CN107202666A - A kind of pressure transmitter device that can prevent from blocking - Google Patents
A kind of pressure transmitter device that can prevent from blocking Download PDFInfo
- Publication number
- CN107202666A CN107202666A CN201710539999.0A CN201710539999A CN107202666A CN 107202666 A CN107202666 A CN 107202666A CN 201710539999 A CN201710539999 A CN 201710539999A CN 107202666 A CN107202666 A CN 107202666A
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- CN
- China
- Prior art keywords
- patchhole
- screen pack
- static line
- fixed block
- pressure transmitter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- 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
- G01L19/0627—Protection against aggressive medium in general
- G01L19/0645—Protection against aggressive medium in general using isolation membranes, specially adapted for protection
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of pressure transmitter device that can prevent from blocking, including：Action bars, the first screen pack, the second screen pack, the 3rd screen pack, pressure transmitter；The left side tube wall of measurement conduit offers patchhole one, patchhole two, patchhole three；The right side tube wall of measurement conduit offers patchhole four, patchhole five, patchhole six, patchhole one to the upper end of patchhole six is equipped with closure, fixed block is equipped with patchhole one to patchhole six, first to the 3rd screen pack two ends are connected with 6 static line one end respectively, 6 static line other ends are connected through after measuring pipe inner wall with the fixed block in patchhole one to patchhole six, action bars lower end is connected with blade, action bars is used to cut off static line in the patchhole one of insertion apparatus, realize prevents dregs from entering test conduit by screen pack, and then prevent from forming deposition in test conduit, coordinate the technique effect increased the service life using multiple screen packs.
Description
Technical field
The present invention relates to pressure transmitter research field, in particular it relates to a kind of pressure transmitter that can prevent from blocking
Device.
Background technology
Pressure transmitter is a kind of to convert pressure into pneumatic signal or electromotive signal is controlled equipment with teletransmission.
The physical pressure parameters such as gas, the liquid that it can experience load cell are transformed into the electric signal of standard
(such as 4~20mADC), is measured with supplying the secondary meters such as indicator alarm, recorder, adjuster, indicated and process tune
Section.
Pressure transmitter is the most commonly used a kind of sensor in industrial practice, and it is widely used in various industrial automatic control rings
Border, be related to water conservancy and hydropower, railway traffic, intelligent building, production automatic control, Aero-Space, military project, petrochemical industry, oil well, electric power, ship,
Numerous industries such as lathe, pipeline.
Pressure transmitter has electrodynamic type and the major class of pneumatic type two.DYN dynamic unified output signal be 0~10mA, 4~
The DC signals such as 20mA or 1~5V.The unified output signal of pneumatic type is 20~100Pa gas pressure.
Pressure transmitter by different transfer principles can be divided into power (torque) balanced type, condenser type, inductance type, strain-type and
Frequency type etc., following is a brief introduction of the principle of several pressure (differential pressure) transmitter, structure, using knowledge such as, maintenance and verifications.
Pressure signal is passed to electronic equipment by the main function of pressure transmitter, and then in its principle of Computer display pressure
Generally：The mechanical signal of this pressure of hydraulic pressure is transformed into electronic signal pressure and voltage or electricity as electric current (4-20mA)
Flow size linear, usually proportional relation.So, transmitter output voltage or electric current with pressure increase and increase by
This show that two kinds of pressure of the measured medium of the relational expression pressure transmitter of a pressure and voltage or electric current are passed through high and low two pressure
Power room, low pressure chamber pressure uses atmospheric pressure or vacuum, on the both sides isolation diaphragm for acting on δ first (i.e. sensing element), by every
Measuring diaphragm both sides are sent to from the filling liquid in piece and element.
Electrode of the pressure transmitter on measuring diaphragm and both sides insulating trip respectively constitutes a capacitor.Work as pressure at both sides
When inconsistent, measuring diaphragm is caused to produce displacement, its displacement and pressure differential are directly proportional, therefore both sides capacitance is just, passes through
Vibration and demodulation link.
Pressure transmitter experiences the electric elements generally resistance strain gage of pressure, and resistance strain gage is a kind of by measured piece
On pressure conversion turn into a kind of Sensitive Apparatus of electric signal.It is at most metal resistance strain gauge and half that resistance strain gage, which is applied,
Two kinds of conductor foil gauge.Metal resistance strain gauge has two kinds of thread foil gauge and metal foil-like foil gauge again.Typically will strain
Piece is closely bonded in generation mechanics by special binder and strained on matrix, when stress variation occurs for matrix stress, electricity
Resistance foil gauge also produces deformation together, the resistance of foil gauge is changed, is changed so that being added in ohmically voltage.
Pressure transmitter is operationally to be connected through a screw thread to be fixed on test pipeline, by test conduit insertion testing tube
Tested, but tested long afterwards in road, the dregs in test pipeline are easily deposited in test conduit, cause to block, and then
Cause test inaccurate.
In summary, present inventor has found above-mentioned technology extremely during the present application technical scheme is realized
There is following technical problem less：
In the prior art, the dregs that existing pressure transmitter is present in test pipeline easily sink in test conduit
Product, causes to block, and then causes to test inaccurate technical problem.
The content of the invention
The invention provides a kind of pressure transmitter device that can prevent from blocking, solve existing pressure transmitter and deposit
Dregs in test pipeline are easily deposited in test conduit, cause to block, and then cause to test inaccurate technical problem,
Realize prevents dregs from entering test conduit by screen pack, and then prevents from forming deposition in test conduit, and disassembles
Through forming the screen pack of deposition, the technique effect increased the service life is coordinated using multiple screen packs.
In order to solve the above technical problems, this application provides a kind of pressure transmitter device that can prevent from blocking, it is described
Device includes：
Action bars, the first screen pack, the second screen pack, the 3rd screen pack, pressure transmitter；First screen pack, the second mistake
Filter screen, the 3rd screen pack are from top to bottom installed in the porch of the measurement conduit of pressure transmitter, the first screen pack, the second filtering
Net, the 3rd screen pack are made of elastomeric material, are measured the left side tube wall of conduit and are offered patchhole one in vertical direction, insert
Enter hole two, patchhole three；The right side tube wall of measurement conduit offers patchhole four, patchhole five, patchhole six in vertical direction,
Patchhole one is from left to right arranged in order in the horizontal direction to patchhole six, and patchhole one is with patchhole six on measurement conduit
Center line is symmetrical, and patchhole two is symmetrical on the center line for measuring conduit with patchhole five, patchhole three and patchhole four on
The center line for measuring conduit is symmetrical, and patchhole one to the upper end of patchhole six is equipped with closure, wherein, patchhole one to patchhole
Fixed block is equipped with six, the first to the 3rd screen pack two ends are connected with 6 static line one end respectively, 6 static line other ends
It is connected after through measurement pipe inner wall with the fixed block in patchhole one to patchhole six, action bars lower end is connected with blade, behaviour
Making bar is used to cut off static line in the patchhole one of insertion apparatus.
Wherein, the principle of the application is, by being provided with screen pack at the measurement duct entry of pressure transmitter, to pass through
Screen pack prevents dregs from entering test conduit, and then prevents from forming deposition in test conduit, but after being used for a long time, screen pack meeting
Deposition is formed, causes filter mesh to block, and then influences the detection accuracy of pressure transmitter, the technical scheme of this programme can be with
The screen pack for having formed deposition is removed, proceeds filtering using subsequent filter, is made by the cooperation of 3 screen packs
With consistent with the usually used life-span of pressure transmitter, it is to avoid dismounting lower pressure transmitter change the trouble of screen pack,
Because the 3rd screen pack is located at the porch of bottom, so the 3rd screen pack forms deposition at first, when the 3rd screen pack is formed
After deposition, corresponding first patchhole in the 3rd screen pack two ends and the 6th patchhole are opened respectively, action bars is inserted, knife is utilized
Piece cuts off static line, and now the 3rd screen pack loses tractive force because the effect of gravity comes off, then the second filtering of upper end
Net enters filtration state, the like, until the first screen pack filtered, by the cooperation of 3 screen packs and superseded,
The integral filter time is extended, is matched with the service life of pressure transmitter.
