CN215869129U

CN215869129U - Liquid level trigger device

Info

Publication number: CN215869129U
Application number: CN202121811726.5U
Authority: CN
Inventors: 李银龙; 王强; 徐�明; 雷亚州; 胡永恒
Original assignee: Henan Jingrui Cooling Technology Co ltd
Current assignee: Henan Jingrui Cooling Technology Co ltd
Priority date: 2021-07-27
Filing date: 2021-07-27
Publication date: 2022-02-18
Anticipated expiration: 2031-07-27

Abstract

The utility model relates to a liquid level trigger device, which comprises a floater mounting cylinder and a trigger mechanism; the wall of the float mounting cylinder is provided with a plurality of water inlet holes, and the water inlet holes can not only ensure that the liquid levels inside and outside the float mounting cylinder are consistent, but also prevent sundries from entering the float mounting cylinder to influence the triggering action. A floater capable of floating up and down is arranged in the floater mounting cylinder; the triggering mechanism is arranged on the outer side of the floater mounting cylinder and comprises a fixed rod, a plurality of magnetic reed switches are arranged on the fixed rod, and each magnetic reed switch can be triggered by the floater. This device is through the cooperation of high-order magnetic reed switch, low level magnetic reed switch and a magnetism float, guarantees that the drain pump normally opens and stops, promotes the stability of the normal work of drain pump to ensure the operation of direct current transmission engineering valve cooling system safety and stability.

Description

Liquid level trigger device

Technical Field

The utility model relates to the technical field of liquid level control, in particular to a liquid level trigger device.

Background

The direct-current transmission engineering valve cooling system is divided into an inner cooling system and an outer cooling system, the inner cooling system is a closed circulating system, and the inner cooling water is driven by a main circulating pump to realize cooling and heat dissipation of the converter valve so as to ensure normal operation of the converter valve; the external cooling system adopts a water cooling mode, and external cooling water is driven by the spray pump to spray onto the surface of the cooling tower tray pipe, so that cooling and heat dissipation of internal cooling water are realized. Because the spray pump pit belongs to underground facilities and has low terrain, if equipment in the pump pit is submerged due to leakage, the equipment in the pump pit breaks down and then quits operation. In order to ensure the reliable operation of the external cooling system, the timely starting of the drainage pump in the spray pump pit water collection pool according to the change in the pool is very important.

At present, a floating ball switch is used in a conventional direct-current transmission engineering valve cooling system to control the starting and stopping actions of a drainage pump, but in the actual use process, because the space of a water collecting tank is small, the high-level floating balls and the low-level floating balls are easy to interfere with each other when acting, so that the floating ball liquid level switch cannot normally act; meanwhile, sundries are easy to be jammed in the water collecting tank, so that the floating ball liquid level switch cannot normally act; in addition, in the direct current transmission project which is put into operation for a long time, the floating ball switch in the water collecting tank is soaked in water for a long time, the working condition is severe, the inner part of the floating ball is easy to break down, and great risk is brought to normal operation of valve cooling equipment.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a liquid level trigger device to solve the problem that a floating ball can not normally start and stop a drainage pump in the existing liquid level trigger technology.

In order to achieve the purpose, the utility model adopts the following technical scheme: a liquid level trigger device comprises a floater mounting cylinder and a trigger mechanism;

the wall of the floater mounting cylinder is provided with a plurality of water inlet holes, and a floater capable of floating up and down is arranged in the floater mounting cylinder;

the triggering mechanism is arranged on the outer side of the floater mounting cylinder and comprises a fixed rod, a plurality of magnetic reed switches are arranged on the fixed rod, and each magnetic reed switch can be triggered by the floater.

Further, the lower extreme fixedly connected with fixing base of float installation section of thick bamboo, the fixing base is used for fixing in the pond bottom.

Furthermore, the number of the magnetic reed switches is two, the two magnetic reed switches are respectively movably arranged on the upper portion and the lower portion of the fixing rod, and the height of the two magnetic reed switches can be adjusted up and down.

Further, the float is of a spherical structure.

Further, the float mounting cylinder is of a vertical cylinder structure which is arranged up and down.

Further, a cylinder cap is arranged at the upper end of the float mounting cylinder, and the lower end of the cylinder cap is fixedly arranged at the upper end of the float mounting cylinder.

