CN211717549U - Liquid level measuring device capable of automatically cutting off flushing water - Google Patents

Abstract

The utility model belongs to the technical field of automatic control, especially, relate to a but liquid level measurement device of automatic cutout sparge water. The device comprises a static differential pressure liquid level transmitter, a pipeline short section, a water pipe, a limit switch and an electromagnetic valve which are matched; the limit switch is provided with a movable rod for opening and closing the electromagnetic valve; the pipeline short section is communicated with the water pipe, and the electromagnetic valve is arranged on the water pipe; the limit switch is arranged outside the pipe nipple; a flange of the static differential pressure liquid level transmitter is connected with a flange of the pipe nipple through a plurality of bolts, and one bolt is over against a movable rod of the limit switch; when the bolt is screwed down or loosened, the stud can enable the movable rod to rotate and open and close the limit switch. The utility model is used for measuring the liquid level of turbid and easily precipitated media, and realizes the opening and closing of the electromagnetic valve through the tightening or loosening of the bolt, thereby automatically closing flushing water during maintenance; simple structure and safe use.

Description

Liquid level measuring device capable of automatically cutting off flushing water

Technical Field

The utility model belongs to the technical field of automatic control, especially, relate to a but liquid level measurement device of automatic cutout sparge water.

Background

At present, the measurement of the liquid level of turbid and easily precipitated media is usually realized by adopting a mode of adding a flushing water pipeline to a hydrostatic pressure liquid level transmitter, and the purpose of doing so is to prevent the media from accumulating at a membrane so as to influence the measurement of the liquid level. At present, the control of flushing water basically adopts a mode of a manual valve, and the manual valve is always in an open state in the working process of a static differential pressure transducer, so that the flushing water can continuously clear a precipitation medium in front of a diaphragm. When a maintenance person overhauls the static differential pressure transmitter, the maintenance person often unloads the static differential pressure transmitter under the condition that the manual valve is not closed to stop flushing water, so that flushing water flows out. Therefore, not only is water resource waste caused, but also icing phenomenon is easily caused in winter, and potential safety hazards are increased.

SUMMERY OF THE UTILITY MODEL

The utility model provides a liquid level measuring device capable of automatically cutting off flushing water for solving the technical problems in the prior art.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

the utility model provides a can cut off liquid level measurement device of sparge water automatically which characterized in that: the device comprises a static differential pressure liquid level transmitter, a pipeline short section, a water pipe, a limit switch and an electromagnetic valve which are matched; the limit switch is provided with a movable rod for opening and closing the electromagnetic valve;

the pipeline short section is communicated with the water pipe, and the electromagnetic valve is arranged on the water pipe; the limit switch is arranged on the outer side of the pipeline short section; the flange of the static differential pressure liquid level transmitter is connected with the flange of the pipeline short section through a plurality of bolts, and one bolt is over against a movable rod of a limit switch; when the bolt is screwed down or loosened, the stud can enable the movable rod to rotate and open and close the limit switch.

Furthermore, the limit switch is arranged on the outer side of the pipeline nipple through a switch bracket.

The utility model has the advantages and positive effects that:

the utility model is used for measuring the level of turbid and easily precipitated medium, and the bolt with a certain length is arranged between the static differential pressure liquid level transmitter and the pipe nipple flange, so that the bolt is just opposite to the movable rod of the limit switch; the opening and closing of the electromagnetic valve are realized by screwing or loosening the bolt, so that the flushing water can be automatically closed during maintenance; simple structure and safe use.

Description of the drawings:

FIG. 1 is a front view of an apparatus according to an embodiment of the present invention;

fig. 2 is an exploded view of fig. 1.

Wherein: 1. a static differential pressure level transmitter; 2. a pipe nipple; 3. a water pipe; 4. a limit switch; 41. a movable rod; 5. an electromagnetic valve; 6. and (4) bolts.

Detailed Description

The drawings in the embodiments of the present invention will be combined; the technical scheme in the embodiment of the utility model is clearly and completely described; obviously; the described embodiments are only some of the embodiments of the present invention; rather than all embodiments. Based on the embodiment of the utility model; all other embodiments obtained by a person skilled in the art without making any inventive step; all belong to the protection scope of the utility model.

As shown in fig. 1-2, the utility model provides a liquid level measuring device capable of automatically cutting off flushing water, which comprises a static differential pressure liquid level transmitter 1, a pipeline short section 2, a water pipe 3, a limit switch 4 and a solenoid valve 5; the limit switch 4 is provided with a movable rod 41 for opening and closing the electromagnetic valve; two sections of water pipes 3 are connected to the pipeline of the pipeline nipple 2, and the water pipes 3 are connected through the electromagnetic valve 5; the limit switch 4 is arranged on the outer side of the pipeline nipple 2 through a switch bracket; the flange of the static differential pressure liquid level transmitter 1 is connected with the flange of the pipeline nipple 2 through a plurality of bolts 6, wherein one bolt 6 is over against a movable rod of a limit switch; the stud of the bolt 6 can make the movable rod 41 rotate and open and close the limit switch 4 by moving along the axial direction of the pipe nipple 2.

The working principle is as follows:

the device is used for measuring the liquid level of turbid and easily-precipitated media. After the device is fixedly installed, the bolt 6 opposite to the limit switch 4 is locked with the nut, the tail end of the stud can push against the movable rod 41 to generate angular deviation so as to trigger the limit switch 4, the electromagnetic valve 5 is powered on and then is opened, and washing water begins to wash precipitated media in front of the diaphragm. When a maintenance worker needs to overhaul the static differential pressure liquid level transmitter 1, the movable rod 41 is reset only by loosening the bolt 6 propping against the movable rod 41, the limit switch 4 is closed to disconnect the power supply of the electromagnetic valve 5, the electromagnetic valve 5 is closed after power failure, and washing water stops washing the precipitated media in front of the diaphragm.

The embodiments of the present invention have been described in detail, but the above description is only for the preferred embodiments of the present invention, and should not be construed as limiting the scope of the present invention. All the equivalent changes and improvements made according to the application scope of the present invention should still fall within the patent coverage of the present invention.

Claims (2)

1. The utility model provides a can cut off liquid level measurement device of sparge water automatically which characterized in that: the device comprises a static differential pressure liquid level transmitter, a pipeline short section, a water pipe, a limit switch and an electromagnetic valve which are matched; the limit switch is provided with a movable rod for opening and closing the electromagnetic valve;

the pipeline short section is communicated with the water pipe, and the electromagnetic valve is arranged on the water pipe; the limit switch is arranged on the outer side of the pipeline short section; the flange of the static differential pressure liquid level transmitter is connected with the flange of the pipeline short section through a plurality of bolts, and one bolt is over against a movable rod of a limit switch; when the bolt is screwed down or loosened, the stud can enable the movable rod to rotate and open and close the limit switch.

2. The fluid level measuring device of claim 1, wherein: the limit switch is arranged on the outer side of the pipeline nipple through a switch bracket.

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