Continuous sampling device for flue gas

Abstract

The utility model relates to a continuous flue gas sampling device, which belongs to the technical field of flue gas sampling and comprises a flue gas sampling tube, a negative pressure component and a continuous sampling component, the negative pressure component is mounted on the upper side of the flue gas sampling tube, and the continuous sampling component comprises a sampling turntable and a rotating motor. A negative pressure pipe and a negative pressure chamber are arranged on one side of the flue gas sampling pipe, the negative pressure assembly provides negative pressure for the negative pressure chamber and drives flue gas to enter the negative pressure chamber from the flue gas sampling pipe, a first flue gas channel opening is formed in the side face of the negative pressure chamber, sampling chambers are evenly arranged in the rotating disc at equal intervals, and a second flue gas channel opening is formed in the side face of the negative pressure chamber. Second flue gas channel openings are formed in the surfaces of the sampling chambers, the rotating motor drives the rotating disc to rotate, and flue gas enters the sampling chambers from the first flue gas channel through the second flue gas channels under the action of negative pressure, so that continuous sampling of the flue gas is realized.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas sampling technical field, concretely is a flue gas continuous sampling device. BACKGROUND

[0002] Flue gas sampling is an important technical means in the fields of environmental monitoring, industrial process control and energy utilization, and after flue gas sampling, flue gas detection device is used to obtain flue gas composition, concentration, temperature, flow rate and other parameters, which provides data support for pollution control, combustion optimization and energy management, and the traditional flue gas sampling device cannot realize continuous sampling, and needs to extend the sampling pipe into the flue gas passage, which greatly reduces the efficiency and effect of flue gas sampling. UTILITARY MODEL

[0003] The utility model aims at overcoming the prior art's insufficient, provide a flue gas continuous sampling device.

[0004] In order to solve the above technical problem, the utility model adopts the following technical scheme:

[0005] A kind of flue gas continuous sampling device, comprising:

[0006] Flue gas sampling pipe, flue gas sampling pipe both ends are provided with flue inlet pipe and flue outlet pipe, flue gas enters the flue gas sampling pipe from the flue inlet pipe and is discharged from the flue outlet pipe again;

[0007] Continuous sampling assembly, the flue gas sampling pipe one side is provided with sampling pipe and negative pressure chamber, the sampling pipe one end is connected with the flue gas sampling pipe, the other end is connected with the negative pressure chamber, the negative pressure chamber side is equipped with first flue gas passage, the continuous sampling assembly includes sampling turntable and sampling chamber, the sampling chamber is evenly distributed at the turntable surface at equal intervals, the negative pressure chamber and the outer surface of turntable are circular, the turntable is arranged outside the negative pressure chamber, the turntable drives the sampling chamber to rotate around the negative pressure chamber, the surface of each group sampling chamber is equipped with second flue gas passage, when the first flue gas passage is communicated with the second flue gas passage, flue gas passes through each second flue gas passage into corresponding sampling chamber from first flue gas passage.

[0008] Preferably, the negative pressure assembly is arranged on the upper side of the negative pressure chamber, the negative pressure assembly comprises a negative pressure machine and a negative pressure pipe, the negative pressure pipe is connected with the negative pressure chamber, the negative pressure machine provides negative pressure for the negative pressure chamber through the negative pressure pipe, the negative pressure of the negative pressure chamber sucks the flue gas in the flue gas sampling pipe into the negative pressure chamber, and the flue gas enters each sampling chamber through the first flue gas passage and each second flue gas passage.

[0009] Preferably, one side of the flue gas sampling pipe is provided with a rotary motor, a through hole is arranged at the center position of the rotary motor, the through hole is sleeved in the sampling pipe, a circular sliding groove and two groups of sliding rods are arranged on the surface of the rotary motor, the rotary motor drives the two groups of sliding rods to slide on the surface of the circular sliding groove, two groups of sleeves are arranged at the bottom of the rotating disc, and the two groups of sleeves are respectively sleeved on the sliding rods, the rotary motor drives the sleeves and the rotating disc to rotate, so that the sampling chambers at different positions are controlled to rotate to sample from the negative pressure chamber, and continuous sampling of flue gas is realized.

[0010] Preferably, a sealing ring is arranged between each group of the second flue gas channels, and the sealing ring is made of elastic material, so that flue gas is prevented from leaking from the gap between the rotating disc and the negative pressure chamber.

[0011] Preferably, an exhaust pipe is arranged outside each group of the sampling chambers, and the exhaust pipe is connected with the flue gas detection device outside, so that the sampled flue gas at different time periods is analyzed and processed.

