CN209342279U - A kind of pressure sensor for Ultra Performance Liquid Chromatography instrument - Google Patents
A kind of pressure sensor for Ultra Performance Liquid Chromatography instrument Download PDFInfo
- Publication number
- CN209342279U CN209342279U CN201920323703.6U CN201920323703U CN209342279U CN 209342279 U CN209342279 U CN 209342279U CN 201920323703 U CN201920323703 U CN 201920323703U CN 209342279 U CN209342279 U CN 209342279U
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- Prior art keywords
- pressure
- threaded hole
- guide card
- liquid chromatography
- performance liquid
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- 238000004704 ultra performance liquid chromatography Methods 0.000 title claims abstract description 18
- 239000007788 liquid Substances 0.000 claims abstract description 27
- 230000006835 compression Effects 0.000 claims abstract description 11
- 238000007906 compression Methods 0.000 claims abstract description 11
- 238000001514 detection method Methods 0.000 claims abstract description 11
- 230000007797 corrosion Effects 0.000 abstract description 2
- 238000005260 corrosion Methods 0.000 abstract description 2
- 238000009434 installation Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 2
- 239000012530 fluid Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000004460 liquid liquid chromatography Methods 0.000 description 2
- 238000000506 liquid--solid chromatography Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000001681 protective effect Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 208000009043 Chemical Burns Diseases 0.000 description 1
- 208000018380 Chemical injury Diseases 0.000 description 1
- 230000005526 G1 to G0 transition Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000000354 decomposition reaction Methods 0.000 description 1
- 230000007812 deficiency Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005243 fluidization Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000003993 interaction Effects 0.000 description 1
- 238000005070 sampling Methods 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a kind of pressure sensors for Ultra Performance Liquid Chromatography instrument of Ultra Performance Liquid Chromatography instrument technical field, including sensor body and connection pipe body, the inner cavity of connection pipe body offers the input duct and liquid outlet pipe for being mutually perpendicular to connection, step threaded hole is offered at the top of connection pipe body, the inner cavity of step threaded hole is disposed with external screw thread baffle ring from top to bottom, pressure guide card, compression spring and pressure valve block, external screw thread baffle ring outer wall and step threaded hole bolt, under pressure valve block off working state with the interior side port of input duct is closed is bonded, pressure guide rod is connected at the top center of pressure guide card, the top of pressure guide rod is abutted against with sensor body floor detection end, the bottom of pressure guide card and the step ledge of step threaded hole abut against, the utility model provides one kind in ultra performance liquid chromatography Instrument, and can improve liquid corrosion and avoid overload damage pressure sensor.
Description
Technical field
The utility model relates to Ultra Performance Liquid Chromatography instrument technical fields, specially a kind of to be used for Ultra Performance Liquid Chromatography instrument
Pressure sensor.
Background technique
Liquid chromatograph is a kind of difference using mixture distribution ratio between liquid-solid or immiscible two kinds of liquid,
Mixture is first separated, the instrument then analyzed and identified.Liquid chromatograph is liquid or solid according to stationary phase, and is divided
For liquid-liquid chromatography (LLC) and liquid-solid chromatography (LSC).Liquid chromatograph is by high pressure pump, sampling system, temperature control system
The part such as system, chromatographic column, detection system, signal recording system forms.
Pressure sensor is an important component in liquid chromatograph, and liquid chromatograph is in the process of running, interior
Portion can generate a relatively large pressure, and liquid is carried out compression processing, and then pressure sensor is able to detect that liquid produces
Raw pressure, still, existing pressure sensor find there is several points deficiency in use:
1, existing pressure sensor takes the source (i.e. pressure sensitive end) to be directly connected to installation with fluid pipeline, so that pressure
Sensor takes source to contact for a long time with liquid immersion in pipeline, is easy to be corroded by aqueous chemical, so that influencing it uses the longevity
Life and detection accuracy；
2, the source (i.e. pressure sensitive end) that takes of existing pressure sensor is directly connected to installation with fluid pipeline, and lacks pressure
Power overcurrent protection structure is likely to result in sensor permanent damages inside pipeline when instantaneous pressure overload.
