CN207702126U - A kind of binary channels vacuum measuring device being exclusively used in pressure vessel - Google Patents
A kind of binary channels vacuum measuring device being exclusively used in pressure vessel Download PDFInfo
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- CN207702126U CN207702126U CN201721848869.7U CN201721848869U CN207702126U CN 207702126 U CN207702126 U CN 207702126U CN 201721848869 U CN201721848869 U CN 201721848869U CN 207702126 U CN207702126 U CN 207702126U
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Abstract
The utility model discloses a kind of binary channels vacuum measuring device being exclusively used in pressure vessel, including valve body, the first tube chamber, the second tube chamber, the hand-operated valve installation cavity of valve inner are connected with the center bore of valve body respectively；It is equipped with the first flange pipe fitting being connected with the first tube chamber outside valve body, the second flange pipe fitting being connected with the second tube chamber is equipped with outside valve body；Valve seat is installed outside valve body, the manual valve module of vacuum is equipped in the hand-operated valve installation cavity of valve inner, the manual valve regulation spiral cover of the vacuum being connected with the manual valve module of vacuum is installed on valve seat；First flange pipe fitting has vacuum measurement sensor, second flange pipe fitting to have vacuum pipe by second flange component detachable connection by first flange component detachable connection.The utility model directly can accurately measure the vacuum degree of pressure vessel interlayer, very easy to use, improve the vacuum measurement precision of pressure vessel interlayer.
Description
Technical field
The utility model is related to vacuum measurement technical field more particularly to a kind of binary channels vacuum being exclusively used in pressure vessel
Measuring device.
Background technology
Deep cooling industry mainly applies low-temperature heat-insulation pressure container, low-temperature heat-insulation pressure container for the storage and transport of medium
It is the container for storing or transporting the cryogenic medias such as liquid hydrogen, liquid oxygen, liquid helium, liquid argon, liquid nitrogen and liquefied natural gas.It is now domestic
Low-temperature heat-insulation pressure container generally uses vacuum insulation, its advantage is that being easy to the thermal insulation of complex-shaped surface, pre- refrigerating loss is small,
Vacuum interlayer can accomplish very little, but need lasting high vacuum.Low-temperature heat-insulation pressure container is mainly attached by liner, shell and valve
Part system forms.Liner is used for storing cryogenic media, and shell provides protection and support；The liner of low-temperature heat-insulation pressure container and outer
Interlayer is formed between shell；Sandwich design is high vacuum multiple layer heat insulation structure, needs to be evacuated, and generally requires vacuum degree not low
In 1.0 × 10-2Pa reduces gas discharge so that low-temperature heat-insulation pressure container has good heat-insulating property, and vacuum degree is got over
Height, insulation effect are better.Currently, for the vacuum measurement generally use vacuum meter of low-temperature heat-insulation pressure container, vacuum meter by
Control system and vacuum gauge two parts composition；The type of wherein vacuum gauge has Bourdon rule, thin-film electro content regulation, Pi Lani electricity
Hinder many kinds of rule, thermocouple rule, hot cathode ioization gauge, Penning gauge etc..Existing vacuum meter be difficult directly apply to it is low
Vacuum measurement is carried out in warm adiabatic pressure container, the bad situation of obturation effect usually occurs, and causes measurement accuracy universal
It is not high, or lead to the damage of vacuum gauge, and be not easy to replace after damaging.
Utility model content
Place in view of the shortcomings of the prior art, the purpose of this utility model is to provide one kind being exclusively used in pressure vessel
Binary channels vacuum measuring device, the vacuum measurement of pressure vessel can be carried out, it is very easy to use, improve pressure appearance
The vacuum measurement precision of device.
The purpose of this utility model is achieved through the following technical solutions：
A kind of binary channels vacuum measuring device being exclusively used in pressure vessel, including valve body, the valve inner have first
Tube chamber, the second tube chamber and hand-operated valve installation cavity, the valve inner center have center bore, first tube chamber, the second pipe
Chamber, hand-operated valve installation cavity are connected with the center bore of valve body respectively；It is equipped with outside the valve body and to be connected with the first tube chamber
First flange pipe fitting, the valve body outside are equipped with the second flange pipe fitting being connected with the second tube chamber；Outside the valve body
Valve seat is installed, the manual valve module of vacuum, the manual valve module of vacuum are equipped in the hand-operated valve installation cavity of the valve inner
For controlling the break-make being connected between the second tube chamber and the first tube chamber, it is equipped on the valve seat and is connected with the manual valve module of vacuum
The manual valve regulation spiral cover of vacuum connect；The first flange pipe fitting has vacuum survey by first flange component detachable connection
Quantity sensor, the second flange pipe fitting have vacuum pipe by second flange component detachable connection.
