CN203824702U - Calibration device for pressure transmitter - Google Patents
Calibration device for pressure transmitter Download PDFInfo
- Publication number
- CN203824702U CN203824702U CN201420203675.1U CN201420203675U CN203824702U CN 203824702 U CN203824702 U CN 203824702U CN 201420203675 U CN201420203675 U CN 201420203675U CN 203824702 U CN203824702 U CN 203824702U
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- China
- Prior art keywords
- pressure
- flexible tube
- tube section
- port
- pressure unit
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Abstract
The utility model discloses a calibration device for a pressure transmitter. The calibration device comprises a pressure generating pump for providing a pressure source. The pressure generating pump is connected with a first port of a tee pipe through a first soft pipe section. A second port of the tee pipe is connected with a second soft pipe section which is used for connecting with a pressure input port of the pressure transmitter to be calibrated. A third port of the tee port is connected to a pressure measuring device through a third soft pipe section. The pressure measuring device is a scaled U-shaped pipe. The U-shaped pipe is filled with a reagent for displaying a sensed pressure value. According to the utility model, the pressure generating pump is connected with the tee pipe through the soft pipe, and the tee pipe is connected with the pressure input port of the pressure transmitter to be calibrated and the U-shaped pipe for measuring and displaying the pressure value, so that, by comparing the input pressure value measured by the U-shaped pipe with the input pressure value detected by the pressure transmitter, the detection precision of the pressure transmitter is calibrated. The calibration device provided by the utility model meets the requirements on in-site calibration.
Description
Technical field
The utility model relates to pressure unit technical field, especially, relates to a kind of pressure unit calibration equipment.
Background technology
Pressure unit is a kind of instrument that pressure variety is converted to standard output signals.Existing pressure unit has generally all passed through check before dispatching from the factory, and is then directly installed on measuring circuit, and giving tacit consent to it is accurately.But the accuracy that may affect in transit transmitter, causes measuring error, very accurate if client requires measurement result, that just must be taken special detection department and go calibration.And pressure unit is taken to special detection department, calibrate test, waste time and energy, inefficiency, thus need a kind of being convenient for carrying of exploitation badly, and can carry out to pressure unit the calibration equipment of field-checking.
Utility model content
The utility model object is to provide a kind of pressure unit calibration equipment, carries out the technical matters of field-checking to solve existing pressure unit inconvenience.
For achieving the above object, the technical solution adopted in the utility model is as follows:
A pressure unit calibration equipment, comprises that, for the pressuring pump of pressure source is provided, pressuring pump is connected with the first port of three-way pipe through the first flexible tube section;
The second port of three-way pipe is connected with the second flexible tube section, and the second flexible tube section presses mouth to be connected for adopting of the pressure unit with to be verified;
The 3rd port of three-way pipe is connected with device for pressure measurement through the 3rd flexible tube section, and device for pressure measurement is the U-shaped pipe with scale, is injected with for showing the reagent of the force value sensing in U-shaped pipe.
Further, the analog output port of pressure unit to be verified is connected to for showing the controller of the input pressure value that it collects, and controller is through the display unit force value that output collects in real time.
Further, controller is PLC controller, and the analog input end of PLC controller connects the analog output port of pressure unit to be verified, and PLC controller is provided with display unit, for the force value that output collects in real time.
Further, pressuring pump comprises pressure device, and pressure device is connected with the pressure display table for detection of the output pressure value of pressure device, and the delivery outlet of pressure device is the first port to three-way pipe through the first flexible tube section conducting.
Further, pressuring pump is hand-held pressuring pump.
Further, the first flexible tube section, the second flexible tube section and the 3rd flexible tube section all adopt rubber to make.
Further, the reagent of injection U-shaped pipe is water.
Further, three-way pipe is stainless-steel tube.
The utlity model has following beneficial effect:
The utility model pressure unit calibration equipment, by by pressuring pump through flexible pipe connecting tee pipe, and three-way pipe is communicated with respectively that adopting of pressure unit to be verified pressed mouthful and for measuring and show the U-shaped pipe of force value, the input pressure value that the input pressure value of measuring by comparison U-shaped pipe and pressure unit detect, thereby realize the verification to the accuracy of detection of pressure unit, met the needs that pressure unit carried out to field-checking.
