CN106198385B

CN106198385B - Flue gas detection system

Info

Publication number: CN106198385B
Application number: CN201610708419.1A
Authority: CN
Inventors: 汪升; 袁学义; 蔡永厚; 高鑫; 吴渝; 程昕; 徐勇
Original assignee: Hefei Gstar Intelligent Control Technical Co Ltd
Current assignee: Hefei Gstar Intelligent Control Technical Co Ltd
Priority date: 2016-08-23
Filing date: 2016-08-23
Publication date: 2023-10-13
Anticipated expiration: 2036-08-23
Also published as: CN106198385A

Abstract

The invention discloses a smoke detection system, which comprises an insulation box, wherein a gas tank and a heating plate for heating the gas tank are arranged in the insulation box, the gas tank is in a bottle cylinder shape, gas to be detected is communicated into the gas tank from two ends of the gas tank by connecting an air inlet pipe, and the middle part of the gas tank is connected with an exhaust pipe for guiding and discharging the gas to be detected; one end of the air pool is provided with a flange and is connected with the wall of the heat insulation box by a heat insulation pad. By adopting the technical scheme, the air tank is arranged in the insulation box and heated, and the air distribution mode of air inlet at two ends and air exhaust in the middle of the air tank ensures that the detected air is in a proper detected state, thereby improving the detection efficiency and the detection precision.

Description

Flue gas detection system

Technical Field

The invention relates to a gas detection system, in particular to a gas to be detected which is in a stable state to be detected after being heated to carry out detection.

Background

In the prior art, the detected gas is often required to be guided to a place where the detection equipment is convenient to arrange for detection, in general, the gas to be detected is firstly guided into a detection gas tank through a pipeline, the indexes to be detected are mainly gas components and content, and a spectrometry is a conventional detection means.

After the gas to be measured enters the gas tank, a measuring instrument is connected to the gas tank, and the gas needs to be heated and flows along with the gas during measurement, so that the gas presents the characteristic conforming to the site, and the measured result is matched with the actual condition of the site. Because the setting and the arrangement of the heating unit in the prior art are unreasonable, the effective heating of the gas to be measured cannot be ensured, meanwhile, the measuring instrument is damaged, and the measuring precision cannot be ensured.

Disclosure of Invention

The invention aims to provide a flue gas detection system which ensures the heating and flow state control of the measured gas and improves the measurement precision and stability.

In order to achieve the above purpose, the invention adopts the following technical scheme:

the flue gas detection system comprises an insulation box, wherein a gas tank and a heating plate for heating the gas tank are arranged in the insulation box, the gas tank is in a bottle cylinder shape, gas to be detected is communicated into the gas tank from two ends of the gas tank through an air inlet pipe, and the middle part of the gas tank is connected with an exhaust pipe for guiding and discharging the gas to be detected; one end of the air pool is provided with a flange and is connected with the wall of the heat insulation box by a heat insulation pad.

By adopting the technical scheme, the air tank is arranged in the insulation box and heated, and the air distribution mode of air inlet at two ends and air exhaust in the middle of the air tank is adopted, so that the detected air is in a proper detected state, and the detection efficiency and the detection precision are improved. In addition, the gas tank is very convenient to install and maintain, the pipeline layout is very reasonable, the pipeline length is saved, and the air pipe tightness is good.

Drawings

FIG. 1 is a schematic elevational view of the present invention;

fig. 2 is a schematic perspective view of the present invention.

Detailed Description

Referring to fig. 1 and 2, the flue gas detection system comprises an insulation box 10, wherein a gas tank 20 and a heating plate 30 for heating the gas tank 20 are arranged in the insulation box 10, the gas tank 20 is in a bottle shape, gas to be detected is communicated into the gas tank 20 from two ends of the gas tank 20 by an air inlet pipe 40, and the middle part of the gas tank 20 is connected with an air outlet pipe 50 for guiding and discharging the gas to be detected; one end of the air tank 20 is provided with a flange 21 and a heat insulation pad 22 is arranged on the wall 11 of the heat insulation box 10.

