CN202003523U - Emulated digital pressure gauge - Google Patents
Emulated digital pressure gauge Download PDFInfo
- Publication number
- CN202003523U CN202003523U CN2010206555542U CN201020655554U CN202003523U CN 202003523 U CN202003523 U CN 202003523U CN 2010206555542 U CN2010206555542 U CN 2010206555542U CN 201020655554 U CN201020655554 U CN 201020655554U CN 202003523 U CN202003523 U CN 202003523U
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- shell
- pressure gauge
- cover plate
- digital
- transparent cover
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Abstract
The utility model relates to an emulated digital pressure gauge, particularly to an emulated digital pressure gauge used in a teaching and training device, belonging to the technical field of display instruments. The emulated digital pressure gauge comprises a casing, a digital display, a signal line and a connecting pipe joint, wherein the casing is provided with a window, a transparent cover plate is arranged on the window, one side of the cover plate is equipped with a unit nameplate, the digital display is arranged in the casing, and a display window is directly facing the transparent cover plate. The emulated digital pressure gauge adopts a combination of the casing and the digital display, so reading is more direct and precise. Besides, with no need to connect an actual detected medium in training, the emulated digital pressure gauge is agile and reliable in detection, good in stability and long in service life. At the same time, the reading and the unit of the unit nameplate are combined to be a complete reading, the reading is very precise, thus the emulated digital pressure gauge has good market application value.
Description
Technical field
The utility model belongs to the display instrument technical field, relates to a kind of display instrument, is specifically related to a kind of simulated digital pressure measuring instruments that uses in teaching training apparatus, is used to imitate conventional online digital pressure measurement instrument.
Background technology
Conventional digital pressure gauge is the on-line measurement instrument, when the measured medium pressure of cut-in pressure table changes, pass to the pressure-sensitive diaphragm of sensor by pressure interface, sensor is changed the electric signal of induction through amplification, V/A, send CPU to handle, there is decimal number to demonstrate, thereby and provides analog quantity or digital quantity output to realize the process that pressure shows, controls and change is sent by the size of measuring pressure.
But on the industrial processes actual training device of enterprise or universities and colleges, need to use with the similar measurement instrument of actual industrial production process condition, need a kind ofly to be installed in that (actual is no material on the process simulation actual training device, stress-free equipment) simulated digital pressure measuring instruments, the instrument contour structures also needs to adopt the contour structures of true digital pressure gauge, the pressure that need experience medium when but actual online digital pressure gauge is measured just has pressure value to be shown, if when not experiencing the pressure of measured medium be the size that can not demonstrate pressure, therefore in the process simulation actual training device, to in instrument and connecting pipe, pass to actual medium and just can test and operation training, therefore on the process simulation actual training device of no material, need a kind of simulated digital tensimeter of the demonstration pressure size that can change according to the normalized current signal magnitude of 4～20mA DC.In addition, if with actual digital pressure pressure measuring instruments, must pass to actual material so in the actual training device and form real pressure, this just to actual training device cause making, experimentation cost height, have high input, the maintaining difficulty, nor be convenient to test, complicated operation, situations such as leakage easily take place, dangerous, real training can not be carried out, maintenance is wasted time and energy.
Summary of the invention
The purpose of the present utility model is to be the solution the deficiencies in the prior art, and the online digital pressure measurement instrument of a kind of simulation that provides.
The utility model is when practical application, need not to pass to actual medium, by a signal converter, dc current signal with 4～20mA is converted to the receptible signal of light-emitting diode display earlier, demonstrate by the size of wall pressure by light-emitting diode display again, the reading that can be on the online digital pressure gauge of emulation directly shows tested pressure signal, outward appearance, image and digital pressure gauge is the same really.
For achieving the above object, the present utility model is to realize by following technical scheme:
A kind of simulated digital tensimeter mainly comprises meter case, LED digital indicator, signal wire joint and connecting pipe joint; Described shell is a hollow structure, and the front of shell has a rectangle window, is fixed with transparent cover plate on the window, on the shell of transparent cover plate one side the pressure unit nameplate is installed; The shell periphery is provided with and is used for the simulated digital pressure measuring instrument is fixedly mounted on connecting pipe joint on the equipment under test; The shell internal fixation is equipped with the LED digital indicator, and the display window of digital indicator is over against transparent cover plate; The shell periphery is provided with and is used for signal wire joint that external signal line is linked to each other with in the enclosure LED digital indicator of fixed installation.
Usually, the manometric shell profile of described simulated digital is cylindrical; Described transparent cover plate is organic glass or plastic material.
The beneficial effects of the utility model are:
The mode that simulated digital tensimeter of the present utility model has adopted shell to combine with digital indicator, not only reading is directly accurate, convenient, and owing to need not to pass to actual measured medium during real training, only need the dc current signal of input 4～20mA, size with current signal simulation actual pressure signal, can not produce leakage phenomenon like this, cost and input have been reduced, be not subjected to the restriction of service condition, (4～20mA) size of standard demonstrates the size of institute's measuring pressure, can not use in having simulation training device in kind according to input current signal, everywhere can real training, have and detect flexibly, reliably, good stability, advantages such as life-span length; Simultaneously, the unit on reading and the unit nameplate is combined into a complete reading, and is very accurate, has good market using value.
