degree measuring device comprises a protective cover, a measuring channel unit and a plurality of measuring probes. Wherein, the measuring channel unit and the measuring probe are arranged in the protective cover and are prevented from being damaged by the outside. The measuring channel unit is provided with a connecting joint correspondingly connected with the vacuum measuring port and a plurality of measuring joints communicated with the connecting joint so as to form a plurality of measuring channels communicated with the interlayer, thereby measuring the vacuum degree of the interlayer.
Referring to fig. 1, fig. 1 shows a specific structure of a vacuum measurement device according to the present embodiment.
The vacuum degree measuring device mainly comprises a hollow protective cover 1, a measuring channel unit 3 and two measuring probes 5, wherein the measuring channel unit 3 and the two measuring probes 5 are arranged in the protective cover 1. The protective cover 1 is provided with a hollow accommodating cavity, one end of the protective cover 1 is provided with an installation interface 101 in a penetrating mode, and the installation interface 101 is used for being connected with an interlayer vacuum measurement port. The measurement channel unit 3 is respectively connected with the mounting interface 101 and the measurement probe 5 to realize measurement operation of the vacuum degree of the interlayer.
Specifically, the protective cover 1 includes a cylinder 11, a first flange member 13, and a second flange member 15.
The longitudinal ends of the cylinder 11 are respectively provided with an opening, and the openings are surrounded by annular flanges. A plurality of bolt connecting holes are circumferentially distributed on the annular flange.
The first flange part 13 and the second flange part 15 are respectively sealed and attached to the openings at the two longitudinal ends of the cylinder body 11.
In this embodiment, the first flange member 13 and the second flange member 15 are each a uniform sized flange. The flange has a plurality of through holes formed in the circumferential direction of the outer periphery thereof to correspond to the bolt-fastening holes of the annular flange, thereby forming a flange connection and sealing the cylindrical body 11.
A mounting interface 101 is arranged on the first flange part 13 in a penetrating way, and the mounting interface 101 is used for being butted with a vacuum measuring port of the container so as to provide a pressure channel communicated with the interlayer for the measuring channel unit 3.
The first flange 13 is further provided with a connecting pipe 131 which is extended outwards and vertically and communicated with the mounting interface 101. The connection tube 131 is used to be welded with a vacuum measuring port to communicate with the interlayer. Preferably, the connecting pipe 131 is integrally formed on the first flange member 13.
The mounting interface 101 is spaced from the central axis of the first flange member 13 (barrel 11).
Based on the view direction of fig. 1, the mounting interface 101 is located at a lower portion of the first flange 13, and the mounting interface 101 and the flange are integrally in an eccentric structure. The protection cover has the advantages that the installation interface 101 is arranged under the ground, the installation space of the upper part inside the protection cover 1 is made up, the three-dimensional arrangement of the measurement channel unit 3 connected with the installation interface 101 in the protection cover 1 is facilitated, the measurement channel unit 3 and the measurement probe 5 can be connected in the transverse direction of the protection cover 1, the internal space of the protection cover 1 is fully utilized, the redundant space is reduced, and the longitudinal size of the protection cover 1 is reduced.
The measuring channel unit 3 is arranged in the accommodating cavity of the protective cover 1 and is prevented from being damaged by the outside.
The measurement channel unit 3 is provided internally with a hollow measurement chamber 301 with a connection fitting 302 arranged on one side and two measurement fittings 303 arranged side by side on the other side. The connection nipple 302 and the two measuring nipples 303 each protrude on the outer periphery of the measuring channel unit 3 and communicate with the measuring chamber 301, respectively, to form a three-way structure. The connection joints 302 are correspondingly connected with the installation interface 101, and each measurement joint 303 is in butt joint with the measurement probe 5.
Due to the eccentric arrangement of the mounting connection 101, a central space of the cylinder 11 is made available for the voluminous measuring channel unit 3, so that it can be located in the middle of the interior of the cylinder 11. Further, the connection joints 302 and the measurement joints 303 are disposed at opposite intervals in the lateral direction of the cylinder 11.
Specifically, the measurement channel unit 3 includes a measurement chamber 31 and an angle valve 33. A measuring cavity 301 is formed in the measuring chamber 31, and a measuring joint 303 protrudes from the measuring chamber 31. The angle valve 33 has two connection ends 331 arranged at an angle, wherein one connection end 331 is connected to the measuring chamber 31 in a sealing manner, and the other connection end 331 forms a connection joint 302.
With reference to fig. 2, the measuring chamber 31 is centered inside the protective cover 1, the connection fitting 302 is located in the lower half of the protective cover 1, and the measuring fitting 303 is located in the upper half of the protective cover 1 and communicates radially with the connection fitting 302.
The measurement chamber 31 includes a hollow measurement chamber body 311 and three connection pipes 312 protruding from the outer peripheral wall of the measurement chamber body 311.
The measuring chamber body 311 is approximately cylindrical, the cross section of the measuring chamber body 311 is rectangular, and the central axis of the measuring chamber body 311 is coincident with or parallel to the radial direction of the cylinder 11. Opposite ends of the measuring chamber body 311 are respectively arranged to extend radially of the cylinder 11, i.e. the measuring chamber 301 is arranged radially, making full use of the radial space of the protective cover 1.
Three connecting pipes 312 are arranged oppositely on both sides on the outer periphery of the measuring chamber main body 311.
In the view direction of fig. 2, two of the connecting pipes 312 are vertically disposed on the upper side of the measuring chamber body 311, and the other connecting pipe 312 is vertically disposed on the lower side of the measuring chamber body 311.
The angle valve 33 includes a valve body and a valve element provided in the valve body.
The valve body is of a bending structure and is provided with two connecting ends 331 connected at an included angle. One of the connection ends 331 is connected with a connection pipe 312 at the lower side of the measurement chamber body 311, and the other connection end 331 is connected with the mounting interface 101, so that the mounting interface 101 communicates with the measurement chamber 301; the valve core is used for controlling the opening and closing of the installation interface 101.
The connection mode of the connecting end 331 is flange sealing connection, and the sealing effect is guaranteed.
Preferably, the angle between the two connection ends 331 of the angle valve 33 is 90 degrees. Furthermore, the connecting joint 302 is perpendicular to the measuring joint 303, so that the whole measuring channel unit 3 is transversely arranged in the protective cover 1, thereby reducing the longitudinal space occupied by the measuring channel unit 3 as much as possible and reducing the external dimension of the protective cover 1.
The two measurement connectors 303 are arranged at intervals along the extending direction of the measurement chamber 31, and are respectively and vertically connected with the two connecting pipes 312 on the upper side of the measurement chamber main body 311. Further, the two measuring joints 303 are located on the same horizontal axis, which is parallel to the radial direction of the cylinder 11.
The two measuring probes 5 are respectively butted with the measuring joints 303 one by one, so that the vacuum degree measurement of the interlayer is realized.
In the present embodiment, the measurement probe 5 employs a vacuum gauge. Of course, the measuring probe 5 may be other sensors capable of measuring the vacuum degree.
In this embodiment, the single channel led out from the eccentric mounting interface 101 on the first flange 13 is expanded to form a double channel by the two measuring joints 303, thereby realizing double channel measurement.
The structure of the double measuring channels can solve the problem that the measuring probe 5 of one measuring channel and the measuring part matched with the measuring probe 5 can not measure when being damaged. If the parts of one channel are damaged, the two channels can be measured by the measuring probe 5 of the other channel. And two measuring probes 5 can be used for measuring at the same time, so that whether two groups of measuring data are consistent or not can be checked, and the measuring accuracy is improved. Therefore, the problem that measurement cannot be carried out due to damage of a measurement component adopting a single channel is avoided, single measurement data is avoided, mutual verification cannot be carried out, influence is avoided, and normal operation of equipment is guaranteed.
Referring to fig. 3, two sets of lead holes respectively corresponding to the two measuring probes 5 are disposed on the second flange 15, so that the leads of the measuring probes 5 extend out of the protective cover 1.
Correspondingly, the protective cover 1 also comprises two sets of plug connectors 16. The sets of connectors 16 are respectively disposed in the sets of lead holes to connect with the leads of the measurement probe 5. Specifically, each group of the plug connectors 16 is two and arranged adjacently, and the two plug connectors are respectively a resistance gauge and an ionization gauge matched with a vacuum gauge pipe, and can be freely switched according to the requirement of the vacuum degree to be measured.
Referring back to fig. 1, the vacuum measuring apparatus further includes a support 7.
The support member 7 may be provided in plural and protrude outward from an outer wall of the protective cover 1, preferably, an outer end face of the first flange member 13. One end of the support 7 protruding is connected and fixed to the outer wall of the container, thereby supporting the protection cover 1 and the respective measuring parts provided inside the protection cover 1. The supporting member 7 may be a rib plate.
In summary, the vacuum degree measuring device of the container provided by the invention at least has the following advantages and positive effects:
firstly, having adopted safety cover 1, having settled measurement channel unit 3 and measuring probe 5 in the holding intracavity of safety cover 1, can be to the comprehensive protection of above-mentioned measuring part, prevent because of outside striking with collide with damage measuring part, guarantee the normal measurement and the life expectancy of equipment.