Further, first static line one end on the left of the first screen pack with being connected, and the first static line other end passes through measurement
Pipe inner wall is connected with the fixed block in patchhole three, and second static line one end on the right side of the first screen pack with being connected, and second fixes
The rope other end is connected through measurement pipe inner wall with the fixed block in patchhole four；3rd static line one end is left with the second screen pack
Side is connected, and the 3rd static line other end is connected through measurement pipe inner wall with the fixed block in patchhole two, the 4th static line one
End on the right side of the second screen pack with being connected, and the 4th static line other end connects through measurement pipe inner wall with the fixed block in patchhole five
Connect；5th static line one end on the left of the 3rd screen pack with being connected, and the 5th static line other end is through measurement pipe inner wall with inserting
Fixed block connection in hole three, the 6th static line one end on the right side of the 3rd screen pack with being connected, and the 6th static line other end, which is passed through, to be surveyed
Amount pipe inner wall is connected with the fixed block in patchhole six.
Further, static line is made of elastic caoutchouc.It is easy to stretch and shrinks using elastic caoutchouc.
Further, the blade is provided with protective case.It is easy to be protected when not in use provided with protective case.
Further, the fixed block is detachably connected by magnetic coupling with patchhole bottom, at the top of fixed block with
Annulus is connected, and action bars upper end is connected with hook.When needing to change fixed block or safeguarded, by the hook end of action bars
Annulus pull-out fixed block is caught in inserting in the hole for insertion apparatus.
One or more technical schemes that the application is provided, have at least the following technical effects or advantages：
Solve existing pressure transmitter easily to deposit in test conduit in the presence of the dregs in test pipeline, cause to block up
Plug, and then cause to test inaccurate technical problem, realize prevents dregs from entering test conduit by screen pack, and then prevents
Test and deposition is formed in conduit, and disassemble the screen pack for having formed deposition, coordinate extension to use using multiple screen packs
The technique effect in life-span.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the embodiment of the present invention, constitutes one of the application
Point, do not constitute the restriction to the embodiment of the present invention；
Fig. 1 is the structural representation of pressure transmitter device in the application；
Fig. 2 is the structural representation of measurement conduit in the application；
Fig. 3 is the structural representation of action bars in the application.
Embodiment
The invention provides a kind of pressure transmitter device that can prevent from blocking, solve existing pressure transmitter and deposit
Dregs in test pipeline are easily deposited in test conduit, cause to block, and then cause to test inaccurate technical problem,
Realize prevents dregs from entering test conduit by screen pack, and then prevents from forming deposition in test conduit, and disassembles
Through forming the screen pack of deposition, the technique effect increased the service life is coordinated using multiple screen packs.
It is below in conjunction with the accompanying drawings and specific real in order to be more clearly understood that the above objects, features and advantages of the present invention
Mode is applied the present invention is further described in detail.It should be noted that in the case where not conflicting mutually, the application's
Feature in embodiment and embodiment can be mutually combined.
Many details are elaborated in the following description to facilitate a thorough understanding of the present invention, still, the present invention may be used also
Implemented with the other modes in the range of being different from being described herein using other, therefore, protection scope of the present invention is not by under
The limitation of specific embodiment disclosed in face.
Fig. 1-Fig. 3 is refer to, this application provides a kind of pressure transmitter device that can prevent from blocking, described device bag
Include：
Action bars, the first screen pack 3, the second screen pack 4, the 3rd screen pack 5, pressure transmitter 1；First screen pack,
Two screen packs, the 3rd screen pack are from top to bottom installed in the porch of the measurement conduit 2 of pressure transmitter, the first screen pack, the
Two screen packs, the 3rd screen pack are made of elastomeric material, and the left side tube wall of measurement conduit offers insertion in vertical direction
Hole 1, patchhole 27, patchhole 38；The right side tube wall of measurement conduit offers patchhole 49, patchhole in vertical direction
5 10, patchhole 6 11, patchhole one to patchhole six is from left to right arranged in order in the horizontal direction, patchhole one and patchhole
Six is symmetrical on measuring the center line of conduit, and patchhole two and patchhole five are symmetrical on the center line for measuring conduit, patchhole
Three is symmetrical on the center line for measuring conduit with patchhole four, and patchhole one to the upper end of patchhole six is equipped with closure, wherein,
Be equipped with fixed block 12 in patchhole one to patchhole six, the first to the 3rd screen pack two ends respectively with 6 one end of static line 13
Connection, 6 static line other ends are connected through after measuring pipe inner wall with the fixed block in patchhole one to patchhole six, are operated
The lower end of bar 14 is connected with blade 15, and action bars is used to cut off static line in the patchhole one of insertion apparatus.