[0012] Beneficial effects: in the flue gas continuous sampling device, the negative pressure machine provides negative pressure for the negative pressure chamber through the negative pressure pipe, the negative pressure of the negative pressure chamber sucks the flue gas in the flue gas sampling pipe into the negative pressure chamber, the rotary motor drives the rotating disc to rotate, so that the rotating disc drives the sampling chambers to rotate around the negative pressure chamber, the flue gas enters the corresponding sampling chambers from the first flue gas channel through each second flue gas channel, continuous sampling of flue gas is realized, and the exhaust pipe is connected with the flue gas detection device outside, so that the sampled flue gas at different time periods is analyzed and processed. BRIEF DESCRIPTION OF DRAWINGS

[0013] The drawings are used to provide a further understanding of the utility model, and constitute a part of the specification, are used to explain the utility model together with the embodiments of the utility model, and do not constitute the limitation on the utility model.

[0014] In the drawings:

[0015] Figure 1 It is the schematic view of the whole flue gas continuous sampling device of the utility model;

[0016] Figure 2 It is the schematic view of the negative pressure chamber and the sampling pipe of the utility model;

[0017] Figure 3 It is the schematic view of the rotary motor of the utility model;

[0018] Figure 4 It is the schematic view of the rotating disc of the utility model.

[0019] The following are the labels in the diagram: 1. Inlet pipe; 2. Outlet pipe; 3. Rotary motor; 4. Sampling chamber; 5. Exhaust pipe; 6. Turntable; 7. Negative pressure pipe; 8. Negative pressure machine; 9. Flue gas sampling pipe; 10. Sampling tube; 11. Negative pressure chamber; 12. First flue gas passage; 13. Through hole; 14. Slide groove; 15. Slide rod; 16. Sleeve; 17. Sealing ring; 18. Second flue gas passage. Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments of the present utility model. Obviously, the described embodiments are only some embodiments of the present utility model, not all embodiments. The following text is only used to describe a continuous flue gas sampling device of the present utility model and does not strictly limit the protection scope of the specific claims of the present utility model.

[0021] Example: Figures 1-4 As shown, a continuous flue gas sampling device includes:

[0022] A flue gas sampling pipe 9 is provided with an inlet pipe 1 and an outlet pipe 2 at its two ends. Flue gas enters the flue gas sampling pipe 9 from the inlet pipe 1 and is discharged from the outlet pipe 2.

[0023] A continuous sampling assembly includes a sampling tube 10 and a negative pressure chamber 11 on one side of the flue gas sampling tube 9. One end of the sampling tube 10 is connected to the flue gas sampling tube 9, and the other end is connected to the negative pressure chamber 11. The negative pressure chamber 11 has a first flue gas channel 12 opening on its side. The continuous sampling assembly includes a sampling turntable 6 and sampling chambers 4. The sampling chambers 4 are evenly distributed on the surface of the turntable 6 at equal intervals. The outer surfaces of the negative pressure chamber 11 and the turntable 6 are circular. The turntable 6 is located outside the negative pressure chamber 11. The turntable 6 drives the sampling chambers 4 to rotate around the negative pressure chamber 11. Each group of sampling chambers 4 has a second flue gas channel 18 opening on its surface. When the first flue gas channel 12 communicates with the corresponding second flue gas channel 18, the flue gas enters the corresponding sampling chamber 4 from the first flue gas channel 12 through each second flue gas channel 18.

[0024] In this embodiment, a negative pressure assembly is provided on the upper side of the negative pressure chamber 11. The negative pressure assembly includes a negative pressure generator 8 and a negative pressure pipe 7. The negative pressure pipe 7 is connected to the negative pressure chamber 11. The negative pressure generator 8 provides negative pressure to the negative pressure chamber 11 through the negative pressure pipe 7. The negative pressure in the negative pressure chamber 11 draws the flue gas in the flue gas sampling pipe 9 into the negative pressure chamber 11, and then enters each sampling chamber 4 through the first flue gas channel 12 and each of the second flue gas channels 18.

[0025] In the embodiment, the flue gas sampling pipe 9 is provided with a rotary motor 3 on one side, a through hole 13 is arranged at the center of the rotary motor 3, the through hole 13 is sleeved in the sampling pipe 10, a circular sliding groove 14 and two groups of sliding rods 15 are arranged on the surface of the rotary motor 3, the rotary motor 3 drives the two groups of sliding rods 15 to slide on the surface of the circular sliding groove 14, the bottom of the rotary disc 6 is provided with two groups of sleeves 16, the two groups of sleeves 16 are respectively sleeved on the sliding rods 15, the rotary motor 3 drives the sleeves 16 and the rotary disc 6 to rotate through the rotation of the sliding rods 15, so that the sampling chambers 4 at different positions are controlled to rotate to sample from the negative pressure chamber 11, and continuous sampling of flue gas is realized.

