Flue gas sampling connecting device

Abstract

The utility model relates to the technical field of flue gas detection equipment, in particular to a flue gas sampling connecting device which comprises a flue gas sampling connecting pipe and a smoke discharging barrel, one end of the flue gas sampling connecting pipe is communicated with the smoke discharging barrel, and the other end of the flue gas sampling connecting pipe is connected with a flue gas sampling connecting pipe cap in a buckled mode. A sealing sleeve assembly is arranged on the smoke sampling connecting pipe cap in a penetrating mode, a smoke sampler connecting pipe is arranged in the sealing sleeve assembly in a sliding penetrating mode, and a sampler probe is fixedly connected to the end, close to the smoke discharging barrel, of the smoke sampler connecting pipe. According to the flue gas collecting and connecting device, due to the arrangement of the flue gas sampling connecting pipe cap and the sealing sleeve assembly, the flue gas sampling connecting pipe and the flue gas sampler connecting pipe are connected in a size matching mode, during sampling, only a sampling gate valve needs to be opened, a sampler probe needs to be inserted into a designated position, sampling convenience is improved, and practicability is high.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas detection equipment technical field especially, relates to a flue gas collection connecting device. BACKGROUND

[0002] Flue gas detection is a detection mode applied in environmental detection, and whether flue gas pollutes the environment is judged through the detection of various solid particles in flue gas of a smoke exhaust pipe. Flue gas detection generally needs to collect flue gas through a flue gas sampler first and then detect through special detection equipment. When sampling flue gas, the probe needs to be inserted into the sampling interface of the sidewall of the smoke exhaust pipe. Flue gas enters the sampling and detection equipment through the probe. Generally, the structure of the sampling interface is designed according to the installation size of the sampler to ensure that the sampler can be installed normally. The sampling interface reserved on the smoke exhaust pipe of a certain refinery does not match the installation size of the existing sampler.

[0003] The existing sampling interface reserved on the smoke exhaust pipe does not have a standard installation size, and the size often does not match. When sampling flue gas, the sampler probe is directly inserted into the flue gas sampling port. The structure for installing and fixing the sampler is unreasonable, there is no sealing measure, and part of the high-temperature flue gas will be discharged from the flue gas sampling port, which leads to sampling difficulty and cannot guarantee the personal safety of the staff. In order to meet the safety and detection effect of the flue gas sampling process, an installation mechanism for fixedly connecting the sampler and the sampling interface needs to be designed. Therefore, a sampler installation mechanism is designed according to the specification size of the existing sampler and the structure of the flue gas sampling port.

[0004] Chinese patent CN218297729U discloses a flue gas VOCs collection device, which includes a collection assembly, the collection assembly includes a flue, an air guide pipe, a gas collection tank, a gas return pipe and a collection connecting pipe; a sealing mechanism, the sealing mechanism includes a sampling pipe, a positioning plate, a shaft, a sealing plug, a spring, a pressing plate and a piston plate. The utility model discloses that by rotating the sampling pipe and inserting it into the collection connecting pipe, the pressing plate is extruded to drive the sealing plug to move. The moving sealing plug slides out of the collection connecting pipe and drives the spring to stretch. Therefore, only when one end of the sampling pipe is completely inserted into the inside of the collection connecting pipe, the gas in the flue can be normally discharged, avoiding the leakage of the gas and the pollution of the working environment. When one end of the sampling pipe is taken out of the collection connecting pipe, the sealing plug is sealed to one end of the collection connecting pipe by the stretched spring, so that manual sealing treatment of the staff is not needed, and the collection efficiency of the flue VOCs is improved.

[0005] The flue gas VOCs collection device provided by the above patent is of an integrated structure, and the flue gas outlet and inlet are directly connected to the flue, but the size of the sampling pipe and the air extraction equipment still does not match during sampling. UTILITY MODEL CONTENTS

[0006] In view of the defects of the prior art, the utility model discloses a flue gas sampling connecting device for solving the problems of the mismatching of the sampling interface reserved on the smoke exhaust pipe and the installation size of the existing sampler, the lack of sealing measures, sampling difficulty and high risk.

[0007] In order to realize the above-mentioned purpose, the utility model provides the following technical scheme:

[0008] A flue gas sampling connecting device, including flue gas sampling connector pipe and smoke exhaust pipe, one end of flue gas sampling connector pipe communicates with smoke exhaust pipe, the other end of flue gas sampling connector pipe is buckled and has flue gas sampling connector pipe cap, and the sealing sleeve assembly is arranged on the flue gas sampling connector pipe cap.

[0009] The sealing sleeve assembly includes sampler fixed sleeve, is inserted on the flue gas sampling connector pipe cap, is filled with sealing filler in the sampler fixed sleeve, and the one end of sampler fixed sleeve is fixed with sealing filler baffle.

[0010] Preferably, the O-shaped pipe clamp is fixed on the flue gas sampling connector pipe, and the O-shaped pipe clamp is connected with the flue gas sampling connector pipe cap through a bolt.

[0011] Preferably, the flue gas sampling connector pipe is provided with a sampling gate valve near the smoke exhaust pipe end.

[0012] Preferably, the sealing filler pressing plate is provided with a boss, and the boss is buckled in the sampler fixed sleeve.

[0013] Preferably, the flue gas sampling connector pipe cap and the flue gas sampling connector pipe are provided with an asbestos gasket at the buckling position.

[0014] Preferably, the asbestos gasket is 5-10mm thick.

[0015] Preferably, the O-shaped pipe clamp includes two U-shaped pipe clamps, and the two U-shaped pipe clamps are connected in the arc direction.

[0016] Compared with the prior art, the utility model has the following beneficial effects:

[0017] (1)The smoke collection connecting device of the utility model, through the smoke collection connecting pipe cap connection smoke collection connecting pipe, and set up asbestos gasket at the joint, ensure the air tightness of the smoke collection connecting pipe cap connection smoke collection connecting pipe connection;Through the setting of the smoke sampling pipe cap and the sealing sleeve assembly, the smoke sampling pipe and the smoke sampler pipe are connected in size, and during sampling, only the sampling gate valve needs to be opened, and the sampler probe is inserted into the specified position, which improves the convenience of sampling and has high practicability.

[0018] (2)The smoke collection connecting device of the utility model realizes the size matching connection between the smoke sampling pipe and the smoke sampler pipe through the setting of the smoke sampling pipe cap and the sealing sleeve assembly, and only the sampling gate valve needs to be opened during sampling, and the sampler probe is inserted into the specified position, which improves the convenience of sampling and has high practicability. BRIEF DESCRIPTION OF DRAWINGS

[0019] Figure 1 It is a whole structure schematic view of a smoke sampling connecting device provided by the utility model;

[0020] In the figure: 1, smoke sampler pipe;2, sealing filler pressing plate;3, sampler fixed sleeve;4, smoke sampling pipe cap;5, asbestos gasket;6, sealing filler;7, O-shaped pipe clamp;8, sealing filler baffle;9, smoke sampling pipe;10, sampling gate valve;11, smoke exhaust cylinder;12, sampler probe;13, boss. DETAILED DESCRIPTION

[0021] The technical scheme in the embodiments of the utility model will be clearly and completely described below in combination with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, rather than all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the protection scope of the utility model.

[0022] EMBODIMENT

[0023] A smoke sampling connecting device, comprising a smoke sampling pipe 9 and a smoke exhaust cylinder 11, one end of the smoke sampling pipe 9 is communicated with the smoke exhaust cylinder 11, the other end of the smoke sampling pipe 9 is buckled with a smoke sampling pipe cap 4, a sealing sleeve assembly is arranged on the smoke sampling pipe cap 4, a smoke sampler pipe 1 is axially slidably arranged in the sealing sleeve assembly, and a sampler probe 12 is fixedly connected to one end of the smoke sampler pipe 1 close to the smoke exhaust cylinder 11.

[0024] The sealing sleeve assembly comprises a sampler fixing sleeve 3 which is inserted on a flue gas sampling connector pipe cap 4, the sampler fixing sleeve 3 is filled with sealing filler 6, one end of the sampler fixing sleeve 3 is fixed with a sealing filler baffle 8, and the other end of the sampler fixing sleeve 3 is fixed with a sealing filler pressing plate 2.

[0025] In the embodiment, an O-shaped pipe clamp 7 is fixed on the flue gas sampling connector pipe 9, and the O-shaped pipe clamp 7 is connected with the flue gas sampling connector pipe cap 4 through bolts.

[0026] In the embodiment, a sampling gate valve 10 is arranged on the flue gas sampling connector pipe 9 near the end of the smoke exhaust duct 11.

[0027] In the embodiment, the sealing filler pressing plate 2 is provided with a boss 13 which is buckled in the sampler fixing sleeve 3.

[0028] In the embodiment, the flue gas sampling connector pipe cap 4 and the flue gas sampling connector pipe 9 are provided with an asbestos gasket 5 at the buckling position.

[0029] In the embodiment, the asbestos gasket 5 is 5-10 mm thick.

