CN109682529A - A kind of piece of formula differential pressure force snesor - Google Patents
A kind of piece of formula differential pressure force snesor Download PDFInfo
- Publication number
- CN109682529A CN109682529A CN201910043948.8A CN201910043948A CN109682529A CN 109682529 A CN109682529 A CN 109682529A CN 201910043948 A CN201910043948 A CN 201910043948A CN 109682529 A CN109682529 A CN 109682529A
- Authority
- CN
- China
- Prior art keywords
- probe
- core
- body seat
- core body
- piece
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
- 239000000523 sample Substances 0.000 claims abstract description 36
- 230000007704 transition Effects 0.000 claims abstract description 23
- NJPPVKZQTLUDBO-UHFFFAOYSA-N novaluron Chemical compound C1=C(Cl)C(OC(F)(F)C(OC(F)(F)F)F)=CC=C1NC(=O)NC(=O)C1=C(F)C=CC=C1F NJPPVKZQTLUDBO-UHFFFAOYSA-N 0.000 claims abstract description 20
- 230000006835 compression Effects 0.000 claims abstract description 10
- 238000007906 compression Methods 0.000 claims abstract description 10
- XKRFYHLGVUSROY-UHFFFAOYSA-N Argon Chemical compound [Ar] XKRFYHLGVUSROY-UHFFFAOYSA-N 0.000 claims description 6
- 238000003466 welding Methods 0.000 claims description 6
- 238000012856 packing Methods 0.000 claims description 4
- 229910000838 Al alloy Inorganic materials 0.000 claims description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 3
- 229910052786 argon Inorganic materials 0.000 claims description 3
- 229910052802 copper Inorganic materials 0.000 claims description 3
- 239000010949 copper Substances 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 5
- 230000008676 import Effects 0.000 abstract description 3
- 238000012545 processing Methods 0.000 abstract description 3
- 230000035945 sensitivity Effects 0.000 abstract description 3
- 238000013461 design Methods 0.000 description 6
- 238000007789 sealing Methods 0.000 description 4
- 238000009434 installation Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 230000000712 assembly Effects 0.000 description 1
- 238000000429 assembly Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000012530 fluid Substances 0.000 description 1
- 239000007789 gas Substances 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 239000007787 solid Substances 0.000 description 1
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01L—MEASURING FORCE, STRESS, TORQUE, WORK, MECHANICAL POWER, MECHANICAL EFFICIENCY, OR FLUID PRESSURE
- G01L13/00—Devices or apparatus for measuring differences of two or more fluid pressure values
-
- 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
- G01L19/04—Means for compensating for effects of changes of temperature, i.e. other than electric compensation
-
- 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
- G01L19/06—Means for preventing overload or deleterious influence of the measured medium on the measuring device or vice versa
- G01L19/0618—Overload protection
-
- 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
- G01L19/14—Housings
- G01L19/141—Monolithic housings, e.g. molded or one-piece housings
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Measuring Fluid Pressure (AREA)
Abstract
The invention discloses a kind of piece of formula differential pressure force snesors, integral type pedestal and the probe of popping one's head in are provided with two groups, the probe is connected on integral type pedestal, the end of the probe is fixedly connected with antioverloading diaphragm, the top of the integral type pedestal is fixedly connected with transition sleeve, O-ring is installed in the groove opened up on the probe, core body seat is equipped in the transition sleeve, the part for the upper protrusion of counterbore and probe that the core body seat bottom opens up, which cooperates, to be positioned, gasket is provided at the step that the core is matched with core body seat, the lower end of the core is equipped with high steady grading mouth pressure-sensitive chip；It is cooperatively connected by screw-in mode, being screwed by interior compression cap thread is in close contact high steady grading mouth pressure-sensitive chip and probe, core bottom is cooperated advanced processing of circuit and technique for temperature compensation, is had the characteristics that high sensitivity, high-precision, high stability using the pressure-sensitive chip of high steady grade import.
Description
Technical field
The present invention relates to pressure sensor technique fields, specially a kind of piece of formula differential pressure force snesor.
Background technique
Block formula differential pressure transmitter is a pressure transmitter for integrating structure height in conjunction with prior art principle, is suitable for
Measure gas, liquid；Existing pressure transmitter is to be equipped with pressure room in transmitter enclosure body, is equipped with bellows-type in pressure room
Differential pressure pick-up, bellows-type differential pressure pick-up two sides are positive pressure room and negative pressure room respectively, are equipped with below positive pressure room and just take
Pressure pipe, negative pressure room lower section are equipped with negative pressure pipe, positive pressure pipe and negative pressure pipe and are connected with fluid pressure obtaning device, and bellows-type is poor
Pressure sensor is connected through signal wire with instrument, so that structure is complicated, volume is big, and overload capacity is weak, and precision is low, stability
Difference.It would therefore be desirable to provide a kind of piece of formula differential pressure force snesor.
Summary of the invention
The purpose of the present invention is to provide a kind of piece of formula differential pressure force snesor, structure is compact to design, and rationally installation space is small,
And there is overload protection, stability is high, to solve the problems mentioned in the above background technology.
To achieve the above object, the invention provides the following technical scheme: a kind of piece of formula differential pressure force snesor, including integral type
Pedestal and probe, the probe are provided with two groups, and the probe is connected on integral type pedestal, and the end of the probe is fixed to be connected
It is connected to antioverloading diaphragm, the top of the integral type pedestal is fixedly connected with transition sleeve, peace in the groove opened up on the probe
Equipped with O-ring, core body seat is equipped in the transition sleeve, the counterbore that the core body seat bottom opens up and the part of the upper protrusion of probe are matched
Positioning is closed, and the bottom of core body seat is contacted with O-ring, the first washer, the core body seat are equipped in the hole of the core body seat bottom
Core has inside been installed, step structure has been offered on the inner wall of the core body seat, the side of the core offers and core body seat
The step structure matched is provided with gasket, the lower end peace of the core at the step that the core is matched with core body seat
Equipped with high steady grading mouth pressure-sensitive chip, the core upper end is fixedly connected with interior clamping cap, and the upper end for crossing set is fixedly connected
There is external compression cap.
Preferably, the end face of the probe is ripple type, and the antioverloading diaphragm is by argon arc welding welding at the end of probe
Portion.
Preferably, described pop one's head in positions with the limited step cooperation opened up on integral type pedestal, and the transition sleeve cooperation is welded
It connects on the top of integral type pedestal.
Preferably, the core upper end is provided with second packing ring, and the interior clamping cap is threadedly attached on core body seat,
And interior clamping cap screws compression core by screw thread.
Preferably, the upper end of the transition sleeve offers internal screw thread, and the external compression cap, which is connected through a screw thread, to be fixed on
It crosses on the internal screw thread of set.
Preferably, first washer is arranged to copper washer, and the transition sleeve is externally connected with casing assembly, the shell
Component is Al-alloy casing, and includes the electric part and display portion of transmitter in casing assembly.
Compared with prior art, the beneficial effects of the present invention are:
1, structure is compact to design rationally, more practical, and compact structure design makes product reduce installation space, passes through internal pressure
Tight cap thread, which screws, ensures to compress core on sealing ring, forms sensor module, using antioverloading diaphragm limitation pressure
Form carries out pressure overload protection；
2, it is cooperatively connected by screw-in mode, being screwed by interior compression cap thread makes high steady grading mouth pressure-sensitive chip and probe
It is in close contact, core bottom is cooperated advanced processing of circuit and technique for temperature compensation, had using the pressure-sensitive chip of high steady grade import
There is the characteristics of high sensitivity, high-precision, high stability.
Detailed description of the invention
Fig. 1 is the structural diagram of the present invention；
Fig. 2 is present invention looks up structural representation of the invention；
Fig. 3 is the structural schematic diagram of casing assembly in the present invention.
In figure: 1 integral type pedestal, 2 probes, 3O type circle, 4 first washers, 5 gaskets, 6 cores, 7 second packing rings, 8 cores
Seat, clamping cap, 10 transition sleeves, 11 external compression caps, 12 casing assemblies, 13 antioverloading diaphragms, 14 high steady grading mouthfeels press cores in 9
Piece.
Specific embodiment
Following will be combined with the drawings in the embodiments of the present invention, and technical solution in the embodiment of the present invention carries out clear, complete
Site preparation description, it is clear that described embodiments are only a part of the embodiments of the present invention, instead of all the embodiments.It is based on
Embodiment in the present invention, it is obtained by those of ordinary skill in the art without making creative efforts every other
Embodiment shall fall within the protection scope of the present invention.
Fig. 1-3 is please referred to, the present invention provides a kind of technical solution: a kind of piece of formula differential pressure force snesor, including integral type base
Seat 1 and probe 2, the probe 2 are provided with two groups, and the probe 2 is connected on integral type pedestal 1, and the end of the probe 2 is solid
Surely it is connected with antioverloading diaphragm 13, the top of the integral type pedestal 1 is fixedly connected with transition sleeve 10, opens up on the probe 2
Groove in O-ring 3 is installed, be equipped with core body seat 8, the counterbore and spy that 8 bottom of core body seat opens up in the transition sleeve 10
Raised part cooperates positioning on first 2, and the bottom of core body seat 8 is contacted with O-ring 3, is equipped in the hole of 8 bottom of core body seat
First washer 4 has been equipped with core 6 in the core body seat 8, step structure, the core is offered on the inner wall of the core body seat 8
The side of body 6 offers the step structure matched with core body seat 8, is arranged at the step that the core 6 is matched with core body seat 8
There is gasket 5, the lower end of the core 6 is equipped with high steady grading mouth pressure-sensitive chip 14, and 6 upper end of core is fixedly connected with interior
Clamping cap 9, the upper end for crossing set 10 are fixedly connected with external compression cap 11.
Specifically, the end face of the probe 2 is ripple type, the antioverloading diaphragm 13 is by argon arc welding welding in probe 2
End.
Specifically, the limited step cooperation opened up on the probe 2 and integral type pedestal 1 positions, the transition sleeve 10 is matched
Close the top for being welded on integral type pedestal 1.
Specifically, 6 upper end of core is provided with second packing ring 7, the interior clamping cap 9 is threadedly attached in core body seat
On 8, and interior clamping cap 9 is screwed by screw thread and compresses core 6；Being screwed by screw thread ensures to compress core on sealing ring, shape
At sensor module.
Specifically, the upper end of the transition sleeve 10 offers internal screw thread, the external compression cap 11 is connected through a screw thread fixation
On the internal screw thread of transition sleeve 10, it is easily installed disassembly.
Specifically, first washer 4 is arranged to copper washer, the transition sleeve 10 is externally connected with casing assembly 12, institute
Stating casing assembly 12 is Al-alloy casing.
Working principle: when in use, core body seat 8 is placed in the transition sleeve 10 being welded, and makes the two of 8 bottom of core body seat
Raised part, which cooperates, on a counterbore and probe 2 positions, the fool proof measure being equipped in design by the probe 2 of integral type, core
6 component of body cooperation after can automatic capturing, will not generate mistake and damage core 6, external compression cap 11 is finally screwed in transition sleeve 10
Threaded hole in, the screw thread on transition sleeve 10 is matched with the screw thread of casing assembly 12, O-ring 3 generate sealing function, formed become
Device is sent, and ensures can reach the degree of protection of IP67；Structure is compact to design rationally, more practical, and compact structure design makes to produce
Product reduce installation space, and being screwed by interior 9 screw thread of clamping cap ensures to compress core 6 on sealing ring 5, form sensor group
Part carries out pressure overload protection in the form of antioverloading diaphragm 13 limits flow；It is cooperatively connected by screw-in mode, by interior
9 screw thread of clamping cap, which screws, is in close contact high steady grading mouth pressure-sensitive chip 14 with probe 2, and 6 bottom of core is using high steady grade import
Pressure-sensitive chip 14, cooperate advanced processing of circuit and technique for temperature compensation, with high sensitivity, high-precision, high stability
Feature.
It although an embodiment of the present invention has been shown and described, for the ordinary skill in the art, can be with
A variety of variations, modification, replacement can be carried out to these embodiments without departing from the principles and spirit of the present invention by understanding
And modification, the scope of the present invention is defined by the appended.
Claims (6)
1. a kind of piece of formula differential pressure force snesor, including integral type pedestal (1) and probe (2), it is characterised in that: the probe (2)
Two groups are provided with, the probe (2) is connected on integral type pedestal (1), and the end of the probe (2) is fixedly connected with antioverloading
The top of diaphragm (13), the integral type pedestal (1) is fixedly connected with transition sleeve (10), the groove opened up on the probe (2)
Inside be equipped with O-ring (3), be equipped with core body seat (8) in the transition sleeve (10), the counterbore that core body seat (8) bottom opens up with
Raised part cooperates positioning on probe (2), and the bottom of core body seat (8) is contacted with O-ring (3), core body seat (8) bottom
Hole in be equipped with the first washer (4), has been equipped with core (6) in the core body seat (8), has been opened on the inner wall of the core body seat (8)
Equipped with step structure, the side of the core (6) offers the step structure matched with core body seat (8), the core (6) with
It is provided at the step that core body seat (8) matches gasket (5), the lower end of the core (6) is equipped with high steady grading mouthfeel pressure
Chip (14), core (6) upper end are fixedly connected with interior clamping cap (9), and the upper end for crossing set (10) is fixedly connected with outer
Clamping cap (11).
