CN206756263U - A kind of capacitance liquid level meter of simple and stable - Google Patents

A kind of capacitance liquid level meter of simple and stable Download PDF

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Publication number
CN206756263U
CN206756263U CN201720313352.1U CN201720313352U CN206756263U CN 206756263 U CN206756263 U CN 206756263U CN 201720313352 U CN201720313352 U CN 201720313352U CN 206756263 U CN206756263 U CN 206756263U
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China
Prior art keywords
housing
liquid level
stud
outside
seal convexity
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Active
Application number
CN201720313352.1U
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Chinese (zh)
Inventor
谢铭
李建军
聂飞
徐杰明
彭亮亮
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Cnsic Jiangxi Lantai Chemical Co Ltd
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Cnsic Jiangxi Lantai Chemical Co Ltd
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Priority to CN201720313352.1U priority Critical patent/CN206756263U/en
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Abstract

The utility model discloses a kind of capacitance liquid level meter of simple and stable, the housing of hollow cavity structure including insulation, the bottom of housing is round and smooth ellipsoidal structure, conductive stud is provided with enclosure interior, the lower end of stud is stretched out the bottom of housing and is flush with round and smooth ellipsoidal structure, the protection cushion of insulation is provided with the outside of housing, the top connection corresponding with outside seal convexity of the protection cushion, the outside seal convexity is thick middle, the thin cyclic structure of upper and lower ends, the top connection corresponding with positioning annulus of the outside seal convexity, the external diameter for positioning annulus is more than the maximum outside diameter of outside seal convexity, signal processing apparatus is correspondingly provided with the top of housing, the signal processing apparatus passes through conductor cable electrical connection corresponding with stud.The utility model simple and stable structure, easy to install, outside seal convexity is used to seal liquid level gauge and testing container, and positioning annulus prevents liquid level gauge from dropping, and repair and maintenance is convenient.

