CN210198485U

CN210198485U - Liquid level monitoring device

Info

Publication number: CN210198485U
Application number: CN201920755498.0U
Authority: CN
Inventors: Yang Zhang; 张洋
Original assignee: Guizhou Wujiang Hydropower Development Co Ltd Shatuo Power Plant
Current assignee: Guizhou Wujiang Hydropower Development Co Ltd Shatuo Power Plant
Priority date: 2019-05-24
Filing date: 2019-05-24
Publication date: 2020-03-27
Anticipated expiration: 2029-05-24

Abstract

The application discloses liquid level monitoring device, including level gauge, siphunculus and first support, first support is erect in the siphunculus, the level gauge is established on the first support, the direction that sets up of level gauge is on a parallel with the axis direction of siphunculus, the liquid level change that detects vent department that can be accurate provides reliable data for the detection that the stator leaked.

Description

Liquid level monitoring device

Technical Field

The utility model relates to a stator monitoring technology, concretely relates to liquid level monitoring device of hydraulic power plant turbine unit.

Background

The guide vane is one of the most important casting and forging pieces in the water guide mechanism of the water turbine generator set, has the same function as a volute, and is mainly used in a sectional type multistage pump. In the multistage centrifugal pump, guide vanes are arranged in a middle section with a partition plate, and the guide vanes are used for collecting liquid thrown out by an impeller, so that the flow velocity of the liquid is reduced, partial velocity energy heads are converted into pressure energy heads, and then the pressure energy heads are uniformly introduced into the next stage or discharged through a diffusion pipe, so that the water turbine is impacted by water flow uniformly, and the multistage centrifugal pump is a main part for adjusting the load of a unit. When the unit needs to be shut down, the guide vane needs to be closed firstly, if the guide vane leaks water, the water turbine cannot be shut down normally when the water leakage reaches a certain degree, the load of the unit cannot be adjusted normally, safety accidents are caused seriously, the large water leakage amount can cause the situation that the gap is too large after the guide vane is closed, or part of the guide vanes cannot be controlled normally, the water turbine is used and the like, so the detection of the water leakage amount of the guide vane is important, the guide vane and the gate are closed, a section of closed space is formed between the guide vane and the gate, at the moment, if the water leakage occurs, negative pressure can be formed in the section of closed space, potential safety hazards can occur, a vent hole is formed in the gate to eliminate the negative pressure, and if the water leakage occurs in the guide vane. Therefore, the device for monitoring the liquid level at the vent hole is of great significance for monitoring water leakage of the guide vane.

SUMMERY OF THE UTILITY MODEL

In view of the above-mentioned drawbacks and deficiencies of the prior art, it is desirable to provide a liquid level monitoring device.

In order to overcome the deficiency of the prior art, the utility model provides a technical scheme is:

the utility model provides a liquid level monitoring device, its special character lies in: including level gauge, siphunculus and first support, first support is erect in the siphunculus, the level gauge is established on the first support, the direction that sets up of level gauge is on a parallel with the axis direction of siphunculus.

Further, detection device still includes bubble balance appearance and at least three leveling mechanism, the bubble balance appearance is located in the siphunculus pipeline section of level gauge top, at least three leveling mechanism set up uniformly along the circumferencial direction in on the siphunculus.

Further, the quantity of leveling mechanism is four, four leveling mechanism along the circumferencial direction evenly set up in on the siphunculus.

The leveling device further comprises a second support, the second support comprises an annular body and a connecting plate arranged on the outer side of the annular body, the connecting plate corresponds to the lug plate in arrangement position, and the leveling rod is detachably connected with the connecting plate;

leveling mechanism includes otic placode and leveling rod, the otic placode is located the siphunculus outer wall, be equipped with spherical groove on the otic placode, leveling rod tip be equipped with spherical connecting portion that spherical groove shape size matches, spherical connecting portion at least half submerge spherical inslot.

Further, the leveling rod passes the connecting plate, keeps away from the one end of spherical connecting portion is equipped with twist grip, spherical connecting portion with be equipped with the external screw thread on the pole section between the twist grip, supply on the connecting plate the position that the leveling rod passed be equipped with the internal thread that the external screw thread matches.

