CN110017939A - Pressure gauge is shorted - Google Patents
Pressure gauge is shorted Download PDFInfo
- Publication number
- CN110017939A CN110017939A CN201810015677.0A CN201810015677A CN110017939A CN 110017939 A CN110017939 A CN 110017939A CN 201810015677 A CN201810015677 A CN 201810015677A CN 110017939 A CN110017939 A CN 110017939A
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- Prior art keywords
- pressure gauge
- annular space
- pressure
- shorted
- pressure release
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- 230000008569 process Effects 0.000 description 2
- 230000009711 regulatory function Effects 0.000 description 2
- 229920006395 saturated elastomer Polymers 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 1
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- AEDZKIACDBYJLQ-UHFFFAOYSA-N ethane-1,2-diol;hydrate Chemical compound O.OCCO AEDZKIACDBYJLQ-UHFFFAOYSA-N 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
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- 210000001503 joint Anatomy 0.000 description 1
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Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/003—Fluidic connecting means using a detachable interface or adapter between the process medium and the pressure gauge
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0618—Overload protection
Abstract
The present invention provides a kind of pressure gauge short circuit.Pressure gauge of the present invention is shorted, comprising: joint body and pressure release component；Joint body axially offers flow channels and the pressure release passage for being connected to flow channels with ambient atmosphere；Pressure release component includes: closeouts, the first elastic component and regulating part；One end of first elastic component is connect with closeouts, and the other end of the first elastic component is connect with regulating part, and regulating part is used to for closeouts being pressed on the pressure release entrance of pressure release passage for adjusting the elastic compression power that the first elastic component is applied to closeouts, elastic compression power.Pressure gauge of the present invention, which is shorted, adjusts the elastic compression power that the first elastic component is applied to closeouts by regulating part, can be adapted for the pressure gauge for connecting different safe pressure ranges, and generalization degree is high.
Description
Technical field
The present invention relates to instrument and meter interconnection technique fields more particularly to a kind of pressure gauge to be shorted.
Background technique
Pressure gauge is frequently necessary in use commonly used to the pressure of liquid or gas in measurement pipeline by pressure
Table is disassembled and then is verified to its precision, in order to facilitate its disassembly, pressure gauge generally by pressure gauge be shorted with it is to be measured
Piping connection.
Pressure gauge is shorted the effect for not only acting as and being connected to inside pipeline to be measured and pressure gauge, additionally it is possible to avoid the pressure gauge from being more than
Safe pressure range and damage.In the prior art, it is generally offered on pressure gauge short circuit and is connected to pipeline and pressure gauge to be measured
Flow channels and pressure release passage for being connected to flow channels and ambient atmosphere, one is provided in pressure release passage can be with
The closure diaphragm for bearing pressure gauge safe pressure is used to block the pressure release passage.When the pressure in pipeline to be measured is more than pressure gauge
When safe pressure range, blocks diaphragm and washed open by loine pressure, to be lowered into the pressure of the medium of pressure gauge, avoid pressure gauge
It is damaged more than safe pressure range.
But a fixed safe pressure can only be arranged in the closure diaphragm that pressure gauge is shorted, and can not be suitable for not TongAn
The pressure gauge of total pressure range, generalization degree are low.For the pressure gauge with different safe pressures, need to be equipped with different pressures
Power table is shorted, and increases measuring tool cost.
Summary of the invention
The present invention provides a kind of pressure gauge short circuit, is shorted the low technology of generalization degree to solve pressure gauge in the prior art
Problem.
The present invention provides a kind of pressure gauge short circuit, comprising: joint body and pressure release component；The joint body axially opens up
There are flow channels and the pressure release passage for being connected to the flow channels with ambient atmosphere；The pressure release component includes: envelope
Blocking piece, the first elastic component and regulating part；One end of first elastic component is connect with the closeouts, first elastic component
The other end is connect with the regulating part, and the regulating part is for adjusting the bullet that first elastic component is applied to the closeouts
Property pressing force, the elastic compression power is used to for the closeouts to be pressed on the pressure release entrance of the pressure release passage.
Pressure gauge as described above is shorted, wherein the regulating part is provided with external screw thread, and the inner wall of the pressure release passage is set
It is equipped with the internal screw thread matched with the external screw thread.
Pressure gauge as described above is shorted, wherein what the inner wall that the regulating part is slidably installed in the pressure release passage was opened up
In sliding slot.
Pressure gauge as described above is shorted, wherein piston is provided in the flow channels, and the piston can be along described
Flow channels axial movement；The piston by the flow channels be separated into the first inner chamber of pipeline connection to be measured and with institute
State the second inner chamber of pressure gauge connection；For filling anti-icing fluid in the second inner chamber；The pressure release import of the pressure release passage with
The first inner chamber or second inner chamber connection.
Pressure gauge as described above is shorted, and further includes the pipe tub assembly being arranged in the flow channels；The pipe bucket group
Part includes inner tube and the outer barrel that is set in outside said inner tube；The first annular space is formed between said inner tube and said tub, it is described
The second annular space is formed between outer barrel and the side wall of the flow channels, the side wall of said tub bottom end offers first through hole；Institute
It states piston to be located in first annular space, and first annular space is separated into upper annular space and lower annular space；The upper end of said inner tube
It is connected to the upper annular space, the lower end of said inner tube and the pipeline connection to be measured；The first through hole is connected to the lower annular space
With second annular space, and second annular space is connected to the pressure gauge；Wherein, the first inner chamber include said inner tube and
The upper annular space, the second inner chamber include the lower annular space, the first through hole and second annular space.
