A liquid leakage detection device

Abstract

The present invention relates to a liquid leakage detection device for detecting a liquid to be measured with low conductivity or insulation. The detection device includes a soluble salt layer and a detection circuit; the soluble salt layer is composed of salts soluble in the liquid to be measured; the detection circuit includes a detection conductor, a power supply module, and an electrical signal detection device. The detection conductor is composed of two conductors placed in parallel and not connected under normal conditions, and the detection conductor is embedded in the soluble salt layer; the power supply module and the electrical signal detection device are connected in series between the two conductors to measure the current between the detection conductors. The present invention can accurately detect the liquid leakage of liquids with low conductivity or insulation.

Description

Technical Field

[0001] The present invention relates to a detection device, and more particularly to a liquid leakage detection device. Background Art

[0002] In the electronics industry, liquid media are often used to cool electronic devices. To prevent liquid leakage from causing harm to electronic devices, there is a situation in the industry where low-conductivity or non-conductive liquids are used to replace ordinary conductive liquids for cooling. This situation also brings new problems, that is, traditional liquid leakage detection devices using electrical signals cannot detect the liquid leakage situation of these liquids, posing new potential hazards to the long-term safe operation of the equipment. For example, the liquid leakage detection method and device (application number 201810364433.3), whose detection method is to use the liquid leakage to connect the circuit of the device and detect the on-off situation of the circuit to detect the liquid leakage situation. However, this detection device cannot accurately detect the liquid leakage situation of low-conductivity or insulating liquids. Summary of the Invention

[0003] In view of the above deficiencies in the prior art, the present invention provides a liquid leakage detection device that can accurately detect the liquid leakage situation of low-conductivity or insulating liquids.

[0004] To achieve the above object, the present invention provides the following technical solutions:

[0005] A liquid leakage detection device for detecting a low-conductivity or insulating liquid to be measured, characterized in that the detection device includes a soluble salt layer and a detection circuit; the soluble salt layer is composed of salts soluble in the liquid to be measured; the detection circuit includes a detection conductor, a power supply module, and an electrical signal detection device. The detection conductor is composed of two conductors placed in parallel and not connected under normal conditions, and the detection conductor is embedded in the soluble salt layer; the power supply module and the electrical signal detection device are connected in series between the two conductors to measure the current between the detection conductors.

[0006] Further, the detection device further includes a water-absorbing isolation layer that wraps around the outside of the soluble salt layer.

[0007] Further, the water-absorbing isolation layer is made of a water-absorbing material.

[0008] Further, the detection device further includes a waterproof isolation layer disposed between the water-absorbing isolation layer and the soluble salt layer, and the waterproof isolation layer is provided with through holes.

[0009] Further, the waterproof isolation layer has a certain thickness and is made of a water-impermeable material.

[0010] Further, a plurality of the through holes are uniformly distributed on the waterproof isolation layer at intervals.

[0011] Further, the diameter of the through hole is smaller than the diameter of the salt particles in the soluble salt layer.

[0012] Further, the detection circuit further includes a connection circuit and a signal output module; one side joints of the two conductors of the detection conductor are respectively connected to the connection circuit; the power supply module and the signal output module are connected in series with the detection conductor through the connection circuit.

[0013] Further, the signal output module is an LED lamp, a display screen or a speaker.

[0014] Further, the detection conductor is two conductors of any shape that do not contact each other.

[0015] Advantages of the present invention:

[0016] The present invention dissolves soluble salts by the leakage of a low-conductivity or insulating liquid to increase the conductivity, so as to accurately detect the leakage of the low-conductivity or insulating liquid. In the present invention, the water-absorbing isolation layer and the waterproof isolation layer can not only wrap the soluble salt layer, but also prevent the soluble salt layer from connecting the detection circuit due to absorbing water vapor in the air, thus causing false alarms. Description of the drawings

[0017] Figure 1 is a schematic structural diagram of the liquid leakage detection device of the present invention;

[0018] Figure 2 is a sectional view of the liquid leakage detection device of the present invention.

[0019] Wherein: 1. Water-absorbing isolation layer, 2. Waterproof isolation layer, 3. Through hole, 4. Soluble salt layer, 5. Detection conductor, 6. Connection circuit, 7. Power supply module, 8. Signal output module. Specific embodiments

[0020] The following combines the specification drawings and embodiments to further describe in detail the specific embodiments of the present invention. The following embodiments are only used to illustrate the present invention, but not to limit the scope of the present invention.

[0021] The terms of orientation or positional relationship such as up, down, left, right, inside, outside, front end, rear end, head, tail, etc. in this application document are based on the orientation or positional relationship shown in the drawings. If the drawings are different, the corresponding positional relationship may also change accordingly. Therefore, it cannot be understood as a limitation of the protection scope.

[0022] In the present invention, terms such as "installation", "connection", "joining", "linkage", "fixation", etc. shall be understood in a broad sense. For example, it may be a fixed connection, a detachable connection, an integral connection, a mechanical connection, an electrical connection or a connection enabling mutual communication, a direct connection, or an indirect connection through an intermediate medium. It may be the connection inside two components or the interaction relationship between two components. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0023] This embodiment describes a liquid leakage detection device, which realizes the detection of the liquid leakage of low-conductivity or insulating liquid by means of the liquid leakage of the low-conductivity or insulating liquid dissolving soluble salts.

[0024] As Figure 1 and Figure 2 shown, the detection device includes a water-absorbing isolation layer 1, a waterproof isolation layer 2, a soluble salt layer 4, a detection conductor 5, a connection circuit 6, a power supply module 7, and a signal output module 8.

[0025] The water-absorbing isolation layer 1 and the waterproof isolation layer 2 are respectively in an annular cylindrical structure, and the water-absorbing isolation layer 1 is wrapped outside the soluble salt layer 4 through the waterproof isolation layer 2.

[0026] The water-absorbing isolation layer 1 is made of a water-absorbing material and is used to absorb water vapor in the air to prevent water vapor from entering the interior of the detection device, while not affecting the liquid leakage from entering the interior of the detection device.

[0027] The waterproof isolation layer 2 is placed between the water-absorbing isolation layer 1 and the soluble salt layer 4. The waterproof isolation layer 2 has a certain thickness and is made of a water-impermeable material. When the water-absorbing isolation layer 1 becomes wet due to absorbing water vapor, the waterproof isolation layer 2 can also prevent the water-absorbing isolation layer 1 from directly contacting the soluble salt layer 4. A plurality of evenly spaced through holes 3 are arranged on the waterproof isolation layer 2, and the diameter of the through holes 3 is smaller than the diameter of the salt particles in the soluble salt layer 4, so that the waterproof isolation layer 2 can stabilize the soluble salt layer 4 while preventing the salts from scattering. While the through holes 3 prevent water vapor in the air from entering the soluble salt layer 4, the liquid leakage passing through the water-absorbing isolation layer 1 can enter the soluble salt layer 4.

[0028] The soluble salt layer 4 is placed inside the waterproof isolation layer 2, and the soluble salt layer 4 is composed of salts that are soluble in the low-conductivity or insulating liquid to be detected. When the liquid leakage passes through the water-absorbing isolation layer 1 and the waterproof isolation layer 2 and enters the soluble salt layer 4, the salts in the soluble salt layer 4 dissolve into the liquid leakage, increasing the conductivity of the liquid leakage.

[0029] The detection conductor 5, connection circuit 6, power supply module 7, and signal output module 8 form a detection circuit. The detection conductor 5 consists of two conductors that are placed parallel to each other and not connected under normal conditions. The detection conductor 5 is placed within the soluble salt layer 4. When leakage enters the soluble salt layer 4 and dissolves a certain amount of salt, the leakage connects the two conductors of the detection conductor 5. One side of the joints of the two conductors of the detection conductor 5 is respectively connected to the connection circuit 6. The power supply module 7 and the signal output module 8 are connected in series to the connection circuit 6 through connecting wires and form a series detection circuit with the detection conductor 5. When the two conductors of the detection conductor 5 are connected, the power supply module 7 supplies power to the entire detection circuit, and after the signal output module 8 is powered on, it outputs a signal externally, indicating the presence of leakage.

[0030] In this embodiment, the detection conductor 5 is directly placed in the soluble salt of the soluble salt layer 4, which can quickly connect the detection circuit when leakage occurs, issue an alarm, and avoid the harm of leakage to electronic devices.

[0031] In this embodiment, the detection conductor 5 can also be two conductors of any shape that do not contact each other. The signal output module 8 can select alarm devices such as LED lights, display screens, and speakers.

[0032] When using the detection device of this embodiment for leakage detection, the part where the water absorption isolation layer 1 is located is placed at the position where leakage flows or drips.

[0033] When leakage passes through the water absorption isolation layer 1 and enters the waterproof isolation layer 2, and then enters the soluble salt layer 4 through the through holes 3, the leakage dissolves part of the soluble salt in the soluble salt layer 4, the conductivity increases, and the two unconnected conductors of the detection conductor 5 in the soluble salt layer 4 are connected. The detection conductor 5, the power supply module 7, and the signal output module 8 are connected through the connection circuit 6. The power supply module 7 supplies power to the signal output module 8, and after the signal output module 8 is powered on, it emits a detection signal for leakage alarm.

[0034] When the two conductors of the detection conductor 5 do not contact each other and the detection circuit remains in an open state, the signal output module 8 does not act, indicating that no leakage has occurred.

[0035] At the same time, when the air is humid, the water absorption isolation layer 1 absorbs the water vapor in the air, preventing the water vapor from entering the soluble salt layer 4 through the through holes 3. And because the water absorption isolation layer 1 that is humid due to absorbing water vapor avoids direct contact with the soluble salt layer 4 through the waterproof isolation layer 2, further preventing the water vapor from entering the soluble salt layer 4, which can reduce the false alarm situation of the detection device due to moisture.

[0036] Although the principles of the present invention have been described in detail above in connection with the preferred embodiments of the present invention, those skilled in the art should understand that the above embodiments are merely illustrative implementations of the present invention and do not limit the scope of the present invention. The details in the embodiments do not constitute a limitation on the scope of the present invention. Without departing from the spirit and scope of the present invention, any obvious changes such as equivalent transformations and simple substitutions based on the technical solutions of the present invention fall within the scope of protection of the present invention.

Claims

1. A liquid leakage detection device for detecting a liquid to be measured with low conductivity or insulation, characterized in that, The detection device includes a water-absorbing isolation layer (1), a waterproof isolation layer (2), a soluble salt layer (4) and a detection circuit; the water-absorbing isolation layer (1) is made of a water-absorbing material and wraps the outside of the soluble salt layer (4); the waterproof isolation layer (2) is placed between the water-absorbing isolation layer (1) and the soluble salt layer (4), the waterproof isolation layer (2) has a certain thickness and is made of a water-impermeable material, and the waterproof isolation layer (2) is provided with through holes (3); the soluble salt layer (4) is composed of salts soluble in the liquid to be measured, and the diameter of the through holes (3) is smaller than the diameter of the salt particles in the soluble salt layer (4); the detection circuit includes a detection conductor (5), a power supply module (7) and an electrical signal detection device, the detection conductor (5) is composed of two conductors placed in parallel and not connected under normal conditions, and the detection conductor (5) is embedded in the soluble salt layer (4); the power supply module (7) and the electrical signal detection device are connected in series between the two conductors to measure the current between the detection conductors (5).

2. The liquid leakage detection device according to claim 1, characterized in that, A plurality of the through holes (3) are uniformly arranged at intervals on the waterproof isolation layer (2).

3. The liquid leakage detection device according to claim 1, characterized in that, The detection circuit further includes a connection circuit (6) and a signal output module (8); one-side joints of the two conductors of the detection conductor (5) are respectively connected to the connection circuit (6); the power supply module (7) and the signal output module (8) are connected in series with the detection conductor (5) through the connection circuit (6).

4. The liquid leakage detection device according to claim 3, characterized in that, The signal output module (8) is an LED lamp, a display screen or a speaker.

5. The liquid leakage detection device according to claim 1, characterized in that, The detection conductor (5) is two conductors of any shape that do not contact each other.

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