CN205333143U - Liquid level measurement instrument - Google Patents
Liquid level measurement instrument Download PDFInfo
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- CN205333143U CN205333143U CN201520958022.9U CN201520958022U CN205333143U CN 205333143 U CN205333143 U CN 205333143U CN 201520958022 U CN201520958022 U CN 201520958022U CN 205333143 U CN205333143 U CN 205333143U
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- bonnet
- laser welding
- mounting groove
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- sealing washer
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Abstract
The utility model relates to a liquid level measurement instrument, including body, sensor base, visor, sensor, hou gai, the cable of being qualified for the next round of competitions, circuit board, clamping ring, sensor base links to each other with body laser welding, and its seam crossing is laser welding point, and the sensor base outer fringe on laser welding point right side is provided with first sealing washer mounting groove, installs O type sealing washer in the first sealing washer mounting groove, the back lid links to each other with body laser welding, and its seam crossing is the 2nd laser welding point, and the left back lid outer fringe of the 2nd laser welding point is provided with second sealing washer mounting groove, installs O type sealing washer in the second sealing washer mounting groove. Adopting the sealing washer sealed with the welding two pass, effectively preventing the corruption and the leakage of medium, the stifled structure of reverse sealed awl effectively protects the clamping ring corroded by the medium, and the equipment space is better with technology.
Description
Technical field
This utility model relates to a kind of oil field development sensor technical field, specifically a kind of liquid level measurer。
Background technology
Level measuring instrument is a kind of instrument conventional in industrial practice, instrument and meter control, is again " liquidometer "。And it is widely used in oil well industry。Liquid level instrument Various Functions in the market, price variance is also relatively larger。Domestic liquidometer main drawback is that first, long-time use dielectric corrosion liquidometer body to cause that body is revealed。Second, structural design is unreasonable, poor sealing performance。3rd, power consumption is high, cannot intelligent protection during the situation such as its control circuit is excessive at voltage, thunderbolt。
Other products on market, adjustment requires over software and carries out, or additional function modules carries out especially, even if there being the button also can only at the low pressing operation of 5VDC, personnel requirement is high, and cost be high, reliability is not high, and port-guard is simple overvoltage method only, or has lightning Protection but bulky。
Utility model content
For above-mentioned situation, this utility model provides a kind of liquid level measurer, and first, body adopts double-channel sealing structure, and O RunddichtringO coordinates the laser welding structure of body and pedestal junction, and what effectively prevent from measuring instrument causes leakage to damage instrument because of dielectric corrosion。Compare single track on traditional market and seal thread connecting mode or the welding of body single track, it is possible to reach to prevent dielectric corrosion, it is prevented that the effect that body is revealed。Second; outlet cable adopts and reversely seals cone blocking structure; compare traditional positive face seal cone blocking structure; this mode packaging technology is simpler; the pressing pressure ring sealing cone blocking is hidden in tubular body, not contact medium, requires not harsh to pressure ring material; and can effectively prevent the corrosion of positive face seal cone blocking structure pressing pressure ring, protect instrument long-term effectiveness。3rd, the intelligent parametric calibration that wiring board adopts ARM7 nuclear control device to be core compensates, with high/low temperature, the technology that system combines, and man-machine interface is processed especially, it is ensured that carries out low-power consumption global function compensation for calibrating errors by serial ports and ensures high accuracy。4th, return to zero reset connection circuit: wherein a line touch-control zeroing, a line touch-control are adjusted full；Two-wire simultaneously touch data recovers function, though adjust error also can in-situ FTIR spectroelectrochemitry manufacturer data, re-start adjustment。Agile adjustment functional module has until the function of 48VDC overvoltage protection simultaneously, and robustness extremely strengthens。Make on-the-spot application without the participation of computer and software and communication interface, reduce project installation side's competency profiling to instrumentation engineering installation personnel, save installation and debugging complexity, reduce personnel demand expense。5th; devise two grades of lightening surge preventings of miniaturization and the overvoltage crowbar of innovation; ensure its compact is light reach international similar level while; power supply and output signal end mouth Anti-surging performance indications reach: GBT17626.5:4 level level; the resistance to pressure energy that simultaneously insulate meets product Standard (500VDC); there is overvoltage, the functions such as mistake flows, anti-reverse simultaneously。
To achieve these goals, the technical solution of the utility model is as follows:
A kind of liquid level measurer, including body, sensor base, protection lid, sensor, bonnet, outlet cable, wiring board, pressure ring, body one end is provided with sensor base, protection lid it is provided with outside sensor base, the body other end is provided with bonnet, outlet cable it is provided through in bonnet, outlet cable is connected by pressure ring compression with bonnet, sensor it is provided with in sensor base, sensors back side is provided with wiring board, described sensor base is connected with body laser weld, its seam crossing is the first Laser Welding contact, sensor base outer rim on the right side of first Laser Welding contact is provided with the first sealing ring mounting groove, in first sealing ring mounting groove, O RunddichtringO is installed；Described bonnet is connected with body laser weld, and its seam crossing is the second Laser Welding contact, and the bonnet outer rim on the left of the second Laser Welding contact is provided with the second sealing ring mounting groove, is provided with O RunddichtringO in the second sealing ring mounting groove。
Also include sealing cone blocking, seal cone blocking and be arranged between pressure ring and bonnet。
Described sealing cone blocking is reversely seal cone blocking structure, and the pressing pressure ring sealing cone blocking is located at inside bonnet。Not contact medium, requires not harsh to pressure ring material, and can effectively prevent the corrosion of positive face seal cone blocking structure pressing pressure ring, protects instrument long-term effectiveness。
Described wiring board is provided with zeroing reset connection circuit, and the touch control line protection being realized 10 ~ 48V by stabilivolt and resistor network realizes the collection that level signal changes。Ensure its compact is light reach international similar level while, power supply and output signal end mouth Anti-surging performance indications reach: GBT17626.5:4 level level, and the resistance to pressure energy that simultaneously insulate meets product Standard (500VDC), has overvoltage simultaneously, cross stream, the function such as anti-reverse。
Described wiring board is provided with two grades of lightening surge preventings and overvoltage crowbar; selecting and while the selection of follow-up PPTC and TVS realizes that compact is light and reach international similar level by GDT device; power supply and output signal end mouth Anti-surging performance indications reach: GBT17626.5:4 level level; the resistance to pressure energy that simultaneously insulate meets product Standard (500VDC); there is overvoltage simultaneously; cross stream, the function such as anti-reverse。
The utility model has the advantages that: adopt sealing ring and weld double sealing, can effectively prevent corrosion and the leakage of medium, reversely sealing cone blocking structure, effectively protection pressure ring is by dielectric corrosion, and assembling space is with technique more preferably。Exclusive lightning protection circuit designs, it is ensured that signal transmission is interference-free, transmits more stable。Outside zeroing reset wiring design, meets the on-the-spot checking for zero and reset operation of station, reduces the use of unnecessary external instrument, meet unnecessary depot repair simultaneously, improve work efficiency, it is ensured that instrument runs for a long time efficiently。
Accompanying drawing explanation
Fig. 1 is installation diagram of the present utility model。
Fig. 2 is the circuit diagram of zeroing reset connection circuit。
Fig. 3 is the circuit diagram of two grades of lightening surge preventings and overvoltage crowbar。
In the drawings: 1-sensor base, 2-body, 3-bonnet, 4-protects lid, 5-sensor, 6-wiring board, 7-the first sealing ring mounting groove, and 8-the second sealing ring mounting groove, 9-seals cone blocking, 10-pressure ring, 11-outlet cable。
Detailed description of the invention
For the technological means making this utility model realize, creation characteristic, reach purpose and effect and be easy to understand, below in conjunction with being specifically illustrating, this utility model is expanded on further。
Referring to Fig. 1 ~ Fig. 3, a kind of liquid level measurer, including body, sensor base, protection lid, sensor, bonnet, outlet cable, wiring board, pressure ring, body one end is provided with sensor base, protection lid it is provided with outside sensor base, the body other end is provided with bonnet, outlet cable it is provided through in bonnet, outlet cable is connected by pressure ring compression with bonnet, sensor it is provided with in sensor base, sensors back side is provided with wiring board, it is characterized in that, described sensor base is connected with body laser weld, its seam crossing is the first Laser Welding contact, sensor base outer rim on the right side of first Laser Welding contact is provided with the first sealing ring mounting groove, in first sealing ring mounting groove, O RunddichtringO is installed；Described bonnet is connected with body laser weld, and its seam crossing is the second Laser Welding contact, and the bonnet outer rim on the left of the second Laser Welding contact is provided with the second sealing ring mounting groove, is provided with O RunddichtringO in the second sealing ring mounting groove。
Also include sealing cone blocking, seal cone blocking and be arranged between pressure ring and bonnet。
Described sealing cone blocking is reversely seal cone blocking structure, and the pressing pressure ring sealing cone blocking is located at inside bonnet。Not contact medium, requires not harsh to pressure ring material, and can effectively prevent the corrosion of positive face seal cone blocking structure pressing pressure ring, protects instrument long-term effectiveness。
Described wiring board is provided with zeroing reset connection circuit, and the touch control line protection being realized 10 ~ 48V by stabilivolt and resistor network realizes the collection that touch-control level signal changes。Ensure its compact is light reach international similar level while, power supply and output signal end mouth Anti-surging performance indications reach: GBT17626.5:4 level level, and the resistance to pressure energy that simultaneously insulate meets product Standard (500VDC), has overvoltage simultaneously, cross stream, the function such as anti-reverse。
Described wiring board is provided with two grades of lightening surge preventings and overvoltage crowbar, by selecting the paster packaging ceramic gas of Jun Yao company to put pipe (GDT2): 4532-091-LF is for differential mode surge protection, paster glass gas-discharge tube (GDT1, GDT3): BK22005002-M(is pressure 1000V) common mode carrying out surge protection is realized, paster PPTC(P3, P4): SMD1210P005TF(superposition 2, half is reduced in impedance, the through-flow 39mA of increasing at 80 DEG C) realize one-level and the blocking-up of two inter-stages, and overcurrent protection, paster TVS(SMBJ33CA) smooth sea gushes and ESD protection, while realizing that compact is light and reaching international similar level, power supply and output signal end mouth Anti-surging performance indications reach: GBT17626.5:4 level B level, the resistance to pressure energy that simultaneously insulate meets product Standard (500VDC), there is overvoltage (GDT+TVS simultaneously, cross stream (PPTC overcurrent protection 39Ma80 DEG C close to 20mA), functions such as anti-reverse (diodes)。
Of the present utility model ultimate principle, principal character and of the present utility model advantage have more than been shown and described。Skilled person will appreciate that of the industry; this utility model is not restricted to the described embodiments; simply principle of the present utility model described in above-described embodiment and description; under the premise without departing from this utility model spirit and scope, this utility model also has various changes and modifications, and these changes and improvements both fall within claimed scope of the present utility model。The protection domain that this utility model requires is defined by appending claims and equivalent thereof。
Claims (5)
1. a level measuring instrument, including body, sensor base, protection lid, sensor, bonnet, outlet cable, wiring board, pressure ring, body one end is provided with sensor base, protection lid it is provided with outside sensor base, the body other end is provided with bonnet, outlet cable it is provided through in bonnet, outlet cable is connected by pressure ring compression with bonnet, sensor it is provided with in sensor base, sensors back side is provided with wiring board, it is characterized in that, described sensor base is connected with body laser weld, its seam crossing is the first Laser Welding contact, sensor base outer rim on the right side of first Laser Welding contact is provided with the first sealing ring mounting groove, in first sealing ring mounting groove, O RunddichtringO is installed；Described bonnet is connected with body laser weld, and its seam crossing is the second Laser Welding contact, and the bonnet outer rim on the left of the second Laser Welding contact is provided with the second sealing ring mounting groove, is provided with O RunddichtringO in the second sealing ring mounting groove。
2. level measuring instrument according to claim 1, it is characterised in that also include sealing cone blocking, seal cone blocking and be arranged between pressure ring and bonnet。
3. level measuring instrument according to claim 2, it is characterised in that described sealing cone blocking is reversely seal cone blocking structure, and the pressing pressure ring sealing cone blocking is located at inside bonnet。
4. liquid level measurer according to claim 1, it is characterised in that described wiring board is provided with zeroing reset connection circuit。
5. level measuring instrument according to claim 1, it is characterised in that described wiring board is provided with two grades of lightening surge preventings and over-voltage and over-current reverse connection prevention protection circuit。
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520958022.9U CN205333143U (en) | 2015-11-27 | 2015-11-27 | Liquid level measurement instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520958022.9U CN205333143U (en) | 2015-11-27 | 2015-11-27 | Liquid level measurement instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205333143U true CN205333143U (en) | 2016-06-22 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520958022.9U Active CN205333143U (en) | 2015-11-27 | 2015-11-27 | Liquid level measurement instrument |
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| CN (1) | CN205333143U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318934A (en) * | 2015-11-27 | 2016-02-10 | 上海立格仪表有限公司 | Liquid level measurement instrument |
-
2015
- 2015-11-27 CN CN201520958022.9U patent/CN205333143U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105318934A (en) * | 2015-11-27 | 2016-02-10 | 上海立格仪表有限公司 | Liquid level measurement instrument |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |