CN108644494A - A kind of temperature, pressure on-line testing and calibration multifunction conjunction - Google Patents
A kind of temperature, pressure on-line testing and calibration multifunction conjunction Download PDFInfo
- Publication number
- CN108644494A CN108644494A CN201810706024.7A CN201810706024A CN108644494A CN 108644494 A CN108644494 A CN 108644494A CN 201810706024 A CN201810706024 A CN 201810706024A CN 108644494 A CN108644494 A CN 108644494A
- Authority
- CN
- China
- Prior art keywords
- temperature sensor
- calibration
- pressure
- line testing
- adapter body
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- 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
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Classifications
-
- 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
- F16L—PIPES; JOINTS OR FITTINGS FOR PIPES; SUPPORTS FOR PIPES, CABLES OR PROTECTIVE TUBING; MEANS FOR THERMAL INSULATION IN GENERAL
- F16L15/00—Screw-threaded joints; Forms of screw-threads for such joints
- F16L15/08—Screw-threaded joints; Forms of screw-threads for such joints with supplementary elements
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F17—STORING OR DISTRIBUTING GASES OR LIQUIDS
- F17D—PIPE-LINE SYSTEMS; PIPE-LINES
- F17D5/00—Protection or supervision of installations
- F17D5/02—Preventing, monitoring, or locating loss
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- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of temperature, pressure on-line testing and calibration multifunction conjunctions, including adapter body, block temperature sensor and manual work state switching valve；At least provided with two block temperature sensor installing ports on the tail end end face of adapter body, and, it is additionally provided with flat on the tail end of adapter body, block temperature sensor is installed in block temperature sensor installing port, block temperature sensor is threadedly coupled with block temperature sensor installing port, the other end of adapter body is equipped with connector and installs interface, and it is self sealss circular cone external thread structure that connector, which installs interface, is connect with fluid media (medium) conveyance conduit sample tap；The inside of adapter body offers medium runner and mounting hole, and manual work state switching valve is through mounting hole, and the on off operating mode of changeable medium runner.Technical solution through the invention, can be achieved at the same time pressure medium, temperature monitoring and instrument on-line testing and/or calibration is difunctional, compact-sized, saves space, reduces cost.
Description
Technical field
The present invention relates to oil exploitation and collection defeated transfer pipeline joint technique field, more particularly to a kind of temperature
Degree, pressure on-line testing and calibration multifunction conjunction.
Background technology
Recover the oil with need to install in the defeated transfer pipeline of oil gathering instrument that some monitor pressure medium and temperature simultaneously or
Transmitter realizes scene and long-range monitoring, and realize the automatic control of production process to realize the online acquisition of pressure, temperature
System.
But, on the one hand, outdoor due to being exposed to mostly applied to the instrument at oil transportation field scene, operating mode is poor,
The precision of instrument is easy to decline, in order to ensure that measuring instrument can accurately reflect the pressure and temperature value of pumped (conveying) medium, need by
Specific time interval carries out artificial point inspection or calibration corresponding instrument just considerably increases labor to ensure the accuracy of measurement result
Fatigue resistance；
On the other hand, existing pressure monitoring device is to open pressure port on medium main pipeline mostly, is pacified on pressure port
Needle valve or instrument valve are filled, then pressure gauge or pressure transmitter are installed in valve export, and it is in pipe to monitor medium temperature then
Temperature probe is placed in the thermometric blind hole reserved on road, but whether this mode can only visually observe instrument in equipment point-detecting
It is working, not can determine that whether data are accurate, monitoring whether accurate to judgement instrument, generally all need to tear open measuring instrument
Under, then to calibration on special calibrating installation it is qualified after be reinstalled.For pressure gauge or pressure transmitter, some occasions can
Threeway is connected after taking gauge valve, then one gauge valve of adjunction realizes on-the-spot testing verification as the method for standard scale interface, and
For thermometric instrument then just feasible online comparison method not properly.
Finally, existing calibration equipment cannot achieve field-checking, and connector is more, be easy leakage, and occupied space,
Overall cost is high.
Therefore, how a kind of temperature, pressure on-line testing and calibration multifunction conjunction are provided, medium is can be achieved at the same time
The problem of pressure, temperature monitoring and instrument on-line testing and/or calibration are those skilled in the art's urgent need to resolve.
