CN105424269A - Pipeline pressure gauge - Google Patents
Pipeline pressure gauge Download PDFInfo
- Publication number
- CN105424269A CN105424269A CN201511033321.2A CN201511033321A CN105424269A CN 105424269 A CN105424269 A CN 105424269A CN 201511033321 A CN201511033321 A CN 201511033321A CN 105424269 A CN105424269 A CN 105424269A
- Authority
- CN
- China
- Prior art keywords
- spool
- binding post
- valve
- valve core
- hole
- 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.)
- Pending
Links
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
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0663—Flame protection; Flame barriers
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/12—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side weight-loaded
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/02—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side
- F16K17/164—Safety valves; Equalising valves, e.g. pressure relief valves opening on surplus pressure on one side; closing on insufficient pressure on one side and remaining closed after return of the normal pressure
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- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K17/00—Safety valves; Equalising valves, e.g. pressure relief valves
- F16K17/36—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position
- F16K17/366—Safety valves; Equalising valves, e.g. pressure relief valves actuated in consequence of extraneous circumstances, e.g. shock, change of position the closure member being a movable ball
Abstract
The invention provides a pipeline pressure gauge which comprises a gauge body and a valve body. The gauge body comprises a gauge housing. The back surface of the gauge housing is provided with a back cover. A terminal mounting chamber is formed between the back cover and the gauge housing. The valve body comprises a valve body and a valve core. The left side and the right side of the valve body are respectively provided with a valve core inlet and a valve core outlet. The diameter of the valve core inlet is slightly smaller than that of the valve core. The diameter of the valve core inlet is larger than that of the valve core outlet. The valve core is provided with a pressure balancing hole. A first gauge air specialized explosion-proof valve in front of an explosion or breaking point is automatically closed, thereby effectively preventing accident expansion. Because the valve core is provided with the pressure balancing hole, automatic closing can be realized when a fault occurs without man intervention, and automatic resetting after fault recovery is realized. Finding and closing of the first valve in front of the explosion or breaking point in the pipeline are not required. The valve body of the pipeline pressure gauge can be instantly closed, thereby preventing large amount of leaked medium and loss increase, and furthermore preventing interlocked stoppage of a system caused by system pressure reduction.
Description
Technical field
The invention belongs to instrument field, especially relates to a kind of pipeline pressure table.
Background technology
Usually run in the industrial production because other outer hydraulic pipings burst suddenly, disconnect, cause instrument wind line fracture to cause a large amount of instrument wind to outflow, instrument wind system pressure reduces interlocking action, causes system shutdown, causes very large economic loss to enterprise.At present also there is no special protective device to prevent because pipeline bursts suddenly, to disconnect and the instrument wind medium that causes leaks the generation of situation in a large number.
Summary of the invention
In view of this, the invention is intended to propose a kind of pipeline pressure table, to prevent from bursting suddenly, disconnecting the generation of the situation and the instrument wind medium caused leaks in a large number because of pipeline.
For achieving the above object, the technical scheme of the invention is achieved in that
A kind of pipeline pressure table, comprise table body and explosion-proof valve, described table body comprises watchcase, the watchcase back side is provided with bonnet, binding post installation cavity is formed between bonnet and watchcase, some binding posts be positioned at this installation cavity and with the mounting hole clearance fit on watchcase, binding post fixed head is provided with between binding post and watchcase, this binding post fixed head has the spacing hole passed through for binding post, the hole of this spacing hole is along extending out formation pilot hole, binding post forms interference duct between its post jamb and hole wall of pilot hole after inserting spacing hole, register pin and this interference duct interference fit also clamp binding post, described valve body comprises valve body and spool, is spool import and outlet about described valve body respectively, and described spool inlet diameter is slightly less than valve core diameter, and described spool inlet diameter is greater than spool outlet diameter, described spool there is equalized pressure hole.
Further, described binding post comprises cylinder and insulation inserts, cylinder comprises the right-hand thread portion of left-hand thread portion, middle smooth department, right-hand member, this insulation inserts is interference fitted on the smooth department of cylinder, the left-hand thread portion of binding post is combined with wiring nut, left set nut from left to right successively, and the right-hand thread portion of binding post is combined with right set nut.
Further, described valve core diameter is slightly larger than spool inlet diameter, and spool inlet diameter is greater than spool outlet diameter, and assembled heats valve body, and carry out sub zero treatment to the spool of special anti-explosion valve, spool is provided with equalized pressure hole.
Relative to prior art, the pipeline pressure table described in the invention has following advantage:
Automatic closedown explosion, front first the instrument wind special anti-explosion valve valve of breakaway poing, effective Accident prevention expands.Because spool is provided with equalized pressure hole, automatically cut off when not needing human intervention can complete fault, automatically reset after fault recovery.Do not need to find and occur that pipeline bursts suddenly, front first valve of cut-off point is closed, this valve can be closed instantaneously, avoids causing a large amount of medium to leak, enlargement loss; Prevent because system pressure reduces, cause system interlock to stop.