Description of drawings
Fig. 1 is the front view of the utility model embodiment; Fig. 2 is a functional-block diagram of the present utility model.
Among the figure: the 1-shell; 2-unit's nameplate; The 3-signal wire joint; The 4-signal wire; 5-connecting pipe joint; The 6-connecting pipe; The 7-transparent cover plate.
Embodiment
Below in conjunction with the drawings and specific embodiments the utility model is done concrete introduction.
Embodiment
Fig. 1 is the front view of the utility model embodiment, and as shown in the figure, the simulated digital pressure display table of present embodiment comprises shell 1, LED digital indicator (not shown), transparent cover plate 7, signal wire joint 3, signal wire 4 and connecting pipe joint 5 and connecting pipe 6; In order to play simulated effect, shell 1 adopts cylindrical, or directly adopts the shell of existing pressure display table.Shell 1 is a hollow structure, is provided with opening in the front of shell 1, and transparent cover plate 7 is installed on opening, can have an X-rayed mounted component in the shell 1; LED digital indicator (not shown) is fixedly mounted in the hollow of shell 1, and reading district (being display window) faces transparent cover plate 7, the directly reading of display digit display; The unit's of being equipped with nameplate 2 on the shell 1 of transparent cover plate 7 one sides, unit are MPa (kPa) etc., and the unit of the pressure on the number of demonstration and unit nameplate has just constituted a complete reading.
As shown in Figure 2, digital indicator adopts two-wire system to carry out the signal transmission, characteristics are to be provided and the corresponding 4～20mA simulating signal of pressure range by process simulation software and DCS system under no medium situation, by change-over circuit, the driving circuit of digital indicator, thereby reach the purpose of imitating online digital pressure meter.Simply, intuitively, be convenient to demonstration, operation training.
The periphery of shell 1 is provided with connecting pipe joint 5, and connecting pipe 6 is fixedly mounted on the connecting pipe joint 5, and connecting pipe 6 is used for fixedlying connected with pipeline, is about to simulated digital tensimeter of the present utility model and is installed on the process equipments such as pipeline, reactor, tower, pump.
Also be provided with signal wire joint 3 on the periphery of shell 1, signal wire 4 is introduced in the shell 1 from the outside by signal wire joint 3, be connected with the LED digital indicator in being fixedly mounted on shell 1, give current signal of digital indicator, the processing of the circuit board in digital indicator, show a corresponding pressure value by digital indicator, because the display window of digital indicator faces transparent cover plate 7, therefore can be clear, the reading on the reading number display easily.
In order to save cost and easy to process, above-mentioned transparent cover plate 7 can adopt materials such as organic glass, plastic cement to make.
Present embodiment in use, connecting pipe 6 is fixedlyed connected with pipeline or equipment, signal wire 4 is connected with the DCS system, when real training, give electric signal of simulated digital tensimeter by simulation operations station (computing machine),, show corresponding reading through the processing of digital indicator, force value just can be read easily by unit on the bonding unit nameplate 2.
Just can carry out real training owing to when real training, need not to pass to actual medium, therefore highly beneficial for maintaining; And what the utility model adopted is digital wash, directly shows numerical value, need not to convert, and reading comes into plain view.The real training cost is lower, and is easy to operate, do not have the misgivings of leakage, has very high using value.
The foregoing description does not limit the utility model in any form, and all employings are equal to the technical scheme that mode obtained of replacement or equivalent transformation, all drop in the protection domain of the present utility model.
Claims (3)
1. a simulated digital tensimeter is characterized in that comprising meter case, LED digital indicator, signal wire joint and connecting pipe joint; Described shell is a hollow structure, and the front of shell has a rectangle window, is fixed with transparent cover plate on the window, on the shell of transparent cover plate one side the pressure unit nameplate is installed; The shell periphery is provided with and is used for the simulated digital pressure measuring instrument is fixedly mounted on connecting pipe joint on the equipment under test; The shell internal fixation is equipped with the LED digital indicator, and the display window of digital indicator is over against transparent cover plate; The shell periphery is provided with and is used for signal wire joint that external signal line is linked to each other with in the enclosure LED digital indicator of fixed installation.
2. simulated digital tensimeter as claimed in claim 1, the profile that it is characterized in that shell is cylindrical.
3. simulated digital tensimeter as claimed in claim 1 is characterized in that transparent cover plate is an organic glass.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206555542U CN202003523U (en) | 2010-12-13 | 2010-12-13 | Emulated digital pressure gauge |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010206555542U CN202003523U (en) | 2010-12-13 | 2010-12-13 | Emulated digital pressure gauge |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202003523U true CN202003523U (en) | 2011-10-05 |
Family
ID=44706256
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010206555542U Expired - Fee Related CN202003523U (en) | 2010-12-13 | 2010-12-13 | Emulated digital pressure gauge |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202003523U (en) |
-
2010
- 2010-12-13 CN CN2010206555542U patent/CN202003523U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20111005 Termination date: 20111213 |