Pressure gauge as described above is shorted, wherein the inner surface of the upper annular space is provided with the first limited step；And/or
The inner surface of the lower annular space is provided with the second limited step, and second limited step is located above the first through hole.
Pressure gauge as described above is shorted, wherein the joint body includes main casing and is connected to the main casing
First connector and the second connector at both ends, first connector axially offer the first centre bore, and second connector is axially opened
Equipped with the second centre bore；First centre bore is connected to the pipeline to be measured and said inner tube, and second centre bore is connected to institute
State pressure gauge and second annular space；The connection of the bottom end of first connector and said tub.
Pressure gauge as described above is shorted, wherein said tub is ceramic bucket.
Pressure gauge as described above is shorted, wherein it is provided with annular groove at the top of first connector, said tub
Bottom end is plugged in the annular groove；The top surface of said tub is provided with connection ring, and the second bullet is arranged with outside the connection ring
Property part, one end of second elastic component abuts with the top surface of said tub, the other end of second elastic component and described the
Two connectors abut；The connection ring offers the second through-hole, for being connected to second annular space and second centre bore.
Pressure gauge as described above is shorted, wherein is provided with the note being connected to the second inner chamber on second connector
Enter channel, for injecting the anti-icing fluid.
Pressure gauge provided by the invention is shorted, comprising: joint body and pressure release component；Joint body axially offers overcurrent
Channel and pressure release passage for being connected to flow channels with ambient atmosphere；Pressure release component includes: closeouts, the first elasticity
Part and regulating part；One end of first elastic component is connect with closeouts, and the other end of the first elastic component is connect with regulating part, and is adjusted
Part is used to closeouts being pressed on pressure release for adjusting the elastic compression power that the first elastic component is applied to closeouts, elastic compression power
The pressure release entrance in channel.Pressure gauge provided by the invention, which is shorted, is applied to closeouts by regulating part the first elastic component of adjusting
Elastic compression power, so that pressure gauge, which is shorted, can be adapted for the pressure gauge of different pressures table safety pressure, generalization degree original text, and
When the pressure in flow channels is more than elastic compression power, closeouts are moved axially along pressure release passage, so that pressure release passage and mistake
Circulation road connection, realizes the release to flow channels, and pressure gauge is avoided to be more than safe pressure range and damage.
Detailed description of the invention
Described in detail below, the above and other objects, features and advantages general of the embodiment of the present invention by referring to accompanying drawing
It becomes more clearly understood from.In the accompanying drawings, by by example and it is unrestricted in a manner of multiple embodiments of the invention are said
It is bright, in which:
Fig. 1 is the structural schematic diagram that pressure gauge of the present invention is shorted embodiment one；
Fig. 2 is the structural schematic diagram that pressure gauge of the present invention is shorted embodiment two；
Fig. 3 is the structural schematic diagram that pressure gauge of the present invention is shorted embodiment three；
Fig. 4 is the structural schematic diagram that pressure gauge of the present invention is shorted example IV.
Description of symbols:
100: joint body；110: main casing；
111: contacting wall；120: the first connectors；
121: the first centre bores；130: the second connectors；
131: the second centre bores；132: injection channel；
133: seal head；200: flow channels；
210: first inner chamber；220: second inner chamber；
300: pressure release component；310: closeouts；
320: the first elastic components；330: regulating part；
400: pressure release passage；410: first passage；
420: second channel；430: third channel；
500: piston；510: sealing ring；
600: pipe tub assembly；610: inner tube；
611: central passage；620: outer barrel；
621: outer barrel side wall；622: outer barrel roof；
623: bottom end；624: first through hole；
625: connection ring；630: the first annular spaces；
631: upper annular space；632: lower annular space；
640: the second annular spaces；700: the first limited steps；
800: the second limited steps；900: the second elastic components.
Specific embodiment
Pressure gauge is commonly used to the pressure of liquid or gas in measurement pipeline, and often disassembly verifies pressure gauge for convenience
Precision is generally shorted and piping connection to be measured by pressure gauge without damaging pressure gauge connection screw thread, pressure gauge.
Pressure gauge is shorted the effect for not only acting as and being connected to inside pipeline to be measured and pressure gauge, additionally it is possible to avoid the pressure gauge from being more than
Safe pressure range and damage.In the prior art, it is generally offered on pressure gauge short circuit and is connected to pipeline and pressure gauge to be measured
Flow channels and pressure release passage for being connected to flow channels and ambient atmosphere, one is provided in pressure release passage can be with
The closure diaphragm for bearing pressure gauge safe pressure is used to block the pressure release passage.When the pressure in pipeline to be measured is more than pressure gauge
When safe pressure range, blocks diaphragm and washed open by loine pressure, to be lowered into the pressure of the medium of pressure gauge, avoid pressure gauge
It is damaged more than safe pressure range.