In order to be better achieved the utility model, the valve body is in integrally cylindrical shape, the valve body have left side,
Right side and sidewall surfaces, for the sidewall surfaces between left side and right side, the valve seat is installed on the left end of valve body
On face, the first flange pipe fitting is installed in the sidewall surfaces of valve body, and the second flange pipe fitting is installed on valve body
On right side.
Preferably, the valve seat is installed on by the way that screw C is detachable on the left side of valve body.
Preferably, the first flange component is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with
Through-hole A, first CF16 ring flange are connect with first flange pipe fitting, and second CF16 ring flange connects with vacuum measurement sensor
It connects, coordinates in the through-hole A of two CF16 ring flanges and screw A is installed.
Preferably, the second flange component is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with
Through-hole B, first CF16 ring flange are connect with second flange pipe fitting, and second CF16 ring flange is connect with vacuum pipe, and two
Cooperation is equipped with screw B in the through-hole B of a CF16 ring flanges.
Preferably, the valve body, first flange pipe fitting, second flange pipe fitting, valve seat, the manual valve module of vacuum are equal
It is manufactured by stainless steel material.
Preferably, being welded between the first flange pipe fitting and valve body using argon arc welding is closed；Described second
It is welded between flanged joint and valve body using argon arc welding is closed.
Preferably, the manual valve module of vacuum includes control valve rod, valve rod integrally T-shaped shape, control valve are controlled
Bar bottom compresses and is connected with O-ring seals.
Preferably, the vacuum measurement sensor external package is equipped with protective cover.
The utility model compared with the prior art, has the following advantages and advantageous effect：
The utility model binary channels vacuum measuring device directly can accurately measure the vacuum degree of pressure vessel, make
With very convenient, the vacuum measurement precision of pressure vessel is improved；The utility model Integral sealing is had excellent performance, vacuum leakage
Rate is reduced to 1.0 × 10-11Pa·m3/s。
Description of the drawings
Fig. 1 is the structural schematic diagram of the utility model.
Wherein, entitled corresponding to the reference numeral in attached drawing：
1- valve bodies, 2- first flange pipe fittings, 3- second flange pipe fittings, 4- valve seats, the manual valve regulation of 5- vacuum
Spiral cover, 6- first flange components, 7- screws A, 8- vacuum measurement sensor, 9- second flange components, 10- screw B,
11- vacuum pipes.
Specific implementation mode
The utility model is described in further detail with reference to embodiment.
Embodiment
As shown in Figure 1, a kind of binary channels vacuum measuring device being exclusively used in pressure vessel, including valve body 1 and vacuum measurement
There is the first tube chamber, the second tube chamber and hand-operated valve installation cavity, 1 inside center of valve body to have center bore for instrument, 1 inside of valve body,
First tube chamber, the second tube chamber, hand-operated valve installation cavity are connected with the center bore of valve body 1 respectively；1 outside of valve body is equipped with and first
The first flange pipe fitting 2 that tube chamber is connected, 1 outside of valve body are equipped with the second flange pipe fitting 3 being connected with the second tube chamber.Valve
Valve seat 4 is installed, the hand-operated valve installation cavity inside valve body 1 outside body 1（There is the manual valve module of vacuum in the hand-operated valve installation cavity
Bellows）In be equipped with the manual valve module of vacuum, the manual valve module of vacuum is connected to for controlling between the second tube chamber and the first tube chamber
Break-make, the manual valve regulation spiral cover of the vacuum being connected with the manual valve module of vacuum 5 is installed on valve seat 4.The manual valve group of vacuum
Part includes control valve rod, and integrally T-shaped shape, control stem bottom compression are connected with O-ring seals to control valve rod, in use,
The manual 5 adjusting control valve rod of valve regulation spiral cover of vacuum drives O-ring seals elevating movement in bellows elevating movement, control valve rod
Realize the break-make being connected between the second tube chamber of control and the first tube chamber.First flange pipe fitting 2 is removable by first flange component 6
The formula of unloading is connected with vacuum measurement sensor 8, and second flange pipe fitting 3 has vacuum by 9 detachable connection of second flange component
Pipeline 11.The preferred valve body 1 of the utility model, first flange pipe fitting 2, second flange pipe fitting 3, valve seat 4, vacuum hand-operated valve
Component is manufactured by stainless steel material.Vacuum measurement sensor 8 is electrically connected with vacuum measuring instrument, and vacuum measuring instrument is vacuum
Measurement sensor 8 provides required electric energy, and vacuum measurement sensor 8 conveys the vacuum degree feelings for measuring gained to vacuum measuring instrument
Condition.