Accompanying drawing explanation
The accompanying drawing of the part of formation the invention is used to provide the further understanding to the invention, and the schematic description and description of the invention, for explaining the invention, does not form the improper restriction to the invention.In the accompanying drawings:
Fig. 1 is the structural representation described in the invention embodiment.
Description of reference numerals:
1-valve body; 2-spool; 3-equalized pressure hole; 4-glass surface; 5-binding post; 6-wiring nut; 7-spacing hole; 8-pilot hole; 9-register pin.
Embodiment
It should be noted that, when not conflicting, the embodiment in the invention and the feature in embodiment can combine mutually.
In the description of the invention, it will be appreciated that, term " " center ", " longitudinal direction ", " transverse direction ", " on ", D score, " front ", " afterwards ", " left side ", " right side ", " vertically ", " level ", " top ", " end ", " interior ", orientation or the position relationship of the instruction such as " outward " are based on orientation shown in the drawings or position relationship, only the invention for convenience of description and simplified characterization, instead of indicate or imply that the device of indication or element must have specific orientation, with specific azimuth configuration and operation, therefore the restriction to the invention can not be interpreted as.In addition, term " first ", " second " etc. only for describing object, and can not be interpreted as instruction or hint relative importance or imply the quantity indicating indicated technical characteristic.Thus, one or more these features can be expressed or impliedly be comprised to the feature being limited with " first ", " second " etc.In the description of the invention, except as otherwise noted, the implication of " multiple " is two or more.
In the description of the invention, it should be noted that, unless otherwise clearly defined and limited, term " installation ", " being connected ", " connection " should be interpreted broadly, and such as, can be fixedly connected with, also can be removably connect, or connect integratedly; Can be mechanical connection, also can be electrical connection; Can be directly be connected, also indirectly can be connected by intermediary, can be the connection of two element internals.For the ordinary skill in the art, the concrete meaning of above-mentioned term in the invention can be understood by concrete condition.
Below with reference to the accompanying drawings and describe the invention in detail in conjunction with the embodiments.
A kind of pipeline pressure table, comprise table body and explosion-proof valve, described table body comprises watchcase, the watchcase back side is provided with bonnet, binding post installation cavity is formed between bonnet and watchcase, some binding posts 5 be positioned at this installation cavity and with the mounting hole clearance fit on watchcase, binding post fixed head is provided with between binding post 5 and watchcase, this binding post fixed head has the spacing hole 7 passed through for binding post, the hole of this spacing hole 7 forms pilot hole 8 along extending out, interference duct is formed between its post jamb and hole wall of pilot hole after binding post 5 inserts spacing hole, register pin 9 is with this interference duct interference fit and clamp binding post 5, described explosion-proof valve comprises valve body 1 and spool 2, and described valve body about 1 is spool import and outlet respectively, and described spool inlet diameter is slightly less than valve core diameter, and described spool inlet diameter is greater than spool outlet diameter, described spool there is equalized pressure hole 3.
Binding post comprises cylinder and insulation inserts, cylinder comprises the right-hand thread portion of left-hand thread portion, middle smooth department, right-hand member, this insulation inserts is interference fitted on the smooth department of cylinder, the left-hand thread portion of binding post is combined with wiring nut 6, left set nut from left to right successively, and the right-hand thread portion of binding post is combined with right set nut.
Spool 2 diameter is slightly larger than spool inlet diameter, and spool inlet diameter is greater than spool outlet diameter, and assembled heats valve body, and carry out sub zero treatment to the spool of special anti-explosion valve, spool is provided with equalized pressure hole 3.
During normal operation, pressure reduction between spool intake pressure P1 and spool top hole pressure P2 is not enough to promote spool 2 and moves to closed condition, medium will pass through valve chamber, spool 2 flows out, the rate-of flow now flowed out is F1, when pipeline after special valve once rupture, explosion, spool top hole pressure P2 is in atmospheric pressure state, now spool top hole pressure is normal pressure P3, P1 is the same with manifold pressure for spool intake pressure, pressure reduction between such spool intake pressure P1 and spool top hole pressure P2 increases suddenly, pressure reduction moves to closed condition by promoting spool 2 instantaneously, close special valve, the medium of trace can be flow through in the equalized pressure hole 3 only left on spool 2, flow F3 is revealed when the rate-of flow now flowed out is fault, when rupturing, after point of burst is repaired, pressure equilibrium is carried out by the equalized pressure hole 3 on spool 2, spool intake pressure P1 and spool top hole pressure P2 pressure reduction reduce gradually, after spool intake pressure P1 and spool top hole pressure P2 balances, spool 2 returns to normal condition under gravity.