But a fixed safe pressure can only be arranged in the closure diaphragm that pressure gauge is shorted, and can not be suitable for not TongAn
The pressure gauge of total pressure range, generalization degree are low.For the pressure gauge with different safe pressures, need to be equipped with different pressures
Power table is shorted, and increases measuring tool cost.In oilfield process, lead to gas dehydration effect due to various reasons not
It is good, cause to carry free water in gas, it is high that gas is saturated dew point, so that natural gas is saturated elutriation when by pressure gauge throttling
Out, and then hydrate is caused to generate frozen block pressure gage spring tube, indicating pressure gauge measures misalignment.Also, exist in crude oil free
Water easily freezes in low temperature environment and blocks pressure gage spring tube, and contains many foreign particles in crude oil, and crude oil directly contacts pressure
Power table bourdon tube is also easy retaining pressure table bourdon tube, causes pressure gauge misalignment.
The pressure gauge high and with antifreeze function in order to solve the above technical problem, the present invention provides a kind of generalization degree
It is shorted.
The embodiment of the present invention is described below in detail, examples of the embodiments are shown in the accompanying drawings, wherein from beginning to end
Same or similar label indicates same or similar element or element with the same or similar functions.Below with reference to attached
The embodiment of figure description is exemplary, it is intended to is used to explain the present invention, and is not considered as limiting the invention.
Firstly the need of explanation, noun of locality "outside" refers to the side far from joint body longitudinal center line in the present invention,
"inner" refers to close to the side of joint body longitudinal center line.Noun of locality "upper", "top" are referred to close to pressure gauge in the present invention
Side, the i.e. direction A in attached drawing 4, "lower", "bottom" are close to pipe under test side, the i.e. direction B in attached drawing 4.
Fig. 1 is the structural schematic diagram that pressure gauge of the present invention is shorted embodiment one, and referring to Fig.1, the present embodiment pressure gauge is shorted,
It include: joint body 100 and pressure release component 400；Joint body 100 is axial to offer flow channels 200, and is used for overcurrent
The pressure release passage 400 that channel 200 is connected to ambient atmosphere；Pressure release component 300 includes: closeouts 310,320 and of the first elastic component
Regulating part 330；One end of first elastic component 320 is connect with closeouts 310, the other end and regulating part 330 of the first elastic component 320
Connection, and regulating part 330 is used for adjusting the elastic compression power that the first elastic component 320 is applied to closeouts 310, elastic compression power
In closeouts 310 are pressed at the pressure relief opening of pressure release passage 400.
One end of joint body 100 and piping connection to be measured, the other end are connect with pressure gauge.Specifically, joint body 100
Both ends screw thread can be set, connect respectively with pipeline to be measured and pressure gauge；Alternatively, joint body 100 can also pass through flange
It is connect respectively with pipeline (not shown) to be measured and pressure gauge (not shown).Butt joint ontology 100 of the present invention and pipeline to be measured and pressure
The connection type of power table is not especially limited.The axial direction of joint body 100 offers flow channels 200, and flow channels 200 are used for
Be connected to pipeline and pressure gauge to be measured so that the fluid in pipeline to be measured by flow channels 200 enter pressure gauge, thus measure to
Pressure in test tube road.
Pressure release passage 400 is provided on joint body 100, for being connected to flow channels 200 with ambient atmosphere, to treat
Fluid in test tube road carries out pressure release.Wherein, pressure release passage 400 can be individual pipeline, pass through connector and joint body 100
Connection；Alternatively, pressure release passage 400 can also be integrally formed with joint body 100, i.e., it is logical that pressure release is offered on joint body 100
Road 400.
Pressure release component 300 includes closeouts 310, the first elastic component 320 and regulating part 330, and closeouts 310 are arranged in pressure release
In channel 400, one end of the first elastic component 320 is connect with closeouts 310, the other end and regulating part 330 of the first elastic component 320
Connection；Regulating part 330 is for adjusting the elastic compression power that the first elastic component 320 is applied to closeouts 310.Wherein, which presses
Clamp force is equal to the safe pressure of pressure gauge.Closeouts 310 can be spherical, the correspondingly corresponding ball of setting in pressure release passage 400
Face is contacted with closeouts 310；Alternatively, closeouts 310 can also be coniform, correspondingly setting is corresponding in pressure release passage 400
The conical surface is contacted with closeouts 310；Again alternatively, closeouts 310 can be column, ellipticity or irregular shape etc., the present invention
It is not specifically limited.First elastic component 320 can be spring, the first elastic component 320 can respectively with closeouts 310, regulating part
330 threaded connections, clamping etc.；First elastic component 320 is also possible to rubber parts, the first elastic component 320 can respectively with closeouts
310, the vulcanization of regulating part 330 connection, clamping etc., the present invention is to the connection type with elastic component and its with closeouts and regulating part
It is not especially limited.
Before testing pressure, regulating part 330 is first adjusted, to adjust the bullet that the first elastic component 320 is applied to closeouts 310
Property pressing force, wherein elastic compression power is equal to the safe pressure of pressure gauge that will be connected.Then by pressure gauge be shorted respectively with
Pipeline to be measured is connected with pressure gauge, carries out pressure detecting.At this point, closeouts 310 are under the action of the first elastic component 320 by pressure release
Channel 400 and flow channels 200 are separated, and the fluid in pipeline to be measured enters pressure gauge by flow channels 200 and carries out pressure survey
It tries, the Fluid pressure in pipeline to be measured is shown on pressure gauge.It is to be measured when the pressure in pipeline to be measured is more than elastic compression power
Pressure in pipeline pushes closeouts 310 to move axially along pressure release passage 400, so that pressure release passage 400 and flow channels 200 connect
It is logical, pressure release is carried out to the fluid of flow channels 200, avoid the pressure in flow channels 200 be more than pressure gauge safe pressure and
Damage pressure gauge.When pressure gauge short circuit is connect with the pressure gauge of other ranges, adjusting regulating part 330 makes the first elastic component 320
It is applied to the corresponding elastic compression power of closeouts 310, improves the versatility of pressure gauge short circuit.
