CN208505524U - A kind of vacuum meter overpressure protection apparatus - Google Patents
A kind of vacuum meter overpressure protection apparatus Download PDFInfo
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- CN208505524U CN208505524U CN201821295343.5U CN201821295343U CN208505524U CN 208505524 U CN208505524 U CN 208505524U CN 201821295343 U CN201821295343 U CN 201821295343U CN 208505524 U CN208505524 U CN 208505524U
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- ball base
- vacuum meter
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- sphere
- lower ball
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Abstract
The utility model relates to a kind of vacuum meter overpressure protection apparatus, including being connected with input pipe, the shell of efferent duct, the vacuum meter channel that input pipe and efferent duct are connected in shell is set, it is arranged in shell and is connected to input pipe and external overpressure relief channel, the first ball component in vacuum meter channel is set: including floating lower ball base, first fixed upper ball base, the first sphere being placed between floating lower ball base and the first fixed upper ball base, floating lower ball base, first air flue in connection vacuum meter channel is offered on first fixed upper ball base, the second ball component being arranged in overpressure relief channel includes fixed lower ball base, the second sphere being placed on fixed lower ball base, second air flue in connection overpressure relief channel is offered on fixed lower ball base.The normal use of vacuum meter had not only may be implemented in the utility model, but also met the low requirement of protective device cracking pressure, and when encountering compression shock, vacuum meter channel blocks rapidly and the pressure release simultaneously of overpressure relief channel, protected the safety of vacuum meter.
Description
Technical field
The utility model relates to a kind of vacuum meter overpressure protection apparatus.
Background technique
High-precision vacuum meter (being commonly called as: Pi Lani) is the important detecting instrument of gas system, due to it pressure resistance very it is low (most
It is high also can only resistance to 4bar pressure), be more unable to proof pressure impact.Therefore, in actual production process, thing that Pi Lani is broken
Part happens occasionally.
There are two types of the safeguard measures usually carried out to Pi Lani: a kind of mode is to install safety valve additional, but due to safety valve
The cracking pressure needed is very low, requires the manufacture of safety valve just very high, it is easy to cause since safety valve is not closed completely
Pipeline pollution；Another way is to take virtual protection, i.e., pressure sensor is installed on pipeline, is increased before Pi Lani pneumatic
Valve, when pipeline pressure is more than setting value, pressure sensor issues signal, touches solenoid valve and closes instrument supply gas, causes pneumatic operated valve
It closes, separates gas.Often there is lag in this process, it is effective for slowly increasing to pressure, but if being the pressure of moment
Power impact still cannot play a protective role.
Summary of the invention
The purpose of the utility model is to provide a kind of vacuum meter overpressure protection apparatus, one kind can keep off in time high pressure gas
It except vacuum meter, and is released away by release channel, thus the dedicated unit for protecting vacuum meter not broken by high pressure.
In order to achieve the above objectives, the technical solution adopted in the utility model is:
A kind of vacuum meter overpressure protection apparatus, comprising:
Shell is connected with input pipe, efferent duct,
Vacuum meter channel is arranged in the shell, and one end is connected with the input pipe, the other end and described
Efferent duct is connected,
Overpressure relief channel is arranged in the shell, one end is connected with the input pipe, the other end with it is described
The outside of shell be connected,
First ball component is arranged in the vacuum meter channel, including floating lower ball base, the first fixed upper ball base, sets
The first sphere between the floating lower ball base and the described first fixed upper ball base, the floating lower ball base, first
First air flue in the connection vacuum meter channel is offered on fixed upper ball base,
Second ball component is arranged in the overpressure relief channel, including fixed lower ball base, is placed under the fixation
The second sphere on ball seat offers second air flue in the connection overpressure relief channel on the fixation lower ball base.
Preferably, when in low pressure, vacuum or without air pressure impact conditions, the first air flue connection vacuum
Count channel；Second sphere blocks second air flue.
Preferably, when being in the slow increasing state of pressure, second air flue is connected to the overpressure relief channel.
Preferably, when being in air pressure impact conditions, first sphere will be described on the described first fixed upper ball base
The first air flue block；The second air flue connection overpressure relief channel.
Preferably, the first air flue opening towards the first sphere side described on the first fixed upper ball base
The opening of second air flue towards the second sphere side is tapered opening on mouth, the fixation lower ball base.
Preferably, second ball component further includes the second fixed upper ball base, and second sphere is placed in described
Between fixed lower ball base and the described second fixed upper ball base.
Preferably, the first air flue described on the floating lower ball base is the air drain being provided on its side and bottom surface.
Preferably, first sphere, the second sphere include steel ball core, the glue that is coated on outside the steel ball core
Layer.
