CN202255540U - Liquid level transducer - Google Patents
Liquid level transducer Download PDFInfo
- Publication number
- CN202255540U CN202255540U CN2011200567837U CN201120056783U CN202255540U CN 202255540 U CN202255540 U CN 202255540U CN 2011200567837 U CN2011200567837 U CN 2011200567837U CN 201120056783 U CN201120056783 U CN 201120056783U CN 202255540 U CN202255540 U CN 202255540U
- Authority
- CN
- China
- Prior art keywords
- fluid level
- level transmitter
- diffuse
- housing
- cutting ferrule
- 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.)
- Expired - Lifetime
Links
- 239000007788 liquid Substances 0.000 title abstract description 8
- 238000007789 sealing Methods 0.000 claims abstract description 25
- 239000012530 fluid Substances 0.000 claims description 29
- 210000004907 gland Anatomy 0.000 claims description 6
- XUIMIQQOPSSXEZ-UHFFFAOYSA-N Silicon Chemical compound [Si] XUIMIQQOPSSXEZ-UHFFFAOYSA-N 0.000 abstract 3
- 239000000945 filler Substances 0.000 abstract 3
- 229910052710 silicon Inorganic materials 0.000 abstract 3
- 239000010703 silicon Substances 0.000 abstract 3
- 238000009792 diffusion process Methods 0.000 abstract 2
- 238000009434 installation Methods 0.000 description 3
- 238000003466 welding Methods 0.000 description 3
- 230000000694 effects Effects 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 229920000459 Nitrile rubber Polymers 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000007613 environmental effect Effects 0.000 description 1
- 238000007689 inspection Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005272 metallurgy Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 229910052755 nonmetal Inorganic materials 0.000 description 1
- 230000000750 progressive effect Effects 0.000 description 1
- 238000012797 qualification Methods 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
Images
Landscapes
- Measuring Fluid Pressure (AREA)
Abstract
The utility model discloses a liquid level transmitter, including a sealed body, an amplifier circuit, a circuit compensating plate and a diffusion silicon sensing element, amplifier circuit connects one and stretches out the wire outside the casing, diffusion silicon sensing element sets firmly in the casing, and sealed body includes: a housing; the conical upper cover is fixedly connected with one side of the shell and comprises a conical end; the clamping sleeve sealing part is connected with the conical end in a sealing mode, and one end of the lead penetrates through the clamping sleeve sealing part and extends out of the sealing body; the diffused silicon sensitive element is embedded in the filler neck; and the detachable end cover is connected with the filler neck. Adopt the utility model discloses a liquid level changer adopts the cutting ferrule sealed in the department of being qualified for the next round of competitions, and is sealed safe, reliable, uses strong operability, simple to operate. Additionally, the utility model discloses a detachable end cover is connected with filler pipe mouth, and it is convenient to dismantle, can practice thrift the plenty of time when overhauing the operation.
Description
Technical field
The utility model relates to a kind of liquid level proving installation, particularly a kind of fluid level transmitter.
Background technology
Fluid level transmitter is liquid level gauge again, is a kind of pressure transducer of measuring liquid level.It is based on the proportional principle of height of the fluid pressure of surveying and this liquid, promptly adopt diffuse si sensitive element or ceramic condenser presser sensor sensor, convert static pressure into electric signal, revise with linear through temperature compensation again, change into the standard electric signal.Fluid level transmitter is adaptable across the level gauging of the various media of systems such as petrochemical complex, metallurgy, electric power, pharmacy, water supply and sewage, environmental protection and industry.
Yet existing fluid level transmitter complex structure usually, is the sealing of being made up of a line ball nut and an O-ring seal through two groups in the sealing of lead outlet part, through twice press seal realization.Therefore, during assembling, existing fluid level transmitter is very high to the accuracy requirement of right alignment, and operation is very time-consuming.And, in case same eccentric shaft the time takes place in assembling, then very easily produce dislocation.Then can little leakage occur during use, reduce the qualification rate of product at diffuse si sensitive element place.
In addition, the diffuse si sensitive element in the existing fluid level transmitter is installed in the seal body of fluid level transmitter through a pressure inlet.Because diffuse si sensitive element and pressure inlet be for being fixedly connected, when product breaks down when needing test, can't take away pressure inlet the diffuse si sensitive element is observed, so this to overhaul ten minutes when just making existing fluid level transmitter debugging inconvenient.
The utility model content
The utility model technical matters to be solved is that the defective of sealing difference provides a kind of fluid level transmitter that convenient and good sealing effect are installed for the fluid level transmitter that overcomes prior art exists assembling loaded down with trivial details.