Based on this, the utility model devises a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument, on solving
State problem.
Utility model content
The purpose of this utility model is to provide a kind of pressure sensors for Ultra Performance Liquid Chromatography instrument, on solving
State the technical issues of existing pressure sensor is found in use.
To achieve the above object, the utility model provides the following technical solutions: a kind of for Ultra Performance Liquid Chromatography instrument
Pressure sensor, the connection pipe body including sensor body and for installing the sensor body, the connection pipe body
Inner cavity offers the input duct and liquid outlet pipe for being mutually perpendicular to connection, the port difference position of the input duct and liquid outlet pipe
In the bottom and left side of the connection pipe body, the top of the connection pipe body is offered with the coaxial place of input duct and inlet tube
The step threaded hole that road connects, the sensor body are bolted in the top of the step threaded hole；
The inner cavity of the step threaded hole be disposed with from top to bottom external screw thread baffle ring, pressure guide card, compression spring and
Pressure valve block, the external screw thread baffle ring outer wall and step threaded hole bolt, the compression spring are connected to the pressure guide card
Between pressure valve block, under the pressure valve block off working state with the interior side port of input duct is closed is bonded, the pressure
Be connected with pressure guide rod at the top center of guide card, the top of the pressure guide rod pass through after the external screw thread baffle ring with sensor
Body bottom portion test side abuts against, and the bottom of the pressure guide card and the step ledge of step threaded hole abut against.
Preferably, the bottom surface of the pressure guide card and pressure valve block is provided with rubber gasket.
Preferably, the diameter of the pressure valve block is less than the inner ring diameter of the step ledge.
Preferably, the vertical range between the top surface of the pressure guide card and external screw thread baffle ring bottom surface is less than connection pipe body bottom
Portion test side falls into safely stroke.
Preferably, the port of the input duct and liquid outlet pipe is the consistent pipe screw joint of specification.
Compared with prior art, the utility model has the following beneficial effects:
The utility model is different from the mounting means that existing ultra performance liquid chromatography pressure sensor is directly connected to pipeline,
The present apparatus by the way that pressure guide card, compression spring and pressure valve structure are arranged between source and liquid stream in taking for sensor body,
Step ledge in the mounting means due to pressure guide card in normal operation with step threaded hole abuts against, and can have
Effect avoids taking source to contact with liquid immersion in pipeline for a long time due to pressure sensor, so as to improve it due to by fluidization
Learning corrosion leads to service life and the impacted problem of detection accuracy；
The utility model is provided with external screw thread baffle ring above pressure guide card, and the top surface of pressure guide card and external screw thread are kept off
Vertical range between ring bottom surface is less than connection pipe body floor detection end and falls into stroke safely, and external screw thread baffle ring can be used as pressure mistake
Protection structure is carried, inside pipeline when instantaneous pressure overload, pressure guide card can be stopped persistently to move up, is played super to pressure sensor
Carry protective effect.
Detailed description of the invention
In order to illustrate more clearly of the technical solution of the utility model embodiment, make required for being described below to embodiment
Attached drawing is briefly described, it should be apparent that, the drawings in the following description are merely some embodiments of the present invention,
For those of ordinary skill in the art, without creative efforts, it can also be obtained according to these attached drawings
Other attached drawings.
FIG. 1 is a schematic structural view of the utility model；
The portion A structure enlarged view in Fig. 2 Fig. 1；
Fig. 3 is the utility model STRUCTURE DECOMPOSITION status diagram；
Fig. 4 is the utility model rubber gasket structural schematic diagram.
In attached drawing, parts list represented by the reference numerals are as follows:
1- sensor body, 2- connection pipe body, 3- input duct, 4- liquid outlet pipe, 5- step threaded hole, 51- step are convex
Edge, 6- external screw thread baffle ring, 7- pressure guide card, 8- compression spring, 9- pressure valve block, 10- pressure guide rod, 11- rubber gasket,
12- pipe screw joint.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without creative efforts
All other embodiment obtained, fall within the protection scope of the utility model.
