CN205909971U - Anticorrosive pressure sensor - Google Patents

Anticorrosive pressure sensor Download PDF

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Publication number
CN205909971U
CN205909971U CN201620699457.0U CN201620699457U CN205909971U CN 205909971 U CN205909971 U CN 205909971U CN 201620699457 U CN201620699457 U CN 201620699457U CN 205909971 U CN205909971 U CN 205909971U
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China
Prior art keywords
pressure sensor
liner
cylinder
utility
model
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CN201620699457.0U
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Chinese (zh)
Inventor
王志刚
刘军
郭坤
张振方
刘峰
刘一峰
刘丰祥
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Haineng Future Technology Co.,Ltd.
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JINAN HANON INSTRUMENTS CO Ltd
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Priority to CN201620699457.0U priority Critical patent/CN205909971U/en
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Abstract

The utility model provides an anticorrosive pressure sensor, belongs to the sensor technology field. Anticorrosive pressure sensor includes the pottery porcelain core body (4), outer silk crimping piece (5) and shell, and its characterized in that, shell include preceding shell, pressure sensor still includes inside lining (2), the inside lining has first end and second end, holds at the second of inside lining to be provided with the recess, and the axial of following the inside lining is provided with and is used for the leading -in fluidic through -hole of being surveyed, through -hole and recess intercommunication, outer silk crimping piece (5) will be made pottery the porcelain core body (4) and compressed tightly the second end at the inside lining, form the pressure measurement cavity, axial along preceding shell is provided with the cavity, inside lining, the pottery porcelain core body (4) and outer silk crimping piece (5) set gradually in the cavity. The utility model provides an anticorrosive pressure sensor corrosion resistance is strong, and mechanical strength is high.

Description

A kind of corrosion pressure sensor
Technical field
The utility model is related to a kind of corrosion pressure sensor, belongs to sensor technical field.
Background technology
The principle of direct pressure measurement type pressure sensor in the market is: medium (gas or liquid) is imported by joint In one confined space being surrounded by pressure measxurement core body and pipeline, pressure medium directly acts on and causes in measurement core surface Deformation, this small change passes to electronic surveying element, Chip-R or the piezo-electric crystal at the back side, big according to deflection Little be transformed into corresponding electric signal, by wire send out to need circuit.Joint imports and conduit enclosure is usually with not Rust Steel material is made, and also can be corroded in the highly acid or alkaline medium of high temperature, in order to solve above-mentioned technical problem, Import and conduit enclosure through the joint frequently with plastic material in prior art, therefore do pipe shaft shell using Teflon material, but Be, Teflon material pipe shaft Enclosure Strength poor it is impossible to accomplish measure high pressure sensor, using the pipe shaft of Teflon Shell typically can only accomplish 2mpa pressure below sensor, larger pressure just holds and can't stand and reveal damage.
Content of the invention
For solving technical problem present in prior art, goal of the invention of the present utility model is to provide a kind of anti-corrosion pressure Sensor, its corrosion resistance is strong, and high mechanical strength.
For realizing described utility model purpose, the utility model provides a kind of corrosion pressure sensor, and it includes ceramic core , it is characterised in that shell includes front casing, described pressure sensor also includes liner 2, institute for body 4, outer silk compressing piece 5 and shell State liner and there is first end and the second end, fluted in the second end setting of liner, axially arranged along liner has for importing The through hole of detected fluid, described through hole is connected with groove;Ceramic core 4 is pressed on the second of liner by described outer silk compressing piece 5 End, forms pressure measurement cavity;Axially arranged along front casing has cavity;Described liner, ceramic core 4 and outer silk compressing piece 5 are successively It is arranged in cavity.
Preferably, liner is made up of Teflon material.
Preferably, shell also includes cylinder and bonnet, and the first end of described cylinder is connected with the second end of front casing, described Second end of cylinder is connected with the first end of bonnet.
Preferably, front casing, cylinder and bonnet are made up of metal material.
Compared with prior art, the utility model provides pressure sensor, and its corrosion resistance is strong, and high mechanical strength.
Brief description
Fig. 1 is the longitudinal cross-section schematic diagram of the pressure sensor that the utility model first embodiment provides;
Fig. 2 is the decomposing schematic representation of the pressure sensor that the utility model first embodiment provides;
Fig. 3 be the utility model first embodiment provide liner and sealing ring three-dimensional schematic cross-section;
Fig. 4 is the liner of the utility model second embodiment offer and the three-dimensional schematic cross-section of sealing ring.
In figure, 1, front casing 2, corrosion-proof lining 3, viton seal ring 4, ceramic pressure sensor core body 5, outer silk pressure Contact pin 6, sensor nut 7, cylinder 8, bonnet 9, circuit board 10, detecting element wire 11, output line.
Specific embodiment
Below in conjunction with accompanying drawing, the technical solution of the utility model is clearly and completely described it is clear that described Embodiment is a part of embodiment of the utility model, rather than whole embodiments.Based on the embodiment in the utility model, this The every other embodiment that field those of ordinary skill is obtained under the premise of not making creative work, broadly falls into this practicality Novel protected scope.
In description of the present utility model, " " center ", " on ", D score, " vertical ", " water it should be noted that term Flat ", " interior ", the orientation of instruction such as " outward " or position relationship be based on orientation shown in the drawings or position relationship, merely to just In description the utility model and simplification description, rather than the device of instruction or hint indication or element must have specific side Position, with specific azimuth configuration and operation, therefore it is not intended that to restriction of the present utility model.
In description of the present utility model, it should be noted that unless otherwise clearly defined and limited, term " peace Dress ", " setting ", " being connected ", " connection " should be interpreted broadly, for example, it may be being fixedly connected or being detachably connected, Or be integrally connected;Can be to be joined directly together it is also possible to be indirectly connected to by intermediary, can also be two element internals Connection, for the ordinary skill in the art, can understand tool in the utility model for the above-mentioned term with concrete condition Body implication.
First embodiment
Fig. 1 is the longitudinal cross-section schematic diagram of the pressure sensor that the utility model first embodiment provides;Fig. 2 is this practicality The decomposing schematic representation of the pressure sensor that new ground two embodiment provides;Fig. 3 is that the utility model first embodiment provides Liner and sealing ring three-dimensional schematic cross-section, as Figure 1-3, the pressure sensing that the utility model first embodiment provides Device includes ceramic core 4, liner 2, fluorine rubber ring 3 and outer silk compressing piece 5, and in the utility model, ceramic core is preferably cake Shape, it has the first circular surfaces and second circular surfaces corresponding with the first disc;Described liner 2 has first end and second End, in the second end setting fluted 202 of liner, along the axially arranged through hole 201 having for importing detected fluid of liner, institute State through hole 201 to connect with groove 202, in first embodiment, liner preferably includes two and be sequentially connected to connect or integral part of First cylinder 203 and the second cylinder 204, the first cylindrical diameter is less than the second cylindrical diameter, the first cylinder There is first end and the second end, the second cylinder has first end and the second end, the first cylindrical second end and the second cylinder The first end of body is connected, the second cylindrical second end setting groove 202, and described groove 202 is preferably patty, its diameter It is slightly less than the diameter of the second cylinder 204;Axis along the first cylinder 203 and the second cylinder 204 is provided with guide hole 201; Fluorine rubber ring 3 is annular, and the second cylinder diameter that its external diameter is more than or equal to liner is identical, and internal diameter is more than or equal to The diameter of groove 202;The diameter of ceramic core 4 is identical with the second cylinder 204 diameter of liner;Outer silk compressing piece 5 is cake Shape, its diameter is identical with the second cylinder diameter of liner, in it is mainly used in being pressed to ceramic core 4 through fluorine rubber ring 3 On second cylinder the second end of lining, thus forming pressure measurement cavity.In the utility model, liner is preferably by Teflon material system Become.
The pressure sensor of this utility model offer also includes shell, and described shell includes front casing 1, along front casing Axially arranged have cavity, and described cavity is mated with the circumferential profile of liner, and in first embodiment, the cavity in front casing is along axle To section be t type, that is, described cavity includes the first cylindrical cavity and the second cylindrical cavity, the first cylindrical cavity interior Footpath external diameter cylindrical with the first of liner is identical, highly approximate the cylindrical height of liner second, the height of fluorine rubber ring, The height of ceramic core and outer silk compressing piece 5 sum, so by liner, fluorine rubber ring, ceramic core 4 and outer silk compressing piece 5 according to Secondary it is arranged in cavity.
In first example, the profile of front casing preferably includes the first cylindrical shape, hexagonal prism and the second circle being sequentially connected Tubular, their external diameter differs, the largest outside diameter of hexagon.In the utility model, the preferably first columnar external diameter is little In the external diameter of the second cylinder, the external diameter of the second cylinder is less than the external diameter of hexagonal prism.
Shell also includes cylinder 7 and bonnet, and the internal diameter of cylinder approximates the external diameter of the second cylinder, such that it is able to make cylinder First end is enclosed within the second cylinder or is threadeded with the second cylinder.In the utility model, bonnet is preferably also hexagon, The first end of bonnet 8 is connected with the second end of cylinder 7, preferably threaded;Second end of bonnet is provided with wire 11 fairlead. Front casing 1, cylinder 7 and bonnet 8 are made up of metal material, in the utility model, preferably by stainless steel material, highstrenghtpiston (as peek etc.) makes.
In first embodiment, pressure sensor also includes circuit board 9, and described circuit is connected to pottery by signal input line 10 The first surface of porcelain core body 4 and second surface, for being converted into electric signal by the change of detected fluid pressure.Circuit board is arranged Have in cylinder 7, the output line 11 of circuit board is drawn by the wire fairlead at bonnet second end.
Second embodiment
The basic pressure sensor phase that offer is provided with first of pressure sensor that the utility model second embodiment provides With, different is only the structure of liner, as shown in figure 4, the second liner 2 implementing to provide has first end and the second end, Second end setting fluted 202 of liner, along the axially arranged through hole 201 having for importing detected fluid of liner, described logical Hole 201 is connected with groove 202, and in second embodiment, liner preferably includes two and be sequentially connected to connect or integral part of first Cylinder 203 and the second cylinder 204, the first cylindrical diameter is less than the second cylindrical diameter, and the first cylinder has First end and the second end, the second cylinder has first end and the second end, and the first cylindrical second end is cylindrical with second First end is connected, the second cylindrical second end central authorities setting fluted 202, and the radial section of described groove 202 is isosceles Trapezoidal, the diameter of groove 202 the top is slightly less than the diameter of the second cylinder 204, and more than the diameter gone up most;In the second cylinder Second end of body, groove 202 be circumferentially provided with cannelure 205, it is used for embedding fluorine rubber ring 3;Along the first cylinder 203 He The axis of the second cylinder 204 is provided with guide hole 201;Fluorine rubber ring 3 is annular, and its external diameter is more than or equal to the of liner Two cylinder diameters are identical, and internal diameter is more than or equal to the diameter of groove 202, during assembling, can just be embedded into cannelure 205 In;The diameter of ceramic core 4 is identical with the second cylinder 204 diameter of liner.
In the utility model, the prismatic parts in front casing and bonnet can also be other forms, such as cylindrical, triangular prism Shape, four prism type, pentagonal prism shape etc..The pressure sensor that the utility model provides also includes nut 6, and it is used for detected fluid Conduit be connected to the fluid introducing port of front casing.
The utility model provide pressure sensor due to employing the liner of elastomeric material, in particular by Teflon The liner of material improves antiseptic property, can bear the corrosion of strong acid and strong base under 250 degree of high temperature;The utility model carries simultaneously For pressure sensor due to employing metal shell, especially be rust outer steel shell, this improves sensor bears pressure (at least in more than 10mpa), in addition metal shell detecting element and circuit sealing are internally also enabled external interference signals Shielding.
Above in association with accompanying drawing, of the present utility model operation principle is described in detail.But those of ordinary skill in the art It should be understood that specification is only for explaining claims.But protection domain of the present utility model is not limited to specification. Any those familiar with the art in the technical scope that the utility model discloses, the change that can readily occur in or Replace, all should cover within protection domain of the present utility model.Therefore, protection domain of the present utility model should be wanted with right The protection domain seeking book is defined.

