CN208653700U - Pressure detecting instrument - Google Patents
Pressure detecting instrument Download PDFInfo
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- CN208653700U CN208653700U CN201821196245.6U CN201821196245U CN208653700U CN 208653700 U CN208653700 U CN 208653700U CN 201821196245 U CN201821196245 U CN 201821196245U CN 208653700 U CN208653700 U CN 208653700U
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- pressure
- detecting instrument
- diaphragm
- sensitive device
- pressure detecting
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Abstract
The utility model discloses a kind of pressure detecting instrument, including terminal box, pressure sensitive device, chromacoders, in which: the pressure sensitive device, can with tested piping connection, for obtaining the pressure of fluid in tested pipeline；The chromacoder, connects with the pressure sensitive device, and the pressure for obtaining the pressure sensitive device is converted to electric signal；The pressure sensitive device and the chromacoder are separately mounted in the terminal box；The pressure sensitive device has diaphragm, is provided with multiple blind holes on the diaphragm.The pressure detecting instrument, pressure can be kept accurately to detect under various operating conditions, operation safety it is reliable.The complicated ingredient for adapting to various drilling fluids, caters to the pressure change of frequent fluctuation, and security performance is high.
Description
Technical field
The utility model relates to pressure-detecting device more particularly to the pressure-detecting devices of fluid.
Background technique
Diaphragm is the main member of pressure detecting instrument, and pressure detecting instrument is the important component of pressure detecting instrument.It is pressing
Deformation can be generated with the variation of Fluid pressure after diaphragm and fluid contact in power detection process, diaphragm transmits pressure to
Pressure detecting instrument contact, which passes through a series of devices again and becomes signal, to be passed, and pressure detecting process is completed.Diaphragm deformation nature
It is sensitive whether, the mechanical strength safety of diaphragm whether is the key index for evaluating pressure detecting instrument performance.
In drilling process, in order to accurately grasp drilling process progress, technical staff needs to grasp drilling fluid in real time
Pressure data, and command according to real-time pressure parameter the operation process of subsequent well, therefore the accuracy of detection data, authenticity
It is very important with real-time.Situ of drilling well detection pressure mainly uses two ways at present: one is traditional pointer-type
Mechanical pressure gauge, data need to be read at the scene by visually；It is collected one is the universal pressure detecting instrument system of use
Data are shown by display screen.What universal pressure detecting instrument used currently on the market is all bellows-like membrane, which is in wave
Line shape, after experiencing drilling liquid pressure, bellows-like membrane is pressurized, and deformation occurs, and pressure is passed.Due to the type diaphragm
Ripple in one direction arrange, along ripple direction occur deformation it is larger, and lateral-cut direction occur deformation it is smaller, stress is very
Unevenly, the long diaphragm along ripple direction will generate fatigue damage, acceleration sensor failure.Especially when water in drilling fluid
When the solid component contents such as mud are higher, solids is be easy to cause to solidify between diaphragm ripple and influence detection accuracy.When maintenance
Diaphragm can accidentally be scratched, cause stress detector and scrap.These defects not only affect the real-time detection of cement slurry pressure,
Construction speed is influenced, also will increase entreprise cost.
Current corrugated pressure detecting instrument diaphragm mainly has following defect:
(1) pressure change of bellows-like membrane inadaptability in structure drilling fluid complexity: due to pressure in the drilling fluid course of work
Frequently variation, causes diaphragm frequently to open and shrink, stress is frequent along ripple direction, and due to corrugated unidirectional array, diaphragm exists
It is easy to cause bellows-like membrane mechanical damage when encountering pressure rise, causes unnecessary economic loss.
(2) there are security risks for existing pressure detecting instrument mounting means: screw thread is usually used and is directly screwed in equipment, separately
Without other safety prevention measures, badly causes tested pipeline to be easy to happen when strenuous vibration occurs once working environment and move back button now
As leaving security risk
(3) there are diaphragm cloggings: since the drilling fluid ingredient that different occasions use is different, various addition species
Different, when granular substance increases, after especially cement composition reaches a certain concentration, particle can be mixed in the ripple of diaphragm
Among, cause diaphragm setting and hardening phenomenon, strong influence detection accuracy.
Utility model content
In order to overcome the drawbacks of the prior art, the utility model people is by having carried out depth to existing drilling pressure detector
The research entered, the utility model proposes a kind of pressure detecting instruments.
A kind of pressure detecting instrument described in the utility model, including terminal box, pressure sensitive device, chromacoder,
Wherein:
The pressure sensitive device, can with tested piping connection, for obtaining the pressure of fluid in tested pipeline；
The chromacoder is connected with the pressure sensitive device, for obtaining the pressure sensitive device
The pressure taken is converted to electric signal；
The pressure sensitive device and the chromacoder are separately mounted in the terminal box；
The pressure sensitive device has diaphragm, is provided with multiple blind holes on the diaphragm.