[0030] In the embodiment, the O-shaped pipe clamp 7 comprises two U-shaped pipe clamps which are connected in abutment along the arc direction. The two U-shaped pipe clamps are buckled on the flue gas sampling pipe 9 and are fastened by bolts, so that the O-shaped pipe clamp 7 is not easy to loosen, and the flue gas sampling pipe 9 is connected with the flue gas sampling connector pipe cap 4, so that the connection between the flue gas sampling pipe 9 and the flue gas sampling connector pipe cap 4 is more compact and stable.

[0031] One end of the flue gas sampling connector pipe 9 is communicated with the smoke exhaust duct 11, and the flue gas sampling connector pipe 9 is provided with a sampling gate valve 10, when sampling is not performed, the sampling gate valve 10 is closed, so that the flue gas of the smoke exhaust duct 11 cannot be leaked, when sampling is performed, the sampling gate valve 10 is opened, the flue gas sampling connector pipe cap 4 is connected with the flue gas sampling connector pipe 9, and the flue gas sampling connector pipe cap 4 is provided with an asbestos gasket 5 inside, so that the air tightness of the flue gas sampling connector pipe cap 4 and the flue gas sampling connector pipe 9 is ensured, the flue gas sampling connector pipe cap 4 is provided with a sealing sleeve assembly, the sampler fixing sleeve 3 is filled with sealing filler 6, it is to be noted that the sealing filler is selected from aluminum silicate fiber cotton or glass fiber cotton, the sampler fixing sleeve 3 is fixedly installed with a sealing filler baffle 8 on one side and a sealing filler pressing plate 2 on the other side, so as to compress and compact the sealing filler 6, when the flue gas sampling connector pipe 1 moves left and right, the sealing sleeve assembly can always maintain good air tightness, the sampler probe 12 is inserted into the smoke exhaust duct 11 to collect flue gas, so that the function of collecting flue gas with good air tightness is realized.

[0032] The working principle of the flue gas sampling connecting device is as follows:

[0033] Install the flue gas sampling connecting device, open the sampling gate valve 10, slide the flue gas sampler connecting pipe 1 into the flue gas sampling connecting pipe 9 until the sampler probe 12 at the end of the flue gas sampler connecting pipe 1 stops in the flue gas duct 11, start the flue gas sampling equipment, and sample; after sampling is completed, slide the flue gas sampler connecting pipe 1 out of the flue gas sampling connecting pipe 9 until the sampler probe 12 moves out of the sampling gate valve 10 to the side of the sealing sleeve assembly, close the sampling gate valve 10, and sampling can be completed.

[0034] The above is only the preferred specific implementation of the present application, but the protection scope of the present application is not limited to this, any person skilled in the art can make equivalent replacement or change according to the technical scheme and the inventive concept of the present application within the technical range disclosed by the present application, which should be covered in the protection scope of the present application.

Claims

1. A flue gas sampling connection device comprising a flue gas sampling connection pipe (9) and a flue gas stack (11), characterized in that: One end of the flue gas sampling connector (9) is communicated with the flue duct (11), the other end of the flue gas sampling connector (9) is buckled with the flue gas sampling connector cap (4), the flue gas sampling connector (9) is provided with a sampling gate valve (10) near the flue duct (11), the flue gas sampling connector cap (4) is provided with a sealing sleeve assembly, the sealing sleeve assembly is axially slidably provided with a flue gas sampler connector (1), the flue gas sampler connector (1) is fixedly connected with a sampler probe (12) near the flue duct (11); The sealing sleeve assembly comprises a sampler fixed sleeve (3), the sampler fixed sleeve (3) is inserted on the flue gas sampling connector cap (4), the sampler fixed sleeve (3) is filled with a sealing filler (6), one end of the sampler fixed sleeve (3) is fixedly provided with a sealing filler baffle (8), the other end of the sampler fixed sleeve (3) is fixedly provided with a sealing filler pressing plate (2).

2. A flue gas sampling connection device according to claim 1, characterised in that: The flue gas sampling connector (9) is fixedly provided with an O-shaped pipe clamp (7), the O-shaped pipe clamp (7) is connected with the flue gas sampling connector cap (4) through bolts.

3. A flue gas sampling connection device according to claim 1, characterised in that: The sealing filler pressing plate (2) is provided with a boss (13), the boss (13) is buckled in the sampler fixed sleeve (3).

4. A flue gas sampling connection device according to claim 1, characterised in that: The flue gas sampling connector cap (4) and the flue gas sampling connector (9) are provided with an asbestos gasket (5) at the buckling position.

5. A flue gas sampling connection device according to claim 4, characterised in that: The asbestos gasket (5) is 5-10mm thick.

6. A flue gas sampling connection device according to claim 2, characterised in that: The O-shaped pipe clamp (7) comprises two U-shaped pipe clamps, the two U-shaped pipe clamps are connected in butt joint along the curvature direction.

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