A liquid leakage detection device

Abstract

The application belongs to the field of leakage detection equipment, and provides a liquid leakage detection device, which comprises a flow guide bin with an opening communicating with the internal space of the bin chamber, the opening side wall of which is attached to the peripheral wall of the position to be detected; a gas inlet is arranged on the bin wall of the flow guide bin, and a one-way valve is installed at the gas inlet, and the conduction direction is from the outside to the internal space of the bin chamber; a flow gathering bin, the internal space of which communicates with the internal space of the flow guide bin; a sensor is installed in the internal space of the flow gathering bin, which is used for detecting whether there is liquid in the flow gathering bin; an exhaust valve is installed on the bin wall of the flow gathering bin; when the exhaust valve is closed, the internal space of the flow guide bin and the internal space of the flow gathering bin form a closed space, thereby, the application can quickly capture the trace liquid leakage of the position to be detected; when liquid leakage occurs in the position to be detected, the leaked liquid will flow into the flow gathering bin; the sensor in the flow gathering bin detects the existence of the liquid, and then triggers a leakage alarm, thereby effectively reducing the loss of raw materials.

Description

Technical Field

[0001] This invention relates to the field of leak detection equipment, and more particularly to a liquid leak detection device. Background Technology

[0002] Liquid filtration is a crucial step in the entire ink production process. Precise filtration effectively removes impurities, particulate matter, and insoluble precipitates that may be present in the raw materials, as well as those generated during production. However, after prolonged use, as the filter element accumulates a significant amount of impurities, the internal pressure increases, potentially compressing the sealing connections and causing leaks. This leads to further loss of raw materials.

[0003] In conclusion, the existing technology obviously has inconveniences and defects in practical use, so it is necessary to improve it. Summary of the Invention

[0004] To address the aforementioned shortcomings, the present invention aims to provide a liquid leak detection device that can quickly detect minute liquid leaks at the detection location. When liquid leakage occurs at the detection location, the leaked liquid flows into a collection chamber. The sensor in the collection chamber detects the presence of liquid and triggers a leak alarm, thereby effectively reducing raw material loss.

[0005] To achieve the above objectives, the present invention provides a liquid leakage detection device, comprising: a flow guiding chamber having an opening communicating with the internal space of the chamber, the sidewall of the opening being fitted with the peripheral wall of the location to be detected; an air inlet provided on the wall of the flow guiding chamber, a one-way valve installed at the air inlet, the flow direction being from the outside to the inside of the chamber; a flow concentrator having its internal space communicating with the interior of the flow guiding chamber; a sensor installed inside the flow concentrator for detecting the presence of liquid inside the flow concentrator; a discharge valve installed on the wall of the flow concentrator; when the discharge valve is closed, the internal space of the flow guiding chamber and the internal space of the flow concentrator form a closed loop.

[0006] According to the liquid leakage detection device of the present invention, the flow guiding chamber is an annular structure, and the opening is located on the inner side of the annular structure.

[0007] According to the liquid leakage detection device of the present invention, the flow guide chamber is composed of multiple sets of components with predetermined curvature.

[0008] According to the liquid leakage detection device of the present invention, the flow guiding chamber is composed of two semi-ring structure assemblies, the connecting ends of the two assemblies are hinged to each other, and the opposite movable ends are locked together by a locking structure.

[0009] According to the liquid leak detection device of the present invention, the interior of the flow guiding chamber is provided with a sealing layer, which includes an elastic sealing part with a surrounding structure and extending in the same direction as the flow guiding chamber, and a flexible connecting part connecting the elastic sealing part to the flow guiding chamber; the elastic sealing part has a covering opening; the elastic sealing part has an elastic tendency to close the covering opening when there is no external force; the side wall of the flow guiding chamber is equipped with a squeezing member for applying pressure to the elastic sealing part toward the location to be detected in the pipeline.

[0010] According to the liquid leakage detection device of the present invention, a rotary switching valve is rotatably installed at the air inlet, and a one-way flow-blocking plate is rotatably installed inside the valve; the rotary switching valve has a first guide port and a second guide port forming a three-way structure with the air inlet end, the first guide port being a fan-shaped channel; the flow guide chamber has a first flow channel and a second flow channel; the first flow channel is connected to the outer support area of ​​the drive elastic sealing part, and the second flow channel is connected to the working area; when the elastic sealing part is working, the first guide port is connected to the first flow channel, while the second guide port is in a blocked state.

[0011] According to the liquid leakage detection device of the present invention, the extrusion member adopts a bolt structure and is provided in multiple forms; the end of the extrusion member abuts against the elastic sealing part; the extrusion member is screwed to the side wall of the flow guide chamber.

[0012] This invention provides a liquid leak detection device, comprising: a flow guiding chamber having an opening communicating with the internal space of the chamber, the sidewall of the opening being fitted with the peripheral wall of the location to be detected; an air inlet provided on the wall of the flow guiding chamber, a one-way valve installed at the air inlet, the flow direction being from the outside to the inside of the chamber; a flow concentrator having its interior communicating with the interior of the flow guiding chamber; a sensor installed inside the flow concentrator for detecting the presence of liquid inside the flow concentrator; a discharge valve installed on the wall of the flow concentrator; when the discharge valve is closed, the internal space of the flow guiding chamber and the internal space of the flow concentrator form a closed loop.

[0013] This invention can quickly detect trace liquid leaks at the detection location. When liquid leakage occurs at the detection location, the leaked liquid will flow into the aggregation chamber. The sensor in the aggregation chamber detects the presence of liquid and triggers a leak alarm, thereby effectively reducing raw material loss. Attached Figure Description

[0014] Figure 1 This is a schematic diagram of the structure of the present invention; Figure 2 This is an installation diagram of the present invention; Figure 3 This is a side sectional view of the present invention; Figure 4 yes Figure 3 Enlarged view of section B; Figure 5 yes Figure 3 Enlarged view of section A; Figure 6 This is a schematic diagram of the structure of the first and second conductive ports; In the figure, 1-flow guide chamber, 2-opening, 3-air inlet, 4-flow convergence chamber, 5-discharge valve, 6-assembly, 10-sealing layer, 11-extrusion, 12-covering port, 13-electrode plate, 31-rotation switching valve, 32-first guide port, 33-second guide port, 34-first flow channel, 35-second flow channel, 36-one-way flow barrier, S1-outer support area, S2-working area, 101-elastic sealing part, 102-flexible connection part, 103-flexible pipe. Detailed Implementation

[0015] To make the objectives, technical solutions, and advantages of this invention clearer, the invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely for explaining the invention and are not intended to limit the invention.

[0016] It should be noted that if the embodiments of the present invention involve directional indicators (such as up, down, left, right, front, back, etc.), the directional indicators are only used to explain the relative positional relationship and movement of the components in a certain specific posture (as shown in the figure). If the specific posture changes, the directional indicators will also change accordingly.

[0017] Meanwhile, the meaning of "and / or" or "and / or" appearing throughout the text is that it includes three options. Taking "A and / or B" as an example, it includes option A, option B, or an option that satisfies both A and B.

[0018] Furthermore, if the embodiments of this invention involve descriptions such as "first" or "second," these descriptions are for descriptive purposes only and should not be construed as indicating or implying their relative importance or implicitly specifying the number of technical features indicated. Therefore, features defined with "first" or "second" may explicitly or implicitly include at least one of those features. Additionally, the technical solutions of the various embodiments can be combined with each other, but this must be based on the ability of those skilled in the art to implement them. If the combination of technical solutions is contradictory or impossible to implement, it should be considered that such a combination of technical solutions does not exist and is not within the scope of protection claimed by this invention.

[0019] See Figures 1-3 The present invention provides a liquid leak detection device, which includes: The flow guide chamber 1 is used to collect leaked liquid at the location to be tested. The flow guide chamber 1 has an opening 2 that connects to the internal space of the chamber. The opening 2 is fastened to the location to be tested on the pipe. The side wall of the opening 2 is fitted to the peripheral wall of the location to be tested. The side wall of the opening 2 can be provided with a sealing structure to increase the sealing performance after the components are fitted. The sealing structure can be an additional sealing strip or a labyrinth seal or other sealing structure provided at the side wall of the opening 2. The side wall of the opening 2 of the flow guide chamber 1 is fitted to the peripheral wall of the location to be tested and is sealed, which can effectively prevent the leaked liquid from overflowing.

[0020] An air inlet 3 is provided on the wall of the flow guide chamber 1. A one-way valve is installed at the air inlet 3, and the flow direction is from the outside to the inside of the chamber. That is, the airflow entering the flow guide chamber 1 is blocked by the one-way valve and cannot flow out from the air inlet 3.

[0021] A liquid collection chamber 4, whose interior is connected to the interior of the flow guide chamber 1, is used to collect the liquid within the flow guide chamber 1. A sensor is installed inside the liquid collection chamber 4 to detect the presence of liquid within it. A discharge valve 5 is installed on the wall of the liquid collection chamber 4. When the discharge valve 5 is closed, the interior spaces of the flow guide chamber 1 and the liquid collection chamber 4 form a closed structure. The device is installed at the location of the component to be tested (such as a pipe or filter). A gas supply device (such as an air pump) injects a fixed amount of dry gas into the internal space of the device through the air inlet 3. The dry gas avoids the influence of humidity, which can cause detection errors in the sensor (high humidity in the air will condense into liquid and flow into the liquid collection chamber 4, causing errors). Simultaneously, the fixed amount of gas provides a stable pressure environment for subsequent testing. When gas needs to be discharged, the discharge valve 5 is opened.

[0022] When a liquid leak occurs at the detection location, the diversion chamber 1 collects the liquid and directs it into the convergence chamber 4. A sensor within the convergence chamber 4 detects the presence of the liquid and sends a signal to the central control unit, indicating a leak. The sensor used in this application can be a capacitive sensor or an ultrasonic sensor. For example, regarding a capacitive sensor, see [link to relevant documentation]. Figure 4 The two electrode plates 13 of the capacitive sensor are respectively positioned in appropriate locations within the flow-collecting chamber 4. When liquid leaks into the flow-collecting chamber 4, the difference in dielectric constant between the liquid and air alters the electric field distribution between the electrode plates, causing a change in capacitance. The sensor detects this change in capacitance to determine the presence of liquid within the flow-collecting chamber 4. Once the sensor detects the presence of liquid and sends a signal, the central control system can take timely measures, such as issuing an alarm to alert personnel or automatically controlling relevant equipment to stop operation, to prevent further liquid leakage and greater losses.

[0023] In some embodiments of the present invention, the flow guiding chamber 1 can be an arc-shaped or long straight structure. In this embodiment, the flow guiding chamber 1 is an annular structure, and the opening 2 is located on the inner side of the annular structure. This structure can be adapted to pipes or circumferential filters, allowing the flow guiding chamber 1 to more comprehensively surround the location to be detected, further enhancing the sealing and liquid collection effect. When liquid leakage occurs at the location to be detected, the annular flow guiding chamber 1 can collect the leaked liquid from all directions, preventing liquid from overflowing from the sides and ensuring that all leaked liquid can be effectively guided into the flow collection chamber 4. At the same time, this structure is also easy to install and fix, improving the practicality of the device. In practical applications, the size and specifications of the annular flow guiding chamber 1 can be flexibly adjusted according to the specific detection scenario and requirements to achieve the best detection effect.

[0024] See Figure 5 In some embodiments of the present invention, the interior of the flow guide chamber 1 is provided with a sealing layer 10, which includes: an elastic sealing part 101, the cross-section of which is an enclosing structure and extends in the same direction as the flow guide chamber 1; a flexible connecting part 102, which connects the elastic sealing part to the flow guide chamber 1 and can deform according to the movement of the elastic sealing part, specifically made of rubber or other flexible sealing materials; the flexible connecting part 102 divides the internal space of the flow guide chamber 1 into an external support area S1 and a working area S2; the elastic sealing part has a covering opening 12, which covers the position to be detected; the elastic sealing part has an elastic tendency to close the covering opening 12 when there is no external force. Specifically, in this embodiment, the elastic sealing part is an arc-shaped plate 14, which is made of metal or plastic material that combines elasticity and hardness. The arc-shaped plate can stably abut against the position to be detected, and at the same time, it uses its own elasticity to press against the periphery of the position to be detected, thus creating a double sealing effect for lateral leakage, ensuring that the leaked liquid can be completely collected into the flow guide chamber. The interior of the sealed layer 10 is connected to the air inlet 3 and the exhaust valve 5 through flexible pipes 103 (corrugated pipes are acceptable).

[0025] Meanwhile, after the device is used up, air is introduced into the device through the air inlet 3. The airflow, combined with the smooth inner working wall of the arc plate 14, helps to expel impurities from the working area S2.

[0026] The airflow entering through the air inlet 3 increases the air pressure inside the guide chamber 1 (exhaust valve 5 is closed), thereby expanding the covering opening 12 (airflow into...). Figure 5The outer support area S1); the side wall of the flow guide chamber 1 is equipped with an extrusion member 11, which is used to apply pressure to the elastic sealing part 101 toward the position to be tested in the pipeline. As the airflow entering the outer support area S1 through the air inlet 3 increases, the air pressure drives the covering port 12 to the maximum support. The extrusion member can then drive the elastic sealing part to move radially along the flow guide chamber, adjusting the position of the elastic sealing part. Subsequently, by releasing the air pressure, the pressing work is completed under the elastic force of the elastic sealing part, achieving a double sealing effect. Specifically, the extrusion member 11 adopts a bolt structure and multiple extrusion members are provided; the end of the extrusion member 11 abuts against the elastic sealing part; the extrusion member 11 is screwed to the side wall of the flow guide chamber 1.

[0027] In some embodiments of the present invention, a rotary switching valve 31 is rotatably installed at the air inlet 3, and a one-way flow-blocking plate 36 is rotatably installed inside the valve. The one-way movement of the one-way flow-blocking plate 36 is equivalent to the one-way flow-blocking effect of the one-way valve described above. The rotary switching valve 31 has a first guide port 32 and a second guide port 33 that form a three-way structure with the air inlet end. The first guide port 32 is a fan-shaped channel. Figure 6 (As shown); the flow guide chamber 1 has a first flow channel 34 and a second flow channel 35; the first flow channel 34 is connected to the outer support area S1 of the drive elastic sealing part outer support, and the second flow channel 35 is connected to the working area S2. When the elastic sealing part outer support is working, the first guide port 32 is connected to the first flow channel 34, while the second guide port 33 is not connected to the second flow channel 35 and is in a blocked state.

[0028] After the external support is completed, fine-tuning is performed. Slightly rotate the switching valve 31 to connect the second guide port 33 with the second flow channel 35, so that the external support area S1 and the working area S2 are connected. This simultaneously realizes the pressure release of the external support area S1 and the airflow filling of the working area S2. After rotating 1~2 times, rotate the switching valve 31 back. Through the above operation process, there is no need to operate separately for the pressure adjustment needs of the two areas, that is, there is no need to repeatedly connect the air supply equipment, reducing the installation operation steps.

[0029] Based on the above embodiments, the flow guide chamber 1 is composed of multiple sets of assemblies 6 with predetermined curvatures. This design makes the flow guide chamber 1 more flexible and convenient to install. The design of multiple sets of assemblies 6 facilitates transportation and storage, and can be assembled on-site when needed. At the same time, this detachable assembly method also facilitates the maintenance and replacement of the flow guide chamber 1. If a certain assembly 6 is damaged, only the corresponding assembly 6 needs to be replaced, without replacing the entire flow guide chamber 1, thus reducing maintenance costs. Specifically, in this embodiment, the flow guide chamber 1 is composed of two semi-ring structure assemblies 6. The connecting ends of the two assemblies 6 are hinged to each other, and the opposing movable ends can be locked together by a locking structure. The locking can be achieved by a snap-fit ​​structure or by a threaded positioning component (such as a locking bolt).

[0030] During installation, simply align the two semi-ring assemblies 6 around the location to be tested, and then securely lock the movable ends using the locking mechanism to complete the installation of the flow guide chamber 1. For disassembly, simply loosen the locking mechanism, separate the two semi-ring assemblies 6, and the flow guide chamber 1 can be easily removed. This design improves the efficiency of installation and disassembly.

[0031] Of course, the present invention may have other various embodiments. Without departing from the spirit and essence of the present invention, those skilled in the art can make various corresponding changes and modifications according to the present invention, but these corresponding changes and modifications should all fall within the protection scope of the appended claims.

Claims

1. A liquid leak detection device, characterized in that, include: A flow guide chamber has an opening that connects to the internal space of the chamber, and the sidewall of the opening is fitted to the peripheral wall of the location to be detected. An air inlet is provided on the wall of the flow guide chamber, and a one-way valve is installed at the air inlet, with the flow direction being from the outside to the inside of the chamber; The flow-gathering chamber is connected to the interior of the flow-guiding chamber; a sensor is installed inside the flow-gathering chamber to detect the presence of liquid inside; a discharge valve is installed on the wall of the flow-gathering chamber. When the discharge valve is closed, the internal space of the flow guiding chamber and the internal space of the flow gathering chamber are enclosed.

2. The liquid leak detection device according to claim 1, characterized in that, The flow guide chamber has a ring structure, and the opening is located on the inner side of the ring structure.

3. The liquid leak detection device according to claim 2, characterized in that, The flow guide chamber is composed of multiple sets of components with a predetermined curvature.

4. The liquid leak detection device according to claim 3, characterized in that, The flow guide chamber is composed of two semi-ring structures. The connecting ends of the two components are hinged to each other, while the opposite movable ends are locked together by a locking structure.

5. The liquid leak detection device according to claim 1, characterized in that, The interior of the flow guide chamber is provided with a sealing layer, which includes an elastic sealing part with a cross-section that surrounds the flow guide chamber and extends in the same direction as the flow guide chamber, and a flexible connecting part that connects the elastic sealing part to the flow guide chamber. The elastic sealing part has a covering opening; The elastic sealing part has an elastic tendency to close the covering opening when there is no external force. The sidewall of the flow guide chamber is equipped with an extrusion member, which is used to apply pressure to the elastic seal towards the location to be tested in the pipeline.

6. The liquid leak detection device according to claim 5, characterized in that, A rotary switching valve is rotatably installed at the air inlet, and a one-way flow-blocking plate is rotatably installed inside the valve; the rotary switching valve has a first guide port and a second guide port that form a three-way structure with the air inlet end, and the first guide port is a fan-shaped channel; the flow guide chamber has a first flow channel and a second flow channel. The first flow channel is connected to the outer support area of ​​the drive elastic sealing part, and the second flow channel is connected to the working area; When the elastic sealing part is in operation, the first guide port is connected to the first flow channel, while the second guide port is blocked. After the external support is completed, fine-tuning begins. Rotate the switching valve to connect the second guide port with the second flow channel, thus connecting the external support area with the working area.

7. The liquid leak detection device according to claim 5, characterized in that, The extrusion component adopts a bolt structure and is provided in multiple forms; The end of the extrusion piece abuts against the elastic sealing part; the extrusion piece is screwed to the side wall of the flow guide chamber.

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