Certainly, the present embodiment pressure gauge short circuit can also be provided with alarm in pressure release passage 400.Stream in pipeline to be measured
When body pressure is more than the safe pressure of pressure gauge, illustrate that the range of pressure gauge at this time is too small, is not suitable for test currently to test tube
The pressure on road, the pressure gauge for needing replacing a greater amount of journeys are detected.For example, sensor is arranged in pressure release passage 400, sense
Device is electrically connected with alarm, when sensor detects pressure release in pressure release passage 400, is delivered a signal to alarm, is reminded detection
Personnel replace the pressure gauge of wide range in time, guarantee the accuracy of Data Detection.Alarm can with warning lamp and/or sound report
Alert device etc., the present invention is not specifically limited.In addition, fluid outflow when in order to avoid pressure release in pipeline to be measured cause waste or
Environment etc. is polluted, can be flowed out in one end setting collection device of the pressure release passage 400 far from closeouts 310, collection pressure release
Fluid in pipeline to be measured.
Pressure gauge provided in this embodiment is shorted, comprising: joint body and pressure release component；Joint body axially offered
Circulation road and pressure release passage for being connected to flow channels with ambient atmosphere；Pressure release component includes: closeouts, the first bullet
Property part and regulating part；One end of first elastic component is connect with closeouts, and the other end of the first elastic component is connect with regulating part, and is adjusted
Section part is let out for adjusting the elastic compression power that the first elastic component is applied to closeouts, elastic compression power for being pressed on closeouts
The pressure release entrance of pressure passageway.Pressure gauge provided by the invention, which is shorted, is applied to closeouts by regulating part the first elastic component of adjusting
Elastic compression power so that pressure gauge, which is shorted, can be adapted for the pressure gauge of different pressures table safety pressure, generalization degree original text,
And when the pressure in flow channels be more than elastic compression power when, closeouts along pressure release passage move axially so that pressure release passage with
Flow channels connection, realizes the release to flow channels, and pressure gauge is avoided to be more than safe pressure range and damage.
Regulating part realizes in a kind of embodiment of regulatory function that regulating part 330 is provided with external screw thread (not shown), pressure release
Channel 400 is provided with the internal screw thread (not shown) matched with external screw thread.Specifically, regulating part 330 is provided with external screw thread, pressure release
Channel 400 is provided with the internal screw thread matched with the external screw thread, is adjusted by the thread regulating part 330 and is located in pressure release passage 400
Position, to adjust the decrement of the first elastic component 320, so that adjusting the first elastic component 320 is applied to the elasticity of closeouts 320
Pressing force improves the logical of pressure gauge short circuit so that pressure gauge is shorted the voltmeter that can be adapted for different safe pressure ranges
The property used.Wherein, screw thread can be angular thread, rectangular thread etc., be not specifically limited herein.
Regulating part realizes in the another embodiment of regulatory function that regulating part 330 is slidably installed in the inner wall of pressure release passage 400
In the sliding slot (not shown) opened up.Specifically, regulating part 330 is provided with sliding rail, and pressure release passage 400 is provided with to match with sliding rail
The sliding slot of conjunction, regulating part 330 and pressure release passage 400 allow regulating part 330 along letting out by the mutual cooperation of sliding rail and sliding slot
Pressure passageway 400 moves axially, and changes regulating part 330 and is located at the position in pressure release passage 400, to adjust the first elastic component 320
Decrement, so that the elastic compression power that the first elastic component 320 is applied to closeouts 320 is adjusted, so that pressure gauge short circuit can fit
For the voltmeter of different safe pressure ranges, the versatility of pressure gauge short circuit is improved.Certainly, in the present embodiment, adjust
Part 330 further includes locking member, and after regulating part 330 is slided relative to sliding slot is set to predetermined position, locking member locks regulating part 330
It is that the first elastic component 320 has default decrement, to be applied to the predetermined elasticity pressing force of closeouts 320 in predetermined position.
Locking member can be the structures such as buckle, lock, be not specifically limited herein.
As a preferred embodiment, pressure release passage 400 includes that first passage 410, second channel 420 and third are logical
Road 430.Wherein, the cross section of first passage 410, second channel 420 and third channel 430 can be round, ellipse,
It can be rectangular Deng polygons, alternatively, can also be that irregular shape, the present invention are not specifically limited.Preferably, first is logical
The cross section in road 410, second channel 420 and third channel 430 is circle.First passage 410 is connected to flow channels 200,
So that the fluid in pipe under test enters first passage 410 by flow channels 200.Closeouts are provided in second channel 420
310, the first elastic component 320 and regulating part 330.Third channel 430 is connected to second channel 420.At this point, first passage 410 is
Pressure release import, third channel 430 are pressure relief vent.
