CN207180839U - A kind of Monitoring Boiler Drum Water Level device based on PLC controls - Google Patents

Abstract

The utility model discloses a boiler drum water level monitoring device based on PLC control in the technical field of water level monitoring devices. There is a longitudinal moving rod running through the side longitudinally, the bottom of the outer wall of the longitudinal moving rod is sleeved with a buffer rubber sleeve, the bottom end of the longitudinal moving rod is sleeved with a float, and the upper side of the outer wall of the longitudinal moving rod is connected with a sleeve by screws. The left side wall of the collar is plugged with a strut, the left end of the strut is connected with a conductor slider through a screw, the bottom of the conductor slider is welded with a buffer spring, and the top left side of the mounting plate The column is connected by screws. This PLC-based boiler drum water level monitoring device brings different resistance value changes through different water levels, so that it can be displayed on the display screen, which is convenient for the staff to monitor the water level in the steam drum in real time. It is more convenient to use. .

Description

A Boiler Drum Water Level Monitoring Device Based on PLC Control

technical field

The utility model relates to the technical field of water level monitoring devices, in particular to a boiler drum water level monitoring device based on PLC control.

Background technique

The concept of the steam drum refers to the pressure drop or rise caused by the air pressure passing through the water cycle. It can also be understood that the steam drum is the air pressure change formed after the fusion of gas and water. The air and water molecules in the ultimate pressure will increase the pressure of the gas and cause the high pressure to reach The pressure set numerator generated after a certain value. The steam drum tank in the industry is an industrial equipment that can withstand the air pressure and water level pressure generated by the steam drum. The staff need to monitor the water level in the steam drum in real time to avoid the lack of water and cause the steam drum to fail to work normally. For this reason, We propose a PLC-based boiler drum water level monitoring device.

Utility model content

The purpose of this utility model is to provide a boiler steam drum water level monitoring device based on PLC control to solve the problem that the staff in the above background technology need to monitor the water level in the steam drum in real time, so as to avoid the lack of water and cause the steam drum to be abnormal. work problem.

In order to achieve the above object, the utility model provides the following technical solutions: a boiler drum water level monitoring device based on PLC control, including a mounting plate, the bottom of the mounting plate is bonded with a rubber pad through an adhesive, and the mounting plate There is a longitudinal moving rod running through the left side of the vertical moving rod, the bottom of the outer wall of the longitudinal moving rod is sleeved with a buffer rubber sleeve, the bottom end of the longitudinal moving rod is sleeved with a float, and the upper side of the outer wall of the longitudinal moving rod is connected by screws There is a collar, the left side wall of the collar is plugged with a strut, the left end of the strut is connected with a conductor slider through a screw, the bottom of the conductor slider is welded with a buffer spring, and the top of the mounting plate The left side is connected with a column by screws, the right side wall of the column holds the resistance coil through the insulating clip, the conductor slider is clamped on the right side wall of the resistance coil, and the left side wall of the column is from bottom to top A PLC control box, an alarm and a display screen are sequentially connected by screws, and the top of the right side wall of the column is connected with a storage battery by screws, and the storage battery is respectively connected to the conductor slider, the resistance coil, the PLC control box, the alarm and the battery through wires. The display is electrically connected.

Preferably, a baffle is connected to the top of the longitudinal moving rod, and the baffle and the longitudinal moving rod are integrally injection molded.

Preferably, slide bars are connected to the left and right side walls of the longitudinally moving rod, and slide grooves matching the slide bars are provided on the mounting plate.

Compared with the prior art, the beneficial effect of the utility model is that the boiler steam drum water level monitoring device based on PLC control can bring different resistance value changes through different water levels, so that it can be displayed on the display screen, which is convenient for the staff to monitor the steam drum water level. The water level inside is monitored in real time, which is more convenient to use.

Description of drawings

Fig. 1 is the structural representation of the utility model.

In the figure: 1 mounting plate, 2 rubber pad, 3 longitudinal moving rod, 4 buffer rubber sleeve, 5 float, 6 collar, 7 support rod, 8 conductor slider, 9 buffer spring, 10 column, 11 resistance coil, 12PLC control box, 13 alarms, 14 display screens, 15 storage batteries.