Further, the top surface of the cylinder cap is of a curved surface structure.

Further, the fixed rod is vertically arranged and arranged on one side of the float installation barrel in parallel, and the lower end of the fixed rod is fixedly arranged on the fixed seat.

The utility model has the beneficial effects that: a liquid level trigger device comprises a floater mounting cylinder and a trigger mechanism; the wall of the floater mounting cylinder is provided with a plurality of water inlet holes, and a floater capable of floating up and down is arranged in the floater mounting cylinder; the triggering mechanism is arranged on the outer side of the floater mounting cylinder and comprises a fixed rod, a plurality of magnetic reed switches are arranged on the fixed rod, and each magnetic reed switch can be triggered by the floater. Through the cooperation of the high-position magnetic reed switch, the low-position magnetic reed switch and the magnetic floating ball, the situation that the floating ball liquid level switch cannot normally act due to the fact that the high-position floating ball and the low-position floating ball in the prior art are mutually interfered during action can be avoided; simultaneously through the setting of inlet opening, also can avoid debris to get into in the float installation section of thick bamboo, prevent that debris card from mixing and lead to the unable normal action of floater level switch to guarantee that the drain pump normally opens and stop, promote the stability of the normal work of drain pump, ensure the cold system safety and stability operation of direct current transmission engineering valve.

Drawings

Fig. 1 is a schematic structural view of the present invention.

Names corresponding to the marks in the figure: 1. the float installation barrel comprises a float installation barrel 11, a water inlet hole 12, a magnetic float 13, a fixed seat 14, a barrel cap 2, a trigger mechanism 21, a fixed rod 22, a high-level magnetic reed switch 23 and a low-level magnetic reed switch.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments that can be derived by one of ordinary skill in the art from the embodiments given herein are intended to be within the scope of the present invention.

Example (b):

as shown in fig. 1, a liquid level trigger device includes a float mounting cylinder 1 and a trigger mechanism 2. Wherein, a plurality of water inlet holes 11 are arranged on the wall of the float mounting tube 1, the water inlet holes 11 are divided into four groups which are arranged up and down, each group comprises a plurality of rows, and each row is provided with ten water inlet holes 11. Water can enter and exit the floater mounting cylinder 1 through the water inlet hole 11, so that the liquid level in the floater mounting cylinder 1 is ensured to be consistent with the water level in the water pool; and foreign materials can be prevented from entering the inside of the float mounting cylinder 1 through the water inlet hole 11. The floater installation barrel 1 is internally provided with a spherical magnetic floater 12, and the diameter of the magnetic floater 12 is smaller than the inner diameter of the floater installation barrel 1 and can float up and down under the buoyancy action of water. The upper end of the float mounting cylinder 1 is provided with a cylinder cap 14, the lower end of the cylinder cap 14 is fixedly arranged at the upper end of the float mounting cylinder 1, and the top surface of the cylinder cap 14 is of a curved surface structure, so that sundries can conveniently slide off. The magnetic float 12 is prevented from floating up and separating from the float mounting tube 1 by the tube cap 14, and foreign matter is prevented from entering the float mounting tube 1. The lower extreme of float installation section of thick bamboo 1 is provided with fixing base 13, and fixing base 13 accessible bolt fastening is in the bottom in pond, can be with the vertical setting in the bottom in pond of float installation section of thick bamboo 1 through fixing base 13.

The trigger mechanism 2 includes a fixing lever 21, and a high-level reed switch 22 and a low-level reed switch 23 provided at upper and lower portions of the fixing lever 21, respectively. The upper and lower height of the fixed rod 21 is the same as the upper and lower height of the float mounting tube 1, and is arranged outside the float mounting tube 1 in parallel along the up-down direction, and the lower end is fixedly arranged on the fixed seat 13. Both the high-order reed switch 22 and the low-order reed switch 23 are vertically adjustable on the fixing lever 21. The high-level magnetic reed switch 22 is triggered by the magnetic floater 12, so that an internal electric loop is closed, and a signal for starting the drainage pump is sent to the control system, so that the drainage pump works; the low level reed switch 23 can be triggered by the magnetic float 12 to close the internal electrical circuit and signal the control system to stop the drain pump drain, causing the drain pump to stop working. The triggering techniques of the high-level reed switch 22 and the low-level reed switch 23 and the magnetic float 12 belong to the prior art, and are not described in detail herein.

The working principle is as follows: when the liquid level in the water tank changes, the liquid level in the floater installation cylinder 1 is the same as the liquid level in the water tank through the water inlet hole 11, so that the magnetic floater 12 floats up and down through the liquid level in the water tank. When the liquid level in the pool rises, the magnetic floater 12 floats upwards, when the liquid level rises to the position of the high-level magnetic reed switch 22, the high-level magnetic reed switch 22 is triggered to close an internal electric loop, the high-level magnetic reed switch 22 simultaneously sends a signal for starting a drainage pump to a control system, and then the drainage pump starts to work, so that the liquid level in the pool falls; when the magnetic floater 12 descends to the low-level magnetic reed switch 23, the low-level magnetic reed switch 23 is triggered to close the internal electric loop, and the low-level magnetic reed switch 23 simultaneously sends a signal for stopping the operation of the drainage pump to the control system, so that the drainage pump stops operating. Through the cooperation of high-order magnetic reed switch 22, low-order magnetic reed switch 23 and a magnetism float 12, guarantee that the drain pump normally opens and stops, promote the stability of drain pump normal work.

The liquid level trigger device is applied to a direct-current transmission engineering valve cooling system, and can avoid the situation that the floating ball liquid level switch cannot normally act due to mutual interference of high-level floating balls and low-level floating balls in the prior art when the high-level floating balls and the low-level floating balls act through the matching of the high-level magnetic reed switch 22, the low-level magnetic reed switch 23 and the magnetic floating ball 12; simultaneously through the setting of inlet opening 11, also can avoid debris to get into in the float installation section of thick bamboo 1, prevent that the debris card from mixing and leading to the unable normal action of floater level switch to guarantee that the drain pump normally opens and stop, promote the normal stability of working of drain pump, ensure the safe and stable operation of direct current transmission engineering valve cooling system. The liquid level trigger device can also be applied to the occasions related to the automatic control of the liquid level in systems such as a water tower, sewage treatment and the like.

In other embodiments, the magnetic floater can be also arranged in an ellipsoid shape, a prism shape or a cuboid shape, and the like, and the cross section of the floater mounting cylinder is correspondingly matched with the floater, so that the magnetic floater can float up and down in the floater mounting cylinder.

In other embodiments, the lower end of the fixed rod is not connected with the fixed seat, and the fixed rod is fixed by fixedly attaching the fixed rod to the outer side of the float mounting cylinder.

In other embodiments, the side wall of the float mounting cylinder is fixed on the side wall of the water tank, so that the float mounting cylinder 1 is fixed, the fixed seat with the flange structure is not arranged, the bottom plate can be arranged at the lower end of the float mounting cylinder, impurities can be prevented from entering the float mounting cylinder, and the magnetic float can be prevented from being separated from the float mounting cylinder downwards.

Claims

1. A liquid level trigger device characterized by: comprises a floater mounting cylinder and a triggering mechanism;

2. A liquid level trigger device as defined in claim 1, wherein: the lower extreme fixedly connected with fixing base of float installation section of thick bamboo, the fixing base is used for fixing in the pond bottom.

3. A liquid level trigger device as defined in claim 1, wherein: the two magnetic reed switches are movably arranged on the upper portion and the lower portion of the fixed rod respectively, and the heights of the two magnetic reed switches can be adjusted up and down.

4. A liquid level trigger device as defined in claim 1, wherein: the float is of a spherical structure.

5. A liquid level trigger device as defined in claim 1, wherein: the floater mounting cylinder is of a vertical cylinder structure which is arranged up and down.

6. A liquid level trigger device according to claim 5, wherein: the upper end of the float mounting cylinder is provided with a cylinder cap, and the lower end of the cylinder cap is fixedly arranged at the upper end of the float mounting cylinder.

7. The liquid level trigger device of claim 6, wherein: the top surface of the cylinder cap is of a curved surface structure.

8. A liquid level trigger device as defined in claim 2, wherein: the fixing rod is vertically arranged and arranged on one side of the floater mounting cylinder in parallel, and the lower end of the fixing rod is fixedly arranged on the fixing seat.