Preferably, the opening of the overpressure relief one end of the channel is located at the side of another end opening.
Preferably, the shell offers interface channel, the interface channel connection input pipe with it is described
Vacuum meter channel, overpressure relief channel.
Since above-mentioned technical proposal is used, the utility model has the advantage that compared with prior art
The normal use of vacuum meter had not only may be implemented in the utility model, but also met the low requirement of protective device cracking pressure
(beginning to pressure release when pressure is more than 0.16bar), when encountering compression shock, vacuum meter channel is blocked rapidly and overpressure relief is logical
Road pressure release simultaneously, protects the safety of vacuum meter.
Detailed description of the invention
Attached drawing 1 is the main view schematic cross-sectional view of the present embodiment；
Attached drawing 2 is the schematic side view of the present embodiment；
Attached drawing 3 is the schematic top plan view of the present embodiment.
Wherein: 1, shell；10, vacuum meter channel；11, overpressure relief channel；12, interface channel；13, bottom case；14, on
Lid；20, floating lower ball base；21, the first fixed upper ball base；22, the first sphere；23, the first air flue；230, tapered opening；30, solid
Fix ball seat；31, the second fixed upper ball base；32, the second sphere；33, the second air flue；330, tapered opening；40, input pipe；41,
Efferent duct；5, plug；6, sealing ring.
Specific embodiment
The utility model is further described with reference to the accompanying drawings and embodiments:
A kind of vacuum meter overpressure protection apparatus as shown in Figs. 1-3, including shell 1, vacuum meter channel 10, vacuum meter channel
11, the first ball component and the second ball component.Wherein:
Shell 1 is connected with input pipe 40, efferent duct 41, and input pipe 40 is for accessing measurement point, and efferent duct 41 is for accessing
Vacuum meter.
Vacuum meter channel 10 is arranged in shell 1, and one end is connected with input pipe 40, the other end is connected with efferent duct 41
Logical, in the present embodiment: vacuum meter channel 10 is I shape channel.
Overpressure relief channel 11 is arranged in shell 1, one end is connected with input pipe 40, the other end and shell 1 outside
Portion is connected, in the present embodiment: overpressure relief channel 11 is the channel L, i.e. the opening of 11 one end of overpressure relief channel is located at another
Side open at one end.
In addition, offer interface channel 12 in shell 1, interface channel 12 be connected to input pipe 40 and vacuum meter channel 10,
Overpressure relief channel 11, interface channel 12 run through shell 1, and both ends are blocked by plug 5.
First ball component is arranged in vacuum meter channel 10 comprising the fixed upper ball base 21 of floating lower ball base 20, first is set
The first sphere 22 between floating lower ball base 20 and the first fixed upper ball base 21.Wherein: floating lower ball base 20 can be in vacuum meter
It floats in channel 10, the first fixed upper ball base 21 is fixed in vacuum meter channel 10, and bearing is sealed by sealing ring 6.It floats
First air flue 23 in connection vacuum meter channel 10 is offered on the fixed upper ball base 21 of lower ball base 20, first.Wherein: floating lower ball base
First air flue 23 is the air drain being provided on its side and bottom surface on 20, when normal measurement of vacuum, does not influence passing through for gas；
The opening of first air flue 23 towards 22 side of the first sphere is tapered opening 230 on first fixed upper ball base 21.First sphere 22
Using steel ball core, external cladding glue-line.
Second ball component is arranged in overpressure relief channel 11 comprising the fixed upper ball base 31 of fixation lower ball base 30, second,
The second sphere 32 being placed between fixed lower ball base 30 and the second fixed upper ball base 31.Wherein: fixed lower ball base 30, second is fixed
Upper ball base 31 is fixed in overpressure relief channel 11, and bearing is sealed by sealing ring 6.Connection is offered on fixed lower ball base 30
Second air flue 33 in overpressure relief channel 11.Wherein: second air flue 33 is towards 32 side of the second sphere on fixed lower ball base 30
Opening is tapered opening 330.Second sphere 32 is using steel ball core, external cladding glue-line.
In the present embodiment: for the ease of opening up vacuum meter channel 10, overpressure relief channel 11 in shell 1, shell 1 is adopted
With bottom case 13, upper cover 14, the first ball component, the second ball component are installed and are let out into vacuum meter channel 10, superpressure by vacuum meter channel 10
After putting in channel 11, bottom case 13, upper cover 14 are attached.
(low pressure or vacuum is impacted without air pressure) under normal circumstances, the first sphere 22 is located on floating lower ball base 20, gas warp
Cross the air drain of floating lower ball base 20, the first air flue 23 on the first fixed upper ball base 21；Second sphere 32 is located at fixed lower ball base
On 30, it is close that the spherical surface of the second sphere 32 contacts generation seal line with the tapered opening 330 for fixing the second air flue 33 on lower ball base 30
It closes, the second sphere 32 blocks the second air flue 33.
