CN201293671Y

CN201293671Y - Level meter

Info

Publication number: CN201293671Y
Application number: CNU2008202178418U
Authority: CN
Inventors: 张建红
Original assignee: Zhangjiagang Furui Special Equipment Co Ltd
Current assignee: Zhangjiagang Furui Special Equipment Co Ltd
Priority date: 2008-11-12
Filing date: 2008-11-12
Publication date: 2009-08-19
Anticipated expiration: 2018-11-12

Abstract

The utility model discloses a liquid level detector with high precision and the adaptability to horizontal bottle, which comprises an inner tube and an outer tube sheathed together, wherein two ends of the outer tube are respectively embedded in an insulation seat ring and an insulation top sleeve; the inner walls of two ends of the outer tube are respectively provided with a positioning base sheathed by an insulation screw barrel; two ends of the inner tube are respectively sheathed on a corresponding screw barrel; the top sleeve is provided with a guide hole; the positioning base at same side of the top sleeve is embedded with an insulation guide sleeve and is provided with a press ring; a signal line penetrates through the guide hole and the guide sleeve; one lead out line of the signal line is clamped by in a lock sleeve, whose end is electrically connected with the inner tube via a conductive sheet fixed on the inner wall of the inner tube; and the other lead out line of the signal line is electrically connected with the outer tube via the press ring. The liquid level detector is especially suitable for horizontal bottles, to support the development of liquefied nature gas automobiles.

Description

Liquid level gauge

Technical field

The utility model relates to liquid level gauge, refers more particularly to the liquid level gauge of the horizontal steel cylinder that is used for containing liquid storage oxygen, liquid argon, liquid nitrogen and liquefied natural gas (LNG) liquid such as (LNG).

Background technology

At present, countries in the world are trying to explore to use liquefied natural gas (LNG) to replace vapour, the diesel oil fuel as automobile, and LNGV is under test, and its technology reaches its maturity; But, on fuel surplus measuring system, also do not find good solution so far, this is because vehicle-mounted bottle all is horizontal liquefied natural gas (LNG) liquid storage bottle usually, can't resemble and the liquid level that the magnetic float type level gauge is measured fuel in the bottle is installed the vertical liquefied natural gas (LNG) liquid storage bottle, and magnetic float type level gauge precision is too low, also is not suitable for being used on the onboard fuel surplus measuring system.Like this, fuel surplus measuring system has just hindered the development process of whole LNGV.

The utility model content

A technical matters to be solved in the utility model is: provide a kind of precision height and applicable to the liquid level gauge of horizontal bottle.

For solving the problems of the technologies described above, the technical solution adopted in the utility model is: liquid level gauge, comprise: be sleeved on together interior pipe and outer tube, the two ends of outer tube are inlaid in respectively in the seat ring and top cover of insulation, be respectively arranged with positioning seat on the inwall at outer tube two ends, be respectively installed with the swivel nut of insulation on each positioning seat, the two ends of pipe are set on the corresponding swivel nut in described, be provided with pilot hole in the cover of described top, with the orienting sleeve that is embedded with insulation in the positioning seat that pushes up the cover homonymy, this positioning seat is provided with hold-down ring, be equipped with signal wire in pilot hole and the orienting sleeve, an extension line of signal wire is clamped in the lock sleeve, and its end is electrically connected with interior pipe by the conductive sheet that is fixed on the inner tube wall, and another root extension line in the signal wire is electrically connected with outer tube by hold-down ring.

Be provided with spacer sleeve in the pilot hole of described top cover, described signal wire is located in the spacer sleeve.

The beneficial effects of the utility model are: interior pipe in the utility model and outer tube have constituted two pole plates of electric capacity, the liquefied gas that enters between pole plate just is equivalent to electrolytic solution, the liquid level difference of liquefied gas, its conducting medium are just different, and the electric capacity between the inner and outer pipe is just different.Therefore, by converting, the numerical value of electric capacity can be converted into the liquid level in the bottle, operation is quite simple, liquid level shows accurately reliable.With regard to having solved the level gauging problem of horizontal bottle well, cleared away the obstacle on the fuel surplus measuring system, like this for road has been paved in the development of whole LNGV.

Description of drawings

Fig. 1 is a cross-sectional view of the present utility model;

Among the figure: 1, seat ring, 2, interior pipe, 3, outer tube, 4, conductive sheet, 5, swivel nut, 6, lock sleeve, 7, positioning seat, 8, spacer sleeve, 9, hold-down ring, 10, orienting sleeve, 11, signal wire, 12, the top cover.

Embodiment

Below in conjunction with accompanying drawing, describe specific embodiments of the present utility model in detail.

As shown in Figure 1, liquid level gauge described in the utility model, comprise: be sleeved on together interior pipe 2 and outer tube 3---in,

outer tube

2 and 3 is made by metal material, the two ends of outer tube 3 are inlaid in respectively in the seat ring 1 and top cover 12 of insulation, be respectively arranged with positioning seat 7 on the inwall at outer tube 3 two ends, two positioning seats 7 are respectively installed with the swivel nut 5 of insulation by screw thread, the two ends of interior pipe 2 are set on the corresponding swivel nut 5, be provided with pilot hole in the described top cover 12, be provided with spacer sleeve 8 in this pilot hole, with the orienting sleeve 10 that is embedded with insulation in the positioning seat 7 that pushes up cover 12 homonymies, also be provided with hold-down ring 9 on this positioning seat 7, be equipped with signal wire 11 in spacer sleeve 8 and the orienting sleeve 10, an extension line of signal wire 11 is clamped in the lock sleeve 6, its end is electrically connected with interior pipe by the conductive sheet 4 on the inwall of pipe 2 in being fixed on, its concrete structure is: conductive sheet 4 is welded on the inwall of interior pipe 2, the end of this extension line is fixed on the middle part of conductive sheet 4, and another root extension line in signal wire 11 is electrically connected with outer tube 3 by hold-down ring 9.During practical application, two extension lines of signal wire 11 can be linked to each other with liquid level display controller.

Interior pipe 2 in the utility model and outer tube 3 have constituted two pole plates of electric capacity, and the liquefied gas that enters between pole plate just is equivalent to electrolytic solution, the liquid level difference of liquefied gas, and its conducting medium is just different, and the electric capacity between the inner and

outer pipe

2 and 3 is just different.Therefore, by converting, the numerical value of electric capacity can be converted into the liquid level in the bottle, show intuitively by liquid level display controller, operation is quite simple, liquid level shows accurately reliable.With regard to having solved the level gauging problem of horizontal bottle well, cleared away the obstacle on the fuel surplus measuring system, like this for road has been paved in the development of whole LNGV.

Claims

1. liquid level gauge, comprise: be sleeved on together interior pipe and outer tube, the two ends of outer tube are inlaid in respectively in the seat ring and top cover of insulation, be respectively arranged with positioning seat on the inwall at outer tube two ends, be respectively installed with the swivel nut of insulation on each positioning seat, the two ends of pipe are set on the corresponding swivel nut in described, be provided with pilot hole in the cover of described top, with the orienting sleeve that is embedded with insulation in the positioning seat that pushes up the cover homonymy, this positioning seat is provided with hold-down ring, be equipped with signal wire in pilot hole and the orienting sleeve, an extension line of signal wire is clamped in the lock sleeve, its end is electrically connected with interior pipe by the conductive sheet that is fixed on the inner tube wall, and another root extension line in the signal wire is electrically connected with outer tube by hold-down ring.

2. liquid level gauge as claimed in claim 1 is characterized in that: be provided with spacer sleeve in the pilot hole of described top cover, described signal wire is located in the spacer sleeve.