Next, the connection joint 302 and the measurement joint 303 on the measurement channel unit 3 are arranged on two sides, and an included angle is formed between the connection joint 302 and the measurement joint 303. The design of contained angle does benefit to the three-dimensional arrangement of measurement passageway unit 3 in protection cover 1, can make full use of protection cover 1's inner space, and the space that measurement passageway unit 3 occupy is makeed to reduce protection cover 1's overall dimension, it is all very convenient to use and install.
Then, the connection joint 302 of the measurement channel unit 3 is correspondingly connected with the installation interface 101, and the single channel communicated with the interlayer is expanded to form a plurality of channels through the measurement chamber 31 and the plurality of measurement joints 303 so as to be correspondingly connected with the plurality of measurement probes 5, so that multi-channel measurement is realized, and the measurement accuracy is improved.
While the present invention has been described with reference to several exemplary embodiments, it is understood that the terminology used is intended to be in the nature of words of description and illustration, rather than of limitation. As the present invention may be embodied in several forms without departing from the spirit or essential characteristics thereof, it should also be understood that the above-described embodiments are not limited by any of the details of the foregoing description, but rather should be construed broadly within its spirit and scope as defined in the appended claims, and therefore all changes and modifications that fall within the meets and bounds of the claims, or equivalences of such meets and bounds are therefore intended to be embraced by the appended claims.
Claims (10)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665018.9A CN113916440A (en) | 2020-07-10 | 2020-07-10 | Pressure vessel and its vacuum degree measuring device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202010665018.9A CN113916440A (en) | 2020-07-10 | 2020-07-10 | Pressure vessel and its vacuum degree measuring device |
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| Publication Number | Publication Date |
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| CN113916440A true CN113916440A (en) | 2022-01-11 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202010665018.9A Pending CN113916440A (en) | 2020-07-10 | 2020-07-10 | Pressure vessel and its vacuum degree measuring device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115790962A (en) * | 2022-12-13 | 2023-03-14 | 核工业理化工程研究院 | Pipeline structure for detecting vacuum degree in drum of fluid equipment, structure of fluid equipment and vacuum degree detection method thereof |
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| JP2004257784A (en) * | 2003-02-25 | 2004-09-16 | Isuzu Motors Ltd | Degree-of-vacuum measuring unit |
| CN205015240U (en) * | 2015-10-12 | 2016-02-03 | 陕西汽车集团有限责任公司 | Measure portable equipment of material outgassing rate |
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| CN107894300A (en) * | 2017-12-29 | 2018-04-10 | 李涛 | A kind of vacuum degree measuring equipment |
| CN207702126U (en) * | 2017-12-26 | 2018-08-07 | 成都国光电气股份有限公司 | A kind of binary channels vacuum measuring device being exclusively used in pressure vessel |
| CN108561746A (en) * | 2018-04-24 | 2018-09-21 | 中车长江车辆有限公司 | Vacuum measuring device and cryogenic liquid storing and transporting system |
| CN212409953U (en) * | 2020-07-10 | 2021-01-26 | 张家港中集圣达因特种装备有限公司 | Pressure vessel and vacuum degree measuring device thereof |
-
2020
- 2020-07-10 CN CN202010665018.9A patent/CN113916440A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2004257784A (en) * | 2003-02-25 | 2004-09-16 | Isuzu Motors Ltd | Degree-of-vacuum measuring unit |
| CN205015240U (en) * | 2015-10-12 | 2016-02-03 | 陕西汽车集团有限责任公司 | Measure portable equipment of material outgassing rate |
| CN206583585U (en) * | 2017-03-21 | 2017-10-24 | 中国科学院合肥物质科学研究院 | A kind of measurement and analytical equipment for magnet Dewar condition of high vacuum degree |
| CN207702126U (en) * | 2017-12-26 | 2018-08-07 | 成都国光电气股份有限公司 | A kind of binary channels vacuum measuring device being exclusively used in pressure vessel |
| CN107894300A (en) * | 2017-12-29 | 2018-04-10 | 李涛 | A kind of vacuum degree measuring equipment |
| CN108561746A (en) * | 2018-04-24 | 2018-09-21 | 中车长江车辆有限公司 | Vacuum measuring device and cryogenic liquid storing and transporting system |
| CN212409953U (en) * | 2020-07-10 | 2021-01-26 | 张家港中集圣达因特种装备有限公司 | Pressure vessel and vacuum degree measuring device thereof |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115790962A (en) * | 2022-12-13 | 2023-03-14 | 核工业理化工程研究院 | Pipeline structure for detecting vacuum degree in drum of fluid equipment, structure of fluid equipment and vacuum degree detection method thereof |
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