Invention content
In view of this, the present invention provides a kind of temperature, pressure on-line testing and calibration multifunction conjunction, it can not only
It realizes that pressure medium, temperature monitoring and instrument on-line testing and/or calibration are difunctional and compact-sized simultaneously, saves sky
Between, cost is reduced, the working strength of verification personnel is alleviated, is easily installed and operates.
To achieve the goals above, the present invention adopts the following technical scheme that：
A kind of temperature, pressure on-line testing and calibration multifunction conjunction, including adapter body, block temperature sensor and hand
It starts building to make state switching valve；Wherein, at least provided with two block temperature sensor installing ports on the tail end end face of adapter body, and
And flat is additionally provided on the tail end of adapter body, block temperature sensor, temperature sensing are installed in block temperature sensor installing port
Device seat is threadedly coupled with block temperature sensor installing port, and the other end of adapter body is equipped with connector and installs interface, and connector installation connects
Mouth is self sealss circular cone external thread structure, is connect with fluid media (medium) conveyance conduit sample tap；The inside of adapter body offers Jie
Mass flow road and mounting hole, the manual work state switching valve is through mounting hole, and the on off operating mode of changeable medium runner.
Further, operating pressure table interface and master gauge interface are additionally provided in adapter body；Operating pressure table
Interface and master gauge interface are opened in the both sides of manual work state switching valve, also, operating pressure table interface and standard
Pressure gauge connection is connected to by medium runner.
Further, master gauge or portable pressure calibration device are installed on master gauge interface.
Further, manual work state switching valve is manual guiding valve.
Further, manual guiding valve includes valve pocket, spool, adjusting screw, adjustment seat and banking pin；Valve pocket is Precision Machining
Cylinder sleeve, valve pocket is radially provided with two groups of straight-through runner holes, and runner hole is corresponding with the medium runner inside adapter body；Valve
The external cylindrical surface of set is interference fitted with mounting hole, and the inner cylinder face of valve pocket is connect with seal spool；Spool is plunger type spool, valve
It is set in the middle part of core there are two annular channel slot, the upper end of spool is connect with adjusting screw screw threads for fastening, and adjusting screw top is equipped with
The middle part screw thread of regulation handle, adjusting screw is connected with adjustment seat, and adjustment seat is welded with adapter body；The lower end of spool with
Banking pin screw threads for fastening connects.
By taking above scheme, the beneficial effects of the invention are as follows：
Spool can move axially under the adjusting of adjusting screw in valve pocket, you can by switching diversion trench and valve pocket water conservancy diversion
The different location in hole and in control joint main body medium runner on off operating mode, just determine three kinds of states of operating pressure table,
It twists and adjusts adjusting screw, band movable valve plug moves up and down therewith, changes the position of diversion trench, and the position of spool retraction is positioned by banking pin
It sets, and can assist reversely twisting spool, when spool is in bottom, operating pressure table interface individually (is conveyed with medium runner
Medium) it communicates, master gauge interface is then in closed state, the pressure of the pumped (conveying) medium of operating pressure table instruction at this time；Work as valve
When core is in an intermediate fragment position, operating pressure table interface and master gauge interface with medium runner (pumped (conveying) medium) phase
Logical, operating pressure table and master gauge indicate pressure medium at this time, in this state, can pass through comparison work pressure gauge
With the error of indication of master gauge, and then verify operating pressure table current indicating value it is whether accurate；When spool reaches top dead centre
When, operating pressure table interface is blocked with medium runner (pumped (conveying) medium), and master gauge orifice, at this point, normal pressure
Table interface installs pressure calibration device, can to operating pressure table carry out gamut calibration, can also to operating pressure table into
Row is safeguarded and is replaced.Multiple Pipe installing interfaces are integrated into an interface by the multifunction conjunction of the present invention, eliminate multiple instrument
Meter valve and connector facilitate the calibration of site pressure table and thermometric instrument, improve work efficiency, save space,
Reduce equipment cost.
Further, block temperature sensor includes installation sheath, rubber ring, swivel nut and gasket；Sheath is installed by one end
The welding ends outside of the erection joint composition of closed tube body and other end welding, erection joint is equipped with and block temperature sensor is pacified
The external screw thread and gasket mounting groove of mouth connection are filled, gasket is installed in gasket mounting groove, the other end of erection joint is set
There are internal thread and flat, be threadedly coupled with swivel nut, rubber ring setting is inside installation sheath.