[0026] In the embodiment, a sealing ring 17 is arranged between the second flue gas passages 18 of each group, the sealing ring 17 is made of elastic material, so that flue gas is prevented from leaking from the gap between the rotary disc 6 and the negative pressure chamber 11.

[0027] In the embodiment, a flue gas exhaust pipe 5 is arranged outside each group of sampling chambers 4, the flue gas exhaust pipe 5 is connected with the flue gas detection device outside, so that the sampled flue gas at different time periods is analyzed and processed.

[0028] In use, the negative pressure machine 8 provides negative pressure for the negative pressure chamber 11 through the negative pressure pipe 7, the negative pressure of the negative pressure chamber 11 sucks the flue gas in the flue gas sampling pipe 9 into the negative pressure chamber 11, the rotary motor 3 drives the rotary disc 6 to rotate, so that the rotary disc 6 drives the sampling chambers 4 to rotate around the negative pressure chamber 11, according to the sampling time requirement, the rotary speed of the rotary disc 6 is controlled, that is, the sampling speed of the sampling chambers 4 is controlled, the flue gas passes through each second flue gas passage 18 from the first flue gas passage 12 into the corresponding sampling chamber 4, continuous sampling of flue gas is realized, and the flue gas exhaust pipe 5 is connected with the flue gas detection device outside, so that the sampled flue gas at different time periods is analyzed and processed.

[0029] The embodiment of the utility model is described in detail above combined with the drawings, but the utility model is not limited to the above-mentioned embodiment, for ordinary skilled person in the art, after knowing the content recorded in the utility model, under the premise of not departing from the principle of the utility model, still can make several equivalent transformation and replacement, these equivalent transformation and replacement also should be regarded as belonging to the protection scope of the utility model.

Claims

1. A continuous flue gas sampling device, characterized by: The utility model relates to a continuous sampling device for flue gas, which comprises: a flue gas sampling pipe with an inlet pipe and an outlet pipe at two ends, through which flue gas enters and discharges; a continuous sampling assembly provided with a sampling pipe and a negative pressure chamber on one side of the flue gas sampling pipe, wherein one end of the sampling pipe is connected to the flue gas sampling pipe, and the other end is connected to the negative pressure chamber, the negative pressure chamber is provided with a first flue gas passage on the side, the continuous sampling assembly comprises a sampling turntable and sampling chambers, the sampling chambers are evenly distributed on the surface of the turntable at equal intervals, the negative pressure chamber and the outer surface of the turntable are circular, the turntable is arranged outside the negative pressure chamber, the turntable drives the sampling chambers to rotate around the negative pressure chamber, the surface of each group of sampling chambers is provided with a second flue gas passage, when the first flue gas passage communicates with the second flue gas passage, flue gas enters the corresponding sampling chamber through each second flue gas passage from the first flue gas passage.

2. A continuous flue gas sampling device according to claim 1, characterized in that: The negative pressure assembly is arranged on the upper side of the negative pressure chamber, the negative pressure assembly comprises a negative pressure machine and a negative pressure pipe, the negative pressure pipe is connected to the negative pressure chamber, and the negative pressure machine provides negative pressure for the negative pressure chamber through the negative pressure pipe.

3. A continuous flue gas sampling device according to claim 1, characterized in that: A rotary motor is arranged on one side of the flue gas sampling pipe, a through hole is arranged at the center of the rotary motor, and the through hole is sleeved in the sampling pipe.

4. A continuous flue gas sampling device according to claim 3, characterized in that: The surface of the rotary motor is provided with a circular sliding groove and two groups of sliding rods, the rotary motor drives the two groups of sliding rods to slide on the surface of the circular sliding groove, the bottom of the turntable is provided with two groups of sleeves, and the two groups of sleeves are sleeved on the sliding rods, respectively, the rotation of the sliding rods drives the sleeves and the turntable to rotate.

5. A continuous flue gas sampling device according to claim 1, characterized in that: A sealing ring is arranged between each group of second flue gas passages to prevent flue gas leakage, and the sealing ring is made of elastic material.

6. A continuous flue gas sampling device according to claim 1, characterized in that: An exhaust pipe is arranged outside each group of sampling chambers.

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