CN106441697B - A kind of loine pressure detection system and detection method - Google Patents
A kind of loine pressure detection system and detection method Download PDFInfo
- Publication number
- CN106441697B CN106441697B CN201610871489.9A CN201610871489A CN106441697B CN 106441697 B CN106441697 B CN 106441697B CN 201610871489 A CN201610871489 A CN 201610871489A CN 106441697 B CN106441697 B CN 106441697B
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- pressure
- pipe joint
- pedestal
- detection system
- loine
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L11/00—Measuring steady or quasi-steady pressure of a fluid or a fluent solid material by means not provided for in group G01L7/00 or G01L9/00
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L19/00—Details of, or accessories for, apparatus for measuring steady or quasi-steady pressure of a fluent medium insofar as such details or accessories are not special to particular types of pressure gauges
- G01L19/0007—Fluidic connecting means
- G01L19/003—Fluidic connecting means using a detachable interface or adapter between the process medium and the pressure gauge
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- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The present invention provides a kind of loine pressure detection system and detection method, the loine pressure detection system includes pressure acquisition device, pressure acquisition device includes pedestal (3), pressure sensor (5) and pipe joint (14), atmospheric pressure cavity (31) are set inside pedestal (3), pressure sensor (5), pipe joint (14) are respectively and fixedly installed on pedestal (3), pipe joint (14) is communicated with atmospheric pressure cavity (31), and pressure sensor (5) carries out the induction of pressure signal, acquisition to atmospheric pressure cavity (31).It when carrying out channel interior pressure detecting, is tightly connected by being formed between pipe joint and pipeline to be measured, then the pressure in atmospheric pressure cavity is incuded by pressure sensor, is acquired, channel interior pressure can be easily detected；After the completion of pressure detecting, pipeline to be measured is directly pulled out, is particularly suitable for consumptive material is separated or acquired with blood constituent and matches, there is outstanding advantages of easy to operate, safe.
Description
Technical field
The present invention relates to pipeline pressure monitor technical fields, more particularly, to applied in the pipeline with air filtering plug
A kind of loine pressure detection system and detection method.
Background technique
Blood used in clinic in Modern Medical Field using very extensive, the acquisition of blood, separation for blood constituent separation or
Acquisition consumptive material has stringent applicable requirement.For example, blood enters after vein blood vessel outflow in blood collection procedure
In blood collection pipeline, and mixed with the blood anticoagulant in blood collection pipeline；In the case where the extruding of peristaltic pump pushes, blood
Acquisition pipeline constantly extracts blood out of vein blood vessel.In order to successfully collect more blood, held in peristaltic pump
In the continuous course of work, it is necessary to be detected to the air pressure in blood collection pipeline；And what peristaltic pump meeting basis detected
Pressure adjusts revolving speed, generates uncomfortable to prevent hemostasis person because the pressure gap in body blood pressure and blood collection pipeline is excessive.
In blood constituent separation or collection process, in used blood constituent separation or acquisition pipeline consumptive material usually
It is provided with air filtering plug.For this pipe-line system with air filtering plug, in the work course in pipeline just
When pressure or negative pressure are detected, it is necessary first to which whether the air filtering plug in signal piping system is installed, then could be to pipeline
Internal air pressure is measured；Otherwise, it cannot be guaranteed that in pipeline pressure measurements accuracy, reliability, to influence
The safety reliability of blood constituent separation or acquisition.
Summary of the invention
The technical problem to be solved by the present invention is in view of the problems of the existing technology, providing a kind of loine pressure detection
System and detection method can detect channel interior pressure, and easy to operate, safety.
The technical problem to be solved in the present invention is realized using following technical scheme: a kind of loine pressure detection system, packet
Pressure acquisition device is included, the pressure acquisition device includes pedestal, pressure sensor and pipe joint, and gas is arranged in base interior
Chamber is pressed, the pressure sensor, pipe joint are respectively and fixedly installed on pedestal, and the pipe joint is communicated with atmospheric pressure cavity, institute
The pressure sensor stated carries out the induction of pressure signal, acquisition to atmospheric pressure cavity.
