CN219178821U

CN219178821U - Device for detecting hydrogen bromide in waste gas of fixed pollution source

Info

Publication number: CN219178821U
Application number: CN202223592690.3U
Authority: CN
Inventors: 王冬雪; 温丽梅; 王跃男; 刘禹涵
Original assignee: Shenyang Huahang Testing Technology Co ltd
Current assignee: Shenyang Huahang Testing Technology Co ltd
Priority date: 2022-12-30
Filing date: 2022-12-30
Publication date: 2023-06-13
Anticipated expiration: 2032-12-30

Abstract

The utility model relates to the technical field of hydrogen bromide detection, in particular to a device for detecting hydrogen bromide in waste gas with a fixed pollution source, which comprises a gas detection mechanism and a concentration mechanism, wherein the concentration mechanism is arranged on the gas detection mechanism; the gas detection mechanism comprises a gas detector and a gas detection probe, and the gas detection probe is arranged at the lower end of the gas detector; the concentration mechanism comprises a compression box, a compression shell, a protective shell, a driven gear, a first screw, a second screw, a driving gear and a motor, wherein the compression box is fixedly connected to the lower end of the gas detector. The utility model overcomes the defects of the prior art, and the content of hydrogen bromide in the air can be increased after the air is compressed by the concentration mechanism, so that the air is easier to detect, an alarm can be triggered at the first time to remind workers of hydrogen bromide leakage, the workers can be evacuated rapidly, and the safety risk is reduced.

Description

Device for detecting hydrogen bromide in waste gas of fixed pollution source

Technical Field

The utility model relates to the technical field of hydrogen bromide detection, in particular to a device for detecting hydrogen bromide in waste gas of a fixed pollution source.

Background

Hydrogen bromide is an inorganic compound, has a chemical formula of HBr, is miscible with water, can be dissolved in ethanol and acetic acid, is colorless gas under the standard condition, is mainly used for preparing various bromine compounds, and can also be used in industries of medicines, dyes, fragrances and the like. When hydrogen bromide leaks, people in the leaked pollution area should be quickly evacuated to the upwind position and isolated until the gas is exhausted. Emergency treatment personnel are advised to wear self-contained positive pressure respirators, wear chemical protective clothing, shut off air supply, spray ammonia or other dilute lye for neutralization, collect and treat waste water, and then pump or force vent.

When the common hydrogen bromide leaks slightly, the air at the pollution source can dilute the hydrogen bromide, so that the concentration of the hydrogen bromide in the air is low in the initial leakage, the hydrogen bromide is difficult to detect by the detection device, and an alarm cannot be triggered at the first time.

Disclosure of Invention

Aiming at the defects of the prior art, the utility model provides a device for detecting hydrogen bromide in waste gas of a fixed pollution source, overcomes the defects of the prior art, and aims to solve the problems that when common hydrogen bromide slightly leaks, air at the pollution source dilutes the hydrogen bromide, so that the concentration of the hydrogen bromide in the air is low in the initial leakage, the hydrogen bromide is difficult to detect by a detection device and an alarm cannot be triggered in the first time.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the device for detecting the hydrogen bromide in the waste gas of the fixed pollution source comprises a gas detection mechanism and a concentration mechanism, wherein the concentration mechanism is arranged on the gas detection mechanism;

the gas detection mechanism comprises a gas detector and a gas detection probe, and the gas detection probe is arranged at the lower end of the gas detector;

the concentrating mechanism comprises a compression box, a compression shell, a protective shell, a driven gear, a first screw rod, a second screw rod, a driving gear and a motor, wherein the compression box is fixedly connected to the lower end of the gas detector, the gas detector is located in the compression box, the compression shell is fixedly connected with the compression box, the first screw rod and the second screw rod are both rotationally connected to the inside of the compression shell, one side of the compression shell, which is far away from the compression box, is welded with the protective shell, the driven gear is rotationally connected to one side of the compression shell, the driven gear is fixedly connected with the end part of the first screw rod, the driving gear is rotationally connected to the compression shell, the driving gear is meshed with the driven gear, the motor is mounted on the protective shell, and an output shaft of the motor is welded with the driving gear.

As a preferable technical scheme of the utility model, the gas detector is provided with an alarm.

As a preferable technical scheme of the utility model, a box door is hinged on the compression box, and a rubber sealing gasket is adhered to the inner side of the compression box, which is close to the box door.

As a preferable technical scheme of the utility model, the compression box is rotationally connected with the electric push rod, the inner side wall of the box door is rotationally connected with the telescopic shaft, and the telescopic shaft is welded with the output shaft of the electric push rod.

As a preferable technical scheme of the utility model, the compression shell is communicated with an exhaust pipe, the compression shell is communicated with an air inlet pipe, and one end of the exhaust pipe penetrates through the compression box and is inserted into the compression box.