Description

A kind of capacitance liquid level meter of simple and stable
Technical field
Liquid level gauge field is the utility model is related to, especially a kind of capacitance liquid level meter of simple and stable.
Background technology
Capacitance liquid level meter is to measure the special instrument of liquid level height using the change of measurement electric capacity.It is former according to capacitive sensing Reason, when the height change of measured medium leaching and measuring electrode, cause and changed as the electric capacity of sensor, by detecting electricity The change of capacitance, can obtain the height of liquid level, and capacitance liquid level meter typically carries out liquid level using column type capacitance sensor Measurement.
Utility model content
A kind of the defects of in order to overcome in the prior art, there is provided capacitance liquid level meter of simple and stable.
The utility model is realized by following proposal:
A kind of capacitance liquid level meter of simple and stable, include the housing of the hollow cavity structure of insulation, the bottom of the housing For round and smooth ellipsoidal structure, conductive stud is provided with the enclosure interior, the bottom of housing is stretched out in the lower end of the stud And it is flush with round and smooth ellipsoidal structure, the protection cushion of insulation is provided with the outside of the housing, the protection is slow The top connection corresponding with outside seal convexity of layer is rushed, the outside seal convexity is thick middle, the ring-type knot that upper and lower ends are thin Structure, the top connection corresponding with positioning annulus of the outside seal convexity, the external diameter of the positioning annulus are convex more than outside sealing The maximum outside diameter risen, signal processing apparatus is correspondingly provided with the top of the housing, the signal processing apparatus passes through conductor wire Cable electrical connection corresponding with stud.
The housing is divided into upper shell and lower house, and internal thread is provided with the top of the lower house, the upper shell Bottom is provided with external screw thread, external screw thread and the lower house internal thread Corresponding matching of the upper shell;The outside seal convexity and fixed Circle of position ring is each provided at the outside of lower house.
Inwardly projecting fastening thread is provided with the inwall of the housing, is provided with the surface of the stud and fastening thread The stud screw thread to match, the fastening thread match with stud screw thread.
Inner seal rings are provided between the stud and housing, the inner seal rings are located at close to the position of housing bottom Put.
The beneficial effects of the utility model are:
1. a kind of capacitance liquid level meter of simple and stable of the utility model, simple and stable structure and compact, pass through upper casing The setting of body and lower house, and be connected through a screw thread, the stud of conduction is arranged in housing, need to only be beaten on testing container Hole, liquid level gauge is mounted in the bore, it is easy to install, and the ring-type that outside seal convexity thick middle, upper and lower ends are thin Structure, it is stuck in hole, play a part of sealing;
2. a kind of capacitance liquid level meter of simple and stable of the utility model, the external diameter for positioning annulus is more than outside seal convexity Maximum outside diameter, prevent liquid level gauge from dropping, and when needing to overhaul maintenance, it is only necessary to hold upper shell and extract upwards, operate It is convenient and simple;
3. a kind of capacitance liquid level meter of simple and stable of the utility model, by setting inner seal rings, prevents testing container Interior poisonous, corrosive gas enters inside liquid level gauge, it is ensured that liquid level gauge is safely and steadily run;
4. a kind of capacitance liquid level meter of simple and stable of the utility model, when measuring liquid level, without directly being contacted with liquid, adopt , can be effectively anti-interference with non-contact measurement liquid level, and can avoids liquid level gauge from contacting poisonous, corrosive liquids, improves liquid level The service life of meter.
Brief description of the drawings
Fig. 1 is a kind of structural representation of the capacitance liquid level meter of simple and stable of the utility model;
In figure:1 is housing, and 11 be upper shell, and 12 be lower house, and 2 be stud, and 3 be buffer protection layer, and 4 be outside sealing Projection, 5 be positioning annulus, and 6 be signal processing apparatus, and 7 be conductor cable, and 8 be fastening thread, and 9 be inner seal rings.
Embodiment
The utility model preferred embodiment is further illustrated with reference to Fig. 1:
A kind of capacitance liquid level meter of simple and stable, include the housing 1 of the hollow cavity structure of insulation, the bottom of the housing 1 Portion is round and smooth ellipsoidal structure, and conductive stud 2 is provided with inside the housing 1, and housing 1 is stretched out in the lower end of the stud 2 Bottom and be flush with round and smooth ellipsoidal structure, the outside of the housing 1 be provided with insulation protection cushion 3, institute The top connection corresponding with outside seal convexity 4 of protection cushion 3 is stated, the outside seal convexity 4 is thick middle, upper and lower ends Thin cyclic structure, the top connection corresponding with positioning annulus 5 of the outside seal convexity 4, the external diameter of the positioning annulus 5 are big In the maximum outside diameter of outside seal convexity 4.The outside seal convexity 4 and positioning annulus 5 are each provided at the outside of lower house 12.
The housing 1 divides for upper shell 11 and lower house 12, is provided with internal thread on the top of the lower house 12, it is described on The bottom of housing 11 is provided with external screw thread, external screw thread and the internal thread Corresponding matching of lower house 12 of the upper shell 11.
Signal processing apparatus 6 is correspondingly provided with the top of the housing 1, the signal processing apparatus 6 passes through conductor cable 7 Electrical connection corresponding with stud 2.
The internal circuit and operation principle of signal processing apparatus 6 are existing known technology, be will not be repeated here.
Inwardly projecting fastening thread 8 is provided with the inwall of the housing 1, is provided with and fastening on the surface of the stud 2 The stud screw thread that screw thread 8 matches, the fastening thread 8 match with stud screw thread.
Fastening thread 8 includes at least two, and in the present embodiment, a fastening thread 8 is arranged on the inwall of lower house 12 Top, another fastening thread 8 are arranged on the bottom of the inwall of lower house 12.
Inner seal rings 9 are provided between the stud 2 and housing 1, the inner seal rings 9 are located at close to the bottom of housing 1 The position in portion.
In actual use, stud 2 is fixed to the inwall of lower house 12 by fastening thread 8 first, as far as possible by stud 2 The opening of bottom and the bottom of lower house 12 coincide, a smooth structure is formed, then by being set on the top of lower house 12 The external screw thread that the bottom of some internal threads and upper shell 11 is provided with mutually screws, and is then placed into the liquid level gauge assembled to be checked In the conductive container of survey.
When mounted, it is slightly less than outside seal convexity 4 most in conductive container overpunch to be detected, the external diameter in hole first The external diameter at thick position, liquid level gauge of the present utility model to be put into hole, outside seal convexity 4 is stuck in hole, plays sealing function, And the external diameter of setting circle ring 5 is much larger than the external diameter in hole, prevent the utility model from dropping, it is necessary to when overhauling maintenance, it is only necessary to Hold upper shell 11 extract upwards, convenient and simple, the utility model is provided with inner seal rings 9, prevent in conductive container it is poisonous, Corrosive gas enters inside liquid level gauge, it is ensured that the utility model is safely and steadily run.
Operation principle of the present utility model is:Capacitance liquid level meter measures the height of liquid level using the change of measurement electric capacity. Inserted by a stud 2 (metal bar) in liquid container (conductive container), a pole of the stud 2 as electric capacity, chamber wall conduct Another pole of electric capacity.Two interelectrode media are liquid and its gas above.Due on the dielectric constant and liquid level of liquid The dielectric constant of gas is different, and the height of liquid level, the detailed process of measurement are measured by the change of two interelectrode capacitances It is existing known technology with data handling procedure, will not be repeated here.
Although more detailed elaboration is done to the technical solution of the utility model and has been enumerated, it will be appreciated that for For those skilled in the art, modification is made to above-described embodiment or uses equivalent alternative solution, this skill to this area Be for art personnel it is clear that on the basis of without departing from the utility model spirit these modifications or improvements, belong to In the scope of the requires of the utility model protection.

