CN206862453U - A kind of segment type capacitance liquid level meter - Google Patents
A kind of segment type capacitance liquid level meter Download PDFInfo
- Publication number
- CN206862453U CN206862453U CN201720601152.6U CN201720601152U CN206862453U CN 206862453 U CN206862453 U CN 206862453U CN 201720601152 U CN201720601152 U CN 201720601152U CN 206862453 U CN206862453 U CN 206862453U
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- China
- Prior art keywords
- pipe
- merogenesis
- number section
- low
- liquid level
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- 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 - Fee Related
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- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
Abstract
A kind of segment type capacitance liquid level meter is the utility model is related to, including central tube, merogenesis pipe, the shielded-plate tube set gradually from inside to outside；Above-mentioned merogenesis pipe includes merogenesis pipe odd number section, merogenesis pipe even number section, odd even section collets and low temperature interval jumper；Above-mentioned central tube forms an electric capacity with merogenesis pipe odd number section, and central tube forms another electric capacity with merogenesis pipe even number section；Odd even section collets are set between merogenesis pipe odd number section and merogenesis pipe even number section；One end ground connection of above-mentioned shielded-plate tube；Low-temperature insulation sleeve pipe is set in the connection sheet of low temperature interval jumper, for solving to easily cause the technical problem of level gauging failure because interval jumper and shielded-plate tube overlap in the prior art.
Description
Technical field
It the utility model is related to Test System for Rocket Engine Test monitoring device, and in particular to a kind of segment type capacitance liquid level meter.
Background technology
Tank fill level parameter is one of Propellant Management and the important parameter of regulation and control during Test System for Rocket Engine Test, especially
The Stability and veracity of the low temperature liquid fuel level gaugings such as p- 196 DEG C of liquid nitrogen, -183 DEG C of liquid oxygen is particularly important.
Conventional liquid level emasuring device is segment type capacitance liquid level meter, and it has liquid level gauge using the method for comparing measurement
There is the ability of compensation and self-correcting, a whole set of flowrate Measurement in Low Temperature system is measured the average discharge of test run steady section liquid oxygen,
And true medium calibration can be carried out to turbine flowmeter.Segment type capacitance liquid level meter is by central tube, merogenesis pipe and shielded-plate tube
And insulating part is fixed and formed with interval support member.Central tube, merogenesis pipe and shielded-plate tube form from inside to outside three with one heart
Ring, central tube and merogenesis tube pitch 5mm or so, merogenesis pipe are 20mm or so with shielding tube pitch.Central tube and each merogenesis pipe
Between with fiber glass epoxy support ring be supported isolation, by liquid level gauge bottom and top between merogenesis pipe and outer shield pipe
Two fiber glass epoxy support block isolation.
The electrode of central tube, odd number section, even number section is led to external container by vessel flange connector respectively, then is become with signal
Send device input to connect, pass through signal transmitting device outputting standard signal.Wherein merogenesis pipe be divided into some odd number sections (the 1st, 3,5,
7 ... sections) and even number section (the 2nd, 4,6,8 ... section), particular number determines as needed.Odd even is set between odd number section and even number section
Save collets.Central tube and each merogenesis pipe can independently form the two poles of the earth of electric capacity, according to two electric capacity its capacitance in parallel etc.
In the principle of two capacitance sums, odd number section and even number section are attached respectively using interval jumper, such odd number
Section and central tube form an electric capacity, and even number section and central tube form an electric capacity.When liquid passes through merogenesis pipe odd number section, very
The capacitance variation of several sections of formation, when liquid passes through merogenesis pipe even number section, the capacitance variation of even number section formation.Pass through distal end
After transmitter carries out signal transacting to two kinds of electric capacity, the waveform of formation rule, the liquid in container is may determine that according to this waveform
Body fluid position.The effect of shielded-plate tube is to prevent liquid boiling so as to cause level gauging unstable.One end ground connection of shielded-plate tube, shielding
Pipe is from stainless steel tube thick 2mm.