Preferably, the pressure acquisition device further includes resilient sleeve and protective case, opens up pipe interface on the protective sleeve,
The resilient sleeve is connect with pedestal, protective case respectively, and the pipe joint is located in protective case inner cavity；The protective case relative to
Pipe joint movement, and resetted under the resilient force of resilient sleeve.
Preferably, further include guide post, motion block and fixed block, movement chamber is set in base interior, in movement chamber open end
The fixed block being fixedly connected with pedestal is set；The guide post opposite end is fixedly connected with pedestal, pipe joint respectively, and is managed
Pipeline connector, guide post form airflow channel between atmospheric pressure cavity, and the motion block is located in movement chamber and forms sliding sleeve with guide post
Binding structure is fixedly connected between the resilient sleeve and motion block.
Preferably, it is fixedly connected with guide rod on the fixed block, forms sliding sleeve between the guide rod and motion block
Binding structure.
Preferably, the pressure acquisition device further includes the first plug, forms spiral shell between first plug and pedestal
Line is flexibly connected, and the first plug seals atmospheric pressure cavity outlet.
Preferably, the pressure sensor is sequentially connected electrically with A/D converter, control device, display device, the control
Device processed is single-chip microcontroller or PLC, and the display device is for showing pipeline pressure detection value.
It preferably, further include warning device, the warning device is electrically connected with control device.
Preferably, the warning device is buzzer or alarm lamp.
It preferably, further include optoelectronic switch, the optoelectronic switch is mounted in the movement chamber in pedestal, and and control device
Electrical connection.
A kind of loine pressure detection method, is carried out using loine pressure detection system as described above, and the pipeline connects
Head is tightly connected with pipeline to be measured, makes to form fluid channel between pipeline and atmospheric pressure cavity to be measured, by pressure sensor to air pressure
Chamber carries out the induction of pressure signal, acquisition.
Compared with prior art, the beneficial effects of the present invention are: by the way that pressure sensor and pipe are fixedly mounted on the base
Pipeline connector, and pipe joint is communicated with the atmospheric pressure cavity in pedestal, when carrying out channel interior pressure detecting, by pipeline to be measured and pipe
Pipeline connector is tightly connected, and is incuded by pressure sensor to the pressure in atmospheric pressure cavity, is acquired, can be readily derived pipeline
Internal pressure；After the completion of pressure detecting, pipeline to be measured is directly pulled out, therefore, is operated not only simple but also safe.Especially
It is suitable for consumptive material is separated or acquired with blood constituent to match, for detecting the air pressure inside transducer potector.
Detailed description of the invention
Fig. 1 is a kind of structural map of loine pressure detection system of the present invention.
Fig. 2 is the structural map (cross-sectional view) of the loine pressure acquisition device in Fig. 1.
Fig. 3 is the structural map of the circuit board assemblies in Fig. 2.
Component token name claims in figure: the first plug of 1-, 2- sealing element, 3- pedestal, the second plug of 4-, 5- pressure sensor,
6- seal washer, 7- circuit board, 8- optoelectronic switch, 9- guide post, 10- motion block, 11- fixed block, 12- resilient sleeve, 13- protection
Set, 14- pipe joint, 15- guide rod, 16- attachment screw, 31- atmospheric pressure cavity, 32- move chamber, 131- pipe interface.
Specific embodiment
In order to make the objectives, technical solutions, and advantages of the present invention clearer, with reference to the accompanying drawing and specific implementation
The present invention is described in detail for example.It should be appreciated that the specific embodiments described herein are merely illustrative of the present invention, not
For limiting the present invention.
Loine pressure detection system as shown in Figure 1 mainly includes pressure acquisition device, the knot of the pressure acquisition device
Structure is as shown in Fig. 2, mainly include pedestal 3, pressure sensor 5 and pipe joint 14, setting atmospheric pressure cavity 31 and pressure inside pedestal 3
Force snesor installation cavity, the pressure sensor 5 are fixedly mounted on pedestal 3 and are located inside pressure sensor installation cavity,
The second plug 4 is set in the outlet end of pressure sensor installation cavity, forms sealing structure between second plug 4 and pedestal 3,
Pressure sensor installation cavity is set to form a seal chamber.To improve the sealing reliability between pressure sensor 5 and atmospheric pressure cavity 31,
Seal washer 6 can be set between pressure sensor 5 and atmospheric pressure cavity 31, at this point, the pressure sensor 5 is located at the second plug
Between 4 and seal washer 6.The pipe joint 14 is fixedly mounted on pedestal 3, and pipe joint 14 and 31 phase of atmospheric pressure cavity
It is logical, induction, the acquisition of pressure signal can be carried out to atmospheric pressure cavity 31 by pressure sensor 5.