The foregoing is only the preferred embodiment of the invention; not in order to limit the invention; within all spirit in the invention and principle, any amendment done, equivalent replacement, improvement etc., within the protection domain that all should be included in the invention.
Claims (3)
1. a pipeline pressure table, it is characterized in that: comprise table body and valve body, described table body comprises watchcase, the watchcase back side is provided with bonnet, binding post installation cavity is formed between bonnet and watchcase, some binding posts be positioned at this installation cavity and with the mounting hole clearance fit on watchcase, binding post fixed head is provided with between binding post and watchcase, this binding post fixed head has the spacing hole passed through for binding post, the hole of this spacing hole is along extending out formation pilot hole, binding post forms interference duct between its post jamb and hole wall of pilot hole after inserting spacing hole, register pin and this interference duct interference fit also clamp binding post, described valve body comprises valve body and spool, is spool import and outlet about described valve body respectively, and described spool inlet diameter is slightly less than valve core diameter, and described spool inlet diameter is greater than spool outlet diameter, described spool there is equalized pressure hole.
2. pipeline pressure table according to claim 1, it is characterized in that: described binding post comprises cylinder and insulation inserts, cylinder comprises the right-hand thread portion of left-hand thread portion, middle smooth department, right-hand member, this insulation inserts is interference fitted on the smooth department of cylinder, the left-hand thread portion of binding post is combined with wiring nut, left set nut from left to right successively, and the right-hand thread portion of binding post is combined with right set nut.
3. pipeline pressure table according to claim 1, it is characterized in that: described valve core diameter is slightly larger than spool inlet diameter, and spool inlet diameter is greater than spool outlet diameter, and assembled heats valve body, carry out sub zero treatment to the spool of special anti-explosion valve, spool is provided with equalized pressure hole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033321.2A CN105424269A (en) | 2015-12-31 | 2015-12-31 | Pipeline pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201511033321.2A CN105424269A (en) | 2015-12-31 | 2015-12-31 | Pipeline pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN105424269A true CN105424269A (en) | 2016-03-23 |
Family
ID=55502625
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201511033321.2A Pending CN105424269A (en) | 2015-12-31 | 2015-12-31 | Pipeline pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN105424269A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967138A (en) * | 2018-09-28 | 2020-04-07 | 罗斯蒙特公司 | Non-invasive process fluid pressure measurement system |
| CN114233902A (en) * | 2021-11-09 | 2022-03-25 | 中国长江电力股份有限公司 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442167A (en) * | 2003-04-12 | 2003-09-17 | 程祥荣 | Making method of capsule for treating hemorrhoid |
| JP2005221350A (en) * | 2004-02-05 | 2005-08-18 | Yokogawa Electric Corp | Process connector for differential pressure measuring device |
| CN101324285A (en) * | 2008-07-30 | 2008-12-17 | 韩亚杰 | Limit flow hydraulic valve |
| CN202562669U (en) * | 2012-05-18 | 2012-11-28 | 玉环县玉立水暖器材厂 | An ultrasonic heat quantity household meter |
| CN204558657U (en) * | 2015-05-04 | 2015-08-12 | 无锡市康博瑞特电子科技有限公司 | A kind of anti-rotation binding post |
| CN105043659A (en) * | 2015-08-15 | 2015-11-11 | 重庆布莱迪仪器仪表有限公司 | Explosion proof pressure gauge |
-
2015
- 2015-12-31 CN CN201511033321.2A patent/CN105424269A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442167A (en) * | 2003-04-12 | 2003-09-17 | 程祥荣 | Making method of capsule for treating hemorrhoid |
| JP2005221350A (en) * | 2004-02-05 | 2005-08-18 | Yokogawa Electric Corp | Process connector for differential pressure measuring device |
| CN101324285A (en) * | 2008-07-30 | 2008-12-17 | 韩亚杰 | Limit flow hydraulic valve |
| CN202562669U (en) * | 2012-05-18 | 2012-11-28 | 玉环县玉立水暖器材厂 | An ultrasonic heat quantity household meter |
| CN204558657U (en) * | 2015-05-04 | 2015-08-12 | 无锡市康博瑞特电子科技有限公司 | A kind of anti-rotation binding post |
| CN105043659A (en) * | 2015-08-15 | 2015-11-11 | 重庆布莱迪仪器仪表有限公司 | Explosion proof pressure gauge |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110967138A (en) * | 2018-09-28 | 2020-04-07 | 罗斯蒙特公司 | Non-invasive process fluid pressure measurement system |
| CN114233902A (en) * | 2021-11-09 | 2022-03-25 | 中国长江电力股份有限公司 | Gauge front pipe fitting capable of being automatically closed in case of pressure loss |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| RJ01 | Rejection of invention patent application after publication | ||
| RJ01 | Rejection of invention patent application after publication |
Application publication date: 20160323 |