Wherein, the principle of the application is, by being provided with screen pack at the measurement duct entry of pressure transmitter, to pass through
Screen pack prevents dregs from entering test conduit, and then prevents from forming deposition in test conduit, but after being used for a long time, screen pack meeting
Deposition is formed, causes filter mesh to block, and then influences the detection accuracy of pressure transmitter, the technical scheme of this programme can be with
The screen pack for having formed deposition is removed, proceeds filtering using subsequent filter, is made by the cooperation of 3 screen packs
With consistent with the usually used life-span of pressure transmitter, it is to avoid dismounting lower pressure transmitter change the trouble of screen pack,
Because the 3rd screen pack is located at the porch of bottom, so the 3rd screen pack forms deposition at first, when the 3rd screen pack is formed
After deposition, corresponding first patchhole in the 3rd screen pack two ends and the 6th patchhole are opened respectively, action bars is inserted, knife is utilized
Piece cuts off static line, and now the 3rd screen pack loses tractive force because the effect of gravity comes off, then the second filtering of upper end
Net enters filtration state, the like, until the first screen pack filtered, by the cooperation of 3 screen packs and superseded,
The integral filter time is extended, is matched with the service life of pressure transmitter.
Further, first static line one end on the left of the first screen pack with being connected, and the first static line other end passes through measurement
Pipe inner wall is connected with the fixed block in patchhole three, and second static line one end on the right side of the first screen pack with being connected, and second fixes
The rope other end is connected through measurement pipe inner wall with the fixed block in patchhole four；3rd static line one end is left with the second screen pack
Side is connected, and the 3rd static line other end is connected through measurement pipe inner wall with the fixed block in patchhole two, the 4th static line one
End on the right side of the second screen pack with being connected, and the 4th static line other end connects through measurement pipe inner wall with the fixed block in patchhole five
Connect；5th static line one end on the left of the 3rd screen pack with being connected, and the 5th static line other end is through measurement pipe inner wall with inserting
Fixed block connection in hole three, the 6th static line one end on the right side of the 3rd screen pack with being connected, and the 6th static line other end, which is passed through, to be surveyed
Amount pipe inner wall is connected with the fixed block in patchhole six.
Further, static line is made of elastic caoutchouc.It is easy to stretch and shrinks using elastic caoutchouc.
Further, the blade is provided with protective case.It is easy to be protected when not in use provided with protective case.
Further, the fixed block is detachably connected by magnetic coupling with patchhole bottom, at the top of fixed block with
Annulus is connected, and action bars upper end is connected with hook.When needing to change fixed block or safeguarded, by the hook end of action bars
Annulus pull-out fixed block is caught in inserting in the hole for insertion apparatus.
One or more technical schemes that the application is provided, have at least the following technical effects or advantages：
Solve existing pressure transmitter easily to deposit in test conduit in the presence of the dregs in test pipeline, cause to block up
Plug, and then cause to test inaccurate technical problem, realize prevents dregs from entering test conduit by screen pack, and then prevents
Test and deposition is formed in conduit, and disassemble the screen pack for having formed deposition, coordinate extension to use using multiple screen packs
The technique effect in life-span.
, but those skilled in the art once know basic creation although preferred embodiments of the present invention have been described
Property concept, then can make other change and modification to these embodiments.So, appended claims are intended to be construed to include excellent
Select embodiment and fall into having altered and changing for the scope of the invention.
Obviously, those skilled in the art can carry out the essence of various changes and modification without departing from the present invention to the present invention
God and scope.So, if these modifications and variations of the present invention belong to the scope of the claims in the present invention and its equivalent technologies
Within, then the present invention is also intended to comprising including these changes and modification.