Detailed ways

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Please refer to Fig. 1, the utility model provides a technical solution: a boiler drum water level monitoring device based on PLC control, including a mounting plate 1, the bottom of the mounting plate 1 is bonded with a rubber pad 2 through an adhesive, and the mounting plate The left side of 1 is longitudinally penetrated with a longitudinal moving rod 3, the bottom of the outer wall of the longitudinal moving rod 3 is sleeved with a buffer rubber sleeve 4, the bottom end of the longitudinal moving rod 3 is sleeved with a float 5, and the upper side of the outer wall of the longitudinal moving rod 3 is passed through a screw Connected with a collar 6, the left side wall of the collar 6 is plugged with a strut 7, the left end of the strut 7 is connected with a conductor slider 8 through a screw, the bottom of the conductor slider 8 is welded with a buffer spring 9, and the mounting plate 1 The left side of the top is connected with a column 10 by screws, the right side wall of the column 10 holds the resistance coil 11 through the insulating clip, the conductor slider 8 is clamped on the right side wall of the resistance coil 11, and the left side wall of the column 10 is from bottom to A PLC control box 12, an alarm 13 and a display screen 14 are sequentially connected on the top by screws, and a storage battery 15 is connected to the top of the right side wall of the column 10 by screws, and the storage battery 15 is respectively connected to the conductor slider 8, the resistance coil 11, and the PLC control via wires. The box 12, the alarm 13 and the display screen 14 are electrically connected.

Wherein, the top of the longitudinal movement bar 3 is connected with a baffle plate, and the baffle plate and the longitudinal movement bar 3 are integrally injection-molded, the left and right side walls of the longitudinal movement bar 3 are connected with slide bars, and the mounting plate 1 is provided with Suitable chute.

Working principle: Install the mounting plate 1 on the detection port of the steam drum through screws, the battery 15 is connected to the resistance coil 11 through wires, the conductor slider 8 is connected to the PLC control box 12 through wires, and the PLC control box 12 is respectively connected to the alarm through wires. The device 13, the storage battery 15 and the display screen 14 are connected, the rubber pad 2 acts as a seal, the float 5 extends into the inner cavity of the steam drum, and the height of the float 5 changes with the change of the water level, and the float 5 drives the longitudinally moving rod 3 Longitudinal movement, the longitudinal movement rod 3 drives the conductor slider 8 to move longitudinally through the collar 6 and the support rod 7, the longitudinal movement of the conductor slider 8 makes the contact position between the conductor slider 8 and the resistance coil 11 different, and the resistance coil 11 plays a sliding role The function of the rheostat, different resistance values correspond to the corresponding current values, the current value is displayed through the display screen 14, the current value of the critical point water level is set by setting the PLC control box 12, when the critical point water level is reached, the PLC control box 12 sends an alarm through the alarm 13 to prompt the staff.

Although the embodiments of the present invention have been shown and described, those skilled in the art can understand that various changes and modifications can be made to these embodiments without departing from the principle and spirit of the present invention , replacements and modifications, the scope of the present utility model is defined by the appended claims and their equivalents.

Claims (3)

1. a kind of Monitoring Boiler Drum Water Level device based on PLC controls, including installing plate (1), it is characterised in that：The installation The bottom of plate (1) is bonded with rubber blanket (2) by bonding agent, and the left side of the installing plate (1) is longitudinally through vertically moving bar (3), the outer wall bottom for vertically moving bar (3) is socketed with buffering gum cover (4), the bottom socket for vertically moving bar (3) There is float (5), described vertically move has been connected by screw the collar (6) on the upside of bar (3) outer wall, the left side of the collar (6) Wall is plugged with pole (7), and the left end of the pole (7) has been connected by screw conductor sliding block (8), the conductor sliding block (8) Bottom is welded with buffer spring (9), and the top left side of the installing plate (1) has been connected by screw column (10), the column (10) right side wall is clamped with resistance coil (11) by insulating blanked clamper, and the conductor sliding block (8) is connected to resistance coil (11) Right side wall, the left side wall of the column (10) are connected with PLC control box (12), alarm (13) in turn by screw from top to bottom With display screen (14), the right side wall top of the column (10) has been connected by screw battery (15), the battery (15) It is electric with conductor sliding block (8), resistance coil (11), PLC control box (12), alarm (13) and display screen (14) respectively by wire Property connection.

A kind of 2. Monitoring Boiler Drum Water Level device based on PLC controls according to claim 1, it is characterised in that：Institute State to vertically move and baffle plate is connected with the top of bar (3), and baffle plate is with vertically moving bar (3) integrated injection molding.

A kind of 3. Monitoring Boiler Drum Water Level device based on PLC controls according to claim 1, it is characterised in that：Institute State and vertically move the left and right sidewall of bar (3) and be respectively connected with draw runner, and the chute being adapted with draw runner is offered on installing plate (1).