Liquid level detection device for cooling liquid of closed cooling tower
By using a device combining a float and a rangefinder in a closed-circuit cooling tower, the coolant is automatically detected and replenished, solving the problem of requiring manual observation of the liquid level in traditional closed-circuit cooling towers and realizing automated management of the coolant.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QUANZHOU RUILING COOLING EQUIPMENT CO LTD
- Filing Date
- 2025-05-12
- Publication Date
- 2026-04-28
AI Technical Summary
Traditional closed-loop cooling towers cannot automatically detect coolant levels, requiring manual observation and addition of coolant, which can lead to delays in replenishment.
The device combines a float and a rangefinder. The rangefinder detects the position of the float and automatically controls the opening and closing of the solenoid valve to achieve automatic replenishment of coolant.
It enables automatic detection and timely replenishment of coolant level, reducing manual intervention and ensuring normal operation of the cooling tower.
Smart Images
Figure CN224175926U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of closed cooling tower technology, and in particular to a closed cooling tower coolant level detection device. Background Technology
[0002] A closed-circuit cooling tower is a device that indirectly cools circulating fluids through a closed coil. Its core principle is to use sprayed water to evaporate and absorb heat on the outer wall of the coil, while combined with forced air convection, to transfer the heat of the circulating fluid inside the coil to the outside. Unlike traditional open-circuit cooling towers, the cooling medium in a closed-circuit cooling tower circulates in a closed system throughout the entire process, avoiding direct contact with the air, thus effectively preventing water pollution and evaporation loss.
[0003] As the core medium in the heat exchange process of a closed-circuit cooling tower, the stability of the coolant level is the basis for the normal operation of the cooling tower. Traditional closed-circuit cooling towers have transparent tubes on the side for observing the coolant level. When the coolant level is low, the cap needs to be opened manually to add coolant, which cannot effectively detect the coolant level and add coolant. Utility Model Content
[0004] The purpose of this invention is to address the shortcomings of existing technologies by proposing a closed-loop cooling tower coolant level detection device.
[0005] To achieve the above objectives, the present invention adopts the following technical solution:
[0006] A closed-loop cooling tower coolant level detection device includes a closed-loop cooling tower body, a baffle is provided on the side of the closed-loop cooling tower body, a coolant storage tank is attached to the outside of the baffle, a limiting vertical frame is provided on the inside of the baffle, a float is movably installed in the limiting vertical frame and the float is in contact with the inner wall of the limiting vertical frame, and a rangefinder is embedded in the top of the closed-loop cooling tower body, the rangefinder is located directly above the limiting vertical frame and the rangefinder is matched with the float.
[0007] Furthermore, in a preferred configuration, a coolant inlet is provided at one end of the coolant storage tank.
[0008] In addition, a preferred structure is that the lower part of the baffle has a placement groove.
[0009] In addition, a preferred configuration is that the coolant storage tank has an output pipe at the bottom, and a solenoid valve is installed on the output pipe.
[0010] Furthermore, in a preferred configuration, the solenoid valve is adapted to the rangefinder, and a portion of the output tube is located within the placement slot along with the solenoid valve.
[0011] In addition, a preferred structure is that the limiting vertical frame has several through holes.
[0012] The beneficial effects of this utility model are as follows:
[0013] In this invention, the rangefinder can detect the distance between the float and itself, and thus detect the coolant level. When the level is too low, the solenoid valve is energized and opens the output pipe to replenish the coolant to the main body of the closed cooling tower. There is no need for manual observation and addition of coolant, which effectively detects the coolant level and adds coolant in a timely manner. Attached Figure Description
[0014] Figure 1 This is a schematic diagram of the overall structure of a closed-loop cooling tower coolant level detection device proposed in this utility model.
[0015] Figure 2 This is a partial cross-sectional structural diagram of a closed-loop cooling tower coolant level detection device proposed in this utility model;
[0016] Figure 3 This is a schematic diagram of the baffle structure of a closed-loop cooling tower coolant level detection device proposed in this utility model;
[0017] Figure 4 This is a schematic diagram of the coolant storage tank and baffle of a closed cooling tower coolant level detection device proposed in this utility model;
[0018] Figure 5 This is a schematic diagram of the baffle cross-section structure of a closed-loop cooling tower coolant level detection device proposed in this utility model;
[0019] Figure 6 This is a schematic diagram of the coolant storage tank structure of a closed-loop cooling tower coolant level detection device proposed in this utility model;
[0020] Figure 7 This is a schematic diagram of the limiting vertical frame structure of a closed cooling tower coolant level detection device proposed in this utility model.
[0021] In the diagram: 1 Closed cooling tower body, 2 Baffle, 21 Placement slot, 3 Coolant storage tank, 31 Coolant inlet, 4 Float, 5 Output pipe, 6 Solenoid valve, 7 Rangefinder, 8 Limiting frame, 81 Through hole. Detailed Implementation
[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments.
[0023] Reference Figure 1-7A closed-loop cooling tower coolant level detection device includes a closed-loop cooling tower body 1, a baffle 2 on the side of the closed-loop cooling tower body 1, a coolant storage tank 3 hanging outside the baffle 2, a limiting vertical frame 8 on the inner side of the baffle 2, a float 4 movably disposed in the limiting vertical frame 8 and in contact with the inner wall of the limiting vertical frame 8, and a rangefinder 7 embedded in the top of the closed-loop cooling tower body 1, the rangefinder 7 being located directly above the limiting vertical frame 8 and matched with the float 4.
[0024] The coolant storage tank 3 is provided with a coolant inlet 31 at one end, through which coolant is added to the coolant storage tank 3.
[0025] Meanwhile, a placement slot 21 is provided on the lower part of the baffle 2.
[0026] Furthermore, the coolant storage tank 3 is equipped with an output pipe 5 at the bottom, and a solenoid valve 6 is installed on the output pipe 5. The solenoid valve 6 is compatible with the rangefinder 7. When the rangefinder 7 detects that the distance of the float 4 reaches a predetermined value, the solenoid valve 6 will be energized or de-energized, thereby controlling the output of coolant.
[0027] Meanwhile, part of the output pipe 5 and the solenoid valve 6 are located in the placement slot 21.
[0028] Furthermore, the limiting vertical frame 8 has several through holes 81, so that the float 4 changes with the coolant level within the limiting vertical frame 8.
[0029] In this embodiment, when the coolant level in the closed-circuit cooling tower body 1 is low, the coolant level will drop, and the float 4 will also drop synchronously within the limiting vertical frame 8. At this time, the rangefinder 7 detects that the float 4 is getting further and further away from its own position. When it reaches a certain value, the solenoid valve 6 will be energized, thereby opening the output pipe 5. The coolant in the coolant storage tank 3 will then enter the closed-circuit cooling tower body 1 through the output pipe 5 to replenish the closed-circuit cooling tower body 1. As the coolant level increases, the float 4 will also rise synchronously within the limiting vertical frame 8 as the horizontal level rises. At this time, the float 4 will get closer and closer to the rangefinder 7. When the rangefinder 7 detects that the distance between the float 4 and its own position reaches a predetermined value, the solenoid valve 6 will be de-energized, thereby closing the output pipe 5 and canceling the replenishment of the closed-circuit cooling tower body 1.
[0030] In this invention, the rangefinder 7 can detect the distance between the float 4 and itself, and thus detect the coolant level. When the coolant level is too low, the solenoid valve 6 is energized and opens the output pipe 5 to replenish the coolant to the closed cooling tower body 1. There is no need for manual observation and addition of coolant. The coolant level is effectively detected and coolant is added in a timely manner.
[0031] The above description is only a preferred embodiment of the present utility model, but the protection scope of the present utility model is not limited thereto. Any equivalent substitutions or changes made by those skilled in the art within the technical scope disclosed in the present utility model, based on the technical solution and the inventive concept of the present utility model, should be included within the protection scope of the present utility model.
Claims
1. A closed-loop cooling tower coolant level detection device, comprising a closed-loop cooling tower body (1), characterized in that, The closed cooling tower body (1) is provided with a baffle (2) on the side, and a coolant storage tank (3) is hung on the outside of the baffle (2). A limiting vertical frame (8) is provided on the inside of the baffle (2). A float (4) is movably installed in the limiting vertical frame (8), and the float (4) is in contact with the inner wall of the limiting vertical frame (8). A rangefinder (7) is embedded in the top of the closed cooling tower body (1). The rangefinder (7) is located directly above the limiting vertical frame (8), and the rangefinder (7) matches the float (4).
2. The closed-loop cooling tower coolant level detection device according to claim 1, characterized in that, The coolant storage tank (3) has a coolant inlet (31) at one end.
3. The closed-loop cooling tower coolant level detection device according to claim 1, characterized in that, The lower part of the baffle (2) has a placement groove (21).
4. The closed-loop cooling tower coolant level detection device according to claim 1, characterized in that, The coolant storage tank (3) is provided with an output pipe (5) at the bottom, and a solenoid valve (6) is installed on the output pipe (5).
5. The closed-loop cooling tower coolant level detection device according to claim 4, characterized in that, The solenoid valve (6) is adapted to the rangefinder (7), and part of the output pipe (5) is located in the placement slot (21) along with the solenoid valve (6).
6. The closed-loop cooling tower coolant level detection device according to claim 1, characterized in that, The limiting vertical frame (8) has several through holes (81).