When carrying out loine pressure detection, pipeline to be measured and pipe joint 14 are sealedly connected, make pipeline to be measured with
Fluid channel is formed between atmospheric pressure cavity 31；Induction, the acquisition of pressure signal are carried out to atmospheric pressure cavity 31 using pressure sensor 5, i.e.,
It can easily detect the internal pressure of pipeline to be measured.Upon completion of the assays, pipeline to be measured is directly pulled out.Therefore, the pressure
Power detection is easy to operate, safe.It is particularly suitable for consumptive material is separated or acquired with blood constituent and match, for detecting blood
The air pressure of channel interior.In the detection process, if there is fluid liquid to enter atmospheric pressure cavity 31 in pipeline to be measured, in order to protect
Demonstrate,prove the reliability of pressure detecting, it is necessary to which discharge remains in the fluid liquid in atmospheric pressure cavity 31 in time.For this purpose, air pressure can be located at
The first plug 1 is arranged in the outlet end of 31 bottom of chamber, and screw thread is formed between first plug 1 and pedestal 3 and is flexibly connected, and
31 outlet of atmospheric pressure cavity is sealed by the first plug 1；Further, it can also increase between the first plug 1 and pedestal 3 and set
Sealing element 2 is set, as shown in Fig. 2, to improve the sealing reliability between the first plug 1 and pedestal 3.It only needs to unscrew the first plug
1, the residual liquid overstock in atmospheric pressure cavity 31 can quickly and easily be discharged.
For having the pipeline to be measured of air filtering plug, in order to guarantee and improve the reliability of its pressure sensing result,
After pipeline to be measured and pipe joint 14 are connected, it is necessary to be installed in place air filtering plug therein.For this purpose, the pipe joint
14 use air filtering plug connector, increase setting resilient sleeve 12 and protective case 13 on the basis of above-mentioned pressure acquisition device,
Pipe interface 131 is opened up on protective case 13, the resilient sleeve 12 is connect with pedestal 3, protective case 13 respectively, the pipe joint
14 are located in 13 inner cavity of protective case.As shown in Fig. 2, when air filtering plug and 14 grafting of pipe joint operate, the protection
It covers 13 elasticities of compression set 12 and is moved downward relative to pipe joint 14, until air filtering plug is plugged into pipe joint 14
Position, rotary air filtering plug are stuck in air filtering plug in pipe joint 14；Then, the protective case 13 will be in resilient sleeve
It is resetted under 12 resilient force.
In order to better assure that air filtering plug is installed in place, the reliability of pressure sensing result, such as Fig. 2 are further increased
It is shown, movement chamber 32 and optoelectronic switch slot can be set inside pedestal 3, it is fixed in the setting of movement 32 open end of chamber and pedestal 3
Optoelectronic switch 8 is arranged in the fixed block 11 of connection in optoelectronic switch slot；Preferably, lead between the fixed block 11 and pedestal 3
Attachment screw 16 is crossed to form a fixed connection.It is fixedly installed with circuit board 7 at the top of pedestal 3, is fixedly mounted on the circuit board 7
Pressure sensor 5 and optoelectronic switch 8, the pressure sensor 5, optoelectronic switch 8 are electrically connected with the formation of circuit board 7 respectively, such as
Shown in Fig. 3.Therefore, the optoelectronic switch 8 is located in movement chamber 32 and forms between pedestal 3 and is fixedly connected.Described
Pipe joint 14 is fixedly connected on one end of guide post 9, and the other end of the guide post 9 is then fixedly connected with pedestal 3, preferably
Ground forms screw thread movable connection structure, to facilitate the dismounting of guide post 9 to grasp between the other end and pedestal 3 of the guide post 9
Make.The resilient sleeve 12 is fixedly connected with motion block 10, and the motion block 10, which is located in movement chamber 32 and is formed with guide post 9, to be slided
Dynamic socket structure opens up fluid channel in the guide post 9, makes pipe joint 14, guide post 9, is formed between atmospheric pressure cavity 31
One airflow channel.