Further, temperature sensor is installed, temperature sensor is pressed from both sides by rubber ring and swivel nut on block temperature sensor
Close be encapsulated in installation sheath is directly installed on installation sheath to form airtight chamber or itself screwed temperature sensor
On.
Further, installation sheath is the stainless steel with antiseptic property.
It is using the advantageous effects of above-mentioned technical proposal, block temperature sensor is easily installed or fixed temperature sensing
Device, sealing effect is good, also, forms an airtight chamber in installation sheath, ensure that temperature sensor in installation sheath
Actual induction temperature, temperature sensor are fixed using rubber ring clamping mode, allow user to customize different length, difference straight
The temperature sensor of diameter avoids the cramped construction because of multifunction conjunction, leads to worksheet and the interference of standard scale spatially.
Further, medium runner is F shape runners.
Further, equipped with the plug being detachably connected on master gauge interface.
It is using the advantageous effects of above-mentioned technical proposal, by the installation of plug, avoids operation error or interior
It is leaked when portion's seal failure, and then the danger that high-pressure medium sprays, improves safety.
It can be seen via above technical scheme that compared with prior art, the present disclosure provides a kind of temperature, pressure to exist
Line Testing And Regulating multifunction conjunction can be achieved at the same time pressure medium, temperature monitoring and instrument on-line testing and/or calibration
Difunctional, complete function is compact-sized, rationally distributed, is easily installed and operates, safe to use, safeguards simply, reduces use
Cost.
Description of the drawings
In order to more clearly explain the embodiment of the invention or the technical proposal in the existing technology, to embodiment or will show below
There is attached drawing needed in technology description to be briefly described, it should be apparent that, the accompanying drawings in the following description is only this
The embodiment of invention for those of ordinary skill in the art without creative efforts, can also basis
The attached drawing of offer obtains other attached drawings.
Fig. 1 attached drawings are that a kind of temperature, pressure on-line testing and the entirety of calibration multifunction conjunction provided by the invention are tied
Structure schematic diagram；
Fig. 2 attached drawings are the schematic layout pattern of operating pressure table interface and master gauge interface of the present invention；
Fig. 3 attached drawings be Fig. 2 in schematic layout pattern from A to the block temperature sensor of instruction；
Fig. 4 attached drawings be a kind of temperature provided by the invention, pressure on-line testing and calibration multifunction conjunction sectional view；
Fig. 5 attached drawings are the partial sectional view of the end faces A-A in Fig. 4；
Fig. 6 attached drawings are the partial sectional view of the end faces B-B in Fig. 4；
Fig. 7 attached drawings are the structural schematic diagram of block temperature sensor provided by the invention.
Specific implementation mode
The following is a clear and complete description of the technical scheme in the embodiments of the invention, it is clear that described embodiment
Only a part of the embodiment of the present invention, instead of all the embodiments.Based on the embodiments of the present invention, the common skill in this field
The every other embodiment that art personnel are obtained without making creative work belongs to the model that the present invention protects
It encloses.
As illustrated in the accompanying drawings from 1 to 3, the embodiment of the invention discloses a kind of temperature, pressure on-line testing and calibration multifunctional access
Head, including adapter body 1, block temperature sensor 2 and manual work state switching valve 3；Wherein, the tail end end face of adapter body 1
On at least provided with two block temperature sensor installing ports 11, also, flat, temperature sensing are additionally provided on the tail end of adapter body 1
Block temperature sensor 2 is installed, block temperature sensor 2 connects with 11 screw thread of block temperature sensor installing port in device seat installing port 11
It connecing, the other end of adapter body 1 is equipped with connector and installs interface 12, and it is self sealss circular cone external thread structure that connector, which installs interface 12,
It is connect with fluid media (medium) conveyance conduit sample tap；The inside of adapter body 1 offers medium runner and mounting hole, the manual work
Make state switching valve 3 through mounting hole, and the on off operating mode of changeable medium runner.Technical solution through the invention is more
Multiple Pipe installing interfaces are integrated into an interface by functional connector, can be achieved at the same time pressure medium, temperature monitoring and instrument
On-line testing and/or calibration it is difunctional, it is compact-sized, eliminate multiple instrument valves and connector, facilitate site pressure table with
The calibration of thermometric instrument, saves space, reduces cost, alleviates the working strength of verification personnel.
Specifically, being additionally provided with operating pressure table interface 13 and master gauge interface 14 in adapter body 1；Operating pressure
Table interface 13 and master gauge interface 14 are opened in the both sides of manual work state switching valve 3, also, operating pressure table interface
13 are connected to master gauge interface 14 by medium runner.
Specifically, being equipped with master gauge or portable pressure calibration device on master gauge interface 14.
Specifically, manual work state switching valve 3 is manual guiding valve.
As shown in figs. 4 through 6, specifically, manual guiding valve includes valve pocket 31, spool 32, adjusting screw 33,34 and of adjustment seat
Banking pin 35；Valve pocket 31 is precision machined cylinder sleeve, and valve pocket 31 is radially provided with two groups of straight-through runner holes, runner hole and connector
Medium runner inside main body 1 is corresponding；The external cylindrical surface of valve pocket 31 is interference fitted with mounting hole, the inner cylinder face of valve pocket 31 with
Spool 32 is tightly connected；Spool 32 is plunger type spool, and the middle part of spool 32 sets that there are two annular channel slot, the upper ends of spool 32
It is connect with 33 screw threads for fastening of adjusting screw, 33 top of adjusting screw is equipped with regulation handle, the middle part screw thread activity of adjusting screw 33
It is connected with adjustment seat 34, adjustment seat 34 is welded with adapter body 1；The lower end of spool 32 is connect with 35 screw threads for fastening of banking pin.
As shown in Fig. 7, specifically, block temperature sensor 2 includes installation sheath 21, rubber ring 22, swivel nut 23 and sealing
Pad 24；The erection joint that installation sheath 21 is welded by the closed tube body in one end and the other end forms, outside the welding ends of erection joint
Portion is equipped with the external screw thread being connect with block temperature sensor installing port 11 and gasket mounting groove, is equipped in gasket mounting groove close
The other end of packing 24, erection joint is equipped with internal thread and flat, is threadedly coupled with swivel nut 23, and the setting of rubber ring 22 is protected in installation
Inside set 21.
Specifically, being equipped with temperature sensor on block temperature sensor 2, temperature sensor passes through rubber ring 22 and swivel nut 23
In installing, sheath 21 is interior to be directly installed on installation to pinch seal to form airtight chamber or itself screwed temperature sensor
On sheath 21.
Specifically, installation sheath 21 is the stainless steel with antiseptic property.
Specifically, medium runner is F shape runners.
Specifically, equipped with the plug being detachably connected on master gauge interface 14.
Spool 32 of the present invention can move axially, you can led by switching under the adjusting of adjusting screw 33 in valve pocket 31
The different location of chute and 31 deflector hole of valve pocket and in control joint main body 1 medium runner on off operating mode, just determine work
Three kinds of states of pressure gauge, respectively：
1) working condition：When spool 32 is in bottom, individually (conveying is situated between operating pressure table interface 13 with medium runner
Matter) it communicates, master gauge interface 14 is then in closed state, the pressure of the pumped (conveying) medium of operating pressure table instruction at this time；
2) state is verified：When spool 32 is in an intermediate fragment position, operating pressure table interface 13 and master gauge connect
Mouth 14 is communicated with medium runner (pumped (conveying) medium), and operating pressure table and master gauge indicate pressure medium at this time, at this
, can be by the error of indication of comparison work pressure gauge and master gauge under state, and then verify the current of operating pressure table
Whether indicating value is accurate；
3) align mode：When spool 32 reaches top dead centre, operating pressure table interface 13 and medium runner (pumped (conveying) medium)
It blocks, is connected to master gauge interface 14, at this point, master gauge interface 14 installs portable pressure calibration device, it can
To carry out gamut calibration to operating pressure table, operating pressure table can also be safeguarded and be replaced.
In order to further embody the advantageous effects that the present invention generates, the present invention can also be to pumped (conveying) medium temperature monitoring
Instrument is verified, and mounting temperature sensor seat is distinguished in two block temperature sensor installing ports 11, in block temperature sensor
Installment work temperature sensor and standard temperature sensor respectively, to two, a thermometer indicates temperature that value is compared, and can verify
Whether current operating temperature transmitter or thermometer indicated value are accurate.
Each embodiment is described by the way of progressive in this specification, the highlights of each of the examples are with other
The difference of embodiment, just to refer each other for identical similar portion between each embodiment.For device disclosed in embodiment
For, since it is corresponded to the methods disclosed in the examples, so description is fairly simple, related place is said referring to method part
It is bright.
The foregoing description of the disclosed embodiments enables those skilled in the art to implement or use the present invention.
Various modifications to these embodiments will be apparent to those skilled in the art, as defined herein
General Principle can be realized in other embodiments without departing from the spirit or scope of the present invention.Therefore, of the invention
It is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase one
The widest range caused.
Claims (10)
1. a kind of temperature, pressure on-line testing and calibration multifunction conjunction, which is characterized in that including adapter body (1), temperature
Sensor holder (2) and manual work state switching valve (3)；
At least provided with two block temperature sensor installing ports (11) on the tail end end face of the adapter body (1), also, described connect
It is additionally provided with flat on the tail end of head main body (1), the temperature sensor is installed in the block temperature sensor installing port (11)
Seat, the block temperature sensor is threadedly coupled with the block temperature sensor installing port (11), the adapter body (1) it is another
End is equipped with connector installation interface (12), and the connector installation interface (12) is self sealss circular cone external thread structure, with fluid media (medium)
Conveyance conduit sample tap connects；The inside of the adapter body (1) offers medium runner and mounting hole, the manual work shape
The on off operating mode of the medium runner can be switched through the mounting hole in state switching valve (3).
2. a kind of temperature according to claim 1, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
It is additionally provided with operating pressure table interface (13) and master gauge interface (14) on the adapter body (1)；
The operating pressure table interface (13) and the master gauge interface (14) are opened in the manual work state switching
The both sides of valve (3), also, the operating pressure table interface (13) and the master gauge interface (14) pass through the medium flow field
Road is connected to.
3. a kind of temperature according to claim 2, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
Master gauge or portable pressure calibration device are installed on the master gauge interface (14).
4. a kind of temperature according to claim 1, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
The manual work state switching valve (3) is manual guiding valve.
5. a kind of temperature according to claim 4, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
The manual guiding valve includes valve pocket (31), spool (32), adjusting screw (33), adjustment seat (34) and banking pin (35)；
The valve pocket (31) is precision machined cylinder sleeve, and the valve pocket (31) is radially provided with two groups of straight-through runner holes, described
Runner hole is corresponding with the medium runner that the adapter body (1) is internal；The external cylindrical surface of the valve pocket (31) with it is described
Mounting hole is interference fitted, and inner cylinder face and the spool (32) of the valve pocket (31) are tightly connected；The spool (32) is column
Plug spool, sets that there are two annular channel slot, upper end and the adjusting spiral shells of the spool (32) in the middle part of the spool (32)
The connection of (33) screw threads for fastening is followed closely, adjusting screw (33) top is equipped with regulation handle, the middle part spiral shell of the adjusting screw (33)
Line is connected with adjustment seat (34), and the adjustment seat (34) is welded with the adapter body (1)；The lower end of the spool (32)
It is connect with the banking pin (35) screw threads for fastening.
6. a kind of temperature according to claim 1, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
The block temperature sensor (2) includes installation sheath (21), rubber ring (22), swivel nut (23) and gasket (24)；
The erection joint that the installation sheath (21) is welded by the closed tube body in one end and the other end forms, the erection joint
The external screw thread being connect with the block temperature sensor installing port (11) and gasket mounting groove, the sealing are equipped with outside welding ends
The gasket (24) is installed, the other end of the erection joint is equipped with internal thread and flat, with the spiral shell in pad mounting groove
It covers (23) to be threadedly coupled, rubber ring (22) setting is internal in the installation sheath (21).
7. a kind of temperature according to claim 6, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
Temperature sensor is installed, the temperature sensor passes through the rubber ring (22) and described on the block temperature sensor (2)
Swivel nut (23) pinch seal is interior to form airtight chamber or itself screwed temperature biography in the installation sheath (21)
Sensor is directly installed on the installation sheath (21).
