CN211087713U - A differential pressure transmitter calibration equipment for teaching - Google Patents
A differential pressure transmitter calibration equipment for teaching Download PDFInfo
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- CN211087713U CN211087713U CN201921642287.2U CN201921642287U CN211087713U CN 211087713 U CN211087713 U CN 211087713U CN 201921642287 U CN201921642287 U CN 201921642287U CN 211087713 U CN211087713 U CN 211087713U
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- differential pressure
- pressure transmitter
- teaching
- injection bucket
- outlet
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Abstract
The utility model discloses a differential pressure transmitter calibration equipment for teaching, including differential pressure transmitter and notes cask, differential pressure transmitter fixed mounting is on the movable support, the lateral wall of notes cask is from last to having seted up a plurality of outlets down in proper order, the outlet contains the stop valve and connects the plug soon, differential pressure transmitter's positive negative pole all connects the outlet respectively through plastic hose, be provided with the scale on the outer wall of notes cask, the top of notes cask is provided with the water inlet, the bottom of notes cask is provided with the outlet valve, the beneficial effects of the utility model are that: the check of each check point can be realized through the arrangement of the water filling port and the water discharging port; meanwhile, the measuring liquid level change state during teaching can be more intuitively and vividly solved by utilizing simple physical phenomena.
Description
Technical Field
The utility model relates to a differential pressure transmitter calibration technical field specifically is a differential pressure transmitter calibration equipment for teaching.
Background
The differential pressure transmitter is widely used in the process industry, the calibration work is particularly important, at present, in the teaching process, two common calibration methods of the differential pressure transmitter are adopted, under 0.6MPa, compressed air is used as a pressure source, the pressure source is higher than 0.6MPa, and a piston type device is used for pressurizing transformer oil to be used as the pressure source to calibrate the differential pressure transmitter.
In the method, when the differential pressure transmitter is used for detecting the liquid level, the pressure value of the check point cannot be intuitively corresponding to the liquid level value. Especially, when the check point relates to the migration problem, the beginner is difficult to understand.
SUMMERY OF THE UTILITY MODEL
An object of the utility model is to provide a differential pressure transmitter calibration equipment for teaching to solve the problem that proposes in the above-mentioned background art.
In order to achieve the above object, the utility model provides a following technical scheme: the utility model provides a differential pressure transmitter calibration equipment for teaching, includes differential pressure transmitter and notes cask, differential pressure transmitter fixed mounting is on the movable support, the lateral wall of notes cask is from last to having seted up a plurality of outlet down in proper order, the outlet contains stop valve and quick-connect plug, differential pressure transmitter's positive negative pole all connects the outlet respectively through plastic hose, be provided with the scale on the outer wall of notes cask, the top of notes cask is provided with the water inlet, the bottom of notes cask is provided with the outlet valve.
Preferably, the bottom fixed mounting of notes cask has the support, it lifts up through the support to annotate the cask, just the height of the bottom support of notes cask is greater than the height of differential pressure transmitter bottom movable support.
Preferably, the number of the water outlets is not less than four groups, wherein one group is arranged at the position close to the top of the water injection barrel, and the other three groups are arranged at the position close to the bottom of the water injection barrel.
Preferably, the other end of the plastic hose connected with the negative electrode of the differential pressure transmitter is fixedly connected with a water outlet at the top of the water injection bucket, and the other end of the plastic hose connected with the positive electrode of the differential pressure transmitter is fixedly connected with a water outlet at the bottom of the water injection bucket.
Preferably, the differential pressure transmitter is electrically connected with a standard meter and a display meter, wherein the standard meter and the display meter are both externally connected with a power supply.
Compared with the prior art, the beneficial effects of the utility model are that: the check of each check point can be realized through the arrangement of the water filling port and the water discharging port; meanwhile, the measuring liquid level change state during teaching can be more intuitively and vividly solved by utilizing simple physical phenomena.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1 differential pressure transmitter, 2 water injection buckets, 3 movable supports, 4 water outlets, 5 stop valves, 6 quick connecting plugs, 7 plastic hoses, 8 graduated scales, 9 water inlets, 10 water outlet valves, 11 standard meters and 12 display meters.
Detailed Description
The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.
Referring to fig. 1, the present invention provides a technical solution: the utility model provides a differential pressure transmitter calibration equipment for teaching, includes differential pressure transmitter 1 and water injection bucket 2, 1 fixed mounting of differential pressure transmitter is on movable support 3, a plurality of outlet 4 have been seted up to down in proper order from last to the lateral wall of water injection bucket 2, outlet 4 contains stop valve 5 and quick connector plug 6, differential pressure transmitter 1's positive negative pole all connects the drainage mouth 4 respectively through plastic hose 7, be provided with scale 8 on the outer wall of water injection bucket 2, the top of water injection bucket 2 is provided with water inlet 9, the bottom of water injection bucket 2 is provided with outlet valve 10.
It is worth noting that a support is fixedly installed at the bottom of the water injection barrel 2, the water injection barrel 2 is lifted up through the support, and the height of the support at the bottom of the water injection barrel 2 is larger than that of the movable support 3 at the bottom of the differential pressure transmitter 1.
The number of the water outlets 4 is not less than four groups, wherein one group is arranged at the position close to the top of the water injection bucket 2, and the other three groups are arranged at the position close to the bottom of the water injection bucket 2.
The other end of the plastic hose 7 connected with the negative electrode of the differential pressure transmitter 1 is fixedly connected with the water outlet 4 at the top of the water injection bucket 2, and the other end of the plastic hose 7 connected with the positive electrode of the differential pressure transmitter 1 is fixedly connected with the water outlet 4 at the bottom of the water injection bucket 2.
It is worth noting that the differential pressure transmitter 1 is electrically connected with a standard meter 11 and a display meter 12, wherein the standard meter 11 and the display meter 12 are both externally connected with a power supply.
When the utility model works, firstly, the differential pressure transmitter 1 is fixed on the proper height of the movable bracket 3, then the differential pressure transmitter is connected with the standard meter and the display meter, the differential pressure transmitter 1 is connected with the water injection bucket 2 through the plastic hose 7, the stop valve 5 is opened, and then the water outlet valve 10 is closed; the water inlet 9 is opened, water is injected into the water injection barrel 2 to discharge air, the water level in the water injection barrel 2 is at a zero position by adjusting the water outlet valve 10 and the water inlet 9, the water level is observed through the standard meter and the display meter, the water level in the water injection barrel 2 is controlled to be at a full level, and the positive and negative formation verification work of the differential pressure transmitter 1 can be completed after repeated times.
The first embodiment is as follows:
different pressure taking points (namely the soft plastic hose is connected with different water outlets) are selected to demonstrate the change of the migration volume of the differential pressure transmitter under the condition that the installation position of the differential pressure transmitter is not changed;
example two:
the height of the movable support is adjusted, so that the change condition of the migration volume of the differential pressure transmitter can be demonstrated under the condition that the differential pressure transmitter is at different installation positions (namely installation height).
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (5)
1. The utility model provides a differential pressure transmitter calibration equipment for teaching, includes differential pressure transmitter (1) and water injection bucket (2), its characterized in that: differential pressure transmitter (1) fixed mounting is on movable support (3), a plurality of outlet (4) have been seted up from last to down in proper order to the lateral wall of injection bucket (2), outlet (4) contain stop valve (5) and connect plug (6) soon, outlet (4) are all connected respectively through plastic hose (7) to the positive negative pole of differential pressure transmitter (1), be provided with scale (8) on the outer wall of injection bucket (2), the top of injection bucket (2) is provided with water inlet (9), the bottom of injection bucket (2) is provided with outlet valve (10).
2. The differential pressure transmitter calibration apparatus for teaching of claim 1, wherein: the bottom fixed mounting of injection bucket (2) has the support, injection bucket (2) lift up through the support, just the height of the bottom support of injection bucket (2) is greater than the height of differential pressure transmitter (1) bottom movable support (3).
3. The differential pressure transmitter calibration apparatus for teaching of claim 1, wherein: the number of the water outlets (4) is not less than four groups, wherein one group is arranged at the position close to the top of the water injection bucket (2), and the other three groups are arranged at the position close to the bottom of the water injection bucket (2).
4. The differential pressure transmitter calibration apparatus for teaching of claim 1, wherein: with other end fixed connection water injection bucket (2) top outlet (4) of the plastic hose (7) that differential pressure transmitter (1) negative pole is connected, with other end fixed connection water injection bucket (2) bottom outlet (4) of the plastic hose (7) that differential pressure transmitter (1) positive pole is connected.
5. The differential pressure transmitter calibration apparatus for teaching of claim 1, wherein: differential pressure transmitter (1) electric connection standard meter (11) and display meter (12), wherein, standard meter (11) and display meter (12) all external power source.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642287.2U CN211087713U (en) | 2019-09-29 | 2019-09-29 | A differential pressure transmitter calibration equipment for teaching |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921642287.2U CN211087713U (en) | 2019-09-29 | 2019-09-29 | A differential pressure transmitter calibration equipment for teaching |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211087713U true CN211087713U (en) | 2020-07-24 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921642287.2U Active CN211087713U (en) | 2019-09-29 | 2019-09-29 | A differential pressure transmitter calibration equipment for teaching |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211087713U (en) |
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2019
- 2019-09-29 CN CN201921642287.2U patent/CN211087713U/en active Active
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