Further, multiple blind holes matrix on the diaphragm is staggered.
Further, from the center of the diaphragm to edge, the spacing between the blind hole is gradually increased.
Further, which is characterized in that pressure sensitive device further includes sensor connector, is arranged in the sensor connector
Interior silicone oil hole is marked with silicone oil in the silicone oil hole, and the diaphragm is fixedly connected on the end of the sensor connector；
The silicone oil can be connected with the chromacoder；
The diaphragm passes to the chromacoder by the silicone oil because of the deformation that pressure generates.
Further, chromacoder includes sensor contact, data acquisition device, data transmission device, in which:
The sensor contact is electrically connected with the input terminal of the data acquisition device；
The output end of the data acquisition device is electrically connected with the data transmission device.
Further, the pressure detecting instrument further includes the plug being arranged at the top of the terminal box, the plug and institute
State data transmission device electrical connection.
Further, the terminal box is fixedly connected by clamp nut with tested pipeline.
Further, the sensor connector is tightly connected by sealing ring and tested pipeline.
Pressure detecting instrument described in the utility model, pressure can be kept accurately to detect under various operating conditions, operation safety it is reliable.
The complicated ingredient for adapting to various drilling fluids, caters to the pressure change of frequent fluctuation, and security performance is high.The pressure detecting instrument will be real
The accurate real-time acquisition of pressure parameter in existing drilling process, it is ensured that safety in production, to instruct subsequent production, tool of increasing economic efficiency
There is great meaning.
Detailed description of the invention
When considered in conjunction with the accompanying drawings, by referring to following detailed description, it can more completely more fully understand that this is practical new
Type and being easy learns many adjoint advantages, but attached drawing described herein is used to provide to the utility model into one
Step understands, constitutes a part of the utility model, and the illustrative embodiments and their description of the utility model are practical for explaining
It is novel, it does not constitute improper limits to the present invention, such as schemes wherein:
Fig. 1 is pressure detecting instrument structural schematic diagram described in the utility model；
Fig. 2 is the diaphragm structure schematic diagram of pressure detecting instrument described in the utility model；
Specific embodiment
With reference to the accompanying drawings of the specification, the specific embodiment of pressure detecting instrument described in the utility model is said
It is bright.
As shown in Fig.1 and Fig.2, pressure detecting instrument described in the present embodiment includes terminal box 8, pressure sensitive device, signal turn
Changing device, in which:
The pressure sensitive device can be connect, for obtaining the pressure of fluid in tested pipeline 1 with tested pipeline 1；Institute
Chromacoder is stated, is connected with the pressure sensitive device, the pressure for obtaining the pressure sensitive device turns
It is melted into electric signal；The pressure sensitive device and the chromacoder are separately mounted in the terminal box 8；The pressure
Sensing device has diaphragm 2, is provided with multiple blind holes 21 on the diaphragm 2.
The pressure sensitive device is including further including pressure detecting instrument connector 3, oil-through-hole 4, silicone oil 5；
The chromacoder includes sensor contact 6, plug 7, terminal box 8, data transmission device 9, data acquisition
Device 10.
Pressure detecting instrument connector 3 is mounted on tested pipeline 1, and 3 end of pressure detecting instrument connector is fixedly connected with diaphragm 2,
Diaphragm 2 is communicated with oil-through-hole 4, and silicone oil 5 is marked in oil-through-hole 4, and silicone oil 5 is communicated with sensor contact 6, sensor contact 6 with
Data acquisition device 10 is electrically connected, and data acquisition device 10 is electrically connected with data transmission device 9, data transmission device 9 and installation
Plug 7 at 8 top of terminal box is electrically connected, and plug 7 is fixed on 8 top of terminal box.
Terminal box 8 is fixed on pipeline 1 by clamp nut 11, sensor connector 3 by sealing ring 12 and pipeline 1 it
Between seal.
Diaphragm 2 is welded in the end of pressure detecting instrument connector 3, contacts with tested fluid measured；It is provided on diaphragm 2 multiple blind
Hole 21；Preferably, multiple blind holes 21 matrix on diaphragm 2 is staggered；It is highly preferred that from the center of the diaphragm 2 to edge,
Spacing between blind hole 21 is gradually increased.