The vacuum measurement sensor 8 of the utility model select it is composite evacuated regulate, the outside of vacuum measurement sensor 8 package is set
There is protective cover.Protective cover plays the electrical connection terminal of protection vacuum measurement sensor 8, when current vacuum level need not be measured,
Using the electrical connection terminal of protective cover protection vacuum measurement sensor 8, extraneous factor damage vacuum measurement sensor 8 is prevented；When
When needing to measure current vacuum level, protective cover is removed, connection signal line can measurement of vacuum.The preferred vacuum of the utility model
The material of measurement sensor 8 is stainless steel and ceramics, and vacuum welding contact technique is argon arc welding, and vacuum measurement sensor 8 can be resistant to
The vacuum leak rate of 200 DEG C of high temperature, vacuum measurement sensor 8 is Q≤1.0 × 10-11Pa·m3/s.Vacuum measurement sensor 8
Operating temperature is -35 DEG C~70 DEG C, and the working relative humidity of vacuum measurement sensor 8 is≤95%.The preferred vacuum of the utility model is surveyed
Quantity sensor 8 is regulated to be composite evacuated, when vacuum degree is in 1.0 × 100Pa~1.0 × 105When Pa, using heat-conduction principle, when
Vacuum degree is in 1.0 × 100Pa~1.0 × 10-5When Pa, principle is ionized using high vacuum.
As shown in Figure 1, it is in cylindrical shape that valve body 1 is whole, valve body 1 has left side, right side and sidewall surfaces, side wall
Between left side and right side, valve seat 4 is installed on the left side of valve body 1 on surface, and first flange pipe fitting 2 is installed on valve
In the sidewall surfaces of body 1, second flange pipe fitting 3 is installed on the right side of valve body 1.The valve seat 4 of the utility model passes through spiral shell
C is detachable is installed on the left side of valve body 1 for nail.It is adopted between the preferred first flange pipe fitting 2 of the utility model and valve body 1
It is welded with argon arc welding is closed；It is welded between second flange pipe fitting 3 and valve body 1 using argon arc welding is closed.
As shown in Figure 1, first flange component 6 is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with logical
Hole A, first CF16 ring flange are connect with first flange pipe fitting 2, and second CF16 ring flange connects with vacuum measurement sensor 8
It connects, coordinates in the through-hole A of two CF16 ring flanges and screw A7 is installed.
As shown in Figure 1, second flange component 9 is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with logical
Hole B, first CF16 ring flange are connect with second flange pipe fitting 3, and second CF16 ring flange is connect with vacuum pipe 11, and two
Cooperation is equipped with screw B10 in the through-hole B of a CF16 ring flanges.
The operation principle of the utility model is as follows：
The vacuum pipe 11 of the utility model directly with tested tank body（Including pressure vessel）On measuring mouth sealing welding.
In use, by the connection type of manual 5 application valve body of valve regulation spiral cover, 1 internal chamber of vacuum, to control medium each
The indoor break-make of chamber.In use, first by shapes that is evacuated such as valve body 1, first flange pipe fitting 2, second flange pipe fittings 3
Vacuum measurement sensor 8 is connected by first flange component 6 with first flange pipe fitting 2, is sensed by vacuum measurement by state
Device 8 is to being tested tank body（Including pressure vessel）It carries out vacuum measurement and transmits measurement result to vacuum measuring instrument, vacuum
Measuring instrumentss parse the measurement result transmitted from vacuum measurement sensor 8 and externally export digital quantity.
Vacuum measurement sensor 10 uses composition metal vacuum gauge, when vacuum degree is in 1.0 × 100Pa~1.0 × 105Pa
When, using heat-conduction principle, when vacuum degree is in 1.0 × 100Pa~1.0 × 10-5When Pa, principle is ionized using high vacuum.Wherein,
Heat-conduction principle refers to that the wire of a tensioning in regulating passes to electric current I heating, and in thermal balance, the energy of input is
The sum of radiant heat transfer amount, lead heat output and gas heat output, and gas heat-transfer amount is directly proportional to air pressure in low pressure, is surveyed with this
Measure the vacuum degree of environment；It refers in high vacuum environment that high vacuum, which ionizes principle, and gas molecule is ionized generated cation
Number is typically directly proportional to density of gas molecules, can be with the vacuum degree of measuring environment with this.
