Side-mounted tuning fork type liquid level switch maintenance device
By designing components such as the maintenance ball valve, detection cylinder, air-side balance pipe and drain pipe on the tuning fork liquid level switch, the problem of inconvenient maintenance of the tuning fork liquid level switch is solved, safe and efficient disassembly and replacement are achieved, leakage of materials in the storage tank is avoided, and stable operation of the equipment is ensured.
Patent Information
- Application Number
- CN202422650208.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-10-31
- Publication Date
- 2025-09-12
- Estimated Expiration
- 2034-10-31
AI Technical Summary
Existing tuning fork liquid level switches are prone to causing material leakage in storage tanks during maintenance, posing a safety hazard, and are inconvenient to disassemble and replace.
A side-mounted tuning fork liquid level switch maintenance device is designed, which includes a maintenance ball valve, a detection cylinder, a gas-side balancing pipe, a gas-phase balancing valve, and a drain pipe. Through the coordinated work of these components, the controllable isolation and maintenance of the liquid level switch can be achieved to avoid material leakage.
It enables the safe and efficient removal and replacement of the tuning fork liquid level switch without affecting the normal operation of the storage tank, avoids material leakage, and ensures the safety and stability of the equipment.
Smart Images
Figure CN223332450U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the technical field of tuning fork type liquid level switches, in particular to a side-mounted tuning fork type liquid level switch maintenance device. Background Art
[0002] There are many liquid storage tanks in chemical companies. In order to prevent the tanks from overflowing or becoming empty and ensure the safety of the tanks, in addition to designing a continuous measurement liquid level gauge, a high and low liquid level switch is also designed. The liquid level gauge and the liquid level switch are interlocked to ensure the safe operation of the storage tanks and other equipment.
[0003] Tuning fork level switches are a common type of liquid level measuring instrument used in the food, pharmaceutical, water conservancy, chemical, and environmental protection industries. They are used to measure liquid levels in containers, tanks, and various pipelines. A tuning fork level switch is driven by a crystal to generate vibrations. When the tuning fork is submerged in liquid, the vibration frequency changes. This frequency change is detected by electronic circuitry and outputs a switching value.
[0004] After the tuning fork level switch has been running for a period of time, the vibration frequency of the tuning fork may change due to entanglement of debris, causing the tuning fork level switch to output an erroneous signal. In this case, the tuning fork level switch needs to be repaired or replaced. Figure 1 As shown, the tuning fork level switch 2 is often mounted directly to the detection hole on the side of the tank body 1 via a flange. Directly pulling out the tuning fork level switch can cause leakage of the material in the tank or the gas above, which can cause an accident. Therefore, the tuning fork level switch needs to be equipped with an inspection device to allow it to be removed for inspection or replacement when troubleshooting the tuning fork level switch. Summary of the Invention
[0005] The technical problem to be solved by the utility model is to provide a side-mounted tuning fork type liquid level switch maintenance device, which solves the problem that the tuning fork type liquid level switch is inconvenient to repair and disassemble.
[0006] In order to solve the above technical problems, the technical solution adopted by the present invention is:
[0007] A side-mounted tuning fork liquid level switch maintenance device comprises a liquid level switch maintenance device connected to a tank body, the liquid level switch maintenance device is detachably connected to the tuning fork liquid level switch, and the liquid level switch maintenance device is further provided with a valve body controllably isolated from the tank body.
[0008] The above-mentioned liquid level switch maintenance device includes a maintenance ball valve connected to one end of the tank body, the other end of the maintenance ball valve is connected to the detection cylinder, the detection cylinder is detachably connected to the tuning fork type liquid level switch, and when the detection cylinder is connected to the tuning fork type liquid level switch, the tuning fork type liquid level switch extends into the detection cylinder.
[0009] The detection cylinder is provided with a sewage pipe, and the sewage pipe is provided with a sewage valve.
[0010] The detection cylinder is provided with a gas-side balancing pipe, which is connected to the tank body and has a gas-phase balancing valve.
[0011] The above-mentioned maintenance ball valve, gas phase balancing valve and drain valve are controlled by the maintenance switch, and the maintenance switch controls the power supply of the maintenance power supply to make the maintenance ball valve, gas phase balancing valve and drain valve controlled to open and close.
[0012] The utility model provides a side-mounted tuning fork type liquid level switch maintenance device. On the basis of conventional installation, the liquid level switch maintenance device is composed of an additional maintenance ball valve, a detection cylinder, a gas side balancing pipe, a gas phase balancing valve, a drain pipe and a drain valve. When the liquid level switch fails, maintenance can be carried out, thereby ensuring stable and efficient operation of the liquid level switch. BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The present invention will be further described below with reference to the accompanying drawings and embodiments:
[0014] Figure 1 This is the installation diagram of a conventional liquid level switch;
[0015] Figure 2 This is the installation diagram after adding the liquid level switch maintenance device to the utility model;
[0016] Figure 3 This is the electrical schematic diagram of the utility model.
[0017] In the figure: tank body 1, tuning fork liquid level switch 2, liquid level switch maintenance device 3, maintenance ball valve 4, detection cylinder 5, gas side balance pipe 6, gas phase balance valve 7, drain pipe 8, drain valve 9, maintenance switch 10, maintenance power supply 11. DETAILED DESCRIPTION
[0018] like Figure 2 As shown in the figure, a side-mounted tuning fork liquid level switch maintenance device includes a liquid level switch maintenance device 3 connected to the tank body 1, the liquid level switch maintenance device 3 is detachably connected to the tuning fork liquid level switch 2, and the liquid level switch maintenance device 3 is also provided with a valve body that is controllably isolated from the tank body 1.
[0019] The above-mentioned liquid level switch maintenance device 3 includes a maintenance ball valve 4 connected to one end of the tank body 1, and the other end of the maintenance ball valve 4 is connected to the detection tube 5. The detection tube 5 is detachably connected to the tuning fork type liquid level switch 2. When the detection tube 5 is connected to the tuning fork type liquid level switch 2, the tuning fork type liquid level switch 2 extends into the detection tube 5.
[0020] The detection cylinder 5 is provided with a sewage pipe 8 , and the sewage pipe 8 is provided with a sewage valve 9 .
[0021] The detection cylinder 5 is provided with a gas-side balancing pipe 6 , which is in communication with the tank body 1 , and a gas-phase balancing valve 7 is provided on the gas-side balancing pipe 6 .
[0022] The above-mentioned maintenance ball valve 4, gas phase balancing valve 7 and drain valve 9 are controlled by the maintenance switch 10, and the maintenance switch 10 controls the power supply of the maintenance power supply 11 to control the maintenance ball valve 4, gas phase balancing valve 7 and drain valve 9 to open and close.
[0023] like Figure 2 As shown, the present invention first installs a liquid level switch maintenance device 3 on the detection hole flange on the side of the tank body 1. The liquid level switch maintenance device 3 includes a maintenance ball valve 4, a detection cylinder 5, a gas side balancing pipe 6, a gas phase balancing valve 7, a drain pipe 8 and a drain valve 9, and then installs the tuning fork liquid level switch 2 on the flange of the liquid level switch maintenance device 3.
[0024] Example 1:
[0025] Add liquid level switch maintenance device 3. Figure 2 As shown, a liquid level switch maintenance device 3 is installed on the detection hole flange on the side of the tank body 1, and the tuning fork liquid level switch 2 is connected to the liquid level switch maintenance device 3 through the flange.
[0026] The liquid level switch maintenance device includes a maintenance ball valve 4. The valve body material of the maintenance ball valve 4 is consistent with the material of the storage tank 1, and the pressure level meets the pressure requirement of the storage tank 1. The maintenance ball valve is manually controlled. This valve is opened when the tuning fork liquid level switch is in operation. This valve is closed when the tuning fork liquid level switch needs to be repaired or replaced.
[0027] The liquid level switch inspection device includes a detection cylinder 5, made of the same material as the storage tank 1 and with a pressure rating that meets the required pressure of the storage tank 1. The detection cylinder 5 forms an 87° angle with the mounting flange. After installation, the detection cylinder 5 is tilted upward by 3°, facilitating the flow of air and liquid into and out of the cylinder.
[0028] The liquid level switch maintenance device includes a gas-side balancing pipe 6 and a gas-phase balancing valve 7. The material of the gas-side balancing pipe 6 is consistent with that of the storage tank 1, and the pressure level meets the pressure requirements of the storage tank 1. The gas-phase balancing valve is manually controlled. This valve is open when the tuning-fork liquid level switch is in operation and closed when the tuning-fork liquid level switch needs to be repaired or replaced. When the liquid in the storage tank 1 gradually overflows the detection tube 5, the gas in the detection tube 5 is connected to the gas in the upper part of the tank body 1 through the gas-side balancing pipe 6 because the detection tube 5 is tilted upward at 3°. This allows the liquid to flow smoothly into the detection tube 5, ensuring that the tuning-fork liquid level switch can contact the liquid and send a switch signal.
[0029] The liquid level switch maintenance device includes a drain pipe 8 and a drain valve 9. The drain pipe 8 is made of the same material as the storage tank 1, and its pressure level meets the pressure requirements of the storage tank 1. The drain valve is manually controlled and closed when the tuning fork liquid level switch is operating. It is opened when the tuning fork liquid level switch needs to be repaired or replaced, or when the liquid level switch maintenance device needs to be cleaned.
[0030] like Figure 2 As shown: When the tuning fork liquid level switch is operating normally, the inspection ball valve 4 and the gas phase balancing valve 7 are open, the drain valve 9 is closed, and the liquid in the storage tank 1 flows into and out of the detection cylinder 5 normally, so that the tuning fork liquid level switch 2 operates normally. If the tuning fork liquid level switch 2 is abnormal or there is a foreign object in the liquid level switch inspection device 3, close the inspection ball valve 4 and the gas phase balancing valve 7, open the drain valve 9, and then remove the tuning fork liquid level switch 2 for inspection and replacement, and clean the liquid level switch inspection device 3.
[0031] Example 2:
[0032] like Figure 3 As shown in the figure, the maintenance state is controlled by the maintenance switch 10 to control the relay K1 so that the maintenance ball valve 4, the gas phase balancing valve 7 and the drain valve 9 are controlled to open or close. When the maintenance switch 10 is not powered on, the relay K1 is not powered on, and the normally closed auxiliary switch connected to the maintenance ball valve 4 and the gas phase balancing valve 7 is in a connected state. The maintenance ball valve 4 and the gas phase balancing valve 7 are powered on and opened. When the maintenance switch 10 is closed and powered on, the normally closed auxiliary switch is immediately disconnected, and the maintenance ball valve 4 and the gas phase balancing valve 7 lose power and close. The normally open auxiliary switch connected to the drain valve 9 is a delayed closing switch. After the delay time is reached, the drain valve 9 is energized to drain the liquid in the detection cylinder 5. After the liquid is drained, the connection between the tuning fork liquid level switch 2 and the detection cylinder 5 can be disconnected.
Claims
1. A side-mounted tuning fork liquid level switch maintenance device, characterized in that: The liquid level switch maintenance device (3) is connected to the tank body (1), the liquid level switch maintenance device (3) is detachably connected to the tuning fork type liquid level switch (2), and the liquid level switch maintenance device (3) is also provided with a valve body that is controllably isolated from the tank body (1); The liquid level switch inspection device (3) includes an inspection ball valve (4) connected to one end of the tank body (1), the other end of the inspection ball valve (4) is connected to the detection tube (5), the detection tube (5) is detachably connected to the tuning fork type liquid level switch (2), and when the detection tube (5) is connected to the tuning fork type liquid level switch (2), the tuning fork type liquid level switch (2) extends into the detection tube (5); The detection cylinder (5) is provided with a sewage pipe (8), and the sewage pipe (8) is provided with a sewage valve (9); The detection cylinder (5) is provided with a gas-side balancing pipe (6), the gas-side balancing pipe (6) is connected to the tank body (1), and a gas-phase balancing valve (7) is provided on the gas-side balancing pipe (6).
2. A side-mounted tuning fork liquid level switch maintenance device according to claim 1, characterized in that: The maintenance ball valve (4), the gas phase balancing valve (7) and the drain valve (9) are controlled by the maintenance switch (10). The maintenance switch (10) controls the power supply of the maintenance power supply (11) so that the maintenance ball valve (4), the gas phase balancing valve (7) and the drain valve (9) are controlled to open and close.