Detection ventilation device

Abstract

The utility model discloses a ventilation detection device which comprises a bottom plate, a gasoline engine generator and a control module are fixedly installed on one side of the top of the bottom plate, the gasoline engine generator is electrically connected with the control module, two installation plates are fixedly installed on the other side of the top of the bottom plate, and ventilation mechanisms are installed on the installation plates. A detection mechanism is installed on the ventilation mechanism, an audible and visual alarm is fixedly installed on the top of the bottom plate, the detection ventilation device can enter a fuel gas well together with a ventilation pipe to detect the content of harmful gas, the detection accuracy of the underground harmful gas is improved, the detection module and the ventilation mechanism are integrally designed, and the detection module and the ventilation mechanism are convenient to use. In the ventilation process, the concentration of harmful gas in the gas well can be automatically detected in real time, detection and ventilation are automatically carried out, experience judgment and operation of workers are not needed, accuracy is high, energy consumption of the workers is small, and ventilation efficiency is high.

Description

Technical Field

[0001] The utility model relates to the technical field of ventilation equipment, in particular to a detection ventilation device. Background Art

[0002] In the daily maintenance and safety management of gas wells, ventilation and detection are two crucial tasks. There may be a variety of harmful gases in gas wells, such as carbon dioxide, methane, and fuel gas. If these gases accumulate in the well, it will not only affect the health and safety of the operators, but may also cause serious accidents such as fire or explosion. At present, when detecting ventilation, the staff will hold the detection instrument to measure at the gas wellhead, but the gas well is deep, and harmful gases (such as leaked gas, methane and carbon dioxide produced by fermentation of underground garbage, etc.) will accumulate underground. The underground ventilation is poor, and the concentration detected at the wellhead cannot reflect the actual content of various gases in the gas well, causing the staff to misjudge. At present, when ventilating gas wells, it is often used to detect first and then exhaust. According to the experience of the staff, it is determined whether to continue exhausting after a certain period of time. This ventilation method is not only troublesome, but also requires the staff to wait all the time, which consumes a lot of energy and the ventilation efficiency is relatively low. Utility Model Content

[0003] In view of the problems existing in the prior art, the utility model discloses a detection ventilation device, which adopts the technical solution of comprising a bottom plate, a gasoline generator and a control module are fixedly installed on one side of the top of the bottom plate, the gasoline generator is electrically connected to the control module, two mounting plates are fixedly installed on the other side of the top of the bottom plate, a ventilation mechanism is installed on the mounting plate, a detection mechanism is installed on the ventilation mechanism, and an audible and visual alarm is fixedly installed on the top of the bottom plate;

[0004] The ventilation mechanism includes a ventilation pipe, a winding disk, a rotating joint, a connecting pipe, a fan and an air guide cover, the end faces at both ends of the winding disk are rotatably connected to the opposite side surfaces at the upper ends of two mounting plates respectively, the ventilation pipe is spirally wound on the winding disk, one end of the ventilation pipe passes through the through hole on the side surface of the middle part of the winding disk and extends to the interior of the winding disk, the fan is fixedly installed in the groove of the top boss of the bottom plate, an air guide cover is fixedly installed on the air outlet of the fan, the air outlet of the air guide cover is connected to one end of the connecting pipe, the other end of the connecting pipe is connected to one end of the ventilation pipe located on the winding disk through a rotating joint, and the fan and the sound and light alarm are electrically connected to the control module.

[0005] As a preferred technical solution of the utility model, the detection mechanism includes a mounting ring and a sensor. The inner side surface of the mounting ring is fixedly connected to the side surface of the movable end of the ventilation pipe. Sensors are fixedly installed in the four grooves on the top of the mounting ring. The four sensors are respectively a carbon dioxide sensor, an oxygen sensor, a methane sensor and a gas sensor. The four sensors are electrically connected to the control module.

[0006] As a preferred technical solution of the utility model, a crank is rotatably installed on the side of one of the mounting plates, the crank is Z-shaped, and one end of the crank passes through a through hole on the side of the mounting plate and is fixedly connected to the middle of the end surface of the winding disk.

[0007] As a preferred technical solution of the utility model, universal wheels are fixedly installed at the four corners of the bottom of the base plate.

[0008] As a preferred technical solution of the utility model, a protective net is fixedly installed at the air inlet of the fan.

[0009] The beneficial effects of the utility model are as follows: the utility model can release the ventilation pipe wound on the winding reel by rotating the winding reel, so that the ventilation pipe can be extended into the gas well. At this time, the sensor at the end of the ventilation pipe can detect the harmful gas content in the gas well, thereby improving the accuracy of the detection of harmful gases in the well. When the harmful gas is detected to be within the standard, the sound and light alarm will always be on to remind people that they can go down to the well for operation. At the same time, the display screen of the control module will display the content of various gases. When the sensor detects that the concentration of harmful gases in the gas well exceeds the standard, the control module will automatically control the fan to work, so that air can pass through the connecting pipe, the rotating The joint and ventilation pipe are transported to the gas well for ventilation, and the detection mechanism and the ventilation mechanism are designed as an integrated whole. During the ventilation process, the concentration of harmful gases in the gas well can be automatically detected in real time. The detection and ventilation are carried out automatically without the need for experience and judgment of the staff. The accuracy is high, the energy consumption of the workers is small, and the ventilation efficiency is high. The crank handle allows people to easily push the winding disk to rotate, which is convenient for the release and winding of the ventilation pipe. The universal wheel allows the bottom plate to be conveniently moved, which improves the flexibility of the detection and ventilation device. The protective net can prevent people from accidentally touching the working fan blades and causing injuries. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the front structure of the utility model;

[0011] Figure 2 This is a schematic diagram of the ventilation mechanism structure of the utility model;

[0012] Figure 3 This is a partial enlarged structural diagram of the utility model at A;

[0013] Figure 4It is a schematic diagram of the back structure of the utility model.

[0014] In the figure: 1 bottom plate, 2 gasoline generator, 3 control module, 4 ventilation mechanism, 41 ventilation pipe, 42 reel, 43 rotary joint, 44 connecting pipe, 45 fan, 46 air guide cover, 5 mounting plate, 6 detection mechanism, 61 mounting ring, 62 sensor, 7 sound and light alarm, 8 crank handle, 9 universal wheel, 10 protection net. DETAILED DESCRIPTION

[0015] Example 1

[0016] like Figures 1 to 4 As shown, the utility model discloses a detection ventilation device, which adopts a technical solution, including a bottom plate 1, a gasoline generator 2 and a control module 3 are fixedly installed on one side of the top of the bottom plate 1, the gasoline generator 2 is electrically connected to the control module 3, two mounting plates 5 are fixedly installed on the other side of the top of the bottom plate 1, a ventilation mechanism 4 is installed on the mounting plate 5, a detection mechanism 6 is installed on the ventilation mechanism 4, a sound and light alarm 7 is fixedly installed on the top of the bottom plate 1, and universal wheels 9 are fixedly installed at the four corners of the bottom of the bottom plate 1, and the bottom plate 1 can be conveniently moved by the universal wheels 9, thereby improving the flexibility of the detection ventilation device;

[0017] The ventilation mechanism 4 includes a ventilation pipe 41, a winding disk 42, a rotary joint 43, a connecting pipe 44, a fan 45 and an air guide cover 46. The end faces of the two ends of the winding disk 42 are rotatably connected to the opposite side faces of the upper ends of the two mounting plates 5. A crank 8 is rotatably installed on the side of one of the mounting plates 5. The crank 8 is Z-shaped. One end of the crank 8 passes through the through hole on the side of the mounting plate 5 and is fixedly connected to the middle part of the end face of the winding disk 42. The crank 8 allows people to easily push the winding disk 42 to rotate, which is convenient for the release and winding of the ventilation pipe 41. The ventilation pipe 41 is spirally wound on the winding disk 42, and one end of the ventilation pipe 41 passes through the winding disk The through hole on the side of the middle part of 42 extends to the interior of the winding reel 42, the fan 45 is fixedly installed in the groove of the top boss of the bottom plate 1, and a protective net 10 is fixedly installed at the air inlet of the fan 45. The protective net 10 can prevent people from accidentally touching the blades of the working fan 45 and causing injuries. An air guide 46 is fixedly installed on the air outlet of the fan 45, and the air outlet of the air guide 46 is connected to one end of the connecting pipe 44, and the other end of the connecting pipe 44 is connected to one end of the ventilation pipe 41 located on the winding reel 42 through a rotating joint 43. The detection mechanism 6 includes a mounting ring 61 and a sensor 62, and the inner side of the mounting ring 61 is connected to the ventilation pipe 4 1 is fixedly connected to the side of the movable end, and sensors 62 are fixedly installed in the four grooves on the top of the mounting ring 61. The four sensors 62 are respectively a carbon dioxide sensor, an oxygen sensor, a methane sensor and a gas sensor. The four sensors 62 are electrically connected to the control module 3, and the fan 45 and the sound and light alarm 7 are electrically connected to the control module 3. The ventilation pipe 41 wound on the winding reel 42 can be released by rotating the winding reel 42, so that the ventilation pipe 41 extends into the gas well. At this time, the sensor 62 at the end of the ventilation pipe 41 will detect the harmful gas content in the gas well. When the harmful gas is detected to be within the standard, the sound and light alarm will It is always on to remind people that they can go down to the well to work. At the same time, the display screen of the control module 3 will show the content of various gases. When the sensor 62 detects that the concentration of harmful gases in the gas well exceeds the standard, the control module 3 will automatically control the fan 45 to operate, so that air can be transported to the gas well through the connecting pipe 44, the rotary joint 43 and the ventilation pipe 41 for ventilation. The detection mechanism 6 and the ventilation mechanism 4 are designed as an integrated whole. During the ventilation process, the concentration of harmful gases in the gas well can be automatically detected in real time. The detection and ventilation are carried out automatically without the need for staff experience, judgment and operation. It has high accuracy, low energy consumption for workers and high ventilation efficiency.

[0018] The working principle of the utility model is as follows: the bottom plate 1 is moved to the gas well mouth, the gasoline generator 2 is started, the gasoline generator 2 supplies power to each electrical component, the crank handle 8 is pushed to rotate, the crank handle 8 drives the winding disk 42 to rotate, the ventilation pipe 41 on the winding disk 42 is released, the movable end of the ventilation pipe 41 is placed in the gas well, the carbon dioxide, oxygen, methane and gas concentrations in the gas well are detected by the sensor 62 on the end of the ventilation pipe 41, and the detected values ​​will be displayed on the display screen on the control module 3, and when the sensor 62 detects that the carbon dioxide, methane and gas concentrations are too high, the control module 3 will automatically control the sound and light alarm 7 to emit sound and flash alarms to remind the staff that there are safety hazards in the gas well and it is forbidden to go down the well. At the same time, the control module 3 will control the fan 45 to work, so that the external air passes through the wind guide cover 46, the connecting pipe 44, and the rotating connector The head 43 and the ventilation pipe 41 are transported to the gas well, so that the air in the gas well can circulate, the harmful gases in the gas well can be discharged to the outside, and the oxygen content in the gas well is sufficient. During the ventilation process, the content of various gases can be detected by the sensor 62. When the content of various gases displayed on the display screen of the control module 3 is normal, the staff can be arranged to enter the gas well to inspect and maintain the gas pipeline. During the inspection and maintenance process, the sensor 62 will detect the carbon dioxide, oxygen, methane and gas concentrations in the gas well. When the gas concentration increases sharply, the control module 3 will automatically control the fan 45 to ventilate the gas well, ensure the oxygen content in the gas well, and avoid hypoxia of the staff. At the same time, the control module 3 will automatically control the sound and light alarm 7 to work, emit sound and flash alarms, and remind the construction personnel in the gas well to evacuate in time and quickly.

[0019] The circuit connection involved in the utility model is a common means used by those skilled in the art, and technical inspiration can be obtained through a limited number of experiments, and it belongs to the widely used existing technology.

[0020] Components not described in detail herein are prior art.

[0021] Although the specific embodiments of the present invention are described in detail above, the present invention is not limited to the above embodiments. Various changes can be made within the knowledge of ordinary technicians in the field without departing from the purpose of the present invention, and modifications or deformations without creative labor are still within the scope of protection of the present invention.

Claims

1. A detection ventilation device, characterized in that: The invention comprises a base plate (1), a gasoline generator (2) and a control module (3) are fixedly mounted on one side of the top of the base plate (1), the gasoline generator (2) and the control module (3) are electrically connected, two mounting plates (5) are fixedly mounted on the other side of the top of the base plate (1), a ventilation mechanism (4) is mounted on the mounting plates (5), a detection mechanism (6) is mounted on the ventilation mechanism (4), and an audible and visual alarm (7) is fixedly mounted on the top of the base plate (1); The ventilation mechanism (4) comprises a ventilation pipe (41), a winding reel (42), a rotary joint (43), a connecting pipe (44), a fan (45) and an air guide cover (46); the end surfaces at both ends of the winding reel (42) are rotatably connected to the opposite side surfaces of the upper ends of the two mounting plates (5); the ventilation pipe (41) is spirally wound on the winding reel (42); one end of the ventilation pipe (41) passes through a through hole on the side surface of the middle part of the winding reel (42) and extends to the side of the winding reel (42); Internally, the fan (45) is fixedly installed in a groove of the top boss of the bottom plate (1), and an air guide cover (46) is fixedly installed on the air outlet of the fan (45). The air outlet of the air guide cover (46) is connected to one end of the connecting pipe (44), and the other end of the connecting pipe (44) is connected to one end of the ventilation pipe (41) located on the winding reel (42) through a rotating joint (43). The fan (45) and the sound and light alarm (7) are electrically connected to the control module (3).

2. A detection ventilation device according to claim 1, characterized in that: The detection mechanism (6) comprises a mounting ring (61) and a sensor (62). The inner side surface of the mounting ring (61) is fixedly connected to the side surface of the movable end of the ventilation pipe (41). The sensors (62) are fixedly installed in four grooves on the top of the mounting ring (61). The four sensors (62) are respectively a carbon dioxide sensor, an oxygen sensor, a methane sensor and a gas sensor. The four sensors (62) are electrically connected to the control module (3).

3. A detection ventilation device according to claim 1, characterized in that: A crank (8) is rotatably mounted on the side of one of the mounting plates (5), the crank (8) being Z-shaped, one end of the crank (8) passing through a through hole on the side of the mounting plate (5) and fixedly connected to the middle of the end surface of the winding disk (42).

4. A detection ventilation device according to claim 1, characterized in that: Universal wheels (9) are fixedly mounted at the four corners of the bottom of the base plate (1).

5. A detection ventilation device according to claim 1, characterized in that: A protective net (10) is fixedly installed at the air inlet of the fan (45).

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