The above is only the preferred embodiment of the utility model only, is not intended to limit the utility model, all at this
All any modification, equivalent and improvement etc., should be included in the utility model made by within the spirit and principle of utility model
Protection domain within.
Claims (9)
1. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel, it is characterised in that：Including valve body（1）, the valve body
（1）Inside has the first tube chamber, the second tube chamber and hand-operated valve installation cavity, the valve body（1）Inside center has center bore, institute
State the first tube chamber, the second tube chamber, hand-operated valve installation cavity respectively with valve body（1）Center bore be connected；The valve body（1）It is external
Equipped with the first flange pipe fitting being connected with the first tube chamber（2）, the valve body（1）Outside, which is equipped with, to be connected with the second tube chamber
Second flange pipe fitting（3）；The valve body（1）Outside is equipped with valve seat（4）, the valve body（1）Internal hand-operated valve installation cavity
In be equipped with the manual valve module of vacuum, the manual valve module of vacuum be used for control be connected between the second tube chamber and the first tube chamber lead to
It is disconnected, the valve seat（4）On the manual valve regulation spiral cover of the vacuum being connected with the manual valve module of vacuum is installed（5）；Described first
Flanged joint（2）Pass through first flange component（6）Detachable connection has vacuum measurement sensor（8）, the second flange
Pipe fitting（3）Pass through second flange component（9）Detachable connection has vacuum pipe（11）.
2. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State valve body（1）Whole is in cylindrical shape, the valve body（1）With left side, right side and sidewall surfaces, the sidewall surfaces
Between left side and right side, the valve seat（4）It is installed on valve body（1）Left side on, the first flange pipe fitting
（2）It is installed on valve body（1）Sidewall surfaces on, the second flange pipe fitting（3）It is installed on valve body（1）Right side on.
3. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State valve seat（4）It is installed on valve body by the way that screw C is detachable（1）Left side on.
4. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State first flange component（6）It is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with through-hole A, first CF16
Ring flange and first flange pipe fitting（2）Connection, second CF16 ring flange and vacuum measurement sensor（8）Connection, two
Cooperation is equipped with screw A in the through-hole A of CF16 ring flanges（7）.
5. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State second flange component（9）It is made of two CF16 ring flanges, two CF16 ring flanges correspondences are provided with through-hole B, first CF16
Ring flange and second flange pipe fitting（3）Connection, second CF16 ring flange and vacuum pipe（11）Connection, two CF16 flanges
Cooperation is equipped with screw B in the through-hole B of disk（10）.
6. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State valve body（1）, first flange pipe fitting（2）, second flange pipe fitting（3）, valve seat（4）, the manual valve module of vacuum is by stainless
Steel material manufactures.
7. according to a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in claim 1 or 6, feature exists
In：The first flange pipe fitting（2）With valve body（1）Between be welded using argon arc welding is closed；The second flange pipe connects
Head（3）With valve body（1）Between be welded using argon arc welding is closed.
8. according to a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in claim 1 or 6, feature exists
In：The manual valve module of vacuum includes control valve rod, and integrally T-shaped shape, control stem bottom compress connection to control valve rod
There are O-ring seals.
9. a kind of binary channels vacuum measuring device being exclusively used in pressure vessel described in accordance with the claim 1, it is characterised in that：Institute
State vacuum measurement sensor（8）Outside package is equipped with protective cover.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848869.7U CN207702126U (en) | 2017-12-26 | 2017-12-26 | A kind of binary channels vacuum measuring device being exclusively used in pressure vessel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721848869.7U CN207702126U (en) | 2017-12-26 | 2017-12-26 | A kind of binary channels vacuum measuring device being exclusively used in pressure vessel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207702126U true CN207702126U (en) | 2018-08-07 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721848869.7U Active CN207702126U (en) | 2017-12-26 | 2017-12-26 | A kind of binary channels vacuum measuring device being exclusively used in pressure vessel |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887603A (en) * | 2019-11-11 | 2020-03-17 | 合肥晶弘电器有限公司 | Vacuum degree monitoring device |
| CN114018471A (en) * | 2021-09-27 | 2022-02-08 | 中车长江车辆有限公司 | Vacuum measurement system and storage and transportation equipment |
-
2017
- 2017-12-26 CN CN201721848869.7U patent/CN207702126U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110887603A (en) * | 2019-11-11 | 2020-03-17 | 合肥晶弘电器有限公司 | Vacuum degree monitoring device |
| CN114018471A (en) * | 2021-09-27 | 2022-02-08 | 中车长江车辆有限公司 | Vacuum measurement system and storage and transportation equipment |
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