Claims (4)

1. a kind of capacitance liquid level meter of simple and stable, include the housing (1) of the hollow cavity structure of insulation, it is characterised in that:Institute The bottom for stating housing (1) is round and smooth ellipsoidal structure, and conductive stud (2), the stud are provided with inside the housing (1) (2) lower end is stretched out the bottom of housing (1) and is flush with round and smooth ellipsoidal structure, is set in the outside of the housing (1) There is the protection cushion (3) of insulation, the top of the protection cushion (3) is corresponding with outside seal convexity (4) to be connected, described outer The cyclic structure that portion's seal convexity (4) is thick middle, upper and lower ends are thin, the top of the outside seal convexity (4) and setting circle Ring (5) is corresponding to be connected, and the external diameter of the positioning annulus (5) is more than the maximum outside diameter of outside seal convexity (4), in the housing (1) top is correspondingly provided with signal processing apparatus (6), and the signal processing apparatus (6) passes through conductor cable (7) and stud (2) Corresponding electrical connection.
A kind of 2. capacitance liquid level meter of simple and stable according to claim 1, it is characterised in that:The housing (1) is divided into Upper shell (11) and lower house (12), internal thread, the bottom of the upper shell (11) are provided with the top of the lower house (12) Provided with external screw thread, external screw thread and lower house (12) internal thread Corresponding matching of the upper shell (11);The outside seal convexity (4) and positioning annulus (5) is each provided at the outside of lower house (12).
A kind of 3. capacitance liquid level meter of simple and stable according to claim 1, it is characterised in that:In the housing (1) Inwall is provided with inwardly projecting fastening thread (8), and the titanium to match with fastening thread (8) is provided with the surface of the stud (2) Rod screw thread, the fastening thread (8) match with stud screw thread.
A kind of 4. capacitance liquid level meter of simple and stable according to claim 1, it is characterised in that:The stud (2) with Inner seal rings (9) are provided between housing (1), the inner seal rings (9) are located at close to the position of housing (1) bottom.
CN201720313352.1U 2017-03-28 2017-03-28 A kind of capacitance liquid level meter of simple and stable Active CN206756263U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201720313352.1U CN206756263U (en) 2017-03-28 2017-03-28 A kind of capacitance liquid level meter of simple and stable

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201720313352.1U CN206756263U (en) 2017-03-28 2017-03-28 A kind of capacitance liquid level meter of simple and stable

Publications (1)

Publication Number Publication Date
CN206756263U true CN206756263U (en) 2017-12-15

Family

ID=60611329

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201720313352.1U Active CN206756263U (en) 2017-03-28 2017-03-28 A kind of capacitance liquid level meter of simple and stable

Country Status (1)

Country Link
CN (1) CN206756263U (en)

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