Regulating part 330 is connect with second channel 420, and regulating part 330 can along the axial movement of second channel 420, with
Adjust the elastic compression power that the first elastic component 320 is applied to closeouts 320.Specifically, regulating part 330 and second channel 420 can
To be that screw thread is adjusted；Alternatively, regulating part 330 and second channel 420 are provided with mutually matched sliding rail and sliding slot, so that regulating part
330 can slide along second channel 420, to adjust the decrement of the first elastic component 320, be applied with adjusting the first elastic component 320
Add to the elastic compression power of closeouts 320.Alternatively, regulating part 330 and second channel 420, which are provided with other, has lock function
Movable mechanism moves regulating part 330 along second channel 420, to adjust the decrement of the first elastic component 320, from
And adjust the elastic compression power that the first elastic component 320 is applied to closeouts 320.
In some embodiments, referring to Fig.1, the cross-sectional area of closeouts 310 is greater than the cross section of first passage 410
Product, and it is less than the cross-sectional area of second channel 420.At this point, having circulation empty between the first elastic component 320 and second channel 420
Between.For example, the first elastic component 320 is spring, there is free air space between second channel 420；Alternatively, the first elastic component 320
It is rubber parts, there is annular flow space between rubber parts and second channel 420.Third channel 430 can be set logical second
The side in road 420, is connected to free air space；Alternatively, regulating part 330 is axial to offer third channel 430.At this point, having served as circulating
When pressure in road 200 is more than elastic compression power, closeouts 310 can be moved axially along second channel 420, so that second channel
420 are connected to third channel 430, so that the fluid in flow channels 200 passes sequentially through first passage 410, second channel
420 and third channel 430 carry out pressure release, avoid gauge measurement be more than safe pressure range and damage.
In further embodiments, structural schematic diagram of the Fig. 2 for pressure gauge of the present invention short circuit embodiment two, reference Fig. 2, the
Triple channel 430 is provided with the side wall of second channel 420.When the pressure in flow channels 200 is more than elastic compression power, closeouts
310 can move axially along second channel 420, so that first passage 410 is directly connected to third channel 130, so that mistake
Fluid in circulation road 200 passes sequentially through first passage 410 and third channel 430 and carries out pressure release, avoids the gauge measurement from being more than
Safe pressure range and damage.
Fig. 3 is the structural schematic diagram that pressure gauge of the present invention is shorted embodiment three, referring to Fig. 3, on the basis of above-described embodiment
On, piston 500 is provided in the present embodiment flow channels 200, and piston 500 can be moved axially along flow channels 200；Piston
500 second inner chambers that flow channels 200 are separated into the first inner chamber 210 with pipeline connection to be measured and are connected to pressure gauge
220；For filling anti-icing fluid in second inner chamber 220；The pressure release import and first inner chamber 210 or second inner chamber of pressure release passage 400
220 connections.
Specifically, piston 500 is arranged in flow channels 200, and piston 500 is provided with the sealed groove of annular, sealing ring
510 are contained in sealed groove, and the fluid in first inner chamber 210 and second inner chamber 220 is avoided to mix.Sealing ring 510 can be with
Setting one, also can be set multiple, such as two, three etc., the axially spaced-apart along piston 500 is arranged.
Flow channels 200 are separated into first inner chamber 210 and second inner chamber 220 by piston 500, wherein first inner chamber 210
It is connected to pipeline connection to be measured, second inner chamber 220 with pressure gauge.When pressure gauge is shorted connection with pipeline to be measured, to test tube
Fluid in road enters in first inner chamber 210, and fluid forces piston 500 is mobile towards second inner chamber 220, compresses second inner chamber
Anti-icing fluid in 220 reads the Fluid pressure in pipeline to be measured so that anti-icing fluid generates pressure to pressure gauge from pressure gauge.
The pressure gauge of the present embodiment is shorted, so that the anti-icing fluid of relative clean free from admixture is directly contacted with pressure gauge, is avoided to test tube
The fluid containing impurity in road is contacted with pressure gauge, guarantee in cold environment pressure gauge be shorted and pressure gauge in liquid not
It can freeze, block, pressure gauge is shorted and the liquid icing in pressure gauge, blocking cause pressure gauge test to be not allowed to solve
Problem.
In the present invention, it is anti-to can be alcohol-water type anti-icing fluid, sweet oil-water type anti-icing fluid, ethylene glycol-water type for anti-icing fluid
Freeze liquid etc., those skilled in the art can select according to the actual situation, and the present invention is not specifically limited.
In some embodiments, the pressure release import of pressure release passage 400 is connected to first inner chamber 210.When in pipeline to be measured
Pressure is more than elastic compression power, and the Fluid pressure of first inner chamber 210 is more than elastic compression power, pushes closeouts 310 logical along pressure release
Road 400 moves axially, so that pressure release passage 400 is connected to first inner chamber 210, carries out pressure release to the fluid in first inner chamber 210,
Pressure gauge is avoided to be more than safe pressure range and damage.
In further embodiments, the pressure release import of pressure release passage 400 is connected to second inner chamber 220.When in pipeline to be measured
Pressure be more than elastic compression power, the Fluid pressure of first inner chamber 210 is more than elastic compression power, pushes piston 500 towards second
Inner cavity 220 is mobile, so that the antifreeze hydraulic coupling in second inner chamber 220, also above elastic compression power, anti-icing fluid pushes closeouts 310
It is moved axially along pressure release passage 400, so that pressure release passage 400 is connected to second inner chamber 220, to antifreeze in second inner chamber 220
Liquid carries out pressure release, and pressure gauge is avoided to be more than safe pressure range and damage.