The utility model solves above-mentioned technical matters through following technical proposals: a kind of fluid level transmitter, and it comprises: a seal body, and place an amplifying circuit, a circuit compensation plate and the diffuse si sensitive element in the said seal body; Wherein, Said amplifying circuit connects a lead, and said lead stretches out outside the said housing, and said diffuse si sensitive element is fixedly arranged in the said housing; Its characteristics are that said seal body comprises:
One housing;
One with the affixed taper loam cake of said housing one side, said taper loam cake comprises an awl end;
The one cutting ferrule sealing that is tightly connected with the awl end of said taper loam cake, an end of said lead is arranged in said cutting ferrule sealing and stretches out outside the said seal body;
One with the affixed pressure inlet of said housing opposite side, said diffuse si sensitive element is embedded in the said pressure inlet;
The one detachable end cap that is connected with said pressure inlet.
Preferably, said diffuse si sensitive element is a diffuse si core body.
Preferably, said cutting ferrule sealing comprises:
One is embedded at the O-ring seal in the said awl end;
Be embedded in the said awl end and coat the cutting ferrule of said O-ring seal; And
One is located at the outer gland nut of said cutting ferrule, and said gland nut coats said awl end.
Preferably, said pressure inlet comprises one first groove and one second groove, and said diffuse si core body is embedded in said first groove, and said detachable end cap is embedded in said second groove.
Preferably, the inwall of said second groove is provided with internal thread.
Preferably, said detachable end cap is provided with and the corresponding male connection of said internal thread.
Preferably, also be provided with a dividing busing in the said housing.
In the utility model, but above-mentioned optimum condition combination in any on the basis that meets this area general knowledge promptly gets each preferred embodiments of the utility model.
The positive progressive effect of the utility model is:
1, the cutting ferrule sealing is adopted in the outlet of the utility model, and sealingly secure, reliable uses strong operability, and is easy for installation.
2, the utility model adopts detachable end cap to be connected with pressure inlet, not only when inspection operation, can practice thrift the plenty of time, and good airproof performance, dependability is high.
3, the utility model also is equipped with a dividing busing, the high temperature in the time of can avoiding welding like this in housing.
Description of drawings
Fig. 1 is the structure semisectional view of the fluid level transmitter of the utility model preferred embodiment.
Fig. 2 is the three-dimensional exploded view of the fluid level transmitter of the utility model preferred embodiment.
Embodiment
Provide the utility model preferred embodiment below in conjunction with accompanying drawing, to specify the technical scheme of the utility model.
As depicted in figs. 1 and 2, the seal body of the fluid level transmitter of the utility model by a housing 6, one and the taper loam cake that is tightly connected of an end of housing 65, one and the affixed cutting ferrule sealing of taper loam cake 5, a pressure inlet 10, a detachable end cap 11 form.
Wherein, taper loam cake 5 comprises an awl end, and the awl end of cutting ferrule sealing and taper loam cake 5 is tightly connected, and lead 1 passes outside the housing 6 that the cutting ferrule sealing stretches out seal body.
The seal body of the fluid level transmitter of the utility model is built-in with a circuit compensation plate 9, and a circuit compensation plate 9 and a diffuse si sensitive element 12 are electrically connected such as a diffuse si core body.Circuit compensation plate 9 is electrically connected with a magnification circuit plate 8 simultaneously.Magnification circuit plate 8 connects lead 1.
The amplifying circuit of the utility model, circuit compensation plate portion; And diffuse si sensitive element and circuit compensation plate electrical connection section are divided into prior art; Promptly; Can adopt known amplifying circuit of the prior art, circuit compensation plate to be electrically connected with the diffuse si sensitive element, this part is not the inventive point place of the utility model, does not give unnecessary details at this.
In order to improve safety, the reliability of fluid level transmitter sealing, the cutting ferrule sealing of the outlet of the utility model adopts the nonmetal cutting ferrule sealing of combined type.Preferably, the cutting ferrule sealing of the utility model comprises: a cutting ferrule 3, an O-ring seal 4 and a gland nut 2.Wherein, cutting ferrule 3 coats O-ring seal 4, and O-ring seal 4 is embedded in the awl end of taper loam cake 5, and gland nut 2 is located at outside the cutting ferrule 3 and from outside cutting ferrule 3 is coated of awl end and is compressed, thus the compacting sealing of realization outlet.
