CN203259380U

CN203259380U - Smoke sampling device capable of preventing pipeline blockage

Info

Publication number: CN203259380U
Application number: CN 201320274998
Authority: CN
Inventors: 黄连云; 吴有飞; 左昌余
Original assignee: TONGLING LANGUANG ELECTRONICS TECHNOLOGY Co Ltd
Current assignee: TONGLING LANGUANG ELECTRONICS TECHNOLOGY Co Ltd
Priority date: 2013-05-20
Filing date: 2013-05-20
Publication date: 2013-10-30
Anticipated expiration: 2023-05-20

Abstract

The utility model discloses a smoke sampling device capable of preventing pipeline blockage. The smoke sampling device comprises a smoke discharge channel (1), a smoke sampling pipe (2) and a smoke sampler (4) communicated with the smoke sampling pipe (2), wherein the smoke discharge channel and the smoke sampler are connected with each other through a flange pipe (3), an anti-blocking casing pipe (5) is arranged between the smoke sampling pipe and the flange pipe, one end of the anti-blocking casing pipe extends into the smoke discharge channel, the length of the anti-blocking casing pipe extending into the smoke discharge channel is greater than that of the smoke sampling pipe extending into the smoke discharge channel, and the other end of the anti-blocking casing pipe is fixedly connected with the smoke sampler. The smoke sampling device has the advantages that the anti-blocking casing pipe (5) is arranged between the smoke sampling pipe and the flange pipe, and the length of the anti-blocking casing pipe extending into the smoke discharge channel is greater than that of the smoke sampling pipe extending into the smoke discharge channel, so that the smoke sampling pipe is arranged inside the anti-blocking casing pipe so as to be protected; the anti-blocking casing pipe is made of an anti-corrosive material, so that the service life of the anti-blocking casing pipe is prolonged.

Description

Prevent the flue gas sampling device of line clogging

Technical field

The utility model relates to on-line monitoring system of flue gas discharge, relates in particular to the flue gas sampling device that prevents line clogging.

Background technology

Fast development along with economy, China is because of coal fire discharged sulphuric dioxide (SO2) and sharply increase of oxides of nitrogen (NOx), cause serious environmental pollution, therefore country has formulated corresponding laws and regulations, to enterprise's solar obligation on-line monitoring system of flue gas discharge of some fume emissions, and " Chou Qu – – cryochem " on-line monitoring system of flue gas discharge is the main flow measuring method that smoke on-line monitoring system adopts on the market.On-line monitoring system of flue gas discharge (Chou Qu – – cryochem) be to a kind of exhaust gas components (SO2, NOx, flue dust) to be reached the instrument that relevant Gas Parameters is carried out on-line automatic continuous monitoring.Adopt Chou Qu – – cryochem on-line monitoring system of flue gas discharge before gas sampled is analyzed, need with the smoke sampling device fume extraction in the chimney (or flue) to be gone out to carry out pre-service, enter again analysis to measure in the analytical instrument.In the smoke sampling device sampling process, on mounting flange sleeve pipe holder chimney (or flue) wall on the chimney (or flue), make the direct insert sampling of gas sampling probe extract (as shown in Figure 1), under the pressure of chimney inside self, make easily particle large in the flue gas directly be pressed in the sampling pipe, the larger operating mode of some humidity particularly, particle condenses into mud and directly impacts the smoke sampling tube inlet, cause the smoke sampling blockage, cause instrument sampling fault, and long-term work directly impacts, and accelerated the extent of corrosion of stopple coupon, causes reduce serviceable life.

The utility model content

The technical problems to be solved in the utility model is that particle that existing on-line monitoring system of flue gas discharge in use is subjected to mix in the gas sampled easily affects and causes the smoke sampling blockage, cause instrument sampling fault, minimizing system serviceable life, provide a kind of flue gas sampling device that prevents line clogging for this reason.

The technical solution of the utility model is: the flue gas sampling device that prevents line clogging, it comprises that discharge flue, an end stretch into the gas sampling probe of discharge flue and the smoke sampling device that is connected with gas sampling probe, connect by flanged pipe between discharge flue and the smoke sampling device, be provided with anti-blocking sleeve pipe between described gas sampling probe and the flanged pipe, described anti-blocking sleeve pipe one end stretches into discharge flue, its length that stretches into discharge flue stretches into the length of discharge flue greater than gas sampling probe, and the other end of anti-blocking sleeve pipe and smoke sampling device are affixed.

Anti-blocking sleeve pipe described in the such scheme is corrosion-resistant sleeve pipe.

Anti-blocking sleeve pipe described in the such scheme is that flange is connected with the smoke sampling device.

The beneficial effects of the utility model are by an anti-blocking sleeve pipe is installed in the middle of smoke sampling device and flanged pipe, the length that this anti-blocking sleeve pipe stretches into discharge flue stretches into the length of discharge flue greater than gas sampling probe, make gas sampling probe place anti-blocking inside pipe casing, the protection gas sampling probe; Anti-blocking sleeve pipe adopts corrosion-resistant material to prolong the serviceable life of anti-blocking sleeve pipe.

Description of drawings

Fig. 1 is existing flue gas sampling device synoptic diagram;

Fig. 2 is the utility model synoptic diagram;

Among the figure, 1, discharge flue, 2, gas sampling probe, 3, flanged pipe, 4, the smoke sampling device, 5, anti-blocking sleeve pipe.

Embodiment

Below in conjunction with accompanying drawing the utility model is described further.

As shown in Figure 2, the utility model comprises that discharge flue 1, an end stretch into the gas sampling probe 2 of discharge flue and the smoke sampling device 4 that is connected with gas sampling probe, can connect by flanged pipe 3 between discharge flue and the smoke sampling device, it is characterized in that being provided with between described gas sampling probe and the flanged pipe anti-blocking sleeve pipe 5, described anti-blocking sleeve pipe one end stretches into discharge flue, its length that stretches into discharge flue stretches into the length of discharge flue greater than gas sampling probe, and the other end of anti-blocking sleeve pipe and smoke sampling device are affixed.

Discharge flue can be chimney, flue or other any pipeline that can discharge flue gas, the sidewall of discharge flue is provided with through hole, stretch into discharge flue internal extraction flue gas sample for gas sampling probe, also can be fixedly connected with by alternate manner between discharge flue and the smoke sampling device, as riveting, weld, being threaded, as long as can make discharge flue and the stable combination of smoke sampling device.

In order to reach the purpose that prevents the smoke sampling blockage, the length that anti-blocking sleeve pipe stretches into smoke discharging pipe must stretch into length into discharge flue greater than gas sampling probe, anti-blocking sleeve pipe surpasses gas sampling probe in smoke discharging pipe length is the bigger the better, can make like this possibility of particle suction gas sampling probe in the flue gas minimum, avoid simultaneously condensate water condensation in gas sampling probe, further reduced stop up phenomenon.

The material of anti-blocking sleeve pipe preferably adopts resistant material, for example 316L stainless steel, plastic tube or other can play the material of corrosion-resistant effect, anti-blocking sleeve pipe can be that flange is connected with the smoke sampling device, installation and removal are all more convenient like this, can certainly adopt being fixedly connected with of alternate manner, as welding, rivet, being threaded etc.

Claims

1. prevent the flue gas sampling device of line clogging, it comprises that discharge flue (1), an end stretch into the gas sampling probe (2) of discharge flue and the smoke sampling device (4) that is connected with gas sampling probe, connect by flanged pipe (3) between discharge flue and the smoke sampling device, it is characterized in that being provided with between described gas sampling probe and the flanged pipe anti-blocking sleeve pipe (5), described anti-blocking sleeve pipe one end stretches into discharge flue, its length that stretches into discharge flue stretches into the length of discharge flue greater than gas sampling probe, and the other end of anti-blocking sleeve pipe and smoke sampling device are affixed.

2. the flue gas sampling device that prevents line clogging as claimed in claim 1 is characterized in that described anti-blocking sleeve pipe is corrosion-resistant sleeve pipe.

3. the flue gas sampling device that prevents line clogging as claimed in claim 2 is characterized in that described anti-blocking sleeve pipe and smoke sampling device are that flange is connected.