Fig. 4 is the structural schematic diagram that pressure gauge of the present invention is shorted example IV, and referring to Fig. 4, pressure gauge short circuit further includes setting
Set the pipe tub assembly 600 in flow channels 200；Pipe tub assembly 600 includes inner tube 610 and is set in outer outside inner tube 610
Bucket 620；The first annular space 630 is formed between inner tube 610 and outer barrel 620, is formed between outer barrel 620 and the side wall of joint body 100
The side wall of second annular space 640,620 bottom end 623 of outer barrel offers first through hole 624；Piston 500 is located in the first annular space 630, and
First annular space 630 is separated into upper annular space 631 and lower annular space 632；The upper end of inner tube 610 is connected to upper annular space 631, inner tube 610
Lower end and pipeline connection to be measured；First through hole 624 is connected to lower annular space 632 and the second annular space 640, and the second annular space 640 and pressure
The connection of power table；Wherein, first inner chamber 210 includes inner tube 610 and upper annular space 631, and second inner chamber 220 includes lower annular space 632, first
Through-hole 624 and the second annular space 640.
Specifically, pipe tub assembly 600 is arranged in flow channels 200；Pipe tub assembly 600 includes inner tube 610 and outer barrel
620.Outer barrel 620 includes outer barrel side wall 621 and outer barrel roof 622, and outer barrel side wall 621 and outer barrel bottom wall 622 surround accommodation space,
Outer barrel 620 is set in the outside of inner tube 610.610 axial centre of inner tube offers central passage 611.Inner tube 610 and outer barrel 620
Between form the first annular space 630, the second annular space 640, the bottom of outer barrel 620 are formed between outer barrel 620 and the side wall of flow channels 200
The outer barrel side wall 621 at end 623 offers first through hole 624.Piston 500 is annular, and piston 500 is set in inner tube 610, piston
500 inner ring surface and the appearance face contact of 610 side wall of inner tube, and the outer ring surface of piston 500 and the inner surface of outer barrel side wall 621 connect
Touching, is separated into upper annular space 631 and lower annular space 632 for the first annular space 630.Moreover, the inner ring surface and outer ring surface of piston 500 are provided with
Groove is provided with sealing ring in groove, avoids annular space 631 and the different fluid media (medium) mixing of lower annular space 632.
The lower end of the central passage 611 of inner tube 610 and pipeline connection to be measured, upper end is connected to upper annular space 631.Wherein, interior
Pipe 610 can have gap with outer barrel roof 622 close to one end of outer barrel roof 622, so that central passage 611 and upper annular space
631 connections；Alternatively, inner tube 610 is fixedly connected close to one end of outer barrel roof 622 with outer barrel roof 622, the side wall of inner tube 610
Through-hole is offered, so that central passage 611 is connected to upper annular space 631.Fluid is entered upper by central passage 611 in pipeline to be measured
Annular space 631 applies pressure to piston 500, pushes piston 500 mobile towards lower annular space 631.
Lower annular space 632 is connected to by first through hole 624 with the second annular space 640, and the second annular space 640 is connected to pressure gauge,
Anti-icing fluid is filled in annular space 632, first through hole 624 and the second annular space 640, and piston 500 bears fluid in pipeline to be measured
Pressure, piston 500 pushes anti-icing fluid successively to pass through lower annular space 632, first through hole 624 and the second annular space 640, into pressure
Table, the Fluid pressure in pipeline to be measured are shown on pressure gauge.
First inner chamber 210 includes inner tube 610 and upper annular space 631 in the present embodiment, and second inner chamber 220 includes lower annular space
632, first through hole 624 and the second annular space 640 accommodate the fluid in pipeline to be measured, second inner chamber 220 in first inner chamber 210
Middle receiving anti-icing fluid, and first inner chamber 210 is among the encirclement of the second accommodating chamber 220 so that anti-icing fluid be wrapped in it is to be measured
Fluid in pipeline effectively prevent pressure gauge to be shorted interior fluid ice blockage, avoids pressure gauge detection reading inaccurate.
Further, the inner surface of upper annular space 631 is provided with the first limited step 700；And/or lower annular space 632 is interior
Surface is provided with the second limited step 800, and the second limited step 800 is located at 624 top of first through hole.
Specifically, the first limited step 700 is located in upper annular space 631, and the appearance in the side wall of inner tube 610 can be set
The inner surface in outer tub side wall 621 also can be set in face.When towards injection anti-icing fluid in second inner chamber 220, the first limiting stand
Rank 700 prevents piston 500, and first inner chamber 210 is mobile downward under buoyancy.
Second limited step 800 is located in lower annular space 632, and the second limited step 800 is located at first through hole 624 and piston
Between 500, the second limited step 800 be can be set in the outer surface of the side wall of inner tube 610, also can be set in outer tub side wall
621 inner surface.It is excessive or be connected to second inner chamber 220 to antifreeze in pressure release passage 400 in pipeline fluid pressure to be measured
When liquid carries out pressure release, the lower section that piston 500 is moved to first through hole 624 is can be effectively prevented in the second limited step 800, avoids the
Fluid in one inner cavity 210 is mixed with the anti-icing fluid of second inner chamber 220.
With continued reference to Fig. 4, joint body 100 includes main casing 110 and the first connector for being connected to 110 both ends of main casing
120 and second connector 130, the first connector 120 is axial to offer the first centre bore 121, and the second connector 130 is axial to offer second
Centre bore 131；First centre bore 121 is connected to pipeline to be measured and inner tube 610, and the second centre bore 131 is connected to pressure gauge and the second ring
Sky 640；First connector 120 is connect with the bottom end 623 of outer barrel 620.
