CN216899487U - Liquid leakage detection device based on ultrasonic wave - Google Patents
Liquid leakage detection device based on ultrasonic wave Download PDFInfo
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- CN216899487U CN216899487U CN202220375077.7U CN202220375077U CN216899487U CN 216899487 U CN216899487 U CN 216899487U CN 202220375077 U CN202220375077 U CN 202220375077U CN 216899487 U CN216899487 U CN 216899487U
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Abstract
The utility model relates to a liquid leakage detection device based on ultrasonic waves, which comprises a hollow shell provided with an accommodating cavity, a cover body arranged at the port of the shell, an ultrasonic module arranged in the accommodating cavity and a hollow detection tube arranged at the other port of the shell, wherein the outer diameter of the shell is larger than that of the detection tube; the shell is provided with a joint through which a connecting wire of the ultrasonic module passes. When the liquid leakage detection device is used, the liquid leakage detection device is arranged on a horizontal ground outside a liquid storage tank, whether liquid leaks to the ground is judged according to whether the detected data is obviously changed or not by detecting the distance between the ground and an ultrasonic sensor, and then the liquid leakage condition is timely and reliably detected by adopting a non-contact leakage detection device; the liquid leakage detection device has the advantages that the process of installing the liquid storage tank is omitted, the liquid leakage detection device is convenient to install, is suitable for various liquid leakage detection scenes, and improves the utilization rate of the liquid leakage detection device.
Description
Technical Field
The utility model relates to the technical field of leakage detection devices, in particular to a liquid leakage detection device based on ultrasonic waves.
Background
With the rapid development of economy in China and the rapid development of various industries, liquid leakage prevention alarm processing needs to be carried out on important equipment such as hospital medical equipment, data center equipment, liquid transmission pipelines and the like, once a liquid leakage accident occurs, huge losses can be caused to lives and properties of people, and the consequences are difficult to estimate. Therefore, it is necessary to detect the liquid leakage of important facilities, and alarm processing is performed at the first time of an accident, so that the loss can be greatly recovered, and the situation deterioration can be avoided. The existing liquid leakage detection equipment mainly adopts a contact detection sensor for detection, the contact detection sensor needs to occupy a large installation space in practical application, and the durability of the contact detection sensor is higher. With the lengthening of the service time, the aging phenomenon of the contact detection sensor is serious, and the risk of false alarm is caused.
SUMMERY OF THE UTILITY MODEL
The present invention has been made to solve the above-described problems, and an object of the present invention is to provide a liquid leakage detection apparatus based on ultrasonic waves, which is non-contact, has a long service life, is highly durable, and has high detection reliability.
In order to solve the technical problems, the technical scheme adopted by the utility model is as follows:
a liquid leakage detection device based on ultrasonic waves comprises a hollow shell provided with a containing cavity, a cover body arranged at the port of the shell, an ultrasonic module arranged in the containing cavity and a hollow detection tube arranged at the other port of the shell, wherein the outer diameter of the shell is larger than that of the detection tube; the shell is provided with a joint through which a connecting wire of the ultrasonic module passes.
Preferably, the ultrasonic module comprises a main control PCB board and an ultrasonic sensor arranged on the main control PCB board, and the ultrasonic sensor comprises an ultrasonic transmitting probe and an ultrasonic receiving probe which face the detection tube.
Preferably, the ultrasonic sensor is soldered to the main control PCB board through a pin.
Preferably, the main control PCB board is provided with a VCC pin, a GND pin, a Trig pin and an Echo pin, and the connection line includes a power line connected to the VCC pin and a signal line respectively connected to the Trig pin and the Echo pin.
Preferably, the connector is fixed to the housing, and a connection hole for allowing the signal line and the power line to pass through is formed in the connector.
Preferably, the signal line is connected to a dry contact signal source, and the power line is connected to a power supply.
Preferably, the liquid leakage detection device has an overall height of 165-170 mm.
Preferably, the outer diameter of the shell is 120-125mm, and the outer diameter of the detection tube is 80-85 mm.
Preferably, the cover is screwed with the housing.
Preferably, the shell is provided with an external thread, the cover body is provided with an internal thread matched with the external thread, and the shell is circumferentially aligned with the outer wall of the cover body.
The utility model has the advantages that at least:
different from a contact type leakage detection device in the prior art, the liquid leakage detection device based on ultrasonic waves is arranged on the horizontal ground outside a liquid storage tank when in use, and whether liquid leaks to the ground is judged according to whether the detected data is obviously changed or not by detecting the distance between the ground and an ultrasonic sensor, so that the non-contact type leakage detection device is adopted to timely and reliably detect the liquid leakage condition; the liquid leakage detection device is not required to be arranged on the liquid storage tank as a whole, the process of arranging and installing on the liquid storage tank is saved, the liquid leakage detection device is convenient to install, is suitable for various liquid leakage detection scenes, and improves the utilization rate of the liquid leakage detection device.
The liquid leakage detection device based on ultrasonic waves comprises the cover body arranged at one end of the shell, the cover body plays a role in dust prevention and water prevention, the service performance of the ultrasonic module arranged in the shell is guaranteed, the durability of the ultrasonic module is guaranteed, the service life of the whole liquid leakage detection device is prolonged, meanwhile, the aging of the ultrasonic module is effectively slowed down, and the risk of false alarm is avoided.
Drawings
FIG. 1 is a schematic view of an ultrasonic-based liquid leak detection apparatus of the present invention,
FIG. 2 is a schematic view of the interior of the housing;
wherein, 1 is a shell, 2 is a cover, 3 is a detection tube, 4 is a connector, 41 is a connecting hole, 5 is an ultrasonic module, 51 is a main control PCB board, 52 is an ultrasonic emission probe, 53 is an ultrasonic receiving probe, 54 is a VCC pin, 55 is a GND pin, 56 is a Trig pin, and 57 is an Echo pin.
Detailed Description
To facilitate an understanding of the utility model, the utility model will now be described more fully with reference to the accompanying drawings. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It will be understood that when an element is referred to as being "secured to" another element, it can be directly on the other element or intervening elements may also be present. When an element is referred to as being "connected" to another element, it can be directly connected to the other element or intervening elements may also be present.
Example 1
Fig. 1 is a schematic view of an ultrasonic-based liquid leakage detection device according to the present invention, as shown in fig. 1, the liquid leakage detection device includes a hollow housing 1 having a receiving cavity, a cover 2 disposed at a port of the housing, an ultrasonic module 5 disposed in the receiving cavity, and a hollow detection tube 3 disposed at another port of the housing 1, wherein an outer diameter of the housing 1 is larger than an outer diameter of the detection tube 3; the shell is provided with a joint 4 for enabling a connecting wire of the ultrasonic module 5 to pass through.
Fig. 2 is a schematic view of the inside of the casing, and as shown in fig. 2, the ultrasonic module 5 includes a main control PCB 51 and an ultrasonic sensor disposed on the main control PCB 51, and the ultrasonic sensor includes an ultrasonic transmitting probe 52 and an ultrasonic receiving probe 53 disposed toward the detection tube 3.
The ultrasonic sensor is soldered to the main control PCB board 51 through a pin.
Referring to fig. 2, the main control PCB 51 is provided with a VCC pin 54, a GND pin 55, a Trig pin 56, and an Echo pin 57, and the connection line includes a power line connected to the VCC pin 54 and signal lines respectively connected to the Trig pin 56 and the Echo pin 57.
The ultrasonic module 5 in the embodiment of the present invention is preferably an ultrasonic module 5 manufactured by bodhi model number HC129, and the ultrasonic module 5 includes a Trig pin 56 for transmitting an output and an Echo pin 57 for receiving an input. The ultrasonic transmitting and receiving probes are arranged in the same direction and are both arranged in the direction far away from the cover body 2.
The main control system sends a square wave signal of more than 10uS to the Trig pin 56 of the ultrasonic sensor to trigger the ultrasonic sensor to detect, when the detection distance of the sensor is finished, the Echo pin 57 of the sensor outputs a high level, and the sum of round-trip time of ultrasonic wave emission and reflection is calculated through analysis, so that the distance between the sensor and a detection object of the ultrasonic-based liquid leakage detection device can be converted. And judging whether leakage occurs or not according to the fluctuation condition of the measured data by analyzing the data repeatedly measured for many times. If the detection data has obvious change, the liquid leakage can be judged to occur. In addition, by arranging a plurality of liquid leakage detection devices according to the present invention, the position of the liquid leakage detection device where the data fluctuates can be determined, and the leakage can be dealt with in time.
The connector 4 is fixed on the housing 1, and a connection hole 41 for the signal line and the power line to pass through is formed in the connector 4.
The signal line is connected to the dry contact signal source, and the power line is connected to the power supply.
The overall height of the liquid leakage detection device is 165-170mm, and the overall height is the distance between one end of the detection tube 3, which is far away from the shell 1, and one end of the cover body 2, which is far away from the shell 1.
The outer diameter of the shell 1 is 120-125mm, and the outer diameter of the detection tube 3 is 80-85 mm.
Alternatively, the cover 2 is screwed to the housing 1.
The improved water-saving cover is characterized in that an external thread is arranged on the shell 1, the cover body 2 is provided with an internal thread matched with the external thread, and the shell 1 is circumferentially flushed with the outer wall of the cover body 2 after the shell 1 is in threaded fastening connection with the cover body 2.
As a further alternative, the cover 2 and the housing 1 are connected by a snap-fit structure.
The application method and the principle of the liquid leakage detection device based on the ultrasonic wave are as follows:
during installation: fixing the liquid leakage detection device on a horizontal ground corresponding to the liquid storage tank by adopting a fixing structure, so that one end of the detection tube 3 is vertically arranged towards the ground; so that the signal line and the power line are passed out from the connection hole 41 of the connector 4 and are respectively connected with the dry spot signal source and the power supply.
When in use: and sending a square wave signal of more than 10uS to the Trig pin 56 to trigger the ultrasonic sensor to carry out distance detection, and after the distance detection is finished, outputting a high level by the Echo pin 57 after a signal is detected to return. The distance from the ultrasonic sensor of the ultrasonic-based liquid leakage detection device to the detection object can be converted according to the time difference from the triggering of the Trig pin 56 to the receiving of the output of the Echo pin 57, wherein the conversion formula is as follows: the test distance is (high level time) speed of sound (340M/S))/2. By analyzing the measurement data for many times, if the detection data has obvious change, the occurrence of liquid leakage can be judged.
The technical features of the above embodiments can be arbitrarily combined, and for the sake of brevity, all possible combinations of the technical features in the above embodiments are not described, but should be considered as the scope of the present specification as long as there is no contradiction between the combinations of the technical features.
The above examples only express preferred embodiments of the present invention, and the description thereof is more specific and detailed, but not to be construed as limiting the scope of the utility model. It should be noted that, for a person skilled in the art, several variations and modifications can be made without departing from the inventive concept, which falls within the scope of the present invention. Therefore, the protection scope of the present patent shall be subject to the appended claims.
Claims (10)
1. A liquid leakage detection device based on ultrasonic wave, its characterized in that: the ultrasonic detection device comprises a hollow shell provided with a containing cavity, a cover body arranged at the port of the shell, an ultrasonic module arranged in the containing cavity and a hollow detection tube arranged at the other port of the shell, wherein the outer diameter of the shell is larger than that of the detection tube; the shell is provided with a joint through which a connecting wire of the ultrasonic module passes.
2. The liquid leakage detection apparatus according to claim 1, wherein: the ultrasonic module comprises a main control PCB and an ultrasonic sensor arranged on the main control PCB, and the ultrasonic sensor comprises an ultrasonic transmitting probe and an ultrasonic receiving probe which face the detection tube.
3. The liquid leakage detection apparatus according to claim 2, wherein: the ultrasonic sensor is welded on the main control PCB board through a contact pin.
4. The liquid leakage detection apparatus according to claim 2, wherein: be equipped with VCC pin, GND pin, Trig pin and Echo pin on the master control PCB board, the connecting wire include with the power cord that the VCC pin is connected and with the signal line that Trig pin and Echo pin are connected respectively.
5. The liquid leakage detection apparatus according to claim 4, wherein: the connector is fixed on the shell, and a connecting hole for the signal wire and the power wire to pass through is formed in the connector.
6. The liquid leakage detection apparatus according to claim 4, wherein: the signal line is connected to the dry contact signal source, and the power line is connected to the power supply.
7. The liquid leakage detection apparatus according to claim 1, wherein: the overall height of the liquid leakage detection device is 165-170 mm.
8. The liquid leak detection apparatus according to claim 1, characterized in that: the outer diameter of the shell is 120-125mm, and the outer diameter of the detection tube is 80-85 mm.
9. The liquid leakage detection apparatus according to claim 1, wherein: the cover body is in threaded connection with the shell.
10. The liquid leakage detection apparatus according to claim 9, wherein: the shell is provided with an external thread, the cover body is provided with an internal thread matched with the external thread, and the shell is flush with the outer wall of the cover body in the circumferential direction.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220375077.7U CN216899487U (en) | 2022-02-23 | 2022-02-23 | Liquid leakage detection device based on ultrasonic wave |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202220375077.7U CN216899487U (en) | 2022-02-23 | 2022-02-23 | Liquid leakage detection device based on ultrasonic wave |
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| Publication Number | Publication Date |
|---|---|
| CN216899487U true CN216899487U (en) | 2022-07-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202220375077.7U Active CN216899487U (en) | 2022-02-23 | 2022-02-23 | Liquid leakage detection device based on ultrasonic wave |
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| Country | Link |
|---|---|
| CN (1) | CN216899487U (en) |
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- 2022-02-23 CN CN202220375077.7U patent/CN216899487U/en active Active
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