Auxiliary detection mechanism and water rising alarm system

Abstract

The utility model relates to the technical field of water swelling detection, in particular to an auxiliary detection mechanism and a water swelling alarm system. The supporting assembly comprises a protective cylinder, the outer wall of the protective cylinder is inclined, and the inner wall is in an inverted-cone shape; the detection assembly comprises an extension opening and a seepage hole formed in the outer wall of the protection cylinder in a penetrating mode. A current conversion module, a relay module and a digital quantity input module; the current conversion module receives the main voltage and converts the main voltage into safe direct current; after the relay module is connected with the current conversion module, a KA contact is closed; the safe direct current is connected with the digital quantity input module through a KA contact to trigger an alarm. The device can be used for detecting nonmetal objects such as water, the detection reliability is higher, the cup-shaped structure is adopted, the proximity switch probe is installed in the cup, substances except liquid can be effectively isolated, false detection of the proximity switch is prevented, the alarm timeliness is high, and a finish rolling steel rolling operator can be reminded in time to find alarm information.

Description

Technical Field

[0001] This utility model relates to the field of water level detection technology, and in particular to an auxiliary detection mechanism and a water level alarm system. Background Technology

[0002] Currently, monitoring for water accumulation in the lower arm box of the C-stand of the thickness gauge at the finishing mill exit of hot-rolled strip mills primarily relies on manual inspection. During line shutdowns for maintenance, maintenance personnel remove the lower arm box of the thickness gauge C-stand to check for water accumulation. Because removing the box is a cumbersome process, typically taking about two hours, water accumulation checks can only be scheduled during weekly maintenance. However, manual inspection is time-consuming and labor-intensive, and carries the risk of missed checks. It cannot promptly detect sudden water accumulation problems. If the box's sealing suddenly deteriorates, accelerating water accumulation, it may damage the equipment before the next inspection, affecting production safety. Traditional manual inspection methods rely on human observation and judgment, which are subjective and prone to error, making it impossible to guarantee the accuracy of the test results.

[0003] Therefore, there is a need for a reliable device that can monitor the water level in the tank in real time, issue alarms to notify operators and maintenance personnel to handle the situation, and promptly eliminate potential safety hazards. This is to meet the needs of the current environment. Utility Model Content

[0004] The purpose of this section is to outline some aspects of the embodiments of this utility model and to briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this section, as well as in the abstract and title of this application, to avoid obscuring the purpose of this section, the abstract and the title of this utility model. Such simplifications or omissions shall not be used to limit the scope of this utility model.

[0005] Given that manual inspection in the aforementioned existing technologies requires a lot of time and manpower, and there is a risk of missed inspections, it is impossible to detect sudden water accumulation problems in a timely manner. Once the sealing of the enclosure suddenly deteriorates and the water accumulation speed accelerates, it may cause equipment damage before the next inspection, affecting production safety.

[0006] Therefore, the technical problem to be solved by this utility model is to design a device with a reliable structure that can monitor the water level in the tank in real time, issue an alarm to notify operators and maintenance personnel to handle the situation, and promptly eliminate safety hazards, in order to meet the needs of the current environment.

[0007] To solve the above-mentioned technical problems, this utility model provides the following technical solution: an auxiliary detection mechanism, comprising,

[0008] The support assembly includes a protective cylinder, wherein the outer wall of the protective cylinder is inclined and the inner wall is arranged in an inverted cone shape;

[0009] The detection component includes an extension port and a seepage hole extending through the outer wall of the protective cylinder.

[0010] As an improvement to this utility model

[0011] The extension port is fixedly installed on the top of the protective cylinder, and a sealing element is installed on the surface of the extension port.

[0012] As an improvement to this utility model

[0013] The seepage hole surrounds the protective cylinder, and the seepage hole is located slightly below the outer wall of the protective cylinder. A winding surface is fixedly provided at the bottom edge of the protective cylinder.

[0014] A flood alarm system includes,

[0015] Current conversion module, relay module, digital input module;

[0016] The current conversion module receives the main voltage and converts it to safe DC power;

[0017] After the relay module connects to the current conversion module, it closes the KA contact.

[0018] A safe DC current is applied through the KA contact to the digital input module, triggering an alarm.

[0019] As an improvement to this utility model

[0020] The main voltage input terminal is connected to the current conversion module;

[0021] The positive terminal of the current conversion module is connected to the proximity switch, and the proximity switch is connected to the positive terminal of the relay module.

[0022] As an improvement to this utility model

[0023] The positive and negative terminals of the digital input module are connected to the alarm control circuit respectively;

[0024] The digital input module DI is connected to the KA contact, and the other end of the KA contact is connected to the current conversion module.

[0025] As an improvement to this utility model

[0026] The digital input module includes a signal terminal and an alarm terminal;

[0027] The signal terminal is electrically connected to the DI point in the digital input module;

[0028] The alarm terminal is equipped with an input port, which is electrically connected to the signal terminal.

[0029] As an improvement to this utility model

[0030] The signal terminal transmits signals, and the alarm terminal is activated through the input port;

[0031] The alarm terminal is equipped with an output port, through which an alarm is emitted;

[0032] The alarm terminal is connected to a reset port.

[0033] As an improvement to this utility model

[0034] The reset port is connected to the reset terminal on one side.

[0035] After the reset terminal is activated, it transmits a shutdown reset signal to the alarm terminal through the reset port.

[0036] The beneficial effects of this utility model are as follows: it can be used to detect non-metallic objects such as water, with higher detection reliability. The cup-shaped structure, which installs the proximity switch probe inside the cup, can effectively isolate substances other than liquids, prevent false detections by the proximity switch, and has high alarm timeliness, which can promptly remind the steel rolling mill operators to detect alarm information. Attached Figure Description

[0037] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the description of the embodiments will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort. Among them:

[0038] Figure 1 This is a planar side view of the auxiliary detection mechanism in this utility model.

[0039] Figure 2 This is a top plan view of the auxiliary detection mechanism in this utility model.

[0040] Figure 3 This is the control circuit diagram of the flood alarm system in this utility model.

[0041] Figure 4 This is a flowchart of the flood alarm system program in this utility model. Detailed Implementation

[0042] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, the specific embodiments of this utility model will be described in detail below with reference to the accompanying drawings.

[0043] Example 1

[0044] Reference Figure 1 This embodiment provides an auxiliary detection mechanism.

[0045] The support component 1 can be made of 316 stainless steel, which has good corrosion resistance and mechanical strength, and is suitable for high-temperature and humid industrial environments. The protective cylinder 11 is cylindrical or conical in shape, with an outer wall inclination angle of 15~30° and an inner wall inverted conical shape with an inverted conical angle of 5~10°. The inclined outer wall and the inverted conical inner wall facilitate the flow of liquid and its concentration at the bottom of the protective cylinder.

[0046] The lower part of the protective sleeve 11 is provided with seepage holes 22, with a diameter of 1mm to 3mm, which allows liquid to seep in while preventing solid impurities from entering. The number of seepage holes can be adjusted according to actual needs, for example, 2 to 4 holes can be provided.

[0047] The protective sleeve 11 is installed at the bottom of the lower arm housing of the thickness gauge's C-frame using a fixing device, such as bolts or adhesive. The fixing device must ensure the stability and sealing of the protective sleeve. The bolt material can be the same 316 stainless steel as the protective sleeve, and the adhesive must be a high-temperature resistant and corrosion-resistant adhesive.

[0048] The detection component 2 includes an extension port 21, the shape of which matches the inner wall shape of the protective cylinder 11. The length of the extension port 21 can be adjusted according to the installation position of the main detection mechanism. The extension port 21 connects to the main detection mechanism, such as the detection probe of a capacitive proximity switch. The connection method can be a threaded connection or a plug-in connection, ensuring a firm and airtight connection. The material of the connector can be the same 316 stainless steel or corrosion-resistant plastic as the protective cylinder. The detection probe of the main detection mechanism extends into the interior of the protective cylinder 11, connecting with the cup-shaped structure (attached). Figure 1 The detection probe is the same as that used in [the previous section], and is used to detect liquid level. The material of the detection probe needs to be corrosion-resistant, such as stainless steel or titanium alloy.

[0049] When water accumulates at the bottom of the lower arm housing of the thickness gauge C-frame, the water flows into the interior of the protective cylinder 11 through the seepage hole 22 on the outer wall of the protective cylinder. Since the inner wall of the protective cylinder is inverted conical, the accumulated water will concentrate at the bottom of the protective cylinder and flow into the extension port 21. The extension port guides the accumulated water to the detection probe of the main detection mechanism, triggering the alarm program.

[0050] Example 2

[0051] Reference Figures 1-4 This embodiment is based on the previous embodiment, and differs from the previous embodiment in that:

[0052] The bottom edge of the protective cylinder 11 is fixedly provided with a winding surface 111, which is made of corrosion-resistant material. The winding surface 111 can prevent water from seeping upward along the outer wall of the protective cylinder. If there is no fixing device or adhesive on site, the winding surface 111 can also play a role in properly depositing water, thereby improving the placement stability and balance of the entire support assembly 1.

[0053] A seal 211, such as an O-ring or sealant, is installed on the surface of the extension port 21 to prevent liquid from leaking between the extension port and the protective sleeve and damaging the main detection mechanism.

[0054] When water accumulates at the bottom of the lower arm housing of the thickness gauge C-frame, the water flows into the interior of the protective cylinder 11 through the seepage hole 22 on the outer wall of the protective cylinder. Because the inner wall of the protective cylinder is inverted conical, the accumulated water will concentrate at the bottom of the protective cylinder and flow into the extension port 21. The extension port guides the accumulated water to the detection probe of the main detection mechanism, triggering the alarm program. The winding surface 111 prevents water from seeping upwards along the outer wall of the protective cylinder, and the seal 211 prevents liquid leakage between the extension port and the protective cylinder, thereby improving the sealing performance of the device.

[0055] The seepage holes 22 surround the protective cylinder and are located slightly below the outer wall of the protective cylinder. This ensures that accumulated water can flow smoothly into the interior of the protective cylinder, improving the accuracy of the detection. This auxiliary detection mechanism can be applied to the water rise alarm device of the lower arm of the C-frame of a precision rolling thickness gauge, serving as an auxiliary to the main detection mechanism to improve the reliability and accuracy of the detection and enhance the sealing of the device.

[0056] Example 3

[0057] Reference Figures 1-4 This embodiment is based on the previous embodiment, and differs from the previous embodiment in that:

[0058] The current conversion module 4 receives the main voltage (e.g., 220V or 380V) and converts it into safe DC power (e.g., 24V) to provide a stable power supply for the system. It adopts a switching power supply or a linear regulated power supply and has the advantages of small size, high efficiency and low ripple.

[0059] After relay module 5 connects to current conversion module 4, its normally open contact KA closes, forming a circuit. Relay module 5 uses a DC relay, which has the advantages of sensitive operation and high reliability.

[0060] The digital input module 6 receives signals from the relay module 5 and converts them into digital signals to trigger the alarm program. The digital input module using a PLC or industrial control computer has the advantages of strong anti-interference ability and high reliability.

[0061] The proximity switch 41 is connected to the detection probe of the main detection mechanism to detect the liquid level. The alarm control circuit consists of the alarm terminal 62 and the output port 622 of the digital input module 6. When the digital input module 6 receives a signal from the relay module 5, the alarm terminal 62 is activated and an alarm is issued through the output port 622.

[0062] The reset device consists of a reset terminal 8 and a reset port 623. When the alarm is triggered, pressing the reset terminal 8 transmits a stop reset signal to the alarm terminal 62 through the reset port 623, which can clear the alarm state.

[0063] When water accumulates at the bottom of the lower arm housing of the thickness gauge's C-frame, the water flows into the interior of the protective cylinder 11 through the seepage holes 22 on its outer wall. Because the inner wall of the protective cylinder is inverted conical, the accumulated water concentrates at the bottom and flows into the extension port 21, which guides the water to the detection probe of the main detection mechanism. The detection probe triggers the proximity switch 41. The proximity switch 41 transmits a signal to the relay module 5, causing its normally open contact KA to close. The safe DC power output from the current conversion module 4 connects to the digital input module 6 through the normally open contact KA of the relay module 5, triggering the alarm program. The alarm terminal 62 of the digital input module 6 is activated and issues an alarm through the output port 622, reminding the operator to handle the situation promptly. After the alarm is triggered, pressing the reset terminal 8 transmits a stop reset signal to the alarm terminal 62 through the reset port 623, clearing the alarm state.

[0064] It should be noted that the above embodiments are only used to illustrate the technical solution of this utility model and are not intended to limit it. Although this utility model has been described in detail with reference to preferred embodiments, those skilled in the art should understand that modifications or equivalent substitutions can be made to the technical solution of this utility model without departing from the spirit and scope of the technical solution of this utility model, and all such modifications or substitutions should be covered within the scope of the claims of this utility model.

Claims

1. An auxiliary testing mechanism, characterized in that: include, The support assembly (1) includes a protective cylinder (11), wherein the outer wall of the protective cylinder (11) is inclined and the inner wall is arranged in an inverted cone shape; The detection component (2) includes an extension port (21) and a seepage hole (22) that penetrates the outer wall of the protective cylinder (11).

2. The auxiliary detection mechanism according to claim 1, characterized in that: The extension port (21) is fixedly installed on the top of the protective cylinder (11), and a sealing element (211) is installed on the surface of the extension port (21).

3. The auxiliary testing mechanism according to claim 1 or 2, characterized in that: The seepage hole (22) surrounds the protective cylinder (11), and the seepage hole (22) is located slightly below the outer wall of the protective cylinder (11). A winding surface (111) is fixedly provided at the bottom edge of the protective cylinder (11).

4. A flood alarm system, characterized in that: Including the auxiliary testing mechanism as described in claim 3, and, Current conversion module (4), relay module (5), digital input module (6); The current conversion module (4) receives the main voltage and converts it to safe DC power; After the relay module (5) connects to the current conversion module (4), it closes the KA contact; A safe DC current is connected to the digital input module (6) through the KA contact to trigger an alarm.

5. The flood alarm system according to claim 4, characterized in that: The main voltage input terminal (7) is connected to the current conversion module (4); The positive terminal of the current conversion module (4) is connected to the proximity switch (41), and the proximity switch (41) is connected to the positive terminal of the relay module (5).

6. The flood alarm system according to claim 5, characterized in that: The positive and negative terminals of the digital input module (6) are respectively connected to the alarm control circuit; The digital input module (6) connects to the KA contact at point DI, and the other end of the KA contact is connected to the current conversion module (4).

7. The flood alarm system according to claim 6, characterized in that: The digital input module (6) includes a signal terminal (61) and an alarm terminal (62); The signal terminal (61) is electrically connected to point DI in the digital input module (6); The alarm terminal (62) is equipped with an input port (621), which is electrically connected to the signal terminal (61).

8. The flood alarm system according to claim 7, characterized in that: The signal terminal (61) transmits a signal, and the alarm terminal (62) is activated through the input port (621); The alarm terminal (62) is equipped with an output port (622) to send out an alarm. The alarm terminal (62) is connected to the reset port (623).

9. The flood alarm system according to claim 8, characterized in that: The reset port (623) is connected to the reset terminal (8) on one side; After the reset terminal (8) is started, it transmits a shutdown reset signal to the alarm terminal (62) through the reset port (623).

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