Flue gas emission particulate matter measuring device

Abstract

The utility model discloses a flue gas emission particulate matter measuring device, which relates to the technical field of flue gas measurement, and comprises a device body, one end of the device body is fixedly connected with a flue gas inlet pipe, the other end of the device body is fixedly connected with a discharge pipe, the end position of the discharge pipe is connected with an air extracting pump, and the air extracting pump is connected with an air outlet pipe. One side of the device body is connected with an incident tube, the other side of the device body is connected with a detection tube, a laser transmitter is fixedly mounted at the end of the incident tube, and a light guide optical fiber is connected to the end of the detection tube. According to the flue gas emission particulate matter measuring device disclosed by the utility model, sampled flue gas can be uniformly mixed, the uniformity of particulate matters in the flue gas can be ensured, the phenomenon of gathering of the particulate matters in the flue gas can be avoided, the measuring accuracy of the measuring device can be improved, and the mounting distance of the measuring device can be conveniently adjusted; and the measuring device can be conveniently installed at a proper measuring position.

Description

TECHNICAL FIELD

[0001] The utility model relates to flue gas measurement technical field especially relates to a flue gas emission particulate matter measuring device. BACKGROUND

[0002] Flue gas particulate matter refers to the particulate matter in the form of solid or liquid existing in the waste gas discharged by fixed pollution sources, which is usually discharged into the atmosphere together with the waste gas and directly affects the ambient air quality. Flue gas particulate matter concentration online monitoring equipment is usually installed at the waste gas discharge port to monitor the flue gas particulate matter emission concentration in real time. The flue gas emission particulate matter measuring device is a commonly used device for measuring the concentration of flue gas particulate matter.

[0003] A flue gas particulate matter detection device and a flue gas particulate matter detection system are provided in Chinese Patent No. CN218938063U. The flue gas particulate matter detection device includes a measurement cavity body with a flue gas inlet and a flue gas outlet. The flue gas inlet and the flue gas outlet are connected to form an air passage. A laser incidence module is used to emit a Gaussian beam. A first detection channel is connected to the air passage. The first detection channel is arranged opposite to the laser incidence module. The first detection channel detects the concentration of group particulate matter in the air passage according to the scattered light of the Gaussian beam caused by the group particulate matter in the air passage and outputs a group particulate matter concentration detection signal. A second detection channel is connected to the air passage. The second detection channel is arranged at an angle to the laser incidence module. The second detection channel detects the concentration of single particulate matter in the air passage according to the scattered light of the Gaussian beam caused by the single particulate matter in the air passage and outputs a single particulate matter concentration detection signal. The utility model aims to solve the problem of inaccurate monitoring of particulate matter in different concentration ranges.

[0004] When using the flue gas emission particulate matter measuring device, particulate matter often accumulates in the flue gas environment, making it difficult to uniformly mix the sampled flue gas, resulting in poor uniformity of particulate matter in the flue gas. This condition adversely affects the measurement accuracy of the measuring device. The installation spacing of the measuring device is not easy to adjust, and thus it cannot be installed at the most suitable measurement position, affecting the accuracy and effectiveness of the entire measurement work. UTILITY MODEL CONTENTS

[0005] The main purpose of the utility model is to provide a flue gas emission particulate matter measuring device, which can effectively solve the problem of particulate matter accumulation in the flue gas environment when using the flue gas emission particulate matter measuring device, making it difficult to uniformly mix the sampled flue gas, resulting in poor uniformity of particulate matter in the flue gas. This condition adversely affects the measurement accuracy of the measuring device. The installation spacing of the measuring device is not easy to adjust, and thus it cannot be installed at the most suitable measurement position, affecting the accuracy and effectiveness of the entire measurement work.

[0006] To achieve the above object, the technical scheme adopted by the utility model is:

[0007] A flue gas emission particulate matter measuring device, including device body, one end of device body is fixedly connected with the smoke pipe, and the other end of device body is fixedly connected with the discharge pipe, the end of discharge pipe position is connected with the air pump, one side of device body is connected with the incident pipe, and the other side of device body is connected with detection pipe, the end of incident pipe position is fixedly installed with laser emitter, the end of detection pipe position is connected with light guide fiber, the inside of device body is centrally provided with detection channel, the end of smoke pipe position is connected with uniform mixing structure.

[0008] As a further scheme of the utility model, the uniform mixing structure includes a mixing cylinder, a smoke guide cover and a connecting pipe, the mixing cylinder is located at the end of the smoke pipe, the smoke guide cover is fixed at the inlet of the mixing cylinder, and the connecting pipe is fixed at the outlet of the mixing cylinder.

[0009] As a further scheme of the utility model, the inside of the mixing cylinder is fixedly installed with a fixed ring near both ends, the inner side of the fixed ring is provided with a rotating ring, the inner side of the rotating ring is provided with a connecting rod, the connecting rod and the rotating ring are connected with a fixed frame, and the outer surface of the connecting rod is provided with a plurality of mixing blades.

