CN215524929U - Water leakage detection device and underwater operation equipment - Google Patents
Water leakage detection device and underwater operation equipment Download PDFInfo
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- CN215524929U CN215524929U CN202121237589.9U CN202121237589U CN215524929U CN 215524929 U CN215524929 U CN 215524929U CN 202121237589 U CN202121237589 U CN 202121237589U CN 215524929 U CN215524929 U CN 215524929U
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Abstract
The utility model provides a detection device and underwater operation equipment leak, and the detection device that leaks includes: a detection unit for detecting whether water leakage occurs; the judging unit is connected with the detecting unit and used for sending a first water leakage signal when the detecting unit detects that water leakage occurs; and the isolation unit is connected with the judgment unit and used for isolating the judgment unit from the main control unit and converting the first water leakage signal into a second water leakage signal to be sent to the main control unit. According to the water leakage detection device and the water leakage detection method, the detection unit and the judgment unit are isolated from other circuits, so that the interference of other circuits to the detection unit and the judgment unit is avoided, the anti-interference capability is enhanced, and the accuracy and the sensitivity of the detection unit and the judgment unit to water leakage detection are improved.
Description
Technical Field
The utility model relates to the technical field of underwater operation, in particular to a water leakage detection technology.
Background
The underwater operation equipment is often required to work underwater for a long time, so that the condition that water leaks into the equipment is easy to happen. Once water enters the equipment, the normal operation of the equipment is affected, particularly, seawater also has certain corrosiveness and damages the equipment, so that the water leakage detection needs to be carried out on the underwater operation equipment, and the water leakage condition needs to be found and treated in time, so that the service life of the underwater operation equipment is prolonged. According to the existing water leakage detection technology, a detection circuit is generally directly electrically connected with a control circuit, the detection circuit normally generates an electric signal different from that in a normal condition after detecting water leakage and sends the electric signal to the control circuit, and other circuits can cause certain interference on the detection circuit, so that false detection or missing detection is caused, and the accuracy of water leakage detection is reduced.
SUMMERY OF THE UTILITY MODEL
In view of the above, the present invention provides a water leakage detection device and an underwater operation device, so as to solve the problem of inaccurate water leakage detection in the prior art.
In view of the above object, according to a first aspect of the present invention, there is provided a water leakage detecting device including:
a detection unit for detecting whether water leakage occurs;
the judging unit is connected with the detecting unit and used for sending a first water leakage signal when the detecting unit detects that water leakage occurs;
and the isolation unit is connected with the judgment unit and used for isolating the judgment unit from the main control unit and converting the first water leakage signal into a second water leakage signal to be sent to the main control unit.
Optionally, the detection unit includes:
a water absorption member for absorbing water when water leakage occurs;
the water absorption component is connected between the two water leakage detection components;
wherein the water absorption member absorbs water to cause the two water leakage detection members to be continuously short-circuited, thereby detecting the occurrence of water leakage.
Optionally, a first water leakage detecting member of the two water leakage detecting members is connected to the judging unit through a first connector, and a second water leakage detecting member of the two water leakage detecting members is grounded through the first connector.
Optionally, the determining unit includes:
the comparator comprises a first input end, a second input end and an output end, wherein the first input end is connected to a reference voltage, and the second input end is connected to the output end of the detection unit;
when the voltage of the detection signal output by the detection unit is smaller than the reference voltage, the output end of the comparator outputs the first water leakage signal.
Optionally, the apparatus further comprises: an isolated power supply comprising a positive input terminal, a negative input terminal, a positive output terminal and a negative output terminal, wherein,
the positive input end is connected with a power supply, the negative input end is grounded, and the positive input end is connected with the negative input end through a first capacitor;
the positive output end is connected with the first input end through a first resistor and used for providing the reference voltage, the negative output end is grounded, and the positive output end is connected with the negative output end through a second capacitor.
Optionally, a connection point of the first resistor and the first input terminal is further connected to ground via a second resistor, and the positive output terminal is further connected to the second input terminal via a third resistor.
Optionally, the isolation unit includes optical coupler isolation, wherein when the determination unit outputs the first water leakage signal, the optical coupler isolation is turned on, and the optical coupler isolation outputs the second water leakage signal.
Optionally, the absorbent member comprises absorbent cotton.
According to a second aspect of the present invention, there is provided a subsea operation device comprising: a main control unit and the water leakage detection device according to the first aspect; wherein the content of the first and second substances,
when the water leakage detection unit detects water leakage, sending a corresponding second water leakage signal to the main control unit;
and the main control unit executes water leakage alarm operation and/or water leakage protection operation based on the second water leakage information.
Optionally, the apparatus further comprises:
and the alarm device is communicated with the main control unit and is used for receiving the alarm signal sent by the main control unit and carrying out water leakage alarm.
As can be seen from the above, the water leakage detection device and the underwater operation equipment provided by the utility model have the advantages that the detection unit and the judgment unit are isolated from other circuits, so that the interference of other circuits on the detection unit and the judgment unit is avoided, the anti-interference capability is enhanced, and the accuracy and the sensitivity of the detection unit and the judgment unit on water leakage detection are improved.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to the drawings without creative efforts.
Fig. 1 is a schematic and schematic diagram of a water leakage detecting apparatus according to an embodiment of the present invention;
fig. 2 is a schematic block diagram of a subsea operation device according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is described in further detail below with reference to specific embodiments and the accompanying drawings.
It is to be noted that technical terms or scientific terms used in the embodiments of the present invention should have the ordinary meanings as understood by those having ordinary skill in the art to which the present disclosure belongs, unless otherwise defined. The use of "first," "second," and similar terms in this disclosure is not intended to indicate any order, quantity, or importance, but rather is used to distinguish one element from another. The word "comprising" or "comprises", and the like, means that the element or item listed before the word covers the element or item listed after the word and its equivalents, but does not exclude other elements or items. The terms "connected" or "coupled" and the like are not restricted to physical or mechanical connections, but may include electrical connections, whether direct or indirect.
The existing water leakage detection technology generally adopts two closely spaced but disconnected metal wires to detect whether water leakage occurs, and when the two metal wires are conducted by water, the corresponding I/O port outputs low level, thereby determining whether water leakage occurs. However, when water leaks, the electrochemical reaction may deteriorate the conductivity of the metal wire for detecting water leakage, and the water leakage detection may fail. Moreover, the above method may fail to detect when there is only a small amount of water leakage. In addition, the metal wire is generally directly connected with other circuits, and other circuits also cause certain interference to the detection circuit, so that false detection or missing detection is caused, and the accuracy of water leakage detection is reduced.
In view of the above, according to an embodiment of the present invention, a water leakage detecting device is provided. Referring to fig. 1, fig. 1 shows a schematic diagram of a water leakage detecting device according to an embodiment of the present invention. As shown in fig. 1, the water leakage detecting apparatus includes:
a detection unit 110 for detecting whether water leakage occurs;
a determining unit 120, connected to the detecting unit 110, for sending a first water leakage signal when the detecting unit 110 detects that water leakage occurs;
and an isolating unit 130 connected to the determining unit 120, configured to isolate the determining unit 120 from the main control unit, convert the first water leakage signal into a second water leakage signal, and send the second water leakage signal to the main control unit.
The detection unit 110 can detect whether water leakage occurs in an area to be detected, when the detection unit 110 detects that water leakage occurs, the judgment unit 120 sends out a first water leakage signal, the first water leakage signal is converted into a second water leakage signal after passing through the isolation unit and is sent to the main control unit, so that the detection unit 110 and the judgment unit 120 are isolated from other circuits, interference of other circuits on the detection unit 110 and the judgment unit 120 is avoided, the anti-interference capability is enhanced, and the accuracy of water leakage detection of the detection unit 110 and the judgment unit 120 is improved.
According to an embodiment of the present invention, the detecting unit 110 may include:
a water absorption member for absorbing water when water leakage occurs;
the water absorption component is connected between the two water leakage detection components;
wherein the water absorption member absorbs water to cause the two water leakage detection members to be continuously short-circuited, thereby detecting the occurrence of water leakage.
Optionally, a first water leakage detecting member of the two water leakage detecting members is connected to the judging unit through a first connector, and a second water leakage detecting member of the two water leakage detecting members is grounded through the first connector.
In some embodiments, the absorbent member comprises a water absorbent material. Further, the water absorbent material may be a water absorbent cotton.
The water absorption component absorbs water as long as the water leakage condition occurs in the area to be detected, so that the two water leakage detection components are in short circuit, and are in continuous short circuit, and water leakage cannot be detected due to the fact that the water leakage amount is less influenced. In the prior art, not only the leakage of a small amount of water may not be detected, but even if the leakage is detected, if some reason is left midway (for example, the water is inclined to another position by the machine), the detected leakage may disappear. According to the embodiment of the utility model, compared with the prior art, the water leakage can be detected in time, the sensitivity of water leakage detection is increased, the stable first water leakage signal can be generated, the interference of external factors is reduced, and the accuracy of water leakage detection is improved.
