CS254935B1 - Pressure sensing device - Google Patents
Pressure sensing device Download PDFInfo
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- CS254935B1 CS254935B1 CS862710A CS271086A CS254935B1 CS 254935 B1 CS254935 B1 CS 254935B1 CS 862710 A CS862710 A CS 862710A CS 271086 A CS271086 A CS 271086A CS 254935 B1 CS254935 B1 CS 254935B1
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- pressure
- reducer
- sensing device
- pressure sensing
- heating coil
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Abstract
Riešenie sa týká zariadenia pre snímanie vysokého tlaku. Zariadenie je navrhnuté pre prácu pri nízkých teplotách. Zariadenie pre snímanie tlaku pozostáva z reduktora, ku ktorému je lisováním uchytený zberač presakov. Vyhrievacia cievka je taktiež pevne zaaretovaná na redaktore. S reduktorom je skrutkovým spojom spojený snímač tlaku. Úlohou reduktora je vhodné modifikovat vysoký tlak pracovného média na nižšiu tlakovú hladinu, vhodnú pre snímač tlaku.The solution concerns a device for sensing high pressure. The device is designed for operation at low temperatures. The device for sensing pressure consists of a reducer to which a leak collector is pressed. The heating coil is also firmly locked on the reducer. A pressure sensor is connected to the reducer by a screw connection. The role of the reducer is to modify the high pressure of the working medium to a lower pressure level suitable for the pressure sensor.
Description
Riešenie sa týká zariadenia pre snímanie vysokého tlaku. Zariadenie je navrhnuté pre prácu pri nízkých teplotách. Zariadenie pre snímanie tlaku pozostáva z reduktora, ku ktorému je lisováním uchytený zberač presakov. Vyhrievacia cievka je taktiež pevne zaaretovaná na reduktore. S reduktorom je skrutkovým spojom spojený snímač tlaku. Úlohou reduktora je vhodné modifikovat vysoký tlak pracovného média na nižšiu tlakovú hladinu, vhodnú pre snímač tlaku. 2
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Vynález sa týká snímacieho systému tlaku pracovného média hynrín^mkého systému.
Na mobilnom objekte sa často žiada monitorovanie tlaku hydraulicko-elektrickým prevodníkom, ktorého signál sa dalej spracováva róznymi sposobmi v róznych návazných obvodoch. Požiadavkou je, aby hydraulicko-elektrický převodník spoTahlivo pracoval v oblastí vysokých tlakov 40 -ř- 50 MPa a pri teplotách okolia a pracovného média od mínus 40 °C. Tenzometrické převodníky tlaku nie sú pre minusové teploty vhodné a iné sériovo vyrábané převodníky sú dostupné pre tlaky maximálně 25 MPa. Snímače tlaku na báze křemíkových čípov nie sú vhodné do vibračného prostredia mobllného objektu a pre uvedené tlakové hodnoty strácajú předčasné parametre. Pre spracovanie signálu z týchto snímačov sú potřebné cenovo a konštrukčne náročné elektronické obvody.
Uvedené nevýhody odstraňuje zariadenie pre snímanie tlaku podl'a vynálezu, ktorého podstata spočívá v tom, že teleso reduktora tlaku je lisováním spojené so zberačom oleja a vyhrievacou cievkou, pričom k reduktoru tlaku je prostredníctvom redukcíe skrutkovým spojom uchytený snímač tlaku. Výhodou snímacieho .systému tlaku podlá..... vynálezu je, že získáme cenovo a konštrukčne nenáročné riešenie, ktoré je schopné funkčně a prevádzkovo spoláhlivo pracovat v ťažkých podmienkach pracovného prostredia mobilného objektu. Činnost zariadenia pri minusových teplotách zabezpečuje vyhrievacia cievka. Reduktor pracuje s minimálnymi hydraulickými stratami, ktoré sú zachytávané & zberači a tým je zabráněné znečisťoVansn pracovného okolia.
Na priloženom obrázku je v náryse a v čiastočnom řeze nakreslený redukčný systémilaku.