When the matrix of detected fluid and 3 lower part of sensor connector in tested pipeline 1 is layouted alternating expression arrangement blind hole diaphragm 2
After contact, due to compression homogeneous deformation occurs for diaphragm 2, with the continuous increase of pressure, matrix layout alternating expression arrangement blind hole
The deformation of diaphragm 2 also constantly increases, and gives the silicone oil 5 for being enclosed within oil-through-hole 4 with same pressure along stress surface, pushes silicone oil 5
Pressure to sensor contact 6, collected electric signal is passed to data by data acquisition device 10 by sensor contact 6
Transmitting device 9, then transferred out by data transmission device 9 by 7 signals detected of plug being mounted in terminal box 8,
Complete pressure detecting process.
Blind hole 21 is distributed on diaphragm 2 in the pressure detecting instrument, since blind hole 21 is that matrix is staggeredly layouted, when diaphragm 2 by
After power, pressure will be uniformly distributed, it is relatively uniform to generate deformation, therefore it is good to transmit pressure dynamics, will not occur because of film
The unidirectional local pressure transmitting signals inaccuracy of piece, alternating expression rectangular arrangement diaphragm are quick on the draw, and transmitting signal is more acurrate.
And the pressure detecting instrument, security reliability is higher, and using new structural design, all components are all protected
In one terminal box, measured tube road is fastened on by clamp nut, mechanical strength significantly improves, and high voltage performance is stronger, more
Add safe and reliable.
The pressure detecting instrument, Maintenance and Repair are more convenient, and matrix is layouted the blind hole diaphragm that is staggered, surfacing light
It is sliding, rinsed with clear water, it is resistance to artificially scratch it is more excellent.
As above, the embodiments of the present invention are explained in detail, it is clear that as long as essentially without this reality is detached from
With novel utility model point and effect, obvious variations to those skilled in the art, also it is integrally incorporated in
Within the protection scope of the utility model.
Claims (8)
1. a kind of pressure detecting instrument, which is characterized in that including terminal box (8), pressure sensitive device, chromacoder, in which:
The pressure sensitive device can be connect, for obtaining the pressure of tested pipeline (1) interior fluid with tested pipeline (1)；
The chromacoder is connected with the pressure sensitive device, for obtain the pressure sensitive device
Pressure is converted to electric signal；
The pressure sensitive device and the chromacoder are separately mounted in the terminal box (8)；
The pressure sensitive device has diaphragm (2), is provided with multiple blind holes (21) on the diaphragm (2).
2. pressure detecting instrument according to claim 1, which is characterized in that multiple blind holes (21) are in the diaphragm (2)
Upper matrix is staggered.
3. pressure detecting instrument according to claim 2, which is characterized in that described from the center of the diaphragm (2) to edge
Spacing between blind hole (21) is gradually increased.
4. pressure detecting instrument according to claim 1 to 3, which is characterized in that pressure sensitive device further includes passing
Sensor connector (3), the silicone oil hole (4) being arranged in the sensor connector (3), the silicone oil hole (4) is interior to be marked with silicone oil (5),
The diaphragm (2) is fixedly connected on the end of the sensor connector (3)；
The silicone oil (5) can connect with the chromacoder；
The diaphragm (2) passes to the chromacoder by the silicone oil (5) because of the deformation that pressure generates.
5. pressure detecting instrument according to claim 4, which is characterized in that chromacoder includes sensor contact (6),
Data acquisition device (10), data transmission device (9), in which:
The sensor contact (6) is electrically connected with the input terminal of the data acquisition device (10)；
The output end of the data acquisition device (10) is electrically connected with the data transmission device (9).
6. pressure detecting instrument according to claim 5, which is characterized in that the pressure detecting instrument further includes being arranged described
Plug (7) at the top of terminal box (8), the plug (7) are electrically connected with the data transmission device (9).
7. pressure detecting instrument according to claim 6, which is characterized in that the terminal box (8) passes through clamp nut (11)
It is fixedly connected with tested pipeline (1).
8. pressure detecting instrument according to claim 7, which is characterized in that the sensor connector (3) passes through sealing ring
(12) it is tightly connected with tested pipeline (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196245.6U CN208653700U (en) | 2018-07-26 | 2018-07-26 | Pressure detecting instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821196245.6U CN208653700U (en) | 2018-07-26 | 2018-07-26 | Pressure detecting instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208653700U true CN208653700U (en) | 2019-03-26 |
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ID=65786378
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821196245.6U Active CN208653700U (en) | 2018-07-26 | 2018-07-26 | Pressure detecting instrument |
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| CN (1) | CN208653700U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760140A (en) * | 2018-07-26 | 2018-11-06 | 沈阳白云机械有限公司 | Pressure detecting instrument |
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2018
- 2018-07-26 CN CN201821196245.6U patent/CN208653700U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108760140A (en) * | 2018-07-26 | 2018-11-06 | 沈阳白云机械有限公司 | Pressure detecting instrument |
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