CN206945217U - A kind of pressure transmitter detection means - Google Patents
A kind of pressure transmitter detection means Download PDFInfo
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- CN206945217U CN206945217U CN201720840261.3U CN201720840261U CN206945217U CN 206945217 U CN206945217 U CN 206945217U CN 201720840261 U CN201720840261 U CN 201720840261U CN 206945217 U CN206945217 U CN 206945217U
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- pressure
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Abstract
The utility model discloses a kind of pressure transmitter detection means, described device includes：Compression pump, supervisor, 4 pass joints, 3 branch pipes；Wherein, supervisor one end is connected with compression pump, supervisor's other end is connected with the upper port of 4 pass joints, one end of 3 branch pipes is connected with 3 ports of 4 pass joints respectively, the other end of 3 branch pipes is connected with the first joint, the second joint, the 3rd joint respectively, first joint is connected with master gauge, and the second joint and the 3rd joint are used to be connected with pressure transmitter to be detected, realizes the technique effect for completing detection that pressure transmitter detection means can efficiently, inexpensive.
Description
Technical field
Pressure transmitter research field is the utility model is related to, in particular it relates to a kind of pressure transmitter detection means.
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 that load cell is experienced, liquid can be transformed into the electric signal of standard by it
(such as 4~20mADC), measured with supplying the secondary meters such as indicator alarm, recorder, adjuster, indicate and process adjust
Section.
Pressure transmitter is a kind of sensor the most commonly used 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., it following is a brief introduction of the knowledge such as the principle, structure, use, maintenance and verification of several pressure (differential pressure) transmitter.
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)
It is linear to flow size, 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 use atmospheric pressure or vacuum, act on the both sides isolation diaphragm of δ first (i.e. sensing element), by every
Measuring diaphragm both sides are sent to from the filling liquid in piece and element.
Pressure transmitter respectively forms a capacitor by the electrode on measuring diaphragm and both sides insulating trip.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 demodulating link.
The electric elements that pressure transmitter experiences pressure are generally resistance strain gage, 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 by special binder to be produced on mechanics strain 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 required to detect it before dispatching from the factory, and existing detection mode is to be fixed on mark
Detected on quasi- pipeline, the pressure of standard pipe is constant, judges whether it is qualified according to the reading of pressure transmitter, every time only
One can be detected, detection efficiency is relatively low, and needs to build special standard testing pipeline, and cost is higher.
In summary, the application utility model people is during the application utility model technical scheme is realized, in discovery
State technology and following technical problem at least be present：
In the prior art, existing pressure transmitter detection has that detection efficiency is relatively low and the higher technology of testing cost
Problem.
Utility model content
The utility model provides a kind of pressure transmitter detection means, solves existing pressure transmitter detection and exists
Detection efficiency is relatively low and the higher technical problem of testing cost, realize pressure transmitter detection means can efficiently, it is inexpensive
Completion detection technique effect.
In order to solve the above technical problems, this application provides a kind of pressure transmitter detection means, described device includes：
Compression pump, supervisor, 4 pass joints, 3 branch pipes；Wherein, supervisor one end is connected with compression pump, is responsible for the other end and 4 and is led to
The upper port connection of joint, one end of 3 branch pipes are connected with 3 ports of 4 pass joints respectively, the other end difference of 3 branch pipes
It is connected with the first joint, the second joint, the 3rd joint, the first joint is connected with master gauge, the second joint and the 3rd joint
For being connected with pressure transmitter to be detected.
Wherein, the principle of the application is, when needing to detect pressure transmitter, 2 pressure to be detected to be become
Send device to be docked respectively with the second joint and the 3rd joint, then open compression pump, the logical supervisor of air pressure and 4 pass joints are transmitted respectively
To 3 branch pipes, finally transmit into master gauge and 2 pressure transmitters to be detected, pass through pressure transmitter meter to be detected
The reading and the reading of master gauge that calculate judges whether pressure transmitter to be detected is qualified, the technical scheme of the application
It is relatively low that special standard pipe cost need not be built, and can disposably test multiple pressure transmitter efficiency to be detected compared with
It is high.