Zariadenie na snímanie tlaku pozostáva z reduktora 2, zberača 3, vyhrievacej cievky 4 a snímača tlaku 1. Reduktor 2 tlaku pozostáva z telesa 5, v ktorom sa pohybuje posúvač 6. Na plochu posúvača 6 v priestore A posobí vysoký tlak pracovného média 40 η- 50 MPa. Posúvač 6 posobí na piest 7, ktorého plocha je dvojnásobné vačšia ako plocha posúvača 6 a tým dochádza k redukčnému účinku tlaku. Piest 7 posobí na přenosné tekutinové médium, ktoré sa nachádza v priestore 17. Tlakový signál, ktorý vzniká v priestore 17, je prenášaný kanálom C, ktorý sa nachádza v redukcii 15, na snímač tlaku 1. Presak, ktorý vzniká pri činnosti reduktora 2 sa zhromažďuje v priestore medzi posúvačom 0 a je odvádzaný kanálom B do priestoru D zberača 3. Zberač 3 je vodotěsně spojený s telesom 5 reduktora 2 tlaku a je uzavretý zátkou 3. Zo strany snímača tlaku 1 je pevne, s telesom 5 reduktora 2 tlaku, uchytená vyhrievacía cievka 4. Vyhrievacia cievka 4 pozostáva z nosiča 12, vinutia 11, plášťa 10 a veka 13. Proti axiálnemu posuvu je vyhrievacia cievka 4 mechanicky zaistená krúžkom 14. Zberač 3, plášť 10 je na telese 5 zalisovaný. Snímač tlaku 1 je skrutkovým spojom uchytený ku redukcii 15 a tá je zaskrutkovaná do telesa 5 reduktora 2.
Snímací systém tlaku je možné použiť všade tam, kde je potřebné snímat vysoký tlak pri nízkých teplotách.
The solution relates to a device for sensing high pressure. The device is designed to work at low temperatures. The pressure sensing device consists of a reducer to which a press collector is attached by pressing. The heating coil is also fixed on the reducer. A pressure sensor is connected to the reducer by a screw connection. The task of the reducer is to modify the high pressure of the working medium to a lower pressure level suitable for the pressure sensor. 2
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BACKGROUND OF THE INVENTION The present invention relates to a working medium pressure sensing system of a hybrid system.
On a mobile object, it is often required to monitor the pressure with a hydraulic-electric converter, the signal of which is further processed in different ways in different follow-up circuits. The requirement is that the hydraulic-electric transducer operates reliably in the high pressure range of 40-50 MPa and at ambient and working medium temperatures of minus 40 ° C. Strain gauge pressure transducers are not suitable for minus temperatures and other mass produced transducers are available for pressures of up to 25 MPa. Silicon sensor pressure transducers are not suitable for the vibration environment of the mobble and lose premature parameters for the stated pressure values. For signal processing from these sensors, cost-intensive and demanding electronic circuits are needed.
The above-mentioned disadvantages are eliminated by the pressure sensing device according to the invention, the principle of which is that the pressure reducer body is press-connected to an oil collector and a heating coil, wherein a pressure sensor is attached to the pressure reducer by means of a screw connection. The advantage of the pressure sensing system according to the invention is that we obtain a cost-effective, low-cost solution capable of functionally and operationally operating in difficult conditions of the mobile object's work environment. Operation of the device at minus temperatures is ensured by the heating coil. The reducer works with minimal hydraulic losses that are trapped & collectors, and thus the pollution of the working environment is prevented.
In the attached figure, the reduction system is shown in front and in partial cross-section.
The pressure sensing device consists of a reducer 2, a collector 3, a heating coil 4 and a pressure sensor 1. The pressure reducer 2 consists of a body 5 in which the slide 6 moves. 50 MPa. The slider 6 moves on the piston 7, the surface of which is twice as large as the surface of the slider 6, thereby reducing the pressure effect. The piston 7 moves on the portable fluid medium located in the space 17. The pressure signal generated in the space 17 is transmitted by the channel C located in the reduction 15 to the pressure sensor 1. collects in the space between the slider 0 and is discharged via channel B to collector space 3. Collector 3 is watertightly coupled to body 5 of pressure reducer 2 and is closed by a plug 3. The heating coil 4 consists of a carrier 12, a coil 11, a housing 10 and a lid 13. The heating coil 4 is mechanically secured by a ring 14 against the axial displacement. The collector 3, the housing 10 is pressed on the body 5. The pressure transducer 1 is screwed to the reducer 15 and screwed into the reducer body 5.
The pressure sensing system can be used wherever high pressure is required at low temperatures.
Claims (1)
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS862710A CS254935B1 (en) | 1986-04-14 | 1986-04-14 | Pressure sensing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CS862710A CS254935B1 (en) | 1986-04-14 | 1986-04-14 | Pressure sensing device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CS271086A1 CS271086A1 (en) | 1987-06-11 |
| CS254935B1 true CS254935B1 (en) | 1988-02-15 |
Family
ID=5364987
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CS862710A CS254935B1 (en) | 1986-04-14 | 1986-04-14 | Pressure sensing device |
Country Status (1)
| Country | Link |
|---|---|
| CS (1) | CS254935B1 (en) |
-
1986
- 1986-04-14 CS CS862710A patent/CS254935B1/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CS271086A1 (en) | 1987-06-11 |
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