CN219533876U

CN219533876U - Dangerous gas alarm device

Info

Publication number: CN219533876U
Application number: CN202320805480.3U
Authority: CN
Inventors: 孙冰冰
Original assignee: Jiangyin Yuecheng Shengli Biotechnology Co ltd
Current assignee: Jiangyin Yuecheng Shengli Biotechnology Co ltd
Priority date: 2023-04-12
Filing date: 2023-04-12
Publication date: 2023-08-15
Anticipated expiration: 2033-04-12

Abstract

The utility model provides a dangerous gas alarm device, which comprises a shell, wherein one side of the shell is provided with a gas pipe clamp, the other side of the shell is provided with a gas inlet hole in the middle, a centrifugal impeller corresponding to the gas inlet hole is arranged in the shell, a motor for driving the centrifugal impeller to rotate is arranged in the shell, vent hole groups are formed in the periphery of the shell, and a gas sensor and a loudspeaker are arranged in the shell; the dangerous gas alarm device is fixedly arranged at a position on the connecting gas pipe, which is easy to leak, by adopting the gas pipe clamp, and can be found out in time when leakage occurs, so that the safety is improved; the centrifugal impeller is driven to rotate by the motor, so that external air can be driven to enter the shell from the air inlet and then is discharged from the exhaust hole group, the air circulation inside and outside the shell is accelerated, and leakage is found timely.

Description

Dangerous gas alarm device

Technical Field

The utility model belongs to the technical field of gas alarm equipment, and particularly relates to a dangerous gas alarm device.

Background

In a chemical production workshop, leakage of flammable gases such as hydrogen, methane and the like and harmful gases such as ammonia and the like can cause harm to the personal health of on-site workers.

The gas alarm device in the prior art is usually hung on a wall surface (such as a toxic gas alarm device which is disclosed in Chinese patent publication No. CN218413688U and is used for a chemical workshop to facilitate maintenance) or placed on the ground (such as a multifunctional integrated industrial gas monitoring alarm device which is disclosed in Chinese patent publication No. CN 217305966U), and the installation modes are usually at a certain distance from a gas conveying pipeline, so that gas leakage cannot be found in time, and a certain hidden danger exists.

Therefore, a dangerous gas alarm device which can be close to a gas conveying pipeline and timely find gas leakage and improve safety needs to be designed to solve the technical problems faced at present.

Disclosure of Invention

Aiming at the defects existing in the prior art, the utility model provides the dangerous gas alarm device which can be close to a gas conveying pipeline, timely find out gas leakage and improve safety.

The technical scheme of the utility model is as follows: the dangerous gas alarm device comprises a shell, one side of the shell is provided with a gas pipe clamp, the other side of the shell is provided with a gas inlet hole in the middle, a centrifugal impeller corresponding to the gas inlet hole is arranged in the shell, a motor for driving the centrifugal impeller to rotate is arranged in the shell, vent hole groups are formed in the periphery of the shell, and a gas sensor and a loudspeaker are arranged in the shell.

The tracheal clamp is characterized by comprising a U-shaped frame fixedly arranged on one side of the shell, an upper clamping plate is fixedly arranged on the inner side of the upper portion of the U-shaped frame, a lower clamping plate corresponding to the upper clamping plate is arranged on the inner side of the lower portion of the U-shaped frame, a hand screwing bolt is connected to the lower portion of the U-shaped frame in a threaded mode, and the upper end of the hand screwing bolt is connected with the bottom of the lower clamping plate in a rotating mode.

The upper clamping plate and the lower clamping plate are arc-shaped plate bodies, and a buffer cushion is arranged on one side, corresponding to the side between the upper clamping plate and the lower clamping plate.

The air inlet is rotatably provided with an air inlet pipe which is of an L-shaped pipe body structure.

The loudspeaker is fixedly arranged on the inner wall of the shell, and a loudspeaker hole corresponding to the loudspeaker is formed in the shell.

The gas sensor comprises a combustible gas sensor and an ammonia gas sensor.

The exhaust hole group is provided with circular through holes which are arranged in a matrix.

The utility model has the beneficial effects that:

(1) The dangerous gas alarm device is fixedly arranged at a position on the connecting gas pipe, which is easy to leak, by adopting the gas pipe clamp, and can be found out in time when leakage occurs, so that the safety is improved;

(2) The centrifugal impeller is driven to rotate by the motor, so that external air can be driven to enter the shell from the air inlet and then is discharged from the exhaust hole group, the air circulation inside and outside the shell is accelerated, and leakage is found timely.

Drawings

FIG. 1 is a schematic diagram of a dangerous gas alarm device according to the present utility model.

FIG. 2 is a second schematic diagram of the dangerous gas alarm device according to the present utility model.

Fig. 3 is a cross-sectional view at A-A in fig. 2.

Detailed Description

Various exemplary embodiments of the present utility model will now be described in detail with reference to the accompanying drawings. The description of the exemplary embodiments is merely illustrative, and is in no way intended to limit the utility model, its application, or uses. The present utility model may be embodied in many different forms and is not limited to the embodiments described herein. These embodiments are provided so that this disclosure will be thorough and complete, and will fully convey the scope of the utility model to those skilled in the art. It should be noted that: the relative arrangement of parts and steps, the composition of materials, numerical expressions and numerical values set forth in these embodiments should be construed as exemplary only and not limiting unless otherwise specifically stated.

The terms "first," "second," and the like, as used herein do not denote any order, quantity, or importance, but rather are used to distinguish one element from another. The word "comprising" or "comprises" and the like means that elements preceding the word encompass the elements recited after the word, and not exclude the possibility of also encompassing other elements. "upper", "lower", "left", "right", etc. are used merely to indicate relative positional relationships, which may also be changed when the absolute position of the object to be described is changed.

As shown in fig. 1 to 3, the dangerous gas alarm device comprises a shell 1, wherein one side of the shell 1 is provided with a gas pipe clamp 2, the other side of the shell 1 is provided with a gas inlet hole 13 at the center, the inside of the shell 1 is provided with a centrifugal impeller 4 corresponding to the gas inlet hole 13, the inside of the shell 1 is provided with a motor 5 for driving the centrifugal impeller 4 to rotate, the periphery of the shell 1 is provided with a gas exhaust hole group 11, and the inside of the shell 1 is provided with a gas sensor 6 and a loudspeaker 7; in this embodiment, the gas sensor 6 inside the housing 1 is used to detect the concentration of dangerous gases such as combustible gas and ammonia gas, and when the detected concentration is higher than the set concentration, the speaker 7 is triggered to send out an alarm sound to remind related personnel to process in time; the dangerous gas alarm device is fixedly arranged at a position which is easy to leak on a connecting gas pipe by adopting the gas pipe clamp 2, and can be found out in time when leakage occurs, so that the safety is improved; the centrifugal impeller 4 is driven to rotate by the motor 5, so that external air can be driven to enter the shell 1 from the air inlet and then is discharged from the exhaust hole group 11, the air circulation inside and outside the shell 2 is accelerated, and leakage is found in time.

In some embodiments, as a specific implementation mode of the air pipe clamp 2, the air pipe clamp 2 is provided with a U-shaped frame 21 fixedly arranged on one side of the shell 1, an upper clamping plate 22 is fixedly arranged on the inner side of the upper part of the U-shaped frame 21, a lower clamping plate 23 corresponding to the upper clamping plate 22 is arranged on the inner side of the lower part of the U-shaped frame 21, a hand-screwing bolt 24 is connected to the lower part of the U-shaped frame 21 in a threaded manner, and the upper end of the hand-screwing bolt 24 is rotatably connected with the bottom of the lower clamping plate 23; the hand-screwed bolt 24 is screwed and adjusted, the lower clamping plate 23 can be driven to move up and down through the threaded structure between the hand-screwed bolt 24 and the U-shaped frame 21, so that the lower clamping plate 23 is close to or far away from the upper clamping plate 22, and the air pipe clamp 2 is clamped or fixed on the outer side of an air pipe.

In some embodiments, the upper clamping plate 22 and the lower clamping plate 23 are arc-shaped plate bodies, the contact area can be increased through the upper clamping plate 22 and the lower clamping plate 23 of the arc-shaped plate bodies, the clamping stability is improved, the buffer pads 25 are arranged on the corresponding sides between the upper clamping plate 22 and the lower clamping plate 23, the buffer pads 25 are rubber pads bonded on the upper clamping plate 22 and the lower clamping plate 23, friction is increased between the upper clamping plate 22, the lower clamping plate 23 and the outer side of a pipeline, and the clamping stability is improved.

In some embodiments, the air inlet hole 13 is rotatably provided with the air inlet pipe 3, the air inlet pipe 3 is of an L-shaped pipe body structure, and the air inlet pipe 3 can be rotated by 360 degrees to enable the end part of the air inlet pipe 3 to face to a position where gas leakage easily occurs, so that leakage can be found in time.

In some embodiments, the speaker 7 is fixedly disposed on the inner wall of the housing 1, and the housing 1 is provided with a speaker hole 12 corresponding to the speaker 7, so that the sound emitted by the speaker 7 can be emitted outside the housing 1 through the speaker hole 12.

In some embodiments, the gas sensor 6 includes a combustible gas sensor and an ammonia gas sensor, the combustible gas sensor and the ammonia gas sensor are connected with a single-chip microcomputer minimum system through an AD conversion module, the single-chip microcomputer minimum system collects detection values of gas concentrations monitored by the combustible gas sensor and the ammonia gas sensor, compares the detection values with a set value, and when the detection values are higher than the set value, the single-chip microcomputer minimum system outputs a signal to the speaker 7, and the speaker 7 sends out an alarm sound.

In some embodiments, the vent group 11 has circular through holes arranged in a matrix.

Thus, various embodiments of the present utility model have been described in detail. In order to avoid obscuring the concepts of the utility model, some details known in the art have not been described. How to implement the solutions disclosed herein will be fully apparent to those skilled in the art from the above description.

The above examples only represent some embodiments of the utility model, which are described in more detail and are not to be construed as limiting the scope of the utility model. It should be noted that it will be apparent to those skilled in the art that several variations and modifications can be made without departing from the spirit of the utility model, which are all within the scope of the utility model. Accordingly, the scope of protection of the present utility model is to be determined by the appended claims.

Claims

1. A hazardous gas alarm device, characterized in that: the novel air inlet type centrifugal fan comprises a shell, an air pipe clamp is arranged on one side of the shell, an air inlet is formed in the middle of the other side of the shell, a centrifugal impeller corresponding to the air inlet is arranged in the shell, a motor for driving the centrifugal impeller to rotate is arranged in the shell, an exhaust hole group is formed in the periphery of the shell, and a gas sensor and a loudspeaker are arranged in the shell.

2. The hazardous gas warning device according to claim 1, characterized in that: the tracheal clamp is characterized by comprising a U-shaped frame fixedly arranged on one side of the shell, an upper clamping plate is fixedly arranged on the inner side of the upper portion of the U-shaped frame, a lower clamping plate corresponding to the upper clamping plate is arranged on the inner side of the lower portion of the U-shaped frame, a hand screwing bolt is connected to the lower portion of the U-shaped frame in a threaded mode, and the upper end of the hand screwing bolt is connected with the bottom of the lower clamping plate in a rotating mode.

3. The hazardous gas warning device according to claim 2, characterized in that: the upper clamping plate and the lower clamping plate are arc-shaped plate bodies, and a buffer cushion is arranged on one side, corresponding to the side between the upper clamping plate and the lower clamping plate.

4. The hazardous gas warning device according to claim 1, characterized in that: the air inlet is rotatably provided with an air inlet pipe which is of an L-shaped pipe body structure.

5. The hazardous gas warning device according to claim 1, characterized in that: the loudspeaker is fixedly arranged on the inner wall of the shell, and a loudspeaker hole corresponding to the loudspeaker is formed in the shell.

6. The hazardous gas warning device according to claim 1, characterized in that: the gas sensor comprises a combustible gas sensor and an ammonia gas sensor.

7. The hazardous gas warning device according to claim 1, characterized in that: the exhaust hole group is provided with circular through holes which are arranged in a matrix.