Automatic water cutting device for storage tank
The float assembly with magnetic coupling between inner and outer magnets replaces the traditional guide rod to monitor the water level in the tank in real time, solving the problem of easy damage of the float sensor and improving the reliability and life of the automatic water cut-off device of the tank.
Patent Information
- Application Number
- CN202422814275.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-11-19
- Publication Date
- 2025-09-30
- Estimated Expiration
- 2034-11-19
AI Technical Summary
Float sensors are easily damaged in storage tanks, especially in viscous or corrosive liquid environments, which affects the accuracy and reliability of the sensor.
The float assembly uses a magnetic coupling between an inner magnet and an outer magnet. The movement of the float drives the synchronous movement of the outer magnet. Combined with a position sensor, it monitors the water level in real time, replacing the traditional guide rod structure, protecting the position sensor, and improving the life and accuracy of the sensor.
It effectively solves the problem of sensor wear, improves the reliability of water level detection and the service life of the device, and enhances the automation effect of the automatic water cutting device of the storage tank.
Smart Images

Figure CN223396767U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of oil tank water cutting, in particular to an automatic water cutting device for a storage tank. Background Art
[0002] The automatic water cut-off device for storage tanks is an industrial automation equipment. Its main function is to automatically cut off the water supply when the water level in the storage tank is too high to prevent the tank from overflowing due to full water, ensuring production safety and environmental protection. This type of equipment will have a water level detection sensor inside the storage tank, which is the core part of the automatic water cut-off device and is used to detect the water level in the storage tank. The sensor can be of float type, pressure type, ultrasonic type or capacitive type. Many storage tanks will choose a float detection sensor inside, using the float to monitor the water level inside the tank, thereby measuring the amount of water inside the tank. During long-term use, the up and down movement of the float will cause wear on the guide rod or bearing, thereby affecting the accuracy and reliability of the sensor. At the same time, for viscous or corrosive liquids, float sensors may not be suitable because these liquids increase the resistance of the float movement. Utility Model Content
[0003] In view of the deficiencies in the prior art, the utility model provides an automatic water cut-off device for a storage tank, which solves the problem that a float-type sensor is easily damaged.
[0004] To achieve the above objectives, the present invention is implemented through the following technical solutions: an automatic water cutting device for a storage tank, comprising a storage tank, an upper end of the storage tank is fixedly connected to a water inlet pipe, a lower end of the storage tank is fixedly connected to a water outlet pipe, a control component is provided in the middle of one side of the storage tank, a float component is provided inside the storage tank, the float component includes a sealed cabin, a sliding groove, a float, an inner magnet, an outer magnet and a position sensor, the sealed cabin is fixedly connected to one side of the storage tank, a sliding groove is fixedly connected to the inside of the storage tank, a float is slidably provided inside the sliding groove, the float is fixedly connected to the inner magnet on the side adjacent to the storage tank, and an outer magnet is slidably provided inside the sealed cabin.
[0005] Preferably, the inner magnet and the outer magnet are magnetically coupled, and the other end of the outer magnet is fixedly connected to a position sensor.
[0006] Preferably, a through groove is provided on one side of the sliding groove.
[0007] Preferably, the control assembly includes a control box, a main controller, a wireless module and an operation panel. One side of the control box is fixedly connected to the middle of one side of the storage tank. The main controller and the wireless module are fixedly connected inside the control box, and the operation panel is fixedly connected outside the control box.
[0008] Preferably, a temperature sensor is fixedly connected to the interior of the storage tank.
[0009] Preferably, one end of the water inlet pipe and the water outlet pipe fixedly connected to the storage tank is fixedly connected to a solenoid valve.
[0010] Preferably, a fixing seat is fixedly connected to the outer side of the lower end of the storage tank, and a plurality of supporting legs are fixedly connected to the periphery of the lower surface of the fixing seat.
[0011] Beneficial effects
[0012] The utility model provides an automatic water cut-off device for a storage tank. Compared with the prior art, it has the following beneficial effects:
[0013] 1. In the present invention, by providing a float assembly, when the water level inside the storage tank changes, the float will change accordingly. By magnetic coupling between the inner magnet and the outer magnet, the outer magnet will move together when the float moves. Then, the water level is detected by a position sensor to monitor the water volume inside the storage tank. The inner and outer magnets are used to replace the guide rod, which effectively solves the problem of damage to the guide rod caused by corrosion. At the same time, the position sensor is provided inside the sealed cabin, which effectively protects the position measurement sensor, thereby increasing the service life of the float assembly, thereby improving the use effect and service life of the device and effectively improving the automation effect of water cutting in the storage tank. BRIEF DESCRIPTION OF THE DRAWINGS
[0014] Figure 1 This is a schematic diagram of the three-dimensional structure of an automatic water cutting device for a storage tank proposed by the utility model;
[0015] Figure 2 This is a schematic diagram of the internal structure of a storage tank in an automatic water cut-off device for a storage tank proposed in the utility model;
[0016] Figure 3 This is a schematic diagram of the structure of a float assembly of an automatic water cut-off device for a storage tank proposed by the utility model;
[0017] Figure 4 This is a schematic diagram of the control component structure of an automatic water cutting device for a storage tank proposed in the utility model.
[0018] Legend:
[0019] 1. Storage tank; 2. Water inlet pipe; 3. Float assembly; 301. Sealed cabin; 302. Sliding groove; 303. Float; 304. Inner magnet; 305. Outer magnet; 306. Position sensor; 4. Control assembly; 401. Control box; 402. Main controller; 403. Wireless module; 404. Operation panel; 5. Fixing base; 6. Support leg; 7. Water outlet pipe; 8. Solenoid valve; 9. Temperature sensor. DETAILED DESCRIPTION
[0020] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.
[0021] See also Figure 1-Figure 4 , the utility model provides two technical solutions, specifically including the following embodiments:
[0022] Example 1:
[0023] A storage tank automatic water cut-off device includes a storage tank 1, an upper end of the storage tank 1 is fixedly connected to a water inlet pipe 2, and a lower end of the storage tank 1 is fixedly connected to a water outlet pipe 7, which is responsible for the inlet and outlet of the storage tank 1. A control component 4 is provided in the middle of one side of the storage tank 1 to control the entire device. A float assembly 3 is provided inside the storage tank 1, and the float assembly 3 includes a sealed cabin 301, a sliding groove 302, a float 303, an inner magnet 304, an outer magnet 305 and a position sensor 306. The sealed cabin 301 is fixedly connected to one side of the storage tank 1, a sliding groove 302 is fixedly connected to the inside of the storage tank 1, and a float 303 is slidingly provided inside the sliding groove 302. 03. The float 303 slides inside the sliding groove 302 to track the water level. The sliding groove 302 can prevent the float 303 from deviating. The float 303 is fixedly connected to the side adjacent to the storage tank 1 with an inner magnet 304. The sealed cabin 301 is slidingly provided with an outer magnet 305. The inner magnet 304 and the outer magnet 305 are magnetically coupled, and the inner magnet 304 and the outer magnet 305 move synchronously to achieve the effect of monitoring the water level. The other end of the outer magnet 305 is fixedly connected to a position sensor 306. A through groove is provided on one side of the sliding groove 302 to facilitate the liquid to enter the sliding groove 302 to achieve water level synchronization.
[0024] During operation, when the water level inside the storage tank 1 changes, the float 303 inside the sliding groove 302 rises and falls synchronously with the water level. When the float 303 moves, the inner magnet 304 on one side of the float 303 also moves together, and then drives the outer magnet 305 inside the sealed cabin 301 to move together through magnetic coupling, and then the position sensor 306 monitors the position in real time to monitor the water level in the storage tank 1.
[0025] Example 2:
[0026] On the basis of Example 1, the control component 4 includes a control box 401, a main controller 402, a wireless module 403 and an operation panel 404. One side of the control box 401 is fixedly connected to the middle of one side of the storage tank 1. The main controller 402 and the wireless module 403 are fixedly connected inside the control box 401. The main controller 402 is responsible for controlling all the equipment of the device. The wireless module 403 transmits the water volume information to the mobile terminal of the staff in real time, which is convenient for the staff to grasp the water volume in real time. The outside of the control box 401 is fixedly connected to the operation panel 404, which is convenient for the staff to control. The inside of the storage tank 1 is fixedly connected to a temperature sensor 9 to monitor the water temperature in real time. One end of the water inlet pipe 2 and the water outlet pipe 7 fixedly connected to the storage tank 1 is fixedly connected to a solenoid valve 8. The outside of the lower end of the storage tank 1 is fixedly connected to a fixing seat 5, and a plurality of support legs 6 are fixedly connected to the lower surface of the fixing seat 5.
[0027] The main controller 402 is responsible for controlling all the devices of the device. The wireless module 403 transmits the water volume information to the staff's mobile terminal in real time, so that the staff can grasp the water volume in real time. The operation panel 404 is convenient for the staff to control the device.
[0028] The above description is only a preferred embodiment of the present application and is not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the application should be included in the scope of protection of the present application.
Claims
1. An automatic water cut-off device for a storage tank, comprising a storage tank (1), wherein the upper end of the storage tank (1) is penetrated and fixedly connected with a water inlet pipe (2), and the lower end of the storage tank (1) is penetrated and fixedly connected with a water outlet pipe (7), characterized in that: A control assembly (4) is provided in the middle of one side of the storage tank (1), a float assembly (3) is provided inside the storage tank (1), the float assembly (3) comprises a sealed cabin (301), a sliding groove (302), a float (303), an inner magnet (304), an outer magnet (305) and a position sensor (306), the sealed cabin (301) is fixedly connected to one side of the storage tank (1), the sliding groove (302) is fixedly connected inside the storage tank (1), a float (303) is slidably provided inside the sliding groove (302), the float (303) is fixedly connected to the side adjacent to the storage tank (1) with the inner magnet (304), and the outer magnet (305) is slidably provided inside the sealed cabin (301).
2. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: The inner magnet (304) and the outer magnet (305) are magnetically coupled, and the other end of the outer magnet (305) is fixedly connected to a position sensor (306).
3. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: A through groove is provided on one side of the sliding groove (302).
4. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: The control assembly (4) comprises a control box (401), a main controller (402), a wireless module (403) and an operation panel (404); one side of the control box (401) is fixedly connected to the middle of one side of the storage tank (1); the main controller (402) and the wireless module (403) are fixedly connected inside the control box (401); and the operation panel (404) is fixedly connected outside the control box (401).
5. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: A temperature sensor (9) is fixedly connected inside the storage tank (1).
6. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: One end of the water inlet pipe (2) and the water outlet pipe (7) fixedly connected to the storage tank (1) is fixedly connected to a solenoid valve (8).
7. The automatic water cut-off device for a storage tank according to claim 1, characterized in that: A fixing seat (5) is fixedly connected to the outer side of the lower end of the storage tank (1), and a plurality of supporting legs (6) are fixedly connected to the periphery of the lower surface of the fixing seat (5).