Specifically, joint body 100 includes main casing 110, the first connector 120 and the second connector 130, main casing 110
One end is connect with the first connector 120, and the other end is connect with the second connector 130.Main casing 110 connects with the first connector 120 and second
First 130 can be threaded connection, be also possible to flanged joint etc., this is not restricted.Preferably, as described in Figure 4, the first connector
120 one end is provided with internal screw thread, for being attached with pressure gauge；The other end of first connector 120 is provided with external screw thread, with
The internal screw thread connection of 110 one end of main casing setting；The other end of main casing 110 is provided with internal screw thread, with 130 one end of the second connector
The external screw thread of setting connects；The other end of second connector 130 is provided with external screw thread, is used for and piping connection to be measured.
First connector 120 is axial to offer the first centre bore 121, and the first centre bore 121 is connected to pipeline to be measured and inner tube
610.Wherein, external screw thread has can be set in one end of inner tube 610, and the first centre bore 121 is provided with internal screw thread and connect, so that the
One centre bore 121 is connected to the central passage 611 of inner tube 610；Alternatively, inner tube 610 can also be integrally formed with outer barrel 620, with
The connection of first connector 120.In pressure gauge detection process, the fluid in pipeline to be measured enters center by the first centre bore 121
Channel 611 acts on piston 500 by upper annular space 631.
Second connector 130 is axial to offer the second centre bore 131, and the second centre bore 131 is connected to pressure gauge and the second annular space
640, piston 500 successively pushes lower annular space 632, first through hole 624, the second annular space 640, the anti-icing fluid in the second centre bore 131,
So that pressure gauge is detected.
First connector 120 is connect with the bottom end 623 of outer barrel 620, and outer barrel 620 can be the metal drums such as steel, iron, can be with
One connector 120 is spirally connected, is clamped, and outer barrel 620 can also be to be integrally formed with the first connector 120.It is shorted to completely cut off pressure gauge
Interior fluid thermal loss avoids the fluid in first inner chamber 210 from cooling down the anti-icing fluid of second inner chamber 220, and outer barrel 620 is also
It can be with incubation and thermal insulation function ceramics bucket, insulating plastic pipe bucket etc..
As a preferred embodiment, outer barrel 620 is ceramic bucket, and while insulation, corrosion resistance is strong, especially
Suitable for the fluid measurement in oil/gas well.
Further, in order to realize being stably connected with for ceramic bucket and the first connector 120, the top setting of the first connector 120
There is annular groove, the bottom end 623 of outer barrel 620 is plugged in annular groove；The top surface of outer barrel 620 is provided with connection ring 625, connection
It is arranged with the second elastic component 900 outside ring 625, one end of the second elastic component 900 is abutted with the top surface of outer barrel 620, second bullet
The other end of property part 900 is abutted with the second connector 130；Connection ring 625 offers the second through-hole 626, for being connected to the second annular space
640 and second centre bore 131.
Specifically, the top of the first connector 120 is provided with annular groove, and the bottom end 623 of outer barrel 620 is plugged in annular groove
It is interior.The upper surface of outer barrel roof 622 is provided with connection ring 625, and the overall diameter of connection ring 625 is less than the outer straight of outer barrel bottom wall 622
Diameter.Second elastic component 900 is set in connection ring 625, and the second elastic component 900 can be spring, rubber parts etc., is not limited herein
System.One end of second elastic component 900 is abutted with the upper surface of outer barrel roof 622, the other end and second of the second elastic component 9000
The lower surface of connector 130 abuts, and outer barrel 620 is fixed on the first connector 120 and the by the elastic pressures of logical more second elastic components 900
Between two connectors 130.
In order to realize the connection of the second centre bore 626 and the second annular space 640, it is logical that the side wall of connection ring 625 offers second
Hole (not shown)；Alternatively, in embodiment of second elastic component 900 using spring, under connection ring 625 and the second connector 130
Surface has gap, and the liquid in the second annular space 640 is allowed to enter the second center by the gap and the gap of spring
In hole 626.
In some embodiments, the assembling being shorted in order to facilitate pressure gauge, main casing 110 connect with the second connector 130
The one end connect is provided with contacting wall 111, and one end of the second elastic component 900 is abutted with the upper surface of outer barrel roof 622, the second elasticity
The other end of part 900 is abutted with the lower surface of contacting wall 111, when assembling the first connector 120 and main casing 110, assembles outer barrel
620 and second elastic component 900, it avoids the cooperate complexity of assembling outer barrels 620 and the second elastic component 900 of three components and matches
It closes, so that assembly is more simple to operation.
In order to facilitate in anti-icing fluid injection second inner chamber, the note being connected to second inner chamber 220 is provided on the second connector 130
Enter channel 132.Specifically, injection channel 132 can be connected to the second centre bore 131, alternatively, injection channel 132 can be with
The connection of two annular spaces 640, this is not restricted.Inlet in injection channel 132 is additionally provided with seal head 133, prevents anti-icing fluid
It overflows.
In the above description, reference term " one embodiment ", " some embodiments ", " example ", " specific example " or
The description of " some examples " etc. means that particular features, structures, materials, or characteristics described in conjunction with this embodiment or example include
In at least one embodiment of the present invention or example.In the present specification, schematic expression of the above terms necessarily needle
Pair be identical embodiment or example.Moreover, particular features, structures, materials, or characteristics described can any one or
It can be combined in any suitable manner in multiple embodiment or examples.In addition, without conflicting with each other, those skilled in the art
The feature of different embodiments or examples described in this specification and different embodiments or examples can be combined and group
It closes.
Finally, it should be noted that the above embodiments are only used to illustrate the technical solution of the present invention., rather than its limitations；To the greatest extent
Pipe present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that: its according to
So be possible to modify the technical solutions described in the foregoing embodiments, or to some or all of the technical features into
Row equivalent replacement；And these are modified or replaceed, various embodiments of the present invention technology that it does not separate the essence of the corresponding technical solution
The range of scheme.
Claims (10)
1. a kind of pressure gauge is shorted characterized by comprising joint body and pressure release component；
The joint body axially offers flow channels and the pressure release for being connected to the flow channels with ambient atmosphere
Channel；
The pressure release component includes: closeouts, the first elastic component and regulating part；One end of first elastic component and the closure
Part connection, the other end of first elastic component are connect with the regulating part, and the regulating part is for adjusting first bullet
Property part be applied to the elastic compression power of the closeouts, the elastic compression power is used to the closeouts being pressed on the pressure release
The pressure release entrance in channel.
2. pressure gauge according to claim 1 is shorted, which is characterized in that the regulating part is provided with external screw thread, described to let out
The inner wall of pressure passageway is provided with the internal screw thread matched with the external screw thread.
3. pressure gauge according to claim 1 is shorted, which is characterized in that the regulating part is slidably installed in the pressure release passage
In the sliding slot that inner wall is opened up.
4. pressure gauge according to claim 1-3 is shorted, which is characterized in that be provided with work in the flow channels
Plug, and the piston can be moved axially along the flow channels；
The flow channels are separated into the first inner chamber of pipeline connection to be measured and are connected to the pressure gauge by the piston
Second inner chamber；For filling anti-icing fluid in the second inner chamber；The pressure release import and the first inner chamber of the pressure release passage
Or the second inner chamber connection.
5. pressure gauge according to claim 4 is shorted, which is characterized in that the pressure gauge short circuit further includes being arranged described
Pipe tub assembly in flow channels；
The pipe tub assembly includes inner tube and the outer barrel that is set in outside said inner tube；It is formed between said inner tube and said tub
First annular space, forms the second annular space between said tub and the side wall of the flow channels, the side wall of said tub bottom end opens up
There is first through hole；
The piston is located in first annular space, and first annular space is separated into upper annular space and lower annular space；
The upper end of said inner tube is connected to the upper annular space, the lower end of said inner tube and the pipeline connection to be measured；
The first through hole is connected to the lower annular space and second annular space, and second annular space is connected to the pressure gauge；
Wherein, the first inner chamber includes said inner tube and the upper annular space, and the second inner chamber includes the lower annular space, described
First through hole and second annular space.
6. pressure gauge according to claim 5 is shorted, which is characterized in that the inner surface of the upper annular space is provided with the first limit
Position step；
And/or the inner surface of the lower annular space is provided with the second limited step, and second limited step is located at described first
Above through-hole.
7. pressure gauge according to claim 5 is shorted, which is characterized in that the joint body includes main casing and connection
The first connector and the second connector at the main casing both ends, first connector axially offer the first centre bore, and described
Two connectors axially offer the second centre bore；
First centre bore is connected to the pipeline to be measured and said inner tube, and second centre bore is connected to the pressure gauge and institute
State the second annular space；
The connection of the bottom end of first connector and said tub.
8. pressure gauge according to claim 7 is shorted, which is characterized in that said tub is ceramic bucket.
9. pressure gauge according to claim 8 is shorted, which is characterized in that it is recessed to be provided with annular at the top of first connector
Slot, the bottom end of said tub are plugged in the annular groove；
The top surface of said tub is provided with connection ring, is arranged with the second elastic component outside the connection ring, second elastic component
One end is abutted with the top surface of said tub, and the other end of second elastic component is abutted with second connector；
The connection ring offers the second through-hole, for being connected to second annular space and second centre bore.
10. pressure gauge according to claim 8 is shorted, which is characterized in that be provided on second connector and described the
The injection channel of two inner cavities connection, for injecting the anti-icing fluid.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015677.0A CN110017939A (en) | 2018-01-08 | 2018-01-08 | Pressure gauge is shorted |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810015677.0A CN110017939A (en) | 2018-01-08 | 2018-01-08 | Pressure gauge is shorted |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN110017939A true CN110017939A (en) | 2019-07-16 |
Family
ID=67187513
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810015677.0A Pending CN110017939A (en) | 2018-01-08 | 2018-01-08 | Pressure gauge is shorted |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN110017939A (en) |
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|---|---|---|---|---|
| EP3825672A1 (en) * | 2019-11-20 | 2021-05-26 | Honeywell International Inc. | Methods and apparatuses for providing freeze resistant sensing assembly |
| CN113739070A (en) * | 2021-09-17 | 2021-12-03 | 枣庄学院 | Pressure limiting and adjusting device |
| CN114046933A (en) * | 2022-01-12 | 2022-02-15 | 江苏华质检测技术有限公司 | Pressure calibrator for thermal chamber |
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| EP3825672A1 (en) * | 2019-11-20 | 2021-05-26 | Honeywell International Inc. | Methods and apparatuses for providing freeze resistant sensing assembly |
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