As a preferable embodiment of the present utility model, the first screw is arranged in parallel with the second screw, and the first screw is meshed with the second screw.

Compared with the prior art, the utility model has the beneficial effects that:

the motor drives the driving gear to rotate, and then drives the driven gear to rotate, make first screw rod rotate, first screw rod rotates and can drive the synchronous rotation of second screw rod, when first screw rod and second screw rod rotate, can produce negative pressure in its front end intake pipe department, inhale outside air in the compression shell, the air compresses along with the screw rod rotation in the compression shell, and send into the compression incasement by the blast pipe, the air can increase its internal hydrogen bromide's content after the compression, thereby make it more easily detected, can trigger the siren in the first time, remind the staff to have hydrogen bromide to leak, make the staff withdraw fast, reduce the security risk.

Drawings

FIG. 1 is a schematic diagram of the structure of the present utility model;

FIG. 2 is a front view of the present utility model;

fig. 3 is a schematic top view of the compression shell of the present utility model.

In the figure: 11. a gas detector; 12. an alarm; 13. a gas detection probe; 21. a compression box; 22. a door; 23. a rubber gasket; 24. a compression shell; 25. an exhaust pipe; 26. an air inlet pipe; 27. a protective shell; 28. a driven gear; 29. a first screw; 210. a second screw; 211. a drive gear; 212. a motor; 31. an electric push rod; 32. a telescopic shaft.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-3, an apparatus for detecting hydrogen bromide in exhaust gas of a stationary pollution source includes a gas detection mechanism and a concentration mechanism, the concentration mechanism being mounted on the gas detection mechanism; the gas detection mechanism is used for detecting the content of hydrogen bromide at the fixed pollution source, the concentration mechanism is used for compressing the hydrogen bromide air at the fixed pollution source and improving the concentration of the hydrogen bromide, so that the gas detection mechanism can conveniently detect whether leaked hydrogen bromide exists at the first time.

Referring to fig. 1 and 2, the gas detection mechanism includes a gas detector 11 and a gas detection probe 13, the gas detection probe 13 being mounted at a lower end of the gas detector 11; the gas detecting probe 13 is used for absorbing the gas and detecting the content of hydrogen bromide in the gas. The gas detector 11 is provided with an alarm 12, and the alarm 12 is used for triggering an alarm.

Referring to fig. 1 and 3, the concentration mechanism includes a compression box 21, a compression shell 24, a protection shell 27, a driven gear 28, a first screw 29, a second screw 210, a driving gear 211 and a motor 212, the compression box 21 is fixedly connected to the lower end of the gas detector 11, the gas detection probe 13 is located in the compression box 21, and the compression box 21 is used for storing air in a compressed target area, so that the concentration of hydrogen bromide in the air is improved, the concentration of hydrogen bromide is easily detected by the gas detector 11, the alarm 12 is triggered at the first time, the staff is reminded of hydrogen bromide leakage, the staff is evacuated rapidly, and the safety risk is reduced. The compression shell 24 is fixedly connected with the compression box 21, the first screw 29 and the second screw 210 are both rotationally connected to the inside of the compression shell 24, one side, far away from the compression box 21, of the compression shell 24 is welded with the protective shell 27, the driven gear 28 is rotationally connected to one side of the compression shell 24, the driven gear 28 is fixedly connected with the end part of the first screw 29, the driving gear 211 is rotationally connected to the compression shell 24, the driving gear 211 is in meshed connection with the driven gear 28, the motor 212 is mounted on the protective shell 27, and the output shaft of the motor 212 is welded with the driving gear 211. The first screw 29 is arranged in parallel with the second screw 210, and the first screw 29 is intermeshed with the second screw 210. The motor 212 drives the driving gear 211 to rotate and then drives the driven gear 28 to rotate, so that the first screw 29 rotates, the first screw 29 rotates to drive the second screw 210 to synchronously rotate, when the first screw 29 and the second screw 210 rotate, negative pressure is generated at the front end air inlet pipe 26 of the first screw 29 and the second screw 210, external air is sucked into the compression shell 24, the air is compressed in the compression shell 24 along with the rotation of the screws and is sent into the compression box 21 by the air outlet pipe 25, and after the air is compressed, the content of hydrogen bromide in the air is increased, so that the air is easier to detect, and the alarm 12 can be triggered at the first time.

Specifically, referring to fig. 1, a box door 22 is hinged to a compression box 21, and a rubber gasket 23 is adhered to the inner side of the compression box 21 adjacent to the box door 22. The compression box 21 is connected with the electric putter 31 in the rotation, and the inside wall of chamber door 22 rotates and is connected with telescopic shaft 32, and telescopic shaft 32 welds with the output shaft of electric putter 31. The electric push rod 31 can push the telescopic shaft 32 to move, so as to drive the box door 22 to rotate, so that the box door 22 can be in an opening state and a closing state, when the concentration mechanism works, the box door 22 is closed, gas can be always compressed in the compression box 21, and when the pressure exceeds a threshold value, the box door 22 is opened, and the gas is discharged and decompressed.

Specifically, referring to fig. 1, the compression casing 24 is connected to an exhaust pipe 25, an intake pipe 26 is connected to the compression casing 24, and one end of the exhaust pipe 25 passes through the compression box 21 and is inserted into the compression box 21. The gas is sucked in by the gas inlet pipe 26 and discharged by the gas outlet pipe 25.

Working principle: the motor 212 drives the driving gear 211 to rotate and then drives the driven gear 28 to rotate, so that the first screw 29 rotates, the first screw 29 rotates to drive the second screw 210 to synchronously rotate, when the first screw 29 rotates with the second screw 210, negative pressure is generated at the front end air inlet pipe 26 of the first screw 29, external air is sucked into the compression shell 24, the air is compressed in the compression shell 24 along with the rotation of the screws and is sent into the compression box 21 through the air outlet pipe 25, the content of hydrogen bromide in the air is increased after the air is compressed, the air is easier to detect, the alarm 12 can be triggered at first time, the air in the compression box 21 is used for storing the compressed air in a target area, the concentration of the hydrogen bromide in the air is improved, the air is easy to detect by the gas detector 11, the alarm 12 is triggered at first time, workers are reminded of hydrogen bromide leakage, the workers are evacuated rapidly, and the safety risk is reduced.

Finally, it should be noted that: in the description of the present utility model, it should be noted that the azimuth or positional relationship indicated by the terms "vertical", "upper", "lower", "horizontal", etc. are based on the azimuth or positional relationship shown in the drawings, and are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or element referred to must have a specific azimuth, be constructed and operated in a specific azimuth, and thus should not be construed as limiting the present utility model.

In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model can be understood by those of ordinary skill in the art according to the specific circumstances.

The foregoing description is only a preferred embodiment of the present utility model, and the present utility model is not limited thereto, but it is to be understood that modifications and equivalents of some of the technical features described in the foregoing embodiments may be made by those skilled in the art, although the present utility model has been described in detail with reference to the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a device for detecting hydrogen bromide in fixed pollution source waste gas, includes gas detection mechanism and enrichment facility, its characterized in that: the concentration mechanism is arranged on the gas detection mechanism;

the gas detection mechanism comprises a gas detector (11) and a gas detection probe (13), and the gas detection probe (13) is arranged at the lower end of the gas detector (11);

the concentration mechanism comprises a compression box (21), a compression shell (24), a protection shell (27), a driven gear (28), a first screw (29), a second screw (210), a driving gear (211) and a motor (212), wherein the compression box (21) is fixedly connected to the lower end of the gas detector (11), the gas detection probe (13) is located in the compression box (21), the compression shell (24) is fixedly connected with the compression box (21), the first screw (29) and the second screw (210) are all rotationally connected to the inside of the compression shell (24), one side of the compression shell (24) away from the compression box (21) is welded with the protection shell (27), the driven gear (28) is rotationally connected to one side of the compression shell (24), the driven gear (28) is fixedly connected with the end part of the first screw (29), the driving gear (211) is rotationally connected to the compression shell (24), the driving gear (211) is rotationally connected with the motor (28) is meshed with the driven gear (212), and the motor (27) is mounted on the protection shell (212).

2. An apparatus for detecting hydrogen bromide in an exhaust gas from a stationary source as claimed in claim 1, wherein: an alarm (12) is arranged on the gas detector (11).

3. An apparatus for detecting hydrogen bromide in an exhaust gas from a stationary source as claimed in claim 1, wherein: the compression box (21) is hinged with a box door (22), and a rubber sealing gasket (23) is adhered to the inner side of the compression box (21) close to the box door (22).

4. A device for detecting hydrogen bromide in an exhaust gas from a stationary source as claimed in claim 3, wherein: the compression box (21) is rotationally connected with an electric push rod (31), the inner side wall of the box door (22) is rotationally connected with a telescopic shaft (32), and the telescopic shaft (32) is welded with an output shaft of the electric push rod (31).

5. An apparatus for detecting hydrogen bromide in an exhaust gas from a stationary source as claimed in claim 1, wherein: the compression shell (24) is communicated with an exhaust pipe (25), the compression shell (24) is communicated with an air inlet pipe (26), and one end of the exhaust pipe (25) penetrates through the compression box (21) and is inserted into the compression box (21).

6. An apparatus for detecting hydrogen bromide in an exhaust gas from a stationary source as claimed in claim 1, wherein: the first screw (29) and the second screw (210) are arranged in parallel, and the first screw (29) and the second screw (210) are meshed with each other.