CN215115046U

CN215115046U - Tracer gas type leak detector

Info

Publication number: CN215115046U
Application number: CN202121065237.XU
Authority: CN
Inventors: 王合涛
Original assignee: Individual
Current assignee: Individual
Priority date: 2021-05-18
Filing date: 2021-05-18
Publication date: 2021-12-10
Anticipated expiration: 2031-05-18

Abstract

The utility model discloses a tracer gas formula leak hunting appearance relates to tracer gas leakage detection technical field, including the detector host computer that detects tracer gas's sensor, display sensor's measurement numerical value, store tracer gas's gas cylinder, pressure reducer and power, detector host computer and sensor electricity are connected, and the gas cylinder passes through the pressure reducer and connects the pipeline that awaits measuring, and the power is connected with the detector host computer electricity. Injecting tracer gas into the pipeline, adjusting the pressure of pressure reducer, suitably increasing the pressure in the pipeline, moving towards along the pipeline with the sensor and detecting tracer gas, the real-time measuring numerical value of sensor that shows of detector host computer to can confirm the leak source position of pipeline, have higher detection precision.

Description

Tracer gas type leak detector

Technical Field

The utility model relates to a tracer gas leakage detection technical field, concretely relates to tracer gas formula leak hunting appearance for seeking and confirm water supply pipe or other pressure piping system's leak source.

Background

Along with the continuous expansion of city scale and the rising of population, the demand to the water resource also increases day by day, and urban water supply pipe mainly lays in the intensive region of population, and the surrounding environment is comparatively complicated, if water supply pipe takes place to reveal, not only water resource is wasted, still influences people's normal life at the in-process of maintenance pipeline.

The main inaccurate problem in leakage point location that exists of present pipeline leakage point's detection, in actual gas pipeline leakage rush-repair construction, can appear often for finding the condition of leakage point multiple excavation, it is darker when the pipeline buries to let out the leakage quantity less, to crossing, parallel complicated pipeline environment detection error with greatly increased, consequently need improve the requirement that detects the precision in order to satisfy urban pipeline leakage detection.

SUMMERY OF THE UTILITY MODEL

Therefore, the utility model provides a tracer gas formula leak hunting appearance to solve the not high problem of detection precision of pipeline leakage point among the prior art.

In order to achieve the above object, the present invention provides the following technical solutions:

the utility model provides a tracer gas formula appearance that leaks hunting, is including the detector host computer that detects tracer gas's sensor, display sensor's measured value, stores tracer gas's gas cylinder, pressure reducer and power, and detector host computer and sensor electricity are connected, and the gas cylinder passes through the pressure reducer and connects the pipeline that awaits measuring, and the power is connected with the detector host computer electricity.

Further, the tracer gas was a mixture of 5% hydrogen and 95% nitrogen.

Further, the sensor is a contact combustion gas sensor.

Further, the sensor is a hydrogen sensor.

Further, the sensor is electrically connected with the detector host through a telescopic rod and a connecting wire.

Furthermore, the detector host is provided with a display screen, and the display screen is provided with an electric quantity display area and a sensor numerical value display area.

Furthermore, the trace gas type leak detector also comprises an alarm, and the alarm is electrically connected with the detector host.

Further, the power source is a lithium battery.

Furthermore, tracer gas formula leak hunting appearance includes tote box, leather sheath and braces, and the tote box is connected at the both ends of braces, and the detector host computer sets up in the leather sheath.

The utility model has the advantages of as follows: injecting tracer gas into the pipeline, adjusting the pressure of pressure reducer, suitably increasing the pressure in the pipeline, moving towards along the pipeline with the sensor and detecting tracer gas, the real-time measuring numerical value of sensor that shows of detector host computer to can confirm the leak source position of pipeline, have higher detection precision.

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 should be apparent that the drawings in the following description are merely exemplary, and that other embodiments can be derived from the drawings provided by those of ordinary skill in the art without inventive effort.

The structure, ratio, size and the like shown in the present specification are only used for matching with the content disclosed in the specification, so as to be known and read by people familiar with the technology, and are not used for limiting the limit conditions which can be implemented by the present invention, so that the present invention has no technical essential significance, and any structure modification, ratio relationship change or size adjustment should still fall within the range which can be covered by the technical content disclosed by the present invention without affecting the efficacy and the achievable purpose of the present invention.

Fig. 1 is a schematic structural diagram of a trace gas type leak detector provided in an embodiment of the present invention.

In the figure: 1-detector host; 2-a sensor; 3-a power supply; 4, a telescopic rod; 5-an alarm; 6-connecting lines.

Detailed Description

The present invention is described in terms of specific embodiments, and other advantages and benefits of the present invention will become apparent to those skilled in the art from the following disclosure. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

In the present specification, the terms "upper", "lower", "left", "right", "middle", and the like are used for the sake of clarity only, and are not intended to limit the scope of the present invention, and changes or adjustments of the relative relationship thereof are also considered to be the scope of the present invention without substantial changes in the technical content.

As shown in fig. 1, the utility model provides a tracer gas formula leak detector is a specialized instrument that is used for looking for and confirms the leak source of water supply pipe or other pipeline under pressure system, including detecting tracer gas's sensor 2, display sensor's 2 measuring value's detector host computer 1, store tracer gas's gas cylinder, pressure reducer and power 3,

detector host computer

1 and 2 electricity connections of sensor, the gas cylinder passes through the pressure reducer and connects the pipeline that awaits measuring, and power 3 is connected with detector host computer 1 electricity. With tracer gas injection pipeline, adjust the pressure of pressure reducer, suitably increase the pressure in the pipeline, move towards along the pipeline with sensor 2 and detect tracer gas, detector host computer 1 shows the 2 measuring numerical value of sensor in real time to can confirm the leak source position of pipeline, have higher detection precision.

And determining the waiting time according to different buried deep layers and buried media. Dry sand for about 20 minutes. Dry sand wet soil for about 30 minutes, wet sand dry soil for about 40 minutes, clay for about 1 hour. Adding 10 minutes for 5 cm of asphalt and adding half an hour for 20 cm of asphalt. If indoor detection is carried out, the leakage can be upwards penetrated from the gap of the ceramic tile near the leakage point in a few minutes, and the gap inspection close to the pipeline is more convenient.

The method comprises the steps of detecting trace gas by using a sensor 2 along the direction of a pipeline, connecting the sensor 2 with a detector host 1, starting a switch of the detector host 1, initializing the detector host 1, starting the detector normally for 30 seconds, automatically resetting the numerical value of an instrument, enabling the sensor 2 to be parked for a long time and not used, enabling the automatic resetting time to last about three minutes, manually and quickly resetting the instrument if the numerical value reaches the highest point and descends, and manually pressing a reset key if the instrument cannot be automatically reset. The detection can be performed in advance. The gas concentration is detected to rise correspondingly, and the alarm 5 rings when the value exceeds 100.

During detection, the bell mouth of the sensor 2 is placed on the ground downwards, waiting for 3 to 5 seconds is needed, and hydrogen gradually rises and is collected into the chip of the sensor 2 for detection. The waiting time is flexibly adjusted according to the situation. If a pipeline detects that the gas has a numerical value, the display numerical value of the equipment can not be cleared, and the leakage point of the maximum value is continuously found. A clear key can also be pressed to store the maximum value, and the maximum value of three points can be stored. The position where the numerical value is the largest is the position where water leakage occurs, so if site excavation is performed after determining the target position after repeating 2-3 times of confirmation, a probe of the sensor 2 is used for accurately finding a leakage point on the pipeline exposed by excavation for maintenance treatment. And judging whether water leakage exists at other positions or not through a pressure test after the construction and repair are finished.

When the device is used for indoor detection, hydrogen can overflow from a gap near a leakage point due to shallow pipeline buried depth, and the sensor 2 can be placed at the joint of the ceramic tiles for detection. And determining the position near the maximum position of the display value, and then accurately positioning.

In an alternative embodiment, the tracer gas is a mixture of 5% hydrogen and 95% nitrogen. By utilizing the characteristic that the specific gravity of the hydrogen is far smaller than that of the air, the hydrogen overflows from the leakage point and vertically emerges to the ground, can penetrate through soil, concrete, asphalt pavement and the like and is convenient to detect by the sensor 2.

In an alternative embodiment, the sensor 2 is a contact combustion gas sensor.

In an alternative embodiment, the sensor 2 is a hydrogen sensor. During detection, the position of a leakage point is determined along the pipeline or above the road surface of the pipeline by vertically detecting downwards.

In an alternative embodiment, the sensor 2 is electrically connected to the monitor main body 1 via the telescopic rod 4 and the connecting wire 6. The telescopic rod 4 can be extended, so that the sensor 2 can be closer to the ground when a user stands and walks, and detection is convenient. The connecting wire 6 is used for connecting the sensor 2 to the detector host 1, and the connecting wire 6 is made of firm and easy-to-use polyurethane materials, so that the detector is firm and convenient, has elasticity, and is convenient to carry and use.

In an alternative embodiment, the test device main body 1 has a display screen having a power display area and a sensor value display area. The sensor numerical value display area displays the numerical value detected by the hydrogen sensor in real time, and the electric quantity display area can display the electric quantity.

In an alternative embodiment, the trace gas leak detector further comprises an alarm 5, and the alarm 5 is electrically connected with the detector main body 1. The alarm 5 can be a buzzer, and when the sensor 2 detects that the gas concentration is increased to a specific value, the buzzer rings to prompt the gas concentration, so that the detection is convenient.

In an alternative embodiment, the power source 3 is a lithium battery. The lithium battery can be charged, can be used for 30 hours continuously, and the charger can be a charger connected with a commercial power with 220V voltage or a vehicle-mounted charger connected with 12V voltage.

In an alternative embodiment, the tracer gas leak detector comprises a carrying case, a leather sheath and a strap, wherein two ends of the strap are connected with the carrying case, and the detector main unit 1 is arranged in the leather sheath. The effectual protection detector host computer 1 of leather sheath, tracer gas formula leak hunting appearance leave the tote box in, and tote box and braces are convenient for the transport of tracer gas formula leak hunting appearance.

Although the invention has been described in detail with respect to the general description and the specific embodiments, it will be apparent to those skilled in the art that modifications and improvements can be made based on the invention. Therefore, such modifications and improvements are intended to be within the scope of the invention as claimed.

Claims

1. A tracer gas formula appearance that leaks hunting which characterized in that: including detecting tracer gas's sensor (2), demonstration detector host computer (1), the storage of the measurement numerical value of sensor (2) tracer gas's gas cylinder, pressure reducer and power (3), detector host computer (1) with sensor (2) electricity is connected, the gas cylinder passes through the pipeline that awaits measuring is connected to the pressure reducer, power (3) with detector host computer (1) electricity is connected.

2. The tracer gas leak detector of claim 1, wherein: the tracer gas is a mixture of 5% hydrogen and 95% nitrogen.

3. The tracer gas leak detector of claim 1, wherein: the sensor (2) is a contact combustion type gas sensor.

4. The tracer gas leak detector of claim 1, wherein: the sensor (2) is a hydrogen sensor.

5. The tracer gas leak detector of claim 1, wherein: the sensor (2) is electrically connected with the detector host (1) through a telescopic rod (4) and a connecting wire (6).

6. The tracer gas leak detector of claim 1, wherein: the detector host (1) is provided with a display screen, and the display screen is provided with an electric quantity display area and a sensor numerical value display area.

7. The tracer gas leak detector of claim 1, wherein: the tracer gas type leak detector further comprises an alarm (5), and the alarm (5) is electrically connected with the detector main machine (1).

8. The tracer gas leak detector of claim 1, wherein: the power supply (3) is a lithium battery.

9. The tracer gas leak detector of claim 1, wherein: the tracer gas type leak detector comprises a carrying box, a leather sheath and braces, wherein two ends of the braces are connected with the carrying box, and the detector main machine (1) is arranged in the leather sheath.