Fig. 1-4 is please referred to, the utility model provides a kind of technical solution: a kind of pressure for Ultra Performance Liquid Chromatography instrument
Sensor, the connection pipe body 2 including sensor body 1 and for installing sensor body 1, the inner cavity of connection pipe body 2 opens up
There are the input duct 3 and liquid outlet pipe 4 for being mutually perpendicular to connection, the port of input duct 3 and liquid outlet pipe 4 is located at connecting tube
The bottom and left side of body 2, top and the coaxial place of input duct 3 of connection pipe body 2 offer the step to connect with input duct 3
Threaded hole 5, sensor body 1 are bolted in the top of step threaded hole 5；The inner cavity of step threaded hole 5 is set gradually from top to bottom
There are external screw thread baffle ring 6, pressure guide card 7, compression spring 8 and pressure valve block 9,6 outer wall of external screw thread baffle ring and 5 phase spiral shell of step threaded hole
Connect, compression spring 8 is connected between pressure guide card 7 and pressure valve block 9, under 9 off working state of pressure valve block with input duct 3
The closed fitting of interior side port, pressure guide rod 10 is connected at the top center of pressure guide card 7, and the top of pressure guide rod 10 passes through outer
It is abutted against after screw thread baffle ring 6 with 1 floor detection end of sensor body, the bottom of pressure guide card 7 and the step of step threaded hole 5 are convex
Edge 51 abuts against.
Wherein, the bottom surface of pressure guide card 7 and pressure valve block 9 is provided with rubber gasket 11, plays sealing function；Pressure
The diameter of valve block 9 is less than the inner ring diameter of step ledge 51, when installing convenient for pressure valve block 9, passes through 51 inner ring of step ledge；Pressure
Vertical range between 6 bottom surface of top surface and external screw thread baffle ring of power guide card 7 is less than 2 floor detection end of connection pipe body and falls into row safely
Journey, external screw thread baffle ring 6 can be used as pressure overload protection structure, inside pipeline when instantaneous pressure overload, can stop pressure guide card 7
It persistently moves up, plays the role of to pressure sensor overload protection；Input duct 3 is that specification is consistent with the port of liquid outlet pipe 4
Pipe screw joint 12, connect with external pipe convenient for device.
One concrete application of the present embodiment are as follows:
The present apparatus is a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument, and the present apparatus passes through in sensor body 1
Take between source and liquid stream setting pressure guide card 7,9 structure of compression spring 8 and pressure valve block, in actual work, liquid stream circulation
Pressure valve block 9 must be jacked up when connection pipe body 2, the pressure on top surface that pressure valve block 9 is subject to is conducted by compression spring 8 to pressure guide card 7,
And then pressure detecting is realized to the source that takes of sensor body 1 by the conduction of pressure guide rod 10 on pressure guide card 7；The installation
Since pressure guide card 7 is abutted against with the step ledge 51 of step threaded hole 5 in normal operation in mode, and pressure guide card
7 bottom is provided with rubber gasket 11, thus can effectively avoid due to pressure sensor take source for a long time with liquid in pipeline
The problem of body impregnates contact, is influenced its service life and detection accuracy by aqueous chemical burn into so as to improve it；
The present apparatus is provided with external screw thread baffle ring 6, and 6 outer wall of external screw thread baffle ring and step screw thread in the top of pressure guide card 7
5 bolt of hole, can be freely lifted adjusting, when installation and debugging, make between 6 bottom surface of top surface and external screw thread baffle ring of pressure guide card 7
Vertical range is less than 2 floor detection end of connection pipe body and falls into stroke safely, so that external screw thread baffle ring 6 can be used as pressure overload
Structure is protected, inside pipeline when instantaneous pressure overload, pressure guide card 7 can be stopped persistently to move up, is played super to pressure sensor
Carry protective effect.
In the description of the present invention, it should be understood that term " coaxial ", " bottom ", " one end ", " top ", " in
The orientation of the instructions such as portion ", " other end ", "upper", " side ", " top ", "inner", " front ", " center ", " both ends " or position are closed
System is to be based on the orientation or positional relationship shown in the drawings, and is merely for convenience of describing the present invention and simplifying the description, rather than
The device or element of indication or suggestion meaning must have a particular orientation, be constructed and operated in a specific orientation, therefore cannot
It is construed as a limitation of the present invention.