Claims (5)
1. a kind of pressure transmitter device that can prevent from blocking, it is characterised in that described device includes：
Action bars, the first screen pack, the second screen pack, the 3rd screen pack, pressure transmitter；First screen pack, the second screen pack,
3rd screen pack is from top to bottom installed in the porch of the measurement conduit of pressure transmitter, the first screen pack, the second screen pack, the
Three screen packs are made of elastomeric material, and the left side tube wall of measurement conduit offers patchhole one, patchhole in vertical direction
2nd, patchhole three；The right side tube wall of measurement conduit offers patchhole four, patchhole five, patchhole six in vertical direction, inserts
Kong Yizhi patchholes six are from left to right arranged in order in the horizontal direction, center of the patchhole one with patchhole six on measuring conduit
Line is symmetrical, and patchhole two is symmetrical on the center line for measuring conduit with patchhole five, and patchhole three is with patchhole four on measurement
The center line of conduit is symmetrical, and patchhole one to the upper end of patchhole six is equipped with closure, wherein, in patchhole one to patchhole six
Fixed block is equipped with, the first to the 3rd screen pack two ends are connected with 6 static line one end respectively, and 6 static line other ends are passed through
It is connected after measurement pipe inner wall with the fixed block in patchhole one to patchhole six, action bars lower end is connected with blade, action bars
For static line to be cut off in the patchhole one of insertion apparatus.
2. the pressure transmitter device according to claim 1 that can prevent from blocking, it is characterised in that the first static line one
End on the left of the first screen pack with being connected, and the first static line other end connects through measurement pipe inner wall with the fixed block in patchhole three
Connect, second static line one end on the right side of the first screen pack with being connected, and the second static line other end is through measurement pipe inner wall with inserting
Fixed block connection in Kong Si；3rd static line one end on the left of the second screen pack with being connected, and the 3rd static line other end, which is passed through, to be surveyed
Amount pipe inner wall is connected with the fixed block in patchhole two, and the 4th static line one end on the right side of the second screen pack with being connected, and the 4th consolidates
Surely the rope other end is connected through measurement pipe inner wall with the fixed block in patchhole five；5th static line one end and the 3rd screen pack
Left side is connected, and the 5th static line other end is connected through measurement pipe inner wall with the fixed block in patchhole three, the 6th static line
One end on the right side of the 3rd screen pack with being connected, and the 6th static line other end passes through measurement pipe inner wall and the fixed block in patchhole six
Connection.
3. the pressure transmitter device according to claim 1 that can prevent from blocking, it is characterised in that static line uses bullet
Property rubber is made.
4. the pressure transmitter device according to claim 1 that can prevent from blocking, it is characterised in that set on the blade
There is protective case.
5. the pressure transmitter device according to claim 1 that can prevent from blocking, it is characterised in that the fixed block leads to
Cross magnetic coupling to be detachably connected with patchhole bottom, be connected at the top of fixed block with annulus, action bars upper end is connected with hook.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539999.0A CN107202666A (en) | 2017-07-05 | 2017-07-05 | A kind of pressure transmitter device that can prevent from blocking |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201710539999.0A CN107202666A (en) | 2017-07-05 | 2017-07-05 | A kind of pressure transmitter device that can prevent from blocking |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN107202666A true CN107202666A (en) | 2017-09-26 |
Family
ID=59910747
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201710539999.0A Pending CN107202666A (en) | 2017-07-05 | 2017-07-05 | A kind of pressure transmitter device that can prevent from blocking |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN107202666A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987282A (en) * | 2019-11-29 | 2020-04-10 | 中国科学院微电子研究所 | Anti-deposition air homogenizing ring |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203365053U (en) * | 2013-07-23 | 2013-12-25 | 攀钢集团西昌钢钒有限公司 | Anti-clogging pressure testing device |
-
2017
- 2017-07-05 CN CN201710539999.0A patent/CN107202666A/en active Pending
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203365053U (en) * | 2013-07-23 | 2013-12-25 | 攀钢集团西昌钢钒有限公司 | Anti-clogging pressure testing device |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110987282A (en) * | 2019-11-29 | 2020-04-10 | 中国科学院微电子研究所 | Anti-deposition air homogenizing ring |
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Application publication date: 20170926 |