Wherein, compression pump is connected by controlling switch with power supply.
Wherein, described device also includes annulus, link, and link one end is connected with annulus, and the link other end and 4 leads to
Joint outer surface connects, and circle ring center's line overlaps with 4 pass joint center lines, and the first joint, the second joint, the 3rd joint uniformly divide
Cloth is fixed on annulus.
Wherein, by 4 pass-outs come gas the first joint, the second joint, are easily caused due to the position reason of joint
The air pressure of three joints is uneven, causes measurement result inaccurate, by circle ring center's line and 4 pass joint center line weights in the application
Close, the first joint, the second joint, the 3rd joint are uniformly distributed and be fixed on annulus so that the first joint, the second joint, the 3rd
The air pressure of joint is uniform and stable and equal so that measurement result is accurate.
Wherein, described device also includes：Guide rail, detection case；Two grooves are provided with detection case, groove is to be checked for fixing
Pressure measurement power transmitter, detection case upper end are openning shape, and detection case bottom plate is provided with pulley, and pulley is embedded in guide rail.Utilize detection
Case slides on guide rail, convenient that pressure transmitter transport to be detected comes, and is then detected, detection efficiency is higher.
Wherein, groove is respectively arranged on the left side and the right side screw, 2 screw mandrel one end through after the screw of detection case with groove
2 stator connections, 2 screw mandrel other ends are connected with 2 rotary handles respectively.Before detection, rotary handle is rotated, drives silk
Bar advances so that 2 stators carry out extruding fixation from left and right both direction to pressure transmitter to be detected.
Wherein, stator surface is provided with cushion pad, and the cushion pad is made of rubber, and the cushion pad surface is screw thread
Shape.Pressure transmitter surface can be protected using cushion pad, the fixed effect of friction guarantee can be increased by being arranged to shape of threads
Fruit.
Wherein, the guide rail is provided with limited block.Detection case can be fixed using limited block.
Wherein, the bottom portion of groove is provided with bottom end cover, and described bottom end cover one end and detection case hinge connection, bottom end cover are another
End is provided with metal connection end, and detection case is fixed with electromagnet with metal connection end corresponding position, and electromagnet is connected by switch and power supply
Connect.When having detected substandard product, closing switch, deenergization so that electromagnet loses magnetic force, and bottom end cover is opened,
So that underproof pressure transmitter is dropped in recycling case, it is easy to staff to be operated.
One or more technical schemes that the application provides, have at least the following technical effects or advantages：
Solve the detection of existing pressure transmitter and have that detection efficiency is relatively low and the higher technical problem of testing cost, it is real
The technique effect for completing detection that pressure transmitter detection means can efficiently, inexpensive is showed.
Brief description of the drawings
Accompanying drawing described herein is used for providing further understanding the utility model embodiment, forms the one of the application
Part, the restriction to the utility model embodiment is not formed；
Fig. 1 is the structural representation of pressure transmitter detection means in the application；
Fig. 2 is the connection diagram of annulus and link in the application；
Fig. 3 is the schematic side view of detection case in the application；
Fig. 4 is the internal structure schematic diagram of detection case in the application；
Fig. 5 is the connection diagram of bottom end cover in the application.
Embodiment
The utility model provides a kind of pressure transmitter detection means, solves existing pressure transmitter detection and exists
Detection efficiency is relatively low and the higher technical problem of testing cost, realize pressure transmitter detection means can efficiently, it is inexpensive
Completion detection technique effect.
In order to be more clearly understood that above-mentioned purpose of the present utility model, feature and advantage, below in conjunction with the accompanying drawings and tool
The utility model is further described in detail body embodiment.It should be noted that in the case where not conflicting mutually,
Feature in embodiments herein and embodiment can be mutually combined.
Many details are elaborated in the following description in order to fully understand the utility model, still, this practicality
It is new to be implemented using other different from the other modes in the range of being described herein, therefore, protection of the present utility model
Scope is not limited by following public specific embodiment.
Fig. 1-Fig. 5 is refer to, this application provides a kind of pressure transmitter detection means, described device includes：
Compression pump 1, supervisor's 2,4 pass joint, 3,3 branch pipes 4；Wherein, supervisor one end is connected with compression pump, is responsible for the other end
It is connected with the upper port of 4 pass joints, one end of 3 branch pipes is connected with 3 ports of 4 pass joints respectively, the other end of 3 branch pipes
Be connected respectively with the first joint 5, the second joint 6, the 3rd joint 7, the first joint is connected with master gauge 8, the second joint and
3rd joint is used to be connected with pressure transmitter 9 to be detected.
Wherein, the principle of the application is, when needing to detect pressure transmitter, 2 pressure to be detected to be become
Send device to be docked respectively with the second joint and the 3rd joint, then open compression pump, the logical supervisor of air pressure and 4 pass joints are transmitted respectively
To 3 branch pipes, finally transmit into master gauge and 2 pressure transmitters to be detected, pass through pressure transmitter meter to be detected
The reading and the reading of master gauge that calculate judges whether pressure transmitter to be detected is qualified, the technical scheme of the application
It is relatively low that special standard pipe cost need not be built, and can disposably test multiple pressure transmitter efficiency to be detected compared with
It is high.
Wherein, compression pump is connected by controlling switch with power supply.
Wherein, described device also includes annulus 10, link 11, and link one end is connected with annulus, the link other end
It is connected with 4 pass joint outer surfaces, circle ring center's line overlaps with 4 pass joint center lines, the first joint, the second joint, the 3rd joint
It is uniformly distributed and is fixed on annulus.
Wherein, by 4 pass-outs come gas the first joint, the second joint, are easily caused due to the position reason of joint
The air pressure of three joints is uneven, causes measurement result inaccurate, by circle ring center's line and 4 pass joint center line weights in the application
Close, the first joint, the second joint, the 3rd joint are uniformly distributed and be fixed on annulus so that the first joint, the second joint, the 3rd
The air pressure of joint is uniform and stable and equal so that measurement result is accurate.
Wherein, described device also includes：Guide rail 12, detection case 13；Two grooves 15 are provided with detection case, groove is used for solid
Fixed pressure transmitter to be detected, detection case upper end is openning shape, and detection case bottom plate is provided with pulley 14, and pulley is embedded in guide rail.
Slided using detection case on guide rail, it is convenient that pressure transmitter transport to be detected comes, then detected, detection efficiency
It is higher.
Wherein, groove is respectively arranged on the left side and the right side screw, 2 one end of screw mandrel 16 through after the screw of detection case with groove
2 stators 17 connect, 2 screw mandrel other ends are connected with 2 rotary handles 18 respectively.Before detection, rotary handle is rotated,
Screw mandrel is driven to advance so that 2 stators carry out extruding fixation from left and right both direction to pressure transmitter to be detected.
Wherein, stator surface is provided with cushion pad, and the cushion pad is made of rubber, and the cushion pad surface is screw thread
Shape.Pressure transmitter surface can be protected using cushion pad, the fixed effect of friction guarantee can be increased by being arranged to shape of threads
Fruit.
Wherein, the guide rail is provided with limited block.Detection case can be fixed using limited block.
Wherein, the bottom portion of groove is provided with bottom end cover 19, and described bottom end cover one end and detection case hinge connection, bottom end cover are another
One end is provided with metal connection end, and detection case is fixed with electromagnet 20 with metal connection end corresponding position, and electromagnet passes through switch and electricity
Source connects.When having detected substandard product, closing switch, deenergization so that electromagnet loses magnetic force, and bottom end cover is beaten
Open so that underproof pressure transmitter is dropped in recycling case, is easy to staff to be operated.
One or more technical schemes that the application provides, have at least the following technical effects or advantages：
Solve the detection of existing pressure transmitter and have that detection efficiency is relatively low and the higher technical problem of testing cost, it is real
The technique effect for completing detection that pressure transmitter detection means can efficiently, inexpensive is showed.
Although having been described for preferred embodiment of the present utility model, those skilled in the art once know substantially
Creative concept, then other change and modification can be made to these embodiments.So appended claims are intended to be construed to wrap
Include preferred embodiment and fall into having altered and changing for the scope of the utility model.
Obviously, those skilled in the art can carry out various changes and modification without departing from this practicality to the utility model
New spirit and scope.So, if these modifications and variations of the present utility model belong to the utility model claims and
Within the scope of its equivalent technologies, then the utility model is also intended to comprising including these changes and modification.
Claims (8)
1. a kind of pressure transmitter detection means, it is characterised in that described device includes：
Compression pump, supervisor, 4 pass joints, 3 branch pipes；Wherein, supervisor one end is connected with compression pump, is responsible for the other end and 4 pass joints
Upper port connection, one end of 3 branch pipes is connected with 3 ports of 4 pass joints respectively, and the other ends of 3 branch pipes is respectively with the
One joint, the second joint, the connection of the 3rd joint, the first joint are connected with master gauge, and the second joint and the 3rd joint are used for
It is connected with pressure transmitter to be detected.
2. pressure transmitter detection means according to claim 1, it is characterised in that compression pump passes through controlling switch and electricity
Source connects.
3. pressure transmitter detection means according to claim 1, it is characterised in that described device also includes annulus, connected
Frame is connect, link one end is connected with annulus, and the link other end is connected with 4 pass joint outer surfaces, circle ring center's line and 4 pass joints
Center line overlaps, and the first joint, the second joint, the 3rd joint are uniformly distributed and be fixed on annulus.
4. pressure transmitter detection means according to claim 1, it is characterised in that described device also includes：Guide rail, inspection
Measuring tank；Two grooves are provided with detection case, groove is used to fix pressure transmitter to be detected, and detection case upper end is openning shape, inspection
Measuring tank bottom plate is provided with pulley, and pulley is embedded in guide rail.
5. pressure transmitter detection means according to claim 1, it is characterised in that groove is respectively arranged on the left side and the right side spiral shell
Hole, 2 screw mandrel one end with 2 stators in groove through being connected after the screw of detection case, and 2 screw mandrel other ends are respectively with 2
Individual rotary handle connection.
6. pressure transmitter detection means according to claim 5, it is characterised in that stator surface is provided with cushion pad,
The cushion pad is made of rubber, and the cushion pad surface is shape of threads.
7. pressure transmitter detection means according to claim 4, it is characterised in that the guide rail is provided with limiting card
Part.
8. pressure transmitter detection means according to claim 4, it is characterised in that the bottom portion of groove is provided with lower end
Lid, described bottom end cover one end and detection case hinge connection, the bottom end cover other end are provided with metal connection end, and detection case is connected with metal
End corresponding position is fixed with electromagnet, and electromagnet is connected by switching with power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840261.3U CN206945217U (en) | 2017-07-11 | 2017-07-11 | A kind of pressure transmitter detection means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720840261.3U CN206945217U (en) | 2017-07-11 | 2017-07-11 | A kind of pressure transmitter detection means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206945217U true CN206945217U (en) | 2018-01-30 |
Family
ID=61368598
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720840261.3U Active CN206945217U (en) | 2017-07-11 | 2017-07-11 | A kind of pressure transmitter detection means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206945217U (en) |
-
2017
- 2017-07-11 CN CN201720840261.3U patent/CN206945217U/en active Active
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