In the present invention unless specifically defined or limited otherwise, term " installation ", " setting ", " connection ", " Gu
Calmly ", the terms such as " being screwed on " shall be understood in a broad sense, for example, it may be being fixedly connected, may be a detachable connection, or integral；
It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, can also indirectly connected through an intermediary, it can be with
It is the interaction relationship of the connection or two elements inside two elements, unless otherwise restricted clearly, for this field
For those of ordinary skill, the concrete meaning of above-mentioned term in the present invention can be understood as the case may be.
While there has been shown and described that the embodiments of the present invention, for the ordinary skill in the art,
It is understood that these embodiments can be carried out with a variety of variations in the case where not departing from the principles of the present invention and spirit, repaired
Change, replacement and variant, the scope of the utility model is defined by the appended claims and the equivalents thereof.
Claims (5)
1. a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument, it is characterised in that: including sensor body (1) and use
In the connection pipe body (2) for installing the sensor body (1), the inner cavity of the connection pipe body (2), which offers, to be mutually perpendicular to be connected to
Input duct (3) and liquid outlet pipe (4), the port of the input duct (3) and liquid outlet pipe (4) is located at the connection
The top of the bottom and left side of tube body (2), the connection pipe body (2) is offered with input duct (3) coaxial place and input duct
(3) the step threaded hole (5) to connect, the sensor body (1) are bolted in the top of the step threaded hole (5)；
The inner cavity of the step threaded hole (5) is disposed with external screw thread baffle ring (6), pressure guide card (7), pressure bullet from top to bottom
Spring (8) and pressure valve block (9), external screw thread baffle ring (6) outer wall and step threaded hole (5) bolt, the compression spring (8)
Be connected between the pressure guide card (7) and pressure valve block (9), under pressure valve block (9) off working state with input duct
(3) the closed fitting of interior side port is connected with pressure guide rod (10), the pressure at the top center of the pressure guide card (7)
The top of guide rod (10) passes through the external screw thread baffle ring (6) and abuts against afterwards with sensor body (1) floor detection end, the pressure
The bottom of guide card (7) and the step ledge (51) of step threaded hole (5) abut against.
2. a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument according to claim 1, it is characterised in that: described
The bottom surface of pressure guide card (7) and pressure valve block (9) is provided with rubber gasket (11).
3. a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument according to claim 1, it is characterised in that: described
The diameter of pressure valve block (9) is less than the inner ring diameter of the step ledge (51).
4. a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument according to claim 1, it is characterised in that: described
Vertical range between the top surface and external screw thread baffle ring (6) bottom surface of pressure guide card (7) is pacified less than connection pipe body (2) floor detection end
Stroke is fallen into entirely.
5. a kind of pressure sensor for Ultra Performance Liquid Chromatography instrument according to claim 1, it is characterised in that: described
The port of input duct (3) and liquid outlet pipe (4) is the consistent pipe screw joint (12) of specification.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323703.6U CN209342279U (en) | 2019-03-14 | 2019-03-14 | A kind of pressure sensor for Ultra Performance Liquid Chromatography instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920323703.6U CN209342279U (en) | 2019-03-14 | 2019-03-14 | A kind of pressure sensor for Ultra Performance Liquid Chromatography instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209342279U true CN209342279U (en) | 2019-09-03 |
Family
ID=67763015
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920323703.6U Expired - Fee Related CN209342279U (en) | 2019-03-14 | 2019-03-14 | A kind of pressure sensor for Ultra Performance Liquid Chromatography instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209342279U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487008A (en) * | 2020-04-22 | 2020-08-04 | 广东电网有限责任公司 | Air pressure locking device for online detection of sulfur hexafluoride gas pressure |
-
2019
- 2019-03-14 CN CN201920323703.6U patent/CN209342279U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111487008A (en) * | 2020-04-22 | 2020-08-04 | 广东电网有限责任公司 | Air pressure locking device for online detection of sulfur hexafluoride gas pressure |
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Legal Events
| 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: 20190903 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |