CN207366127U - A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device - Google Patents
A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device Download PDFInfo
- Publication number
- CN207366127U CN207366127U CN201721025641.8U CN201721025641U CN207366127U CN 207366127 U CN207366127 U CN 207366127U CN 201721025641 U CN201721025641 U CN 201721025641U CN 207366127 U CN207366127 U CN 207366127U
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- China
- Prior art keywords
- pressure difference
- processor
- piston
- conveyance conduit
- pressure
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- Measuring Fluid Pressure (AREA)
Abstract
It the utility model is related to a kind of Photosensitive fluid pressure and bidirectional pressure difference detection device, including several parts such as alarm, display, processor, light sensor, piston, transparent pipe, spring.When detecting fluid pressure, which is connected with testing liquid, and the other end is exposed in air, fluid pressure drives the piston motion to cause light to change, the light sensor gives optical signal transmission to the processor, and processor converses pressure value, and output in real time on the display；The alarm exceedes threshold value alarm in pressure.When detecting liquid bidirectional pressure difference, the device both ends are connected with testing liquid respectively, fluid pressure differential drives the piston motion to cause light to change, the light sensor gives optical signal transmission to the processor, processor converses pressure difference, and output, the alarm exceed threshold value alarm in pressure difference in real time on the display.The apparatus structure is simple, cost is low, can detect fluid pressure and bidirectional pressure difference.
Description
Technical field
Fluid pressure and pressure differential detection field are the utility model is related to, is specially a kind of Photosensitive fluid pressure and Bidirectional pressure
Poor detection device.
Background technology
Pressure and pressure test device are widely used in liquid level inspection in pressure differential detection and tank body before and after Supervisory control, filter
Field, the devices that can detect fluid pressure and pressure difference at this stage such as survey mainly have pressure sensor and mechanical type pressing difference switch.
Although pressure sensor can accurately detect pressure value, the pressure of a certain site fluid can only be detected, detects different parts liquid
At least need to use two pressure sensors during the pressure difference of body, and it is of high cost, manufacturing process is complicated.Mechanical type pressing difference switch into
This is low, simple in structure, but can only be detected for a certain particular pressure differential threshold value, it is impossible to measures pressure difference, and there is detection
The deficiencies of precision is low, poor sensitivity, short life.
Utility model content
The purpose of the utility model is to overcome the deficiencies in the prior art, there is provided a kind of fluid pressure and pressure test device,
Make up that existing pressure sensor is of high cost, manufacturing process is complicated, cannot detect pressure difference and pressure difference switch accuracy of detection is low, sensitive
Degree is poor, cannot export the deficiencies of pressure difference.
A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device, it is characterised in that including transparent pipe；In transparent pipe
First gear button and second gear button；Piston in the middle part of transparent pipe；The first spring being fixed between first gear button and piston, is fixed on
Second spring between second gear button and piston；It is fixed on the light sensor of transparent pipe periphery；It is installed on light sensor table
The photosensitive resistance sensor in face；Processor receives and optical signal of the processing from light sensor；The display being connected with processor
Device；The alarm being connected with processor；First spring is identical with stiffness factor with the length of second spring；The piston is
Solid black piston；The first conveyance conduit and the second conveyance conduit are further included, sets and is used for and institute at the both ends of the transparent pipe
State the first threeway and the second threeway that the first conveyance conduit is connected with the second conveyance conduit end.
Further, when the fluid pressure in first conveyance conduit and the second conveyance conduit is equal, the piston two
Hold stress identical, in the middle part of the transparent pipe；There are pressure difference for liquid in first conveyance conduit and the second conveyance conduit
When, the change that movement causes light occurs for the piston, and the light sensor detects the light caused by the piston motion
Change, and the optical signal is sent to the processor.
Further, optical signal is scaled pressure difference signal according to internal processes by the processor, and in the display
Upper output pressure difference in real time；And threshold pressure differential is equipped with the processor, it is described when the pressure difference detected exceedes the threshold value
Alarm is alarmed.
Compared with prior art, the beneficial effects of the utility model are：A kind of Photosensitive fluid pressure and bidirectional pressure difference inspection
Survey device can detect in real time with the pressure value of output liquid and Bidirectional pressure difference, and exceed the feelings of respective threshold in pressure or pressure difference
Alarm under condition, to avoid accident occurs；The device has the characteristics that simple in structure, easy to manufacture, cheap, precise control.
Brief description of the drawings
Fig. 1 is a kind of Photosensitive fluid pressure described in the utility model and bidirectional pressure difference detection device schematic diagram.
In figure：Display (1), alarm (2), processor (3), light sensor (4), photosensitive resistance sensor (5), the
One gear button (6), transparent pipe (7), the first spring (8), piston (9), second spring (10), second gear button (11), the first delivery pipe
Road (12), the first threeway (13), the second conveyance conduit (14), the second threeway (15).
Embodiment
A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device, it is characterised in that including transparent pipe (7)；Transparent pipe
(7) first gear button (6) and second gear button (11) in；Piston (9) in the middle part of transparent pipe (7)；It is fixed on first gear button (6) and lives
Fill in the first spring (8) between (9), the second spring (10) being fixed between second gear button (11) and piston (9)；It is fixed on
The light sensor (4) of transparent pipe (7) periphery；It is installed on the photosensitive resistance sensor (5) on light sensor (4) surface；Processing
Device (3) receives and optical signal of the processing from light sensor (4)；The display (1) being connected with processor (3)；With processor
(3) alarm (2) of connection；First spring (8) is identical with stiffness factor with the length of second spring (10)；The work
It is solid black piston to fill in (9)；The first conveyance conduit (12) and the second conveyance conduit (14) are further included, in the transparent pipe (7)
Both ends set and be used for the first threeway for being connected with first conveyance conduit (12) and second conveyance conduit (14) end
(13) and the second threeway (15).
Further, when the fluid pressure in first conveyance conduit (12) and the second conveyance conduit (14) is equal, institute
It is identical to state piston (9) both ends stress, in the middle part of the transparent pipe (7)；First conveyance conduit (12) and the second delivery pipe
There are during pressure difference, the change that movement causes light, the light sensor (4) occur liquid in road (14) for the piston (9)
The caused light change of the piston (9) movement is detected, and the optical signal is sent to the processor (3).
Further, optical signal is scaled pressure difference signal, and show described by the processor (3) according to internal processes
Show and export pressure difference on device (1) in real time；And threshold pressure differential is equipped with the processor (3), exceeding in the pressure difference detected should
During threshold value, the alarm (2) is alarmed.
A kind of Photosensitive fluid pressure described in the utility model and bidirectional pressure difference detection device detect liquid bidirectional pressure difference
Operation principle：When the fluid pressure in the first conveyance conduit and the second conveyance conduit is equal, pressure of two parts liquid to piston
Power is equal, and piston is in the medium position of transparent pipe.When the fluid pressure in the first conveyance conduit is more than in the second conveyance conduit
Fluid pressure when, left side liquid is more than right side to the pressure of piston, and piston moves right, compression right side spring, light sensing
The optical signal transmission that piston motion is triggered is utilized internal processes, converts optical signals to pressure difference by device to processor, processor
Signal and over the display output in real time；Processor is internally provided with threshold pressure differential, and can be changed according to the requirement of varying environment
The threshold value, abnormal operating state is considered when the pressure difference detected exceedes the threshold value, alarm equipment alarm, avoids that thing occurs
Therefore.When the fluid pressure in the first conveyance conduit be less than the second conveyance conduit in fluid pressure when, detection with deterministic process with
The above process is consistent.When the fluid pressure in the conveyance conduit of both sides is again equal, the stress at piston both ends is equal again, is pressed
The spring of contracting is unfolded, and produces thrust, piston is returned to centre position.
Claims (3)
1. a kind of Photosensitive fluid pressure and bidirectional pressure difference detection device, it is characterised in that including transparent pipe (7)；Transparent pipe (7)
Interior first gear button (6) and second gear button (11)；Piston (9) in the middle part of transparent pipe (7)；It is fixed on first gear button (6) and piston
(9) the first spring (8) between, the second spring (10) being fixed between second gear button (11) and piston (9)；It is fixed on transparent
Manage the light sensor (4) of (7) periphery；It is installed on the photosensitive resistance sensor (5) on light sensor (4) surface；Processor (3)
Receive and handle the optical signal from light sensor (4)；The display (1) being connected with processor (3)；With processor (3) even
The alarm (2) connect；
First spring (8) is identical with stiffness factor with the length of second spring (10)；
The piston (9) is solid black piston；
Further include the first conveyance conduit (12) and the second conveyance conduit (14), the transparent pipe (7) both ends set be used for
The first threeway (13) and the second threeway that first conveyance conduit (12) connects with the second conveyance conduit (14) end
(15)。
2. a kind of Photosensitive fluid pressure according to claim 1 and bidirectional pressure difference detection device detection liquid bidirectional pressure difference
When, it is characterised in that when the fluid pressure in first conveyance conduit (12) and the second conveyance conduit (14) is equal, the work
It is identical to fill in (9) both ends stress, in the middle part of the transparent pipe (7)；First conveyance conduit (12) and the second conveyance conduit
(14) there are during pressure difference, the change that movement causes light, light sensor (4) inspection occur the liquid in for the piston (9)
The caused light change of the piston (9) movement is surveyed, and the optical signal is sent to the processor (3).
3. a kind of Photosensitive fluid pressure according to claim 1 and bidirectional pressure difference detection device detection liquid bidirectional pressure difference
When, it is characterised in that optical signal is scaled pressure difference signal according to internal processes by the processor (3), and in the display
(1) pressure difference is exported in real time；And threshold pressure differential is equipped with the processor (3), exceed the threshold value in the pressure difference detected
When, the alarm (2) is alarmed.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721025641.8U CN207366127U (en) | 2017-08-16 | 2017-08-16 | A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721025641.8U CN207366127U (en) | 2017-08-16 | 2017-08-16 | A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207366127U true CN207366127U (en) | 2018-05-15 |
Family
ID=62422183
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201721025641.8U Expired - Fee Related CN207366127U (en) | 2017-08-16 | 2017-08-16 | A kind of Photosensitive fluid pressure and bidirectional pressure difference detection device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207366127U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840089A (en) * | 2020-08-05 | 2020-10-30 | 南京法迈特科技发展有限公司 | Monitoring device for nutrition conveying pipe blocking |
-
2017
- 2017-08-16 CN CN201721025641.8U patent/CN207366127U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111840089A (en) * | 2020-08-05 | 2020-10-30 | 南京法迈特科技发展有限公司 | Monitoring device for nutrition conveying pipe blocking |
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180515 Termination date: 20190816 |
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| CF01 | Termination of patent right due to non-payment of annual fee |