The interval jumper of current traditional segment type liquid level gauge is generally bridged using copper sheet, and interval jumper both ends are with stainless
Steel screw is connected with merogenesis pipe.Because, apart from very little, only about 20mm or so, jumper is with shielding between merogenesis pipe and shielded-plate tube
Between pipe without physics quarantine measures and the length of merogenesis pipe and shielded-plate tube it is very long.When liquid level gauge vibration or use for a long time cause center
When pipe and shielded-plate tube occur bending and deformation, cause to be spaced jumper and shielded-plate tube overlap joint and cause short circuit, so as to easily cause liquid level
Measurement failure.
Utility model content
The purpose of this utility model is for because interval jumper and shielded-plate tube overlap, easily causing liquid level survey in the prior art
A kind of the problem of amount failure, there is provided segment type capacitance liquid level meter.
To achieve the above object, technical scheme provided by the utility model is：A kind of segment type capacitance liquid level meter, including by
Central tube, merogenesis pipe, the shielded-plate tube set gradually from inside to outside；It is characterized in that above-mentioned merogenesis pipe includes merogenesis pipe odd number
Section, merogenesis pipe even number section, odd even section collets and low temperature interval jumper；Above-mentioned central tube forms one with merogenesis pipe odd number section
Electric capacity, central tube form another electric capacity with merogenesis pipe even number section；Set between merogenesis pipe odd number section and merogenesis pipe even number section strange
Even section collets；One end ground connection of above-mentioned shielded-plate tube；Above-mentioned low temperature interval jumper includes connection sheet and low-temperature insulation sleeve pipe, even
Low-temperature insulation sleeve pipe is set in contact pin.
Further, in order to which low temperature interval jumper and shielding pipe insulation is effectively ensured, low-temperature insulation sleeve pipe can be adopted
With the low-temperature insulation sleeve pipe made of low temperature resistant, good insulating polytetrafluoroethylene (PTFE).
Further, low-temperature insulation casing diameter φ be 10mm, thickness 1mm.
Further, in order that low-temperature insulation sleeve pipe is in close contact with connection sheet, jumper and shielded-plate tube are more effectively made
Isolation, in the crimping of the oriented arc bending of the end set of low-temperature insulation sleeve pipe.
Further, in order that low-temperature insulation sleeve pipe is brought into close contact with merogenesis pipe, set in the middle part of the outer wall of low-temperature insulation sleeve pipe
It is set to the arcwall face of evagination.
Further, in order to improve the bonding strength of connection sheet and electric conductivity, the connection sheet of low temperature interval jumper is adopted
It is made of silver-plated brass material.
The utility model compared with prior art the advantages of be：
The 1st, low-temperature insulation sleeve pipe is set in the connection sheet of low temperature interval jumper it is possible to prevente effectively from low temperature interval jumper
Overlapped with shielded-plate tube and cause short circuit；
2nd, the polytetrafluoroethylene (PTFE) low-temperature insulation sleeve pipe that is set in low temperature interval jumper connection sheet is low temperature resistant, good insulating,
It can effectively ensure that low temperature interval jumper and shielding pipe insulation；
3rd, thickness is that 1mm teflon insulation sleeve pipe ensure that the intensity of low-temperature insulation sleeve pipe；
4th, there is crimping in the end set of low-temperature insulation sleeve pipe, low-temperature insulation sleeve pipe is in close contact with connection sheet, can
More effectively jumper is set to isolate with shielded-plate tube；
5th, the arcwall face of evagination is may be configured as in the middle part of the outer wall of low-temperature insulation sleeve pipe, makes low-temperature insulation sleeve pipe and merogenesis pipe tight
Closely connected conjunction；
6th, the connection sheet of silver-plated brass material can be used by being spaced jumper, improve the bonding strength and electric conductivity of connection sheet
Energy.
Brief description of the drawings
Fig. 1 is the partial structural diagram of segment type capacitance liquid level meter embodiment；
Fig. 2 is the partial structural diagram of merogenesis pipe in segment type capacitance liquid level meter shown in Fig. 1.
Each label is described as follows in figure：
1-central tube；
2-merogenesis pipe；21-merogenesis pipe odd number section；22-merogenesis pipe even number section；23-low temperature interval jumper；231—
Low-temperature insulation sleeve pipe；232-connection sheet；24-odd even section collets；
3-shielded-plate tube.
Embodiment
The utility model is described in further detail with reference to the accompanying drawings and examples.
A kind of segment type capacitance liquid level meter as shown in Figure 1 and Figure 2, including set gradually from inside to outside central tube 1, point
Save pipe 2, shielded-plate tube 3；Merogenesis pipe 2 is included between merogenesis pipe odd number section 21, merogenesis pipe even number section 22, odd even section collets 24 and low temperature
Every jumper 23；Central tube 1 forms an electric capacity with merogenesis pipe odd number section 21；Central tube 1 is formed separately with merogenesis pipe even number section 22
One electric capacity；Odd even section collets 24 are set between merogenesis pipe odd number section 21 and merogenesis pipe even number section 22；The one of above-mentioned shielded-plate tube 3
End ground connection；The connection sheet 232 of low temperature interval jumper 23 is made up of silver-plated brass；Above-mentioned low temperature interval jumper 23 includes connection
Piece 232 and low-temperature insulation sleeve pipe 231, the low-temperature insulation sleeve pipe 231 made of polytetrafluoroethylene (PTFE) is provided with connection sheet 232；It is low
It is the arcwall face of evagination in the middle part of the outer wall of warm insulating sleeve 231.
When in use, the electrode of its central tube 1, merogenesis pipe 2 and shielded-plate tube 3 passes through vessel flange to segment type capacitance liquid level meter
Connector is connected with signal transmitting device.
Claims (6)
1. a kind of segment type capacitance liquid level meter, including central tube (1), merogenesis pipe (2), the shielded-plate tube set gradually from inside to outside
(3)；
It is characterized in that：The merogenesis pipe (2) includes merogenesis pipe odd number section (21), merogenesis pipe even number section (22), the insulation of odd even section
Block (24) and low temperature interval jumper (23)；
The central tube (1) forms an electric capacity, central tube (1) and merogenesis pipe even number section (22) structure with merogenesis pipe odd number section (21)
Into another electric capacity；Odd even section collets (24) are set between merogenesis pipe odd number section (21) and merogenesis pipe even number section (22)；It is described
One end ground connection of shielded-plate tube (3)；Low temperature interval jumper (23) includes connection sheet (232) and low-temperature insulation sleeve pipe (231), described
Low-temperature insulation sleeve pipe (231) is set in connection sheet (232).
A kind of 2. segment type capacitance liquid level meter according to claim 1, it is characterised in that：The low-temperature insulation sleeve pipe
(231) it is made up of polytetrafluoroethylene (PTFE).
A kind of 3. segment type capacitance liquid level meter according to claim 2, it is characterised in that：The low-temperature insulation sleeve pipe
(231) diameter phi be 10mm, thickness 1mm.
A kind of 4. segment type capacitance liquid level meter according to any one of claims 1 to 3, it is characterised in that：The low temperature is exhausted
The end set of edge sleeve pipe (231) has crimping.
A kind of 5. segment type capacitance liquid level meter according to claim 4, it is characterised in that：The low-temperature insulation sleeve pipe
(231) it is the arcwall face of evagination in the middle part of outer wall.
A kind of 6. segment type capacitance liquid level meter according to claim 5, it is characterised in that：Low temperature interval jumper
(23) connection sheet (232) is made of silver-plated brass material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601152.6U CN206862453U (en) | 2017-05-26 | 2017-05-26 | A kind of segment type capacitance liquid level meter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720601152.6U CN206862453U (en) | 2017-05-26 | 2017-05-26 | A kind of segment type capacitance liquid level meter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206862453U true CN206862453U (en) | 2018-01-09 |
Family
ID=60824481
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720601152.6U Expired - Fee Related CN206862453U (en) | 2017-05-26 | 2017-05-26 | A kind of segment type capacitance liquid level meter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206862453U (en) |
-
2017
- 2017-05-26 CN CN201720601152.6U patent/CN206862453U/en not_active Expired - Fee Related
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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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180109 Termination date: 20190526 |