As shown in Figure 1, the pressure sensor 5 is sequentially connected electrically with A/D converter, control device, display device, institute
It states the input terminal of control device while being electrically connected with optoelectronic switch 8, and output end is electrically connected with warning device simultaneously.The control
Device processed uses single-chip microcontroller or PLC, and the display device can use liquid crystal display, or use LED charactrons,
It is mainly used for showing pipeline pressure detection value.The warning device can use buzzer, or use alarm lamp.
When air filtering plug is inserted into pipe joint 14, the resilient sleeve 12 and motion block 10 are slided to the left along guide post 9
It is dynamic, and move closer to atmospheric pressure cavity 31.In order to improve the sliding stability of resilient sleeve 12, motion block 10, with guarantee air filtering plug with
Smooth grafting between pipe joint 14 can be fixedly connected with the guide rod 15 being parallel to each other with guide post 9 on fixed block 11,
And formed between guide rod 15 and motion block 10 and be slidably socketed structure, as shown in Figure 2.The motion block 10 in sliding process,
It can be finally rested in optoelectronic switch slot across optoelectronic switch slot, detect whether the motion block 10 rests on light by optoelectronic switch 8
In electric switch slot, corresponding alarm signal is issued according to warning device, whether can accurately judge air filtering plug
Grafting is in place.After air filtering plug grafting in place, the air pressure in pipeline to be measured can detecte by pressure sensor 5
Signal, which is transferred to control device after A/D converter is handled, and the pressure detected is shown by display device
Force value；According to the alarm signal that warning device issues, whether in the normal range the pressure value detected can be determined.
The present invention can separate or acquire consumptive material with blood constituent and match, and keep air filtering plug quasi- by external force pushing
It is really fixed in pressure acquisition device, pressure acquisition device and pipeline to be measured is made to form the pipe-line system of a sealing；Pass through inspection
Survey pipe-line system air filtering plug whether be installed in place, and during the work time in pipeline positive pressure or negative pressure examine
It surveys, so that the separation or acquisition for blood constituent provide a kind of safe, simple, reliable pressure measuring unit.Wherein, the guarantor
Sheath 13, motion block 10, fixed block 11 are made of nylon66 fiber, and the resilient sleeve 12 is made of neoprene, not only process,
Assembling is easy, and the implementation cost is low.
The foregoing is merely illustrative of the preferred embodiments of the present invention, is not intended to limit the invention, it is noted that all
Made any modifications, equivalent replacements, and improvements etc. within the spirit and principles in the present invention should be included in guarantor of the invention
Within the scope of shield.
Claims (9)
1. a kind of loine pressure detection system, it is characterised in that: including pressure acquisition device, the pressure acquisition device includes base
Seat (3), pressure sensor (5), resilient sleeve (12) and protective case (13) and pipe joint (14) are arranged inside pedestal (3)
Atmospheric pressure cavity (31) opens up pipe interface (131) on protective case (13), the resilient sleeve (12) respectively with pedestal (3), protective case
(13) it connects, the pressure sensor (5), pipe joint (14) are respectively and fixedly installed on pedestal (3), and pipe joint (14)
In protective case (13) inner cavity, the protective case (13) moves relative to pipe joint (14), and the bullet in resilient sleeve (12)
Property power effect is lower resets；The pipe joint (14) communicates with atmospheric pressure cavity (31), and the pressure sensor (5) is to atmospheric pressure cavity
(31) induction, the acquisition of pressure signal are carried out.
2. a kind of loine pressure detection system according to claim 1, it is characterised in that: further include guide post (9), motion block
(10) it is arranged and pedestal (3) with fixed block (11), setting movement chamber (32) inside pedestal (3) in movement chamber (32) open end
The fixed block (11) being fixedly connected；Guide post (9) opposite end is fixedly connected with pedestal (3), pipe joint (14) respectively,
And airflow channel is formed between pipe joint (14), guide post (9), atmospheric pressure cavity (31), the motion block (10) is located at movement chamber
(32) it is formed in and with guide post (9) and is slidably socketed structure, be fixedly connected between the resilient sleeve (12) and motion block (10).
3. a kind of loine pressure detection system according to claim 2, it is characterised in that: solid on the fixed block (11)
Surely guide rod (15) are connected, is formed between the guide rod (15) and motion block (10) and is slidably socketed structure.
4. a kind of loine pressure detection system according to claim 1-3, it is characterised in that: the pressure is adopted
Acquisition means further include the first plug (1), and screw thread is formed between first plug (1) and pedestal (3) and is flexibly connected, and first is stifled
Head (1) seals atmospheric pressure cavity (31) outlet.
5. a kind of loine pressure detection system according to claim 1-3, it is characterised in that: the pressure passes
Sensor (5) is sequentially connected electrically with A/D converter, control device, display device, and the control device is single-chip microcontroller or PLC, institute
Display device is stated for showing pipeline pressure detection value.
6. a kind of loine pressure detection system according to claim 5, it is characterised in that: it further include warning device, it is described
Warning device is electrically connected with control device.
7. a kind of loine pressure detection system according to claim 6, it is characterised in that: the warning device is buzzing
Device or alarm lamp.
8. a kind of loine pressure detection system according to claim 5, it is characterised in that: further include optoelectronic switch (8), institute
It states in the movement chamber (32) that optoelectronic switch (8) is mounted in pedestal (3), and is electrically connected with control device.
9. a kind of loine pressure detection method, it is characterised in that: using such as the described in any item loine pressure inspections of claim 1-8
Examining system carries out, and the pipe joint (14) and pipeline to be measured are tightly connected, and makes shape between pipeline and atmospheric pressure cavity (31) to be measured
At fluid channel, by pressure sensor (5) atmospheric pressure cavity (31) are carried out with induction, the acquisition of pressure signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610871489.9A CN106441697B (en) | 2016-09-30 | 2016-09-30 | A kind of loine pressure detection system and detection method |
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| Application Number | Priority Date | Filing Date | Title |
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| CN201610871489.9A CN106441697B (en) | 2016-09-30 | 2016-09-30 | A kind of loine pressure detection system and detection method |
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| CN106441697A CN106441697A (en) | 2017-02-22 |
| CN106441697B true CN106441697B (en) | 2018-12-21 |
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Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110825020A (en) * | 2019-10-21 | 2020-02-21 | 四川南格尔生物科技有限公司 | Protection monitoring system of full-automatic composition blood collection system |
| CN110793709B (en) * | 2019-12-04 | 2021-07-23 | 四川南格尔生物科技有限公司 | Pressure monitoring device |
| CN112629775A (en) * | 2020-11-26 | 2021-04-09 | 国营芜湖机械厂 | Real-time monitoring equipment and monitoring method for pressure of oil supply pipeline |
| CN114659703B (en) * | 2022-03-25 | 2024-04-30 | 山东中保康医疗器具有限公司 | Blood line pressure detection system of blood separator |
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|---|---|---|---|---|
| CN103765184A (en) * | 2011-08-22 | 2014-04-30 | 日机装株式会社 | Fluid flow path pressure detection device |
| CN105073003A (en) * | 2013-03-04 | 2015-11-18 | 安多美达医疗系统有限公司 | Pressure-measuring system |
| CN205843873U (en) * | 2016-07-22 | 2016-12-28 | 四川南格尔生物科技有限公司 | A kind of pressure monitor |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2514762C (en) * | 2003-01-30 | 2011-09-13 | Jms Co., Ltd. | Pressure detector and pressure detecting method |
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Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103765184A (en) * | 2011-08-22 | 2014-04-30 | 日机装株式会社 | Fluid flow path pressure detection device |
| CN105073003A (en) * | 2013-03-04 | 2015-11-18 | 安多美达医疗系统有限公司 | Pressure-measuring system |
| CN205843873U (en) * | 2016-07-22 | 2016-12-28 | 四川南格尔生物科技有限公司 | A kind of pressure monitor |
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