Preferably, the cutting ferrule 3 in the present embodiment can be selected the cutting ferrule of polytetrafluoroethylmaterial material for use, and O-ring seal 4 can adopt the nitrile rubber circle.And, owing to adopt the cutting ferrule sealing, only need once sealing, can reach leakproof seal effect of the prior art, therefore easy for installation, make the sealingly secure of fluid level transmitter, reliability improve greatly.
Pressure inlet 10 docks with housing 6, is provided with one first groove and one second groove in the pressure inlet 10.The diffuse si core body is embedded in first groove of pressure inlet 10, and detachable end cap 11 then is embedded in second groove of pressure inlet 10.
Preferably, for the diffuse si core body is sealed in the housing 6, the safety when guaranteeing to use is provided with internal thread in second groove.The detachable end cap 11 of the utility model can for one have a male connection thread ending cover.The internal thread of the external thread of thread ending cover joint and second groove is suitable.
Further, being connected to of the utility model outlet part is welded to connect.Preferably, can adopt laser bonding, therefore shorten the structure length of product greatly.This method for laser welding is not given unnecessary details at this originally as prior art.
In addition, the utility model also is equipped with a dividing busing 7, the high temperature in the time of can avoiding welding like this in housing 6.
In addition, because detachable end cap 11 is detachable being threaded with pressure inlet 10, like this; When assembling fluid level transmitter, when carrying out the maintenance debugging before the product export, in case go wrong; Can back out the detachable end cap at any time, the diffuse si core body in the housing is observed, in time investigate fault.Therefore, the fluid level transmitter of the utility model also is very easy to the debugging and the maintenance of fluid level transmitter.
Though more than described the embodiment of the utility model, it will be understood by those of skill in the art that these only illustrate, the protection domain of the utility model is limited appended claims.Those skilled in the art can make numerous variations or modification to these embodiments under the prerequisite of principle that does not deviate from the utility model and essence, but these changes and modification all fall into the protection domain of the utility model.
Claims (7)
1. fluid level transmitter, it comprises: a seal body, and place an amplifying circuit, a circuit compensation plate and the diffuse si sensitive element in the said seal body; Wherein, Said amplifying circuit connects a lead, and said lead stretches out outside the said housing, and said diffuse si sensitive element is fixedly arranged in the said housing; It is characterized in that said seal body comprises:
One housing;
One with the affixed taper loam cake of said housing one side, said taper loam cake comprises an awl end;
The one cutting ferrule sealing that is tightly connected with the awl end of said taper loam cake, an end of said lead is arranged in said cutting ferrule sealing and stretches out outside the said seal body;
One with the affixed pressure inlet of said housing opposite side, said diffuse si sensitive element is embedded in the said pressure inlet;
The one detachable end cap that is connected with said pressure inlet.
2. fluid level transmitter as claimed in claim 1 is characterized in that, said diffuse si sensitive element is a diffuse si core body.
3. fluid level transmitter as claimed in claim 2 is characterized in that, said cutting ferrule sealing comprises:
One is embedded at the O-ring seal in the said awl end;
One is embedded in the said awl end and coats the cutting ferrule of said O-ring seal; And
One is located at the outer gland nut of said cutting ferrule, and said gland nut coats said awl end.
4. fluid level transmitter as claimed in claim 3 is characterized in that, said pressure inlet comprises one first groove and one second groove, and said diffuse si core body is embedded in said first groove, and said detachable end cap is embedded in said second groove.
5. fluid level transmitter as claimed in claim 4 is characterized in that the inwall of said second groove is provided with internal thread.
6. fluid level transmitter as claimed in claim 5 is characterized in that, said detachable end cap be provided with one with the corresponding male connection of said internal thread.
7. like any described fluid level transmitter in the claim 1 to 6, it is characterized in that, also be provided with a dividing busing in the said housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200567837U CN202255540U (en) | 2011-03-04 | 2011-03-04 | Liquid level transducer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200567837U CN202255540U (en) | 2011-03-04 | 2011-03-04 | Liquid level transducer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202255540U true CN202255540U (en) | 2012-05-30 |
Family
ID=46116767
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200567837U Expired - Lifetime CN202255540U (en) | 2011-03-04 | 2011-03-04 | Liquid level transducer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202255540U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200461A (en) * | 2011-03-04 | 2011-09-28 | 上海盛迪传感技术有限公司 | Liquid level transmitter |
-
2011
- 2011-03-04 CN CN2011200567837U patent/CN202255540U/en not_active Expired - Lifetime
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102200461A (en) * | 2011-03-04 | 2011-09-28 | 上海盛迪传感技术有限公司 | Liquid level transmitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20120530 |
|
| CX01 | Expiry of patent term |