2. a kind of piece of formula differential pressure force snesor according to claim 1, it is characterised in that: the end face of the probe (2) is
Ripple type, the antioverloading diaphragm (13) pass through argon arc welding welding in the end of probe (2).
3. a kind of piece of formula differential pressure force snesor according to claim 1, it is characterised in that: probe (2) and the integral type
The limited step cooperation positioning opened up on pedestal (1), transition sleeve (10) cooperation are welded on the top of integral type pedestal (1).
4. a kind of piece of formula differential pressure force snesor according to claim 1, it is characterised in that: core (6) the upper end setting
Have second packing ring (7), the interior clamping cap (9) is threadedly attached on core body seat (8), and interior clamping cap (9) passes through screw thread
It screws and compresses core (6).
5. a kind of piece of formula differential pressure force snesor according to claim 1, it is characterised in that: the upper end of the transition sleeve (10)
Internal screw thread is offered, the external compression cap (11) is connected through a screw thread on the internal screw thread for being fixed on transition sleeve (10).
6. a kind of piece of formula differential pressure force snesor according to claim 1, it is characterised in that: the first washer (4) setting
At copper washer, the transition sleeve (10) is externally connected with casing assembly (12), and the casing assembly (12) is Al-alloy casing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043948.8A CN109682529B (en) | 2019-01-17 | 2019-01-17 | Block type differential pressure sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201910043948.8A CN109682529B (en) | 2019-01-17 | 2019-01-17 | Block type differential pressure sensor |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN109682529A true CN109682529A (en) | 2019-04-26 |
| CN109682529B CN109682529B (en) | 2024-08-23 |
Family
ID=66193442
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201910043948.8A Active CN109682529B (en) | 2019-01-17 | 2019-01-17 | Block type differential pressure sensor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN109682529B (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553785A (en) * | 2019-09-19 | 2019-12-10 | 嘉兴学院 | High-precision temperature compensation type pressure sensor |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05142076A (en) * | 1991-11-21 | 1993-06-08 | Hitachi Constr Mach Co Ltd | Differential pressure sensor and its diaphragm |
| DE19516326A1 (en) * | 1995-04-24 | 1996-11-07 | Hartmann & Braun Ag | Pressure difference measurement device |
| CN202350972U (en) * | 2011-10-28 | 2012-07-25 | 芜湖通和汽车管路系统有限公司 | High-range hydraulic sensor |
| CN104870961A (en) * | 2012-12-21 | 2015-08-26 | 恩德莱斯和豪瑟尔两合公司 | Hydraulic measuring unit with coplanar pressure inlets and differential pressure sensor having such a measuring unit |
| CN105758788A (en) * | 2014-09-30 | 2016-07-13 | 罗斯蒙特公司 | Corrosion rate measurement using sacrificial probe |
| CN209342277U (en) * | 2019-01-17 | 2019-09-03 | 上海朝辉压力仪器有限公司 | A kind of piece of formula differential pressure force snesor |
-
2019
- 2019-01-17 CN CN201910043948.8A patent/CN109682529B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH05142076A (en) * | 1991-11-21 | 1993-06-08 | Hitachi Constr Mach Co Ltd | Differential pressure sensor and its diaphragm |
| DE19516326A1 (en) * | 1995-04-24 | 1996-11-07 | Hartmann & Braun Ag | Pressure difference measurement device |
| CN202350972U (en) * | 2011-10-28 | 2012-07-25 | 芜湖通和汽车管路系统有限公司 | High-range hydraulic sensor |
| CN104870961A (en) * | 2012-12-21 | 2015-08-26 | 恩德莱斯和豪瑟尔两合公司 | Hydraulic measuring unit with coplanar pressure inlets and differential pressure sensor having such a measuring unit |
| CN105758788A (en) * | 2014-09-30 | 2016-07-13 | 罗斯蒙特公司 | Corrosion rate measurement using sacrificial probe |
| CN209342277U (en) * | 2019-01-17 | 2019-09-03 | 上海朝辉压力仪器有限公司 | A kind of piece of formula differential pressure force snesor |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110553785A (en) * | 2019-09-19 | 2019-12-10 | 嘉兴学院 | High-precision temperature compensation type pressure sensor |
| CN110553785B (en) * | 2019-09-19 | 2020-12-01 | 嘉兴学院 | High-precision temperature compensation type pressure sensor |
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| Publication number | Publication date |
|---|---|
| CN109682529B (en) | 2024-08-23 |
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