In some embodiments, the water leak detection component may include a water leak detection line. In practical application, the water leakage detection line is adopted, the design of the water leakage detection plate is omitted, the water leakage detection line is convenient to cut, and the water leakage detection line is convenient to install and is insulated from the metal bulkhead.
According to an embodiment of the present invention, referring again to fig. 1, the determining unit 120 includes:
a comparator including a first input terminal a connected to a reference voltage, a second input terminal B connected to an output terminal of the detection unit 110, and an output terminal C;
when the voltage of the detection signal output by the detection unit 110 is less than the reference voltage, the output end of the comparator outputs the first water leakage signal.
Optionally, the apparatus further comprises: the isolated power supply 140 includes a positive input terminal D, a negative input terminal E, a positive output terminal F, and a negative output terminal G, wherein,
the positive input end D is connected with a power supply, the negative input end E is grounded, and the positive input end D is connected with the negative input end E through a first capacitor C1;
the positive output terminal F is connected to the first input terminal a via a first resistor R1 for providing the reference voltage, the negative output terminal G is grounded, and the positive output terminal E and the negative output terminal G are connected by a second capacitor C2.
Optionally, the connection point of the first resistor R1 and the first input terminal a is further connected to ground via a second resistor R2, and the positive output terminal F is further connected to the second input terminal B via a third resistor R3.
Optionally, the isolation unit 130 includes an optical coupler isolation, wherein when the determination unit 120 outputs the first water leakage signal, the optical coupler isolation is turned on, and the optical coupler isolation outputs the second water leakage signal.
Specifically, referring to fig. 1, the isolation power supply 140 provides a reference voltage for the determining unit 120, and the voltage of the first input terminal a of the comparator is the reference voltage; when the detection unit 110 does not detect water leakage, the voltage of the second input terminal B of the comparator is higher than the reference voltage of the first input terminal a, and the output terminal C of the comparator outputs a high level; then, the input side of the isolation unit 130 is not turned on, and the output side of the isolation unit 130 outputs a high level to the main control unit. When the detection unit 110 detects a water leak, the voltage of the second input terminal B of the comparator is lower than the reference voltage of the first input terminal a, and the output terminal C of the comparator outputs a low level (i.e., a first water leak signal); then, the input side of the isolation unit 130 is turned on, and the output side of the isolation unit 130 outputs a low level (i.e., a second water leakage signal) to the main control unit. The main control unit may issue a water leakage alarm and/or perform a water leakage protection operation under a preset condition (e.g., at intervals of 100ms and continuously detecting the second water leakage signal 50 times).
According to the embodiment of the utility model, the underwater operation equipment is further provided. Referring to fig. 2, fig. 2 shows a schematic block diagram of a subsea operation device according to an embodiment of the present invention. As shown in fig. 2, the underwater working device includes: a main control unit 210 and a water leakage detection device 220 according to an embodiment of the present invention; wherein the content of the first and second substances,
when the water leakage detection unit detects water leakage, sending a corresponding second water leakage signal to the main control unit;
and the main control unit executes water leakage alarm operation and/or water leakage protection operation based on the second water leakage signal.
In practical application, the water leakage detection unit can integrate the water leakage detection function into a single circuit board, so that the function is modularized, and the replacement/maintenance is more convenient.
In some embodiments, the main control unit performs a water leakage alarm operation and/or a water leakage protection operation based on the second water leakage signal, and may further include:
and when the main control unit receives the second water leakage signal for the preset times in a preset time period, executing the water leakage alarm operation and/or the water leakage protection operation.
It should be understood that the preset time period and the preset number of times can be set according to the requirement, for example, the preset time period can be 100ms, and the preset time can be 50 times, which is not limited herein.
In some embodiments, the water leak warning operation includes: an acoustic/optical alarm and/or an alarm message to the user.
In some embodiments, the water leakage protection operation comprises: stopping the underwater operation, and/or turning off the power supply.
Optionally, the underwater operation device further comprises:
and the alarm device (not shown) is communicated with the main control unit and is used for receiving the alarm signal sent by the main control unit and carrying out water leakage alarm.
In some embodiments, the alert device may include: indicator lights and/or speakers. In some embodiments, the alert device may further comprise a display device for displaying the alert information to a user.
According to the water leakage detection device and the underwater operation equipment provided by the utility model, the detection unit and the judgment unit are isolated from other circuits, so that the interference of other circuits on the detection unit and the judgment unit is avoided, the anti-interference capability is enhanced, and the accuracy and the sensitivity of the detection unit and the judgment unit on water leakage detection are improved.
Those of ordinary skill in the art will understand that: the discussion of any embodiment above is meant to be exemplary only, and is not intended to intimate that the scope of the disclosure, including the claims, is limited to these examples; within the idea of the utility model, also features in the above embodiments or in different embodiments may be combined, steps may be implemented in any order, and there are many other variations of the different aspects of the utility model as described above, which are not provided in detail for the sake of brevity.
The embodiments of the utility model are intended to embrace all such alternatives, modifications and variances that fall within the broad scope of the appended claims. Therefore, any omissions, modifications, substitutions, improvements and the like that may be made without departing from the spirit and principles of the utility model are intended to be included within the scope of the utility model.
Claims (10)
1. A water leakage detection device, comprising:
a detection unit for detecting whether water leakage occurs;
the judging unit is connected with the detecting unit and used for sending a first water leakage signal when the detecting unit detects that water leakage occurs;
and the isolation unit is connected with the judgment unit and used for isolating the judgment unit from the main control unit and converting the first water leakage signal into a second water leakage signal to be sent to the main control unit.
2. The apparatus of claim 1, wherein the detection unit comprises:
a water absorption member for absorbing water when water leakage occurs;
the water absorption component is connected between the two water leakage detection components;
wherein the water absorption member absorbs water to cause the two water leakage detection members to be continuously short-circuited, thereby detecting the occurrence of water leakage.
3. The apparatus as claimed in claim 2, wherein a first water leakage detecting member of the two water leakage detecting members is connected to the judging unit through a first connector, and a second water leakage detecting member of the two water leakage detecting members is grounded through the first connector.
4. The apparatus according to claim 1, wherein the judging unit includes:
the comparator comprises a first input end, a second input end and an output end, wherein the first input end is connected to a reference voltage, and the second input end is connected to the output end of the detection unit;
when the voltage of the detection signal output by the detection unit is smaller than the reference voltage, the output end of the comparator outputs the first water leakage signal.
5. The apparatus of claim 4, further comprising: an isolated power supply comprising a positive input terminal, a negative input terminal, a positive output terminal and a negative output terminal, wherein,
the positive input end is connected with a power supply, the negative input end is grounded, and the positive input end is connected with the negative input end through a first capacitor;
the positive output end is connected with the first input end through a first resistor and used for providing the reference voltage, the negative output end is grounded, and the positive output end is connected with the negative output end through a second capacitor.
6. The apparatus of claim 5, wherein a connection point of the first resistor to the first input terminal is further connected to ground via a second resistor, and wherein the positive output terminal is further connected to the second input terminal via a third resistor.
7. The device of claim 1, wherein the isolation unit comprises an optical coupler isolator, wherein the optical coupler isolator is turned on when the determination unit outputs the first water leakage signal, and the optical coupler isolator outputs the second water leakage signal.
8. The device of claim 2, wherein the bibulous member comprises bibulous cotton.
9. An underwater operation device, comprising: a main control unit and a water leakage detection device according to any one of claims 1-8; wherein the content of the first and second substances,
when the water leakage detection unit detects water leakage, sending a corresponding second water leakage signal to the main control unit;
and the main control unit executes water leakage alarm operation and/or water leakage protection operation based on the second water leakage information.
10. The apparatus of claim 9, further comprising:
and the alarm device is communicated with the main control unit and is used for receiving the alarm signal sent by the main control unit and carrying out water leakage alarm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121237589.9U CN215524929U (en) | 2021-06-03 | 2021-06-03 | Water leakage detection device and underwater operation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121237589.9U CN215524929U (en) | 2021-06-03 | 2021-06-03 | Water leakage detection device and underwater operation equipment |
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| Publication Number | Publication Date |
|---|---|
| CN215524929U true CN215524929U (en) | 2022-01-14 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121237589.9U Expired - Fee Related CN215524929U (en) | 2021-06-03 | 2021-06-03 | Water leakage detection device and underwater operation equipment |
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| CN (1) | CN215524929U (en) |
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- 2021-06-03 CN CN202121237589.9U patent/CN215524929U/en not_active Expired - Fee Related
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