Incubator 10 may be constructed using a conventional sandwich structure with an intermediate layer of insulation. The gas to be measured is connected with the air inlet pipe 40 from two ends of the gas tank 20 and enters the gas tank 20, stable and uniform gas state can be provided under the heating environment provided by the heating plate 30, detection by a measuring device is facilitated, and the measuring device can be a light measuring instrument with high detection precision. The heat insulation pad 22 is also arranged between the air tank 20 and the tank wall 11, so that heat in the heat preservation tank 10 is not lost, the temperature stability of the tank room in the air tank 20 is ensured, and the heat transfer to the optical measurement equipment is avoided.

The air inlet pipe 40 is connected to the upper parts of the two ends of the air tank 20, the middle lower part of the air tank 20 is connected with the air outlet pipe 50, and the two ends of the air tank 20 are provided with support plates 23 which are fixed on the air tank bottom plate 24 through bolts 25. This fixed air reservoir 20 facilitates the arrangement of the piping and heating elements.

The heating plate 30 is arranged on the air pool bottom plate 24 below the air pool 20 and between the two support plates 23, the radiating fins 31 are arranged on the upper plate surface of the heating plate 30, the heating plate 30 is also provided with the hot air pipe 71, the air outlet end of the hot air pipe 71 is connected with the working gas inlet end of the jet pump 70, the air inlet end of the hot air pipe 71 is communicated with an air source outside the heat preservation box 10, the air suction end of the jet pump 70 is connected to the exhaust pipe 50 through the air suction pipe 72, and the air discharge end of the jet pump 70 is led out of the heat preservation box 10 through the pipeline 73. The connection of the jet pump 70 is equivalent to setting a vacuum environment on the pipeline of the exhaust pipe 50 of the air pool 20, so that the air pool 20 and the reserved smoke in the pipeline are conveniently exhausted, the damage and corrosion of the smoke to equipment are avoided, and meanwhile, the environment is emptied for the next detection, so that the subsequent detection result and the subsequent detection precision are not influenced. In addition, the heating requirement of the air tank 20 is met by using one heating plate 30, and the working air flow of the jet pump 70 is additionally provided, so that the effect is remarkable.

The support plate 23 is L-shaped, the upper end of the vertical plate is connected with the air pool 20, the horizontally arranged plate body 231 is provided with a through hole for the bolt to pass through, and nuts 251 screwed on the bolts 25 are arranged at the upper plate surface and the lower plate surface of the horizontally arranged plate body 231. By adopting the scheme, the support plate 23 can be fixed, and the height of the air tank 20 can be conveniently adjusted, so that the air tank 20 corresponds to the installation position on the tank wall 11, and the air tightness of the corresponding connection part is ensured.

The heating plate 30 is provided with a strip-shaped hole or a U-shaped notch at the edge, and the length or opening direction of the strip-shaped hole or the U-shaped notch at the edge is consistent with the length direction of the air tank 20. In this embodiment, the strip-shaped holes may be formed in the air pool bottom plate 24, as shown in fig. 2, so that the position of the heating plate 30 may be adjusted conveniently, and the heating plate 30 may be positioned at an optimal position to heat the air pool 20.

The air inlet pipe 40 at two ends of the air tank 20 is connected with the air outlet end of the fine filtering tank 2, the air inlet end of the coarse filtering tank 1 is connected with the air source of the air to be detected, and the air outlet end of the coarse filtering tank 1 is connected with the air inlet end of the fine filtering tank 2. Dust may be mixed in the detected gas, and the dust may cause pipeline blockage, so that system operation faults are caused, and non-detection smoke such as dust, particulate matters and the like can be filtered through the cooperation of the coarse filtration tank 1 and the fine filtration tank 2, so that normal operation and detection precision of the system are ensured.