Except object described above, feature and advantage, the utility model also has other object, feature and advantage.Below with reference to figure, the utility model is described in further detail.
Accompanying drawing explanation
The accompanying drawing that forms the application's a part is used to provide further understanding of the present utility model, and schematic description and description of the present utility model is used for explaining the utility model, does not form improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the structural representation of calibration equipment for the utility model preferred embodiment pressure unit.
Description of reference numerals:
10, pressuring pump; 11, pressure display table; 12, pressure device; 21, the first flexible tube section; 22, the second flexible tube section; 23, the 3rd flexible tube section; 30, three-way pipe; 40, U-shaped pipe; 50, pressure unit; 51, adopt and press mouth; 52, analog output port.
Embodiment
Below in conjunction with accompanying drawing, embodiment of the present utility model is elaborated, but the multitude of different ways that the utility model can be defined by the claims and cover is implemented.
With reference to Fig. 1, preferred embodiment of the present utility model provides a kind of pressure unit calibration equipment, comprises that pressuring pump 10 is connected with the first port of three-way pipe 30 through the first flexible tube section 21 for the pressuring pump 10 of pressure source is provided; The second port of three-way pipe 30 is connected with the second flexible tube section 22, the second flexible tube sections 22 and presses mouth 51 to be connected for adopting of the pressure unit 50 with to be verified; The 3rd port of three-way pipe 30 is connected with device for pressure measurement through the 3rd flexible tube section 23, and device for pressure measurement is the U-shaped pipe 40 with scale, is injected with for showing the reagent of the force value sensing in U-shaped pipe 40.
During work, the pressure of pressuring pump 10 output, road second flexible tube section 22, adopts and presses mouthfuls 51 to enter pressure unit 50, and another Lu Jing tri-flexible tube sections 23 are sent in U-shaped pipe 40.In the present embodiment, the analog output port 52 of pressure unit 50 is connected to for showing the controller of the input pressure value that it collects, controller is through the display unit force value that output collects in real time, in U-shaped pipe 40, be injected with the water of half scale, and U-shaped Guan Zhongwu bubble, like this, by reading the difference in height of U-shaped pipe 40 interior liquid levels, the force value sensing with regard to readable taking-up.The present embodiment passes through pressuring pump 10 through flexible pipe connecting tee pipe 30, and three-way pipe 30 is communicated with respectively adopting of pressure unit to be verified 50 and presses mouthfuls 51 and for measuring and show the U-shaped pipe 40 of force value, the input pressure value that the input pressure value of measuring by comparison U-shaped pipe 40 and pressure unit 50 detect, thereby realize the verification to the accuracy of detection of pressure unit 50, met the needs that pressure unit 50 carried out to field-checking.
In other embodiments, the analog output port 52 of pressure unit 50 to be verified is connected with the analog input end of PLC controller, and PLC controller is provided with display unit, for the force value that output collects in real time.
Preferably, pressuring pump 10 comprises pressure device 12, and pressure device 12 is connected with the pressure display table 11 for detection of the output pressure value of pressure device 12, and this pressure display table 11 is the auxiliary pressure-measuring device that shows force value.The delivery outlet of pressure device 12 is the first port to three-way pipe 30 through the first flexible tube section 21 conductings.Gas leakage while being connected with interface for fear of flexible pipe, according to connecting after equipment shown in Fig. 1, extruding pressuring pump 10, allow the first flexible tube section 21, the 3rd flexible tube section 23 keep certain pressure, watch the tensimeter data of pressure display table 11 or the water-head of U-shaped pipe 40 whether to change, if there is explanation gas leakage, it is good until after air tight, just can start verification pressure unit to check.
In order to guarantee pliability and the durability of flexible pipe, in the present embodiment, the first flexible tube section 21, the second flexible tube section 22 and the 3rd flexible tube section 23 all adopt rubber to make.
Preferably, the pressuring pump 10 in the present embodiment is selected hand-held pressuring pump, to be convenient for carrying, meets the demand of field-checking.
Preferably, three-way pipe 30 is for adopting stainless-steel tube, three mutual conductings of port of three-way pipe, before verification starts, connect all devices as shown in Figure 1, extruding hand-held pressuring pump, allow in all flexible pipes and keep certain pressure, watch the tensimeter data of pressure display table 11 or the water-head of U-shaped pipe 40 whether to change, if there is explanation gas leakage, it is good until after air tight, just can start verification pressure unit to check.
