CN201974402U - Movable sulfur hexafluoride detecting device - Google Patents

Abstract

The utility model describes a movable sulfur hexafluoride detection device, which is characterized in that the device includes a trolley, a gas sensor arranged in the trolley, and a hand-held collector; the gas sensor adopts sulfur hexafluoride and oxygen content Dual gas sensor. The utility model is provided with a trolley, which carries the gas sensor to move automatically, and can conveniently place the gas sensor in any area where gas detection is required, improves the flexibility and detection range of the gas sensor, and can conveniently perform gas detection; The operator can receive the gas detection results of the gas sensor through wireless transmission in the remote safe area, and display them on the display device, so that the operator can perform real-time detection of the gas detection results in the safe area, avoiding It eliminates the necessity for the operator to enter the dangerous detection area, and ensures the personal safety of the operator.

Description

A mobile sulfur hexafluoride detection device

technical field

The utility model relates to a detection device for harmful gas, in particular to a movable sulfur hexafluoride detection device.

Background technique

At present, the harmful gas detection device in the prior art includes a movable harmful gas detection and alarm device and a fixed harmful gas detection and alarm device.

The mobile harmful gas detector assembles the sensor, measuring circuit, display, alarm, rechargeable battery, air pump and other components in a housing to become an integrated instrument, small and light, easy to carry, pump suction sampling, can be carried out anytime and anywhere For testing, the pocket instrument is a kind of mobile instrument, which generally does not have a pump for diffusion sampling, is powered by a dry battery, and is small in size. The disadvantage of this kind of detector is that when the movable harmful gas detector is used for detection, the staff must carry the detector into the area where the harmful gas is scattered for detection, and the harmful gas may cause danger to the personal safety of the staff ;

The fixed harmful gas detector is fixed at the site to be detected, and can continuously and automatically detect the corresponding harmful gas, automatically alarm when the harmful gas exceeds the limit, and some can automatically control the exhaust fan, etc. Fixed instruments are divided into two types: one-piece and split-type. Integrated fixed harmful gas detection and alarm instrument: same as the mobile instrument, the difference is that it is installed on site, continuous automatic detection and alarm, mostly diffuse sampling. Split-type fixed harmful gas detection and alarm instrument: the sensor and signal transmission circuit are assembled in an explosion-proof housing, commonly known as the probe, installed on site (hazardous place); the second part includes data processing, secondary display, alarm control and power supply, Assembled into a controller, commonly known as a secondary instrument, installed in the control room (safe place). Probe diffusion sampling detection, secondary instrument display alarm. The disadvantage of this type of fixed detector is that the detector is fixed on the detection site, and the detection point cannot be moved and adjusted at will, which limits the detection range of the detector. At the same time, it is impossible to judge whether the monitoring device is good or not in time, and people need to verify the situation regularly.

Utility model content

The utility model provides a movable sulfur hexafluoride detection device, which can freely move and adjust the detection point at the detection site, improves the flexibility and detection range, and can judge the quality of the monitoring device in time to ensure the normal operation of the device.

The utility model provides a movable sulfur hexafluoride detection device, which is characterized in that the device includes a trolley, a gas sensor arranged in the trolley, and a hand-held collector; the utility model provides a

The above-mentioned gas sensor adopts sulfur hexafluoride and oxygen content double gas sensor.

The above-mentioned handheld collector includes a housing, a display device and an input device arranged on the housing, and a display and alarm control circuit arranged inside the housing;

The above-mentioned display and alarm control circuit is connected with the display device and the input device circuit; it is also connected with the above-mentioned gas sensor through wireless communication.

The trolley mentioned above comprises a car body, several wheels and guiding devices arranged at the bottom of the car body; the wheels and guiding devices are connected by rotating shafts.

The car body shell of above-mentioned dolly is all set as shutter structure.

Pre-set the gas detection point and the starting point of the car, first edit the guiding device according to the terrain of the detected area, and set the driving track of the car. After the setting is completed, start the motor of the trolley, drive the wheels and the trolley to move, and the trolley automatically moves to the preset gas detection point under the guidance of the guide device.

The gas sensor detects the gas at the gas detection point, and sends the detection data to the hand-held collector through wireless communication. The display and alarm control circuit receives the gas detection data of the gas sensor and sends it to the display device. The gas detection data sent by the detection data is displayed to the operator. Among them, when the oxygen content is lower than or the sulfur hexafluoride concentration exceeds the standard, the gas sensor will send out an alarm signal, which will be transmitted to the hand-held collector through wireless transmission, and the operator will be alarmed through the display device.

Compared with the harmful gas detection device of the prior art, the movable sulfur hexafluoride detection device of the utility model has the advantage that the utility model is provided with a trolley, which carries the gas sensor to move automatically, and the gas sensor can be conveniently placed in any required place. The area for gas detection improves the flexibility and detection range of the gas sensor, allowing for convenient gas detection;

The utility model is equipped with a hand-held collector, and the operator can receive the gas detection result of the gas sensor through wireless transmission in the remote safe area, and display it through the display device, so that the operator can detect the gas in the safe area As a result, real-time detection eliminates the need for operators to enter dangerous detection areas and ensures the personal safety of operators.

Description of drawings

Fig. 1 is the structural representation of the movable sulfur hexafluoride detection device of the present invention;

Fig. 2 is a block diagram of the movable sulfur hexafluoride detection device of the present invention.

Detailed ways

Below in conjunction with accompanying drawing, illustrate the specific embodiment of the present utility model.

As shown in FIG. 1 , the utility model describes a movable sulfur hexafluoride detection device, which includes a trolley 1 , a gas sensor 2 installed in the trolley 1 , and a hand-held collector 3 .

Wherein gas sensor 2 adopts sulfur hexafluoride and oxygen content double gas sensor. It includes an oxygen content sensor and a sulfur hexafluoride sensor. The oxygen content sensor uses imported electrochemical products from Japan or Germany. The service life can reach five years. The detection range is between 14% and 26%. When the oxygen content is lower than 18.6% When the alarm signal is sent, it can meet the requirements of this device. The sulfur hexafluoride sensor adopts a high-voltage corona sensor, which includes a metal cavity and a probe set in the cavity. There is an insulating gap between the probe and the cavity. When the two poles are added When the high voltage is applied, a tip discharge will occur, that is, a corona field will be formed between the gaps. When the insulating properties of the gas in the air change, the power of the corona field will change sharply. By detecting the change of the discharge current, it can be Detect the change in the concentration of insulating gas contained in the air. When the sensor detects that the change in the concentration reaches the limit of 1000ppm, an alarm signal will be sent. The gas sensor 2 is also circuit-connected with a wireless communication circuit 21 , and establishes a communication connection with the hand-held collector 3 through the wireless communication circuit 21 .

The handheld collector 3 includes a housing 31 , a display device 32 and an input device 33 disposed on the housing 31 , and a display and alarm control circuit 34 disposed inside the housing 31 . The display and alarm control circuit 34 is connected with the display device 32 and the input device 33 . The display and alarm control circuit is also connected with a wireless communication circuit 35, through which a wireless communication connection with the gas sensor 2 is established. The display device 32 is a liquid crystal display, and the input device 33 is a plurality of control buttons.

The trolley 1 includes a car body 11, four wheels 12 and a guide device 13 arranged at the bottom of the car body 11, wherein two wheels 12 and the guide device 13 are connected by a rotating shaft to guide the steering of the wheels 12. Also be provided with motor and lithium battery in car body 11, this motor is connected with wheel 12 by rotating shaft, and lithium battery supplies power to motor, and motor start can drive wheel 12 to rotate and move, and drives dolly 1 to advance. The shell of the car body 11 is all set as a louver structure, and the gas can pass into the inner cavity of the car body 11, so that the gas sensor 2 can detect the gas.

The working principle of the guide device 13 needs to be edited according to the topography of the detected area before the work is performed, and the movement track of the trolley 1 is set in the guide device 13 . When the trolley 1 is working, it is only necessary to start the motor to drive the wheels 12 to rotate, and the guiding device 13 will guide the wheels 12 to change direction according to the preset driving track, and guide the trolley 1 to a preset detection point.

The operation process of the movable sulfur hexafluoride detection device of the present invention will be described below in conjunction with FIG. 2 .

Preset the gas detection point and the starting point of the car, first edit the guiding device 13 according to the terrain of the detected area, and set the driving track of the car 1 with the starting point of the car as the starting point and the gas detection point as the end point. After the setting is completed, start the motor of the trolley 1 at the preset starting point to drive the wheels 12 and the trolley 1 to move, and the trolley 1 automatically moves to the preset gas detection point under the guidance of the guide device 13 .

The gas sensor 2 detects the gas at the gas detection point, and sends the detection data to the wireless communication circuit 35 of the hand-held collector 3 through the wireless communication circuit 21, and the display and alarm control circuit 34 receives the gas detection of the gas sensor 2 The data is sent to the display device 32, and the display device 32 displays the gas detection data sent by the gas detection data to the operator in real time. When the oxygen content is lower than 18.6% or the sulfur hexafluoride concentration reaches 1000ppm, the gas sensor 2 sends out an alarm signal, which is transmitted to the hand-held collector 3 through wireless transmission, and the operator is given an alarm through the display device 32 .

Although the content of the present invention has been described in detail through the above preferred embodiments, it should be recognized that the above description should not be considered as a limitation of the present invention. Various modifications and substitutions of the present utility model will be obvious to those skilled in the art after reading the above content. Therefore, the protection scope of the present utility model should be defined by the appended claims.

Claims (4)

1. a removable sulfur hexafluoride sniffer is characterized in that, this device comprises dolly (1), is arranged on the gas sensor (2) in the described dolly (1), and hand-held collector (3);

Described gas sensor (2) adopts sulfur hexafluoride and oxygen level double gas sensors.

2. removable sulfur hexafluoride sniffer as claimed in claim 1, it is characterized in that, described hand-held collector (3) comprises housing (31), be arranged on display device (32) and input media (33) on the housing (31), and be arranged on housing (31) inner demonstration and alarm control circuit;

Described demonstration is connected with input media (33) circuit with described display device (32) with alarm control circuit; Also be connected by wireless telecommunications with described gas sensor (2).

3. removable sulfur hexafluoride sniffer as claimed in claim 1 is characterized in that described dolly (1) comprises car body (11), is arranged on the some wheels (12) and the guide piece (13) of described car body (11) bottom; Connect by rotating shaft between described wheel (12) and the guide piece (13).

4. removable sulfur hexafluoride sniffer as claimed in claim 1 is characterized in that, car body (11) shell of described dolly (1) all is made as shutter.

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