The first temperature sensor 3 and the second temperature sensor 4 are arranged in the incubator 10, the first temperature sensor 3 is arranged close to the air pool 20, and the second temperature sensor 4 is arranged close to the hot air pipe 71. The first temperature sensor 3 and the second temperature sensor 4 can timely collect the working state of the heating plate 30 so as to obtain the temperature of the air pool 20 and the working air flow temperature of the jet pump 70, and ensure the normal operation of the system.

The cooling ring 12 is arranged at the joint of the air pool 20 and the wall 11 of the insulation box 10, the measuring instrument 60 is connected to the cooling ring 12, and the sleeve 61 covered outside the measuring instrument 60 is connected to the cooling ring 12. The signal acquisition end of the measuring instrument 60 is connected to one end of the air tank 20, so that the connection is ensured, the influence of high temperature on the measuring instrument 60 is avoided, the cooling ring 12 can be used for water cooling or air cooling, and the signal acquisition end can be selected according to specific conditions, so long as the normal operation of the measuring instrument 60 can be ensured.

Claims

1. The utility model provides a flue gas detecting system, includes insulation can (10), arranges hot plate (30) of gas pond (20) and heating gas pond (20) in insulation can (10), its characterized in that: the gas tank (20) is in a bottle shape, the gas to be detected is communicated into the gas tank (20) from two ends of the gas tank (20) through gas inlet pipes (40), and the middle part of the gas tank (20) is connected with an exhaust pipe (50) to lead the gas to be detected to be discharged; one end of the air pool (20) is provided with a flange (21) and a heat insulation pad (22) is arranged on the wall (11) of the heat insulation box (10);

a heating plate (30) is arranged on a gas pool bottom plate (24) below the gas pool (20) and between two support plates (23), a radiating fin (31) is arranged on the upper plate surface of the heating plate (30), a hot air pipe (71) is further arranged on the heating plate (30), the air outlet end of the hot air pipe (71) is connected with the working gas inlet end of a jet pump (70), the air inlet end of the hot air pipe (71) is communicated with a gas source outside the heat insulation box (10), the air inlet end of the jet pump (70) is connected onto an exhaust pipe (50) through an air suction pipe (72), and the air outlet end of the jet pump (70) is led out of the heat insulation box (10) through a pipeline (73);

the air inlet pipe (40) is connected to the upper parts of two ends of the air tank (20), the lower part of the middle of the air tank (20) is connected with the exhaust pipe (50), and two ends of the air tank (20) are provided with support plates (23) which are fixed on the air tank bottom plate (24) through bolts (25).

2. The smoke detection system of claim 1, wherein: the support plate (23) is L-shaped, the upper end of the vertical plate is connected with the air pool (20), the horizontally arranged plate body (231) is provided with a through hole for the bolts to pass through, and nuts (251) which are screwed on the bolts (25) are arranged on the upper plate surface and the lower plate surface of the horizontally arranged plate body (231).

3. The smoke detection system of claim 1, wherein: the heating plate (30) is provided with a strip-shaped hole or a U-shaped notch at the edge, and the hole length or the opening direction of the U-shaped notch at the strip-shaped hole or the edge is consistent with the length direction of the air tank (20).

4. The smoke detection system of claim 1, wherein: the air inlet pipe (40) at two ends of the air tank (20) is connected with the air outlet end of the fine filtering tank (2), the air inlet end of the coarse filtering tank (1) is connected with the air source of the air to be detected, and the air outlet end of the coarse filtering tank (1) is connected with the air inlet end of the fine filtering tank (2).

5. The smoke detection system of claim 1, wherein: the heat preservation box (10) is internally provided with a first temperature sensor (3) and a second temperature sensor (4), the first temperature sensor (3) is arranged close to the air pool (20), and the second temperature sensor (4) is arranged close to the hot air pipe (71).

6. The smoke detection system of claim 1, wherein: a cooling ring (12) is arranged at the joint of the air pool (20) and the wall (11) of the heat preservation box (10), a measuring instrument (60) is connected to the cooling ring (12), and a sleeve (61) covered outside the measuring instrument (60) is connected to the cooling ring (12).