Leakage monitoring device for hot water supply conveying pipeline

Abstract

The utility model belongs to the technical field of pipeline leakage monitoring, and particularly relates to a hot water supply conveying pipeline leakage monitoring device which comprises a hot water pipe, an outer protection pipe and an insulation protection layer, a detection wire is arranged in the insulation protection layer, the detection wire is connected with a power source, and the detection wire is connected with the hot water pipe through a hot water pipe detector. The outer protection pipe is connected with the detection wire through a hot water pipe detector, and the hot water pipe detector and the outer protection pipe detector are both in electric signal connection with the control module. According to the leakage monitoring device for the hot water supply conveying pipeline, the condition of the hot water pipe can be monitored, the condition of the outer protection pipe can also be monitored, whether leakage exists in the outer protection pipe or the hot water pipe or not can be found in time, and the situation that the damage of the outer protection pipe cannot be found in time, so that an inner pipe is damaged due to the damage of the outer protection pipe is avoided.

Description

Technical Field

[0001] The utility model belongs to the technical field of pipeline leakage monitoring, and in particular relates to a hot water supply pipeline leakage monitoring device. Background Art

[0002] At present, my country's economy is developing rapidly and the quality of life of the people is improving. Central heating has become the main heating method for most cities in northern my country due to its advantages of good energy-saving effect, high efficiency, and easy management and control. Under natural conditions, the heat network pipes will expand and contract due to temperature changes. In order to compensate for the expansion and contraction of the heat network pipes, compensation devices need to be installed at intervals between the heating pipes. Due to factors such as construction and installation technology and natural corrosion, the pipe compensation device is the most prone to leakage in the heat network. Once the heat network leaks or leaks, it will bring great inconvenience to people's lives and thermal energy safety production. The interruption of heating due to leakage will bring huge economic losses and energy waste to the country. Usually, the micro-processes in the heat network are extremely hidden and difficult to be discovered through manual inspections. At the same time, micro-leakages in the heat network can easily lead to large-scale leakages in the heat network.

[0003] The patent with the authorization announcement number CN106838627B discloses a multi-sensor heat network leakage early warning monitoring system, including a reference temperature sensor, a reference conductivity sensor, a pipeline leakage early warning monitor, an outlet flow sensor, an outlet pressure sensor, a heating pipeline, an inlet pressure sensor, an inlet flow sensor, an outlet conductivity sensor, a pipeline temperature monitoring unit and an inlet conductivity sensor; using multi-sensor collaborative monitoring technology, collecting the inlet and outlet pressure and flow data of the heat network pipeline, the temperature and conductivity data below the pipeline, the environmental reference temperature and conductivity data, and using the temperature, conductivity mutation and gradient difference, inlet and outlet pressure, flow difference to judge the heat network operation status; when the heat network leaks or leaks, it can effectively identify the heat network leakage status and reduce unnecessary energy waste. However, the multi-sensor heat network leakage early warning monitoring system provided by the patent cannot detect the situation where water outside the outer protective pipe penetrates into the protective layer after the outer protective pipe is damaged. Utility Model Content

[0004] The utility model aims to provide a hot water supply pipeline leakage monitoring device to solve the technical problems raised in the above background technology.

[0005] In order to achieve the above technical purpose, the technical solution of the utility model is:

[0006] A hot water supply pipeline leakage monitoring device comprises a hot water pipe and an outer protective pipe, an insulating protective layer is arranged between the hot water pipe and the outer protective pipe, two or more detection wires are arranged in the insulating protective layer, and two ends of the detection wires are connected to a power supply;

[0007] One end of the detection wire is connected to a wire detection terminal, the hot water pipe is connected to a hot water pipe detection terminal, the outer protective tube is connected to an outer protective tube detection terminal, a hot water pipe detector is connected between the wire detection terminal and the hot water pipe detection terminal, and an outer protective tube detector is connected between the outer protective tube detection terminal and the wire detection terminal;

[0008] The hot water pipe detector and the outer protective pipe detector are both electrically connected to a control module, and the control module is electrically connected to an alarm module.

[0009] As an improvement, the detection wires are all arranged along the axial direction of the hot water pipe, one end of the wire detection terminal in the detection wire eye is connected to a ring connecting wire, the power supply is provided with a first interface and a second interface, one end of the detection wire is connected to the first interface through the ring connecting wire, and the other end is directly connected to the second interface.

[0010] As a further improvement, the annular connecting wire is coaxially arranged with the hot water pipe, and the length of the detection wire is the same as the length of the hot water pipe and the length of the outer protective pipe.

[0011] As a further improvement, one of the detection wires is located at the upper part of the hot water pipe, and another of the detection wires is located at the upper part of the hot water pipe, and the detection wires are evenly distributed on the annular connecting line.

[0012] As a further improvement, a protective resistor is provided between the annular connecting wire and the power supply, and the power supply is a constant voltage power supply.