When pressure slowly increases, when 32 pressure of the second sphere is more than 0.15bar, the second sphere 32 is lifted in air pressure, and second
Sphere 32 is detached from fixed lower ball base 30, and gas passes through the second air flue 33,11 pressure release of overpressure relief channel, and system is protected.
When encountering air pressure impact, the second sphere 32 is lifted in air pressure, and the second sphere 32 is detached from fixed lower ball base 30, gas warp
Cross the second air flue 33,11 pressure release of overpressure relief channel；When floating lower ball base 20,22 pressure of the first sphere are more than 0.12bar, float
Rapid increase, the spherical surface of the first sphere 22 and first fix the first air flue on upper ball base 20 simultaneously for lower ball base 20, the first sphere 22
The 23 contact generation seal line of tapered opening 230 is closed, and the first sphere 22 fixes 23 envelope of the first air flue on lower ball base 21 for first
It is stifled, vacuum meter channel 10 is closed, plays the role of protecting vacuum meter.
The above embodiments are only for explaining the technical ideas and features of the present invention, and its object is to allow be familiar with technique
Personage can understand the content of the utility model and implement accordingly, do not limit the protection scope of the present invention.
All equivalent change or modifications according to made by the spirit of the present invention essence, should all cover the protection scope of the utility model it
It is interior.
Claims (10)
1. a kind of vacuum meter overpressure protection apparatus, it is characterised in that: include:
Shell is connected with input pipe, efferent duct,
Vacuum meter channel is arranged in the shell, and one end is connected with the input pipe, the other end and the output
Pipe is connected,
Overpressure relief channel is arranged in the shell, and one end is connected with the input pipe, the other end and the shell
The outside of body is connected,
First ball component is arranged in the vacuum meter channel, including floating lower ball base, the first fixed upper ball base, is placed in institute
The first sphere between the fixed upper ball base of floating lower ball base and described first stated, the floating lower ball base, first are fixed
First air flue in the connection vacuum meter channel is offered on upper ball base,
Second ball component is arranged in the overpressure relief channel, including fixed lower ball base, is placed in the fixation lower ball base
On the second sphere, second air flue in the connection overpressure relief channel is offered on the fixation lower ball base.
2. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: when in low pressure, vacuum or
Person is without air pressure impact conditions, the first air flue connection vacuum meter channel；Second sphere is by described
Two air flues block.
3. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: slowly increased when in pressure
State, the second air flue connection overpressure relief channel.
4. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: when in air pressure impact shape
State, first sphere block the first air flue described on the described first fixed upper ball base；Second air flue connects
Lead to the overpressure relief channel.
5. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: the fixed upper ball of described first
First air flue is towards the second gas described on the opening of the first sphere side, the fixation lower ball base on seat
The opening of road towards the second sphere side is tapered opening.
6. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: second ball component is also
Including the second fixed upper ball base, second sphere be placed in the fixation lower ball base and the described second fixed upper ball base it
Between.
7. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: on the floating lower ball base
First air flue is the air drain being provided on its side and bottom surface.
8. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: first sphere,
The glue-line that two spheres include steel ball core, are coated on outside the steel ball core.
9. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: the overpressure relief channel
The opening of one end is located at the side of another end opening.
10. a kind of vacuum meter overpressure protection apparatus according to claim 1, it is characterised in that: the shell offers
Interface channel, the interface channel connection input pipe and the vacuum meter channel, overpressure relief channel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295343.5U CN208505524U (en) | 2018-08-13 | 2018-08-13 | A kind of vacuum meter overpressure protection apparatus |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821295343.5U CN208505524U (en) | 2018-08-13 | 2018-08-13 | A kind of vacuum meter overpressure protection apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208505524U true CN208505524U (en) | 2019-02-15 |
Family
ID=65300479
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821295343.5U Active CN208505524U (en) | 2018-08-13 | 2018-08-13 | A kind of vacuum meter overpressure protection apparatus |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208505524U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060238A (en) * | 2018-08-13 | 2018-12-21 | 吴江梅塞尔工业气体有限公司 | A kind of vacuum meter overpressure protection apparatus |
-
2018
- 2018-08-13 CN CN201821295343.5U patent/CN208505524U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109060238A (en) * | 2018-08-13 | 2018-12-21 | 吴江梅塞尔工业气体有限公司 | A kind of vacuum meter overpressure protection apparatus |
| CN109060238B (en) * | 2018-08-13 | 2024-04-05 | 吴江梅塞尔工业气体有限公司 | Overpressure protection device of vacuum gauge |
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