Claims (4)

1. a kind of corrosion pressure sensor, it includes ceramic core (4), outer silk compressing piece (5) and shell it is characterised in that outer Shell includes front casing, and described pressure sensor also includes liner (2), and described liner has first end and the second end, in liner Second end setting is fluted, and along the axially arranged through hole having for importing detected fluid of liner, described through hole is connected with groove; Ceramic core (4) is pressed on the second end of liner by described outer silk compressing piece (5), forms pressure measurement cavity;Axial direction along front casing It is provided with cavity;Described liner, ceramic core (4) and outer silk compressing piece (5) are successively set in cavity.
2. corrosion pressure sensor according to claim 1 is it is characterised in that liner is made up of Teflon material.
3. corrosion pressure sensor according to claim 2 is it is characterised in that shell also includes cylinder and bonnet, described The first end of cylinder is connected with the second end of front casing, and the second end of described cylinder is connected with the first end of bonnet.
4. corrosion pressure sensor according to claim 3 is it is characterised in that front casing, cylinder and bonnet are by metal material Material is made.
CN201620699457.0U 2016-07-06 2016-07-06 Anticorrosive pressure sensor Active CN205909971U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201620699457.0U CN205909971U (en) 2016-07-06 2016-07-06 Anticorrosive pressure sensor

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201620699457.0U CN205909971U (en) 2016-07-06 2016-07-06 Anticorrosive pressure sensor

Publications (1)

Publication Number Publication Date
CN205909971U true CN205909971U (en) 2017-01-25

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CN201620699457.0U Active CN205909971U (en) 2016-07-06 2016-07-06 Anticorrosive pressure sensor

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017787A (en) * 2016-07-06 2016-10-12 济南海能仪器股份有限公司 Anticorrosion pressure transducer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106017787A (en) * 2016-07-06 2016-10-12 济南海能仪器股份有限公司 Anticorrosion pressure transducer

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Address after: 250101 4th floor, building 1, block A3, Hanyu Jinggu, 7000 Jingshi Road, high tech Zone, Jinan City, Shandong Province

Patentee after: Haineng Future Technology Co.,Ltd.

Address before: 250101 4th floor, building 1, block A3, Hanyu Jinggu, 7000 Jingshi Road, high tech Zone, Jinan City, Shandong Province

Patentee before: JINAN HANON INSTRUMENTS Co.,Ltd.