[0013] As a further improvement, the annular connecting wire is arranged close to the inner wall of the outer protective tube, and the detection wires are arranged close to the inner wall of the outer protective tube.

[0014] As a further improvement, the annular connecting wire is arranged close to the outer wall of the hot water pipe, and the detection wires are all arranged close to the outer wall of the hot water pipe.

[0015] Due to the adoption of the above technical solution, the beneficial effects of the utility model are:

[0016] The utility model provides a hot water supply pipeline leakage monitoring device. During use, when an outer protective pipe is damaged, water or other impurities in the external environment of the outer protective pipe enter the outer protective pipe through the damaged part of the outer pipe. After the monitoring wire senses it, the corresponding outer protective pipe detector triggers a signal to the control module, and the control module controls the alarm module to alarm. When the hot water pipe is damaged, water or other impurities in the internal environment of the hot water pipe enter the insulating protective layer through the damaged part of the hot water pipe. After the monitoring wire senses it, the corresponding hot water pipe detector triggers a signal to the control module, and the control module controls the alarm module to alarm.

[0017] The hot water supply pipeline leakage monitoring device provided by the utility model can monitor the conditions of the hot water pipe and the outer protective pipe, and can promptly detect whether there is a leakage in the outer protective pipe or the hot water pipe, thereby avoiding the situation where the damage of the outer protective pipe cannot be discovered in time, causing the internal pipe to be damaged due to the damage of the outer protective pipe. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 It is a connection diagram of the outer protection pipe detector and the hot water pipe detector;

[0019] Figure 2 It is a schematic diagram of the connection between the detection wire and the power supply;

[0020] Figure 3 It is a structural schematic diagram of the cross section of the heating pipeline;

[0021] Figure 4 It is a schematic diagram of the distribution of the detection wire and the ring connection wire in the insulation protection layer;

[0022] Among them: 1-outer protective tube, 11-outer protective tube detection terminal, 2-insulating protective layer, 3-hot water pipe, 31-hot water pipe detection terminal, 4-detection wire, 41-wire detection terminal, 5-ring connecting wire, 6-power supply, 7-protective resistor, 8-outer protective tube detector, 9-hot water pipe detector. DETAILED DESCRIPTION

[0023] The present invention is further described below in conjunction with the specific implementation methods and the accompanying drawings. The accompanying drawings are only for illustrative purposes and are only schematic diagrams, not actual drawings, and should not be construed as limiting the present application. In order to better illustrate the embodiments of the present invention, some parts of the accompanying drawings may be omitted, enlarged, or reduced, and do not represent the size of the actual product. It is understandable to those skilled in the art that some well-known structures and their descriptions in the accompanying drawings may be omitted.

[0024] The same or similar numbers in the drawings of the embodiments of the present invention correspond to the same or similar parts; in the description of the present invention, it should be understood that if the terms "upper", "lower", "left", "right" and the like indicate directions or positional relationships based on the directions or positional relationships shown in the drawings, it is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific direction, be constructed and operated in a specific direction. Therefore, the terms describing the positional relationship in the drawings are only used for illustrative purposes and cannot be understood as limitations on the present application. For ordinary technicians in this field, the specific meanings of the above terms can be understood according to specific circumstances.

[0025] like Figure 1-4As shown, a hot water supply pipeline leakage monitoring device includes a hot water pipe 3 and an outer protective pipe 1, an insulating protective layer 2 is provided between the hot water pipe 3 and the outer protective pipe 1, two or more detection wires 4 are provided in the insulating protective layer 2, and two ends of the detection wire 4 are connected to a power supply 6. Specifically, the power supply 6 is a constant voltage power supply 6, and a protective resistor 7 is provided between the detection wire 4 and the power supply 6.

[0026] One end of the detection wire 4 is connected to a wire detection terminal 41, the hot water pipe 3 is connected to a hot water pipe detection terminal 31, the outer protective tube 1 is connected to an outer protective tube detection terminal 11, a hot water pipe detector 9 is connected between the wire detection terminal 41 and the hot water pipe detection terminal 31, and is used to detect the voltage change between the hot water pipe 3 and the detection wire 4, an outer protective tube detector 8 is connected between the outer protective tube detection terminal 11 and the wire detection terminal 41, and is used to detect the voltage change between the outer protective tube 1 and the detection wire 4. Specifically, the hot water pipe detector 9 and the outer protective tube detector 8 can select a voltage measurement sensor. When the outer protective tube 1 or the hot water pipe 3 is damaged, water or other impurities will enter the insulating protective layer 2 through the damaged part of the external tube. After the monitoring wire is sensed, the corresponding outer protective tube detector 8 or the hot water pipe detector 9 will trigger a signal.

[0027] The hot water pipe detector 9 and the outer protective pipe detector 8 are both electrically connected to a control module, and the control module is electrically connected to an alarm module. After the monitoring wire senses environmental changes, the corresponding outer protective pipe detector 8 or hot water pipe detector 9 triggers a signal to the control module, and the control module controls the alarm module to alarm.

[0028] The detection wires 4 are all arranged axially along the hot water pipe 3, and one end of the wire detection terminal 41 in the eye of the detection wire 4 is connected to the ring-shaped connecting wire 5, the power supply 6 is provided with a first interface and a second interface, one end of the detection wire 4 is connected to the first interface through the ring-shaped connecting wire 5, and the other end is directly connected to the second interface. Furthermore, a protective resistor 7 is provided between the ring-shaped connecting wire 5 and the power supply 6.

[0029] The annular connecting wire 5 is coaxially arranged with the hot water pipe 3 , and the length of the detection wire 4 is the same as the length of the hot water pipe 3 and the length of the outer protective tube 1 .

[0030] One detection wire 4 is located at the upper part of the hot water pipe 3 , and another detection wire 4 is located at the upper part of the hot water pipe 3 . The detection wires 4 are evenly distributed on the ring-shaped connecting wire 5 .

[0031] The annular connecting wire 5 is arranged close to the inner wall of the outer protective tube 1 , and the detection wires 4 are arranged close to the inner wall of the outer protective tube 1 , so that damage to the outer protective tube 1 can be detected more quickly.

[0032] The annular connecting wire 5 is arranged close to the outer wall of the hot water pipe 3, and the detection wires 4 are arranged close to the outer wall of the hot water pipe 3, so that damage to the hot water pipe 3 can be detected more quickly.

[0033] During use of this embodiment, when the outer protective tube 1 is damaged, water or other impurities in the external environment of the outer protective tube 1 enters the outer protective tube 1 through the damaged part of the outer tube, and after the monitoring wire senses it, the corresponding outer protective tube detector 8 triggers a signal to the control module, and the control module controls the alarm module to alarm; when the hot water pipe 3 is damaged, water or other impurities in the internal environment of the hot water pipe 3 enter the insulating protective layer 2 through the damaged part of the hot water pipe 3, and after the monitoring wire senses it, the corresponding hot water pipe detector 9 triggers a signal to the control module, and the control module controls the alarm module to alarm.

[0034] The hot water supply pipeline leakage monitoring device provided by the utility model can monitor the conditions of the hot water pipe 3 and the outer protective pipe 1, and can promptly detect whether there is a leakage in the outer protective pipe 1 or the hot water pipe 3, thereby avoiding the situation where the damage of the outer protective pipe 1 cannot be discovered in time, causing the internal pipe to be damaged due to the damage of the outer protective pipe 1.

[0035] The specific implementation methods of the utility model described above do not constitute a limitation on the protection scope of the utility model. Any other corresponding changes and modifications made according to the technical concept of the utility model should be included in the protection scope of the claims of the utility model.

Claims

1. A hot water supply pipeline leakage monitoring device, comprising a hot water pipe and an outer protective pipe, characterized in that: An insulating protective layer is provided between the hot water pipe and the outer protective pipe, two or more detection wires are provided in the insulating protective layer, and two ends of the detection wires are connected to a power source; One end of the detection wire is connected to a wire detection terminal, the hot water pipe is connected to a hot water pipe detection terminal, the outer protective tube is connected to an outer protective tube detection terminal, a hot water pipe detector is connected between the wire detection terminal and the hot water pipe detection terminal, and an outer protective tube detector is connected between the outer protective tube detection terminal and the wire detection terminal; The hot water pipe detector and the outer protective pipe detector are both electrically connected to a control module, and the control module is electrically connected to an alarm module.

2. A hot water supply pipeline leakage monitoring device according to claim 1, characterized in that: The detection wires are all arranged along the axial direction of the hot water pipe, one end of the wire detection terminal in the detection wire eye is connected to a ring-shaped connecting wire, the power supply is provided with a first interface and a second interface, one end of the detection wire is connected to the first interface through the ring-shaped connecting wire, and the other end is directly connected to the second interface.

3. A hot water supply pipeline leakage monitoring device according to claim 2, characterized in that: The annular connecting wire is coaxially arranged with the hot water pipe, and the length of the detection wire is the same as the length of the hot water pipe and the length of the outer protective pipe.

4. A hot water supply pipeline leakage monitoring device according to claim 3, characterized in that: One of the detection wires is located at the upper part of the hot water pipe, and the other detection wire is located at the upper part of the hot water pipe. The detection wires are evenly distributed on the annular connecting line.

5. A hot water supply pipeline leakage monitoring device according to claim 2, characterized in that: A protective resistor is provided between the annular connecting wire and the power supply, and the power supply is a constant voltage power supply.

6. A hot water supply pipeline leakage monitoring device according to any one of claims 2 to 5, characterized in that: The annular connecting wire is arranged close to the inner wall of the outer protective tube, and the detection wires are arranged close to the inner wall of the outer protective tube.

7. A hot water supply pipeline leakage monitoring device according to any one of claims 2 to 5, characterized in that: The annular connecting wire is arranged close to the outer wall of the hot water pipe, and the detection wires are arranged close to the outer wall of the hot water pipe.

Images