The foregoing is only preferred embodiment of the present utility model, be not limited to the utility model, for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection domain of the present utility model.
Claims (8)
1. a pressure unit calibration equipment, is characterized in that, comprises the pressuring pump (10) for pressure source is provided, and described pressuring pump (10) is connected with the first port of three-way pipe (30) through the first flexible tube section (21);
The second port of described three-way pipe (30) is connected with the second flexible tube section (22), and described the second flexible tube section (22) presses mouthful (51) to be connected for adopting of the pressure unit with to be verified (50);
The 3rd port of described three-way pipe (30) is connected with device for pressure measurement through the 3rd flexible tube section (23), described device for pressure measurement is the U-shaped pipe (40) with scale, in described U-shaped pipe (40), is injected with for showing the reagent of the force value sensing.
2. pressure unit calibration equipment according to claim 1, is characterized in that,
The analog output port (52) of described pressure unit to be verified (50) is connected to for showing the controller of the input pressure value that it collects, and described controller is through the display unit force value that output collects in real time.
3. pressure unit calibration equipment according to claim 2, is characterized in that,
Described controller is PLC controller, the analog input end of described PLC controller connects the analog output port (52) of described pressure unit to be verified (50), described PLC controller is provided with display unit, for the force value that output collects in real time.
4. according to the pressure unit calibration equipment described in claim 2 or 3, it is characterized in that,
Described pressuring pump (10) comprises pressure device (12), described pressure device (12) is connected with the pressure display table (11) for detection of the output pressure value of described pressure device (12), and the delivery outlet of described pressure device (12) is the first port to described three-way pipe (30) through described the first flexible tube section (21) conducting.
5. pressure unit calibration equipment according to claim 4, is characterized in that,
Described pressuring pump (10) is hand-held pressuring pump.
6. pressure unit calibration equipment according to claim 1, is characterized in that,
Described the first flexible tube section (21), the second flexible tube section (22) and the 3rd flexible tube section (23) all adopt rubber to make.
7. pressure unit calibration equipment according to claim 1, is characterized in that,
The described reagent that injects described U-shaped pipe (40) is water.
8. pressure unit calibration equipment according to claim 1, is characterized in that,
Described three-way pipe (30) is stainless-steel tube.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203675.1U CN203824702U (en) | 2014-04-24 | 2014-04-24 | Calibration device for pressure transmitter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420203675.1U CN203824702U (en) | 2014-04-24 | 2014-04-24 | Calibration device for pressure transmitter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203824702U true CN203824702U (en) | 2014-09-10 |
Family
ID=51480187
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420203675.1U Expired - Fee Related CN203824702U (en) | 2014-04-24 | 2014-04-24 | Calibration device for pressure transmitter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203824702U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568309A (en) * | 2014-12-23 | 2015-04-29 | 长春轨道客车股份有限公司 | Function testing method of air conditioner pressure wave sensor |
| CN105222953A (en) * | 2015-11-05 | 2016-01-06 | 中环天仪股份有限公司 | Once demarcate multiple stage differential pressure transmitter calibration system clamp device |
| CN107202690A (en) * | 2017-07-25 | 2017-09-26 | 中建安装工程有限公司 | A kind of breather valve on-site calibration device and its application method |
| CN110361134A (en) * | 2019-07-19 | 2019-10-22 | 湖南省计量检测研究院 | A kind of modification method of tilting micromanometer deviation |
-
2014
- 2014-04-24 CN CN201420203675.1U patent/CN203824702U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104568309A (en) * | 2014-12-23 | 2015-04-29 | 长春轨道客车股份有限公司 | Function testing method of air conditioner pressure wave sensor |
| CN105222953A (en) * | 2015-11-05 | 2016-01-06 | 中环天仪股份有限公司 | Once demarcate multiple stage differential pressure transmitter calibration system clamp device |
| CN107202690A (en) * | 2017-07-25 | 2017-09-26 | 中建安装工程有限公司 | A kind of breather valve on-site calibration device and its application method |
| CN110361134A (en) * | 2019-07-19 | 2019-10-22 | 湖南省计量检测研究院 | A kind of modification method of tilting micromanometer deviation |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20140910 Termination date: 20180424 |