8. a kind of temperature according to claim 7, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
The installation sheath (21) is the stainless steel with antiseptic property.
9. a kind of temperature according to claim 1, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
The medium runner is F shape runners.
10. a kind of temperature according to claim 2, pressure on-line testing and calibration multifunction conjunction, which is characterized in that
Equipped with the plug being detachably connected on the master gauge interface (14).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706024.7A CN108644494A (en) | 2018-06-27 | 2018-06-27 | A kind of temperature, pressure on-line testing and calibration multifunction conjunction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810706024.7A CN108644494A (en) | 2018-06-27 | 2018-06-27 | A kind of temperature, pressure on-line testing and calibration multifunction conjunction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN108644494A true CN108644494A (en) | 2018-10-12 |
Family
ID=63750576
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810706024.7A Pending CN108644494A (en) | 2018-06-27 | 2018-06-27 | A kind of temperature, pressure on-line testing and calibration multifunction conjunction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108644494A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915733A (en) * | 2019-04-11 | 2019-06-21 | 西安培华学院 | A kind of multi-functional temp sensor |
| CN111649870A (en) * | 2020-06-30 | 2020-09-11 | 沈阳市特种仪表厂 | Multifunctional pressure instrument |
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| FR621532A (en) * | 1926-09-14 | 1927-05-12 | Brown Instr Co | Improvements to manometers |
| CN1066323A (en) * | 1991-07-02 | 1992-11-18 | 浙江瑞安永久机电研究所 | Four-way plunger valve |
| CN2735107Y (en) * | 2004-09-19 | 2005-10-19 | 丁海军 | Gauge cock valve |
| CN101303087A (en) * | 2008-06-27 | 2008-11-12 | 宁波中迪机械有限公司 | Meter checking combined valve |
| US20090107560A1 (en) * | 2007-10-30 | 2009-04-30 | Superior Products, Inc. | Switchover valve |
| CN201327795Y (en) * | 2008-11-06 | 2009-10-14 | 上海卓电电气有限公司 | Assembly joint for checking SF* gas density controller in SF* electric switch |
| CN202392164U (en) * | 2011-12-30 | 2012-08-22 | 潍坊百乐卫浴制品有限公司 | Water mixing valve capable of automatically regulating pressure |
| CN203163881U (en) * | 2013-04-24 | 2013-08-28 | 桐乡西子仪表科技有限公司 | Combined type temperature sensor |
| CN208348716U (en) * | 2018-06-27 | 2019-01-08 | 荆州市明德科技有限公司 | A kind of temperature, pressure on-line testing and calibration multifunction conjunction |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| FR621532A (en) * | 1926-09-14 | 1927-05-12 | Brown Instr Co | Improvements to manometers |
| CN1066323A (en) * | 1991-07-02 | 1992-11-18 | 浙江瑞安永久机电研究所 | Four-way plunger valve |
| CN2735107Y (en) * | 2004-09-19 | 2005-10-19 | 丁海军 | Gauge cock valve |
| US20090107560A1 (en) * | 2007-10-30 | 2009-04-30 | Superior Products, Inc. | Switchover valve |
| CN101303087A (en) * | 2008-06-27 | 2008-11-12 | 宁波中迪机械有限公司 | Meter checking combined valve |
| CN201327795Y (en) * | 2008-11-06 | 2009-10-14 | 上海卓电电气有限公司 | Assembly joint for checking SF* gas density controller in SF* electric switch |
| CN202392164U (en) * | 2011-12-30 | 2012-08-22 | 潍坊百乐卫浴制品有限公司 | Water mixing valve capable of automatically regulating pressure |
| CN203163881U (en) * | 2013-04-24 | 2013-08-28 | 桐乡西子仪表科技有限公司 | Combined type temperature sensor |
| CN208348716U (en) * | 2018-06-27 | 2019-01-08 | 荆州市明德科技有限公司 | A kind of temperature, pressure on-line testing and calibration multifunction conjunction |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109915733A (en) * | 2019-04-11 | 2019-06-21 | 西安培华学院 | A kind of multi-functional temp sensor |
| CN111649870A (en) * | 2020-06-30 | 2020-09-11 | 沈阳市特种仪表厂 | Multifunctional pressure instrument |
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