Furthermore, the connecting plate is provided with a threaded hole for connecting with the outside.

Compared with the prior art, the beneficial effects of the utility model are that:

the utility model discloses a liquid level monitoring device, including level gauge, siphunculus and first support, first support is erect in the siphunculus, the level gauge is established on the first support, the direction that sets up of level gauge is on a parallel with the axis direction of siphunculus. Install liquid level monitoring device in venthole department, will be stable fix in venthole department through the mounting system, the change of measurement liquid level that can be accurate.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the invention without limitation. It is obvious that the drawings in the following description are only some embodiments, and that for a person skilled in the art, other drawings can be derived from them without inventive effort. In the drawings:

fig. 1 is a three-dimensional structure diagram of a liquid level monitoring device provided in an embodiment of the present invention;

fig. 2 is a three-dimensional structure diagram of a liquid level monitoring device according to another embodiment of the present invention;

FIG. 3 is a perspective view of the second bracket of FIG. 2;

FIG. 4 is a perspective view of the leveling rod of FIG. 2;

in the figure: 10-through pipe, 11-first support, 12-liquid level meter, 13-bubble balancing instrument, 14-ear plate, 15-leveling rod, 16-second support, 141-spherical groove, 151-spherical connecting part, 152-rotating handle, 161-annular body and 162-connecting plate.

It should be noted that the drawings and the description are not intended to limit the scope of the inventive concept in any way, but to illustrate the inventive concept by those skilled in the art with reference to specific embodiments.

Detailed Description

The present application will be described in further detail with reference to the following drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the relevant invention and are not limiting of the invention. It should be noted that, for convenience of description, only the portions related to the present invention are shown in the drawings.

It should be noted that the embodiments and features of the embodiments in the present application may be combined with each other without conflict. The present application will be described in detail below with reference to the embodiments with reference to the attached drawings.

Referring to fig. 1 to 4, the utility model provides a liquid level monitoring device, including level gauge 12, siphunculus 10 and first support 11, first support 11 is established in the siphunculus 10, level gauge 12 establishes on the first support 11, level gauge 12 set up the direction be on a parallel with the axis direction of siphunculus 10.

But as an implementation mode, detection device still includes bubble balance appearance 13 and at least three leveling mechanism, bubble balance appearance 13 is located in the siphunculus pipeline section of level gauge 12 top, perpendicular with the siphunculus axis, the both ends of bubble spirit level are fixed on the siphunculus inner wall, at least three leveling mechanism set up uniformly along the circumferencial direction on the siphunculus 10, and the bubble spirit level of here is the leveling instrument commonly used in the construction, and the outside adopts steel material preparation outrigger, is provided with sealed glass pipe in the middle part, is full of ether or alcohol in the pipe to leave a small bubble, when being in balanced state, this small bubble is located the glass pipe is positive.

The leveling mechanism can enable the through pipe 10 to be always vertical to the liquid level, whether the through pipe 10 is leveled or not can be observed through the bubble balancing instrument 13, and the purpose of leveling is to ensure the accuracy of measurement of the liquid level meter 12.

As an embodiment, the number of the leveling mechanisms is four, and four leveling mechanisms are uniformly arranged on the through pipe 10 along the circumferential direction. The four leveling mechanisms can ensure the stability of the through pipe 10 and cannot shake due to the impact of water flow.

As an implementation manner, the leveling mechanism includes an ear plate 14 and a leveling rod 15, the ear plate 14 is disposed on the outer wall of the through pipe 10, a spherical groove 141 is disposed on the ear plate 14, a spherical connecting portion 151 matching with the spherical groove 141 in shape and size is disposed at the end of the leveling rod 15, and at least half of the spherical connecting portion 151 sinks into the spherical groove 141.

The leveling rod 15 may be directly fixed to the outside of the ventilation hole, or may be fixed to the outside of the ventilation hole by another mechanism, the spherical connecting portion 151 of the leveling rod 15 has a spherical shape matching the size of the spherical groove 141, three quarters of the spherical connecting portion 151 is inserted into the spherical groove 141, and the spherical connecting portion 151 can rotate in the spherical groove 141 but does not fall off. The leveling of the connecting rod is coordinated through the ear plates 14 arranged on the through pipe 10, so that the swinging of the through pipe 10 in the leveling process is adapted.

As an implementation manner, the detecting device further includes a second bracket 16, the second bracket 16 includes a ring-shaped body 161 and a connecting plate 162 disposed outside the ring-shaped body 161, the connecting plate 162 corresponds to the position of the ear plate 14, and the leveling rod 15 is detachably connected to the connecting plate 162. The leveling rod 15 can be directly passed through the bracket, and a locking mechanism is additionally arranged to fix the position of the leveling rod 15, such as: a through hole is provided in the side of the ring body 161, and a locking bolt is used to pass through the locking leveling rod 15.

As an implementation manner, the leveling rod 15 passes through the connecting plate 162, a rotating handle 152 is disposed at an end away from the spherical connecting portion 151, an external thread is disposed on a rod section between the spherical connecting portion 151 and the rotating handle 152, and an internal thread matching with the external thread is disposed at a position on the connecting plate 162 through which the leveling rod 15 passes. The position of the leveling rod 15 is adjusted and locked by matching external threads arranged on the rod section of the leveling rod 15 with internal threads on a screw hole; it is also possible to lock the levelling rod 15 to the second bracket 16 by providing a nut on the rod section between the connection and said turning handle 152, tightening the nut.

In one embodiment, the connection plate 162 is provided with a threaded hole for connecting with the outside. And a connecting bolt is arranged to penetrate through the threaded hole to be connected with the outside.

It should be noted that the terms "upper", "lower", "front", "rear", "left", "right", "vertical", "inner", "outer", etc. indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are only for convenience of describing the present invention and simplifying the description, but do not indicate or imply that the device or element referred to must have a specific orientation, be constructed in a specific orientation, and be operated, and thus should not be construed as limiting the present invention.

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in any way, and although the present invention has been disclosed with reference to the above preferred embodiment, but not to limit the present invention, any person skilled in the art can make some changes or modifications to equivalent embodiments without departing from the scope of the present invention, and any simple modification, equivalent change and modification made to the above embodiments by the technical spirit of the present invention still fall within the scope of the present invention.

Claims

1. A liquid level monitoring device, its characterized in that: including level gauge, siphunculus and first support, first support is erect in the siphunculus, the level gauge is established on the first support, the direction that sets up of level gauge is on a parallel with the axis direction of siphunculus.

2. The fluid level monitoring device of claim 1, wherein: still include bubble balancing appearance and at least three levelling mechanism, the bubble balancing appearance is located in the siphunculus pipeline section of level gauge top, at least three levelling mechanism set up uniformly along the circumferencial direction in on the siphunculus.

3. The fluid level monitoring device of claim 2, wherein: the quantity of leveling mechanism is four, four leveling mechanism along the circumferencial direction evenly set up in on the siphunculus.

4. The fluid level monitoring device of claim 2, wherein: the leveling mechanism comprises an ear plate and a leveling rod, the ear plate is arranged on the outer wall of the through pipe, a spherical groove is arranged on the ear plate, a spherical connecting part matched with the spherical groove in shape and size is arranged at the end part of the leveling rod, and at least half of the spherical connecting part is immersed in the spherical groove; still include the second support, the second support includes annular body and locates the connecting plate in the annular body outside, the connecting plate with the position that sets up of otic placode is corresponding, the levelling rod with the connection can be dismantled to the connecting plate.

5. The fluid level monitoring device of claim 4, wherein: the leveling rod passes the connecting plate is kept away from the one end of spherical connecting portion is equipped with twist grip, spherical connecting portion with be equipped with the external screw thread on the pole section between the twist grip, supply on the connecting plate the position that the leveling rod passed be equipped with the internal thread that the external screw thread matches.

6. The fluid level monitoring device of claim 5, wherein: and the connecting plate is provided with a threaded hole for connecting with the outside.