[0010] As a further scheme of the utility model, the outer surface of the connecting pipe is provided with a threaded head, the inner wall of the smoke pipe is provided with a threaded groove matched with the threaded head, and the connecting pipe is threadedly connected with the smoke pipe through the threaded head and the threaded groove.

[0011] As a further scheme of the utility model, the top of the device body is fixedly installed with a connecting plate, the outer side of the connecting plate is provided with a mounting plate, and the outer surface of the mounting plate is connected with a mounting pin.

[0012] As a further scheme of the utility model, the mounting plate and the connecting plate are connected with an extension rod, the outer surface of the extension rod is sleeved with a locking sleeve, and the extension rod is fixedly connected with the connecting plate through the locking sleeve.

[0013] As a further scheme of the utility model, the inside of the incident pipe and the detection pipe is provided with a convex lens, and the incident pipe and the detection pipe are located on the same axis.

[0014] The utility model has the advantages that the uniform mixing structure can uniformly mix the sampled flue gas, ensure the uniformity of particulate matter in the flue gas, avoid the aggregation of particulate matter in the flue gas, and improve the accuracy of the measuring device.

[0015] Through the connecting plate, the mounting plate and the extension rod, the installation spacing of the measuring device can be conveniently adjusted, and the measuring device can be conveniently installed at a suitable measuring position. BRIEF DESCRIPTION OF DRAWINGS

[0016] Figure 1 It is a whole structure schematic view of the flue gas emission particulate matter measuring device.

[0017] Figure 2 It is a partial analysis view of the device body of the flue gas emission particulate matter measuring device.

[0018] Figure 3 It is a schematic view of the uniform mixing structure of the flue gas emission particulate matter measuring device.

[0019] Figure 4 It is a connection schematic view of the connecting pipe and the smoke inlet pipe of the flue gas emission particulate matter measuring device.

[0020] Figure 5 It is a connection schematic view of the connecting plate, the mounting plate and the extension rod of the flue gas emission particulate matter measuring device.

[0021] In the figure: 1, device body; 2, smoke inlet pipe; 3, discharge pipe; 4, air suction pump; 5, incident pipe; 6, detection pipe; 7, laser emitter; 8, light guide optical fiber; 9, detection channel; 10, uniform mixing structure; 11, mixing cylinder; 12, smoke guide cover; 13, connecting pipe; 14, fixed ring; 15, rotating ring; 16, connecting rod; 17, fixed frame; 18, mixing blade; 19, threaded head; 20, threaded groove; 21, connecting plate; 22, mounting plate; 23, mounting pin; 24, extension rod; 25, locking sleeve. DETAILED DESCRIPTION

[0022] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0023] Embodiment one

[0024] In combination with Figures 1-5The utility model relates to a flue gas emission particulate matter measuring device, including device body 1, one end of device body 1 is fixedly connected with into smoke pipe 2, and the other end of device body 1 is fixedly connected with discharge pipe 3, and the end position of discharge pipe 3 is connected with suction pump 4, one side of device body 1 is connected with incident tube 5, and the other side of device body 1 is connected with detection tube 6, and the end position of incident tube 5 is fixedly installed with laser emitter 7, and the end position of detection tube 6 is connected with light guide fiber 8, and the inside central position of device body 1 is equipped with detection channel 9, and the end position of into smoke pipe 2 is connected with uniform mixing structure 10.

[0025] Refer to Figure 1 And Figure 3 Further get, uniform mixing structure 10 includes mixing cylinder 11, smoke guide cover 12 and link pipe 13, mixing cylinder 11 is located at the end position of into smoke pipe 2, smoke guide cover 12 is fixed at the inlet of mixing cylinder 11, and link pipe 13 is fixed at the outlet of mixing cylinder 11.

[0026] Specifically, smoke guide cover 12 guides the flue gas to the mixing cylinder 11, and the mixed flue gas passes through the link pipe 13 into the into smoke pipe 2.

[0027] Refer to Figure 3 And Figure 4 Further get, the inner side of fixed ring 14 is provided with rotating ring 15, the inner side of rotating ring 15 is provided with connecting rod 16, connecting rod 16 is connected with fixed frame 17 between rotating ring 15, and the outer surface of connecting rod 16 is provided with multiple mixing blades 18 in an inclined manner, the outer surface of link pipe 13 is provided with threaded head 19, the inner wall of into smoke pipe 2 is provided with threaded groove 20 matched with threaded head 19, and link pipe 13 is threadedly connected with into smoke pipe 2 through threaded head 19 and threaded groove 20.

[0028] Specifically, the link pipe 13 is connected with the into smoke pipe 2 through the threaded head 19 and the threaded groove 20, the flue gas enters the inside of the mixing cylinder 11, the flue gas contacts the multiple mixing blades 18 to provide power for the rotating of the rotating ring 15, the rotating ring 15 rotates relative to the fixed ring 14, the multiple mixing blades 18 are driven by the connecting rod 16 to mix the flue gas, ensuring the uniformity of the particulate matter in the flue gas and avoiding the aggregation of the particulate matter in the flue gas.

[0029] Example two

[0030] Refer to Figure 1 And Figure 5And on the basis of embodiment one, further get, the top of the device body 1 is fixedly installed with a connecting plate 21, the outer side of the connecting plate 21 is provided with a mounting plate 22, the outer surface of the mounting plate 22 is connected with a mounting pin 23 in penetration, the mounting plate 22 is connected with an extension rod 24 between the connecting plate 21, the outer surface of the extension rod 24 is sleeved with a locking sleeve 25, and the extension rod 24 is fixedly connected with the connecting plate 21 through the locking sleeve 25.

[0031] Specifically, pull the mounting plate 22, the extension rod 24 drives the mounting plate 22 to reach the appropriate installation position, the extension rod 24 is fixed with the connecting plate 21 through the locking sleeve 25, and the whole measuring device is fixed through the mounting plate 22 and the mounting pin 23.

[0032] Referring to Figure 1 And Figure 2 The inside of the incident tube 5 and the detection tube 6 is provided with a convex lens, and the incident tube 5 and the detection tube 6 are located on the same axis.

[0033] Specifically, the convex lens is used for converging and outputting the scattering light of the particulate matter, and the incident tube 5 and the detection tube 6 are located on the same axis to ensure the accuracy of the measurement position.

[0034] It should be noted that the utility model is a kind of flue gas emission particulate matter measuring device, when using, pull the mounting plate 22, the extension rod 24 drives the mounting plate 22 to reach the appropriate installation position, the extension rod 24 is fixed with the connecting plate 21 through the locking sleeve 25, and the whole measuring device is fixed through the mounting plate 22 and the mounting pin 23, the smoke inlet pipe 2 is placed at the flue gas discharge port, the air suction pump 4 is started, the air suction pump 4 works and the flue gas is sucked into the device body 1, the laser emitter 7 emits laser light through the incident tube 5 to reach the detection channel 9 inside the device body 1, the detection tube 6 measures the particulate matter concentration in the ventilation pipeline according to the scattering light of the particulate matter on the Gauss light beam in the ventilation pipeline, and outputs the particulate matter concentration measurement signal, to complete the measurement of the flue gas emission particulate matter concentration, the adapter pipe 13 is connected with the smoke inlet pipe 2 through the threaded head 19 and the threaded groove 20, the smoke guide cover 12 guides the flue gas to the mixing cylinder 11, after the flue gas enters the inside of the mixing cylinder 11, the flue gas contacts multiple mixing blades 18 to provide power for the rotation of the rotating ring 15, the rotating ring 15 rotates relative to the fixed ring 14, and the multiple mixing blades 18 are driven by the connecting rod 16 to mix the flue gas, to ensure the uniformity of the particulate matter in the flue gas and avoid the aggregation of the particulate matter in the flue gas.

[0035] The basic principle and main features of the present application and the advantages of the present application are shown and described above. Those skilled in the art should understand that the present application is not limited by the above examples, and the above examples and descriptions in the specification are only to illustrate the principles of the present application. Without departing from the spirit and scope of the present application, various changes and improvements can be made to the present application, and these changes and improvements all fall within the scope of the present application.

Claims

1. A device for measuring particulate matter of flue gas emissions, comprising a device body (1), characterised in that: One end of the device body (1) is fixedly connected with an inlet pipe (2), and the other end of the device body (1) is fixedly connected with an outlet pipe (3), the end of the outlet pipe (3) is connected with an air pump (4), one side of the device body (1) is connected with an incident pipe (5), and the other side of the device body (1) is connected with a detection pipe (6), the end of the incident pipe (5) is fixedly installed with a laser emitter (7), the end of the detection pipe (6) is connected with a light guide fiber (8), the inside of the device body (1) is centrally provided with a detection channel (9), and the end of the inlet pipe (2) is connected with a uniform mixing structure (10).

2. A device for measuring particulate matter in flue gas emissions according to claim 1, characterised in that: The uniform mixing structure (10) comprises a mixing cylinder (11), a smoke guide cover (12) and a connecting pipe (13), the mixing cylinder (11) is located at the end of the inlet pipe (2), the smoke guide cover (12) is fixed at the inlet of the mixing cylinder (11), and the connecting pipe (13) is fixed at the outlet of the mixing cylinder (11).

3. A device for measuring particulate matter in flue gas emissions according to claim 2, wherein: The inside of the mixing cylinder (11) is fixedly installed with a fixed ring (14) near both ends, the inner side of the fixed ring (14) is provided with a rotating ring (15), the inner side of the rotating ring (15) is provided with a connecting rod (16), the connecting rod (16) and the rotating ring (15) are connected with a fixed frame (17), and the outer surface of the connecting rod (16) is obliquely provided with a plurality of mixing blades (18).

4. A device for measuring particulate matter in flue gas emissions according to claim 2, wherein: The outer surface of the connecting pipe (13) is provided with a threaded head (19), the inner wall of the inlet pipe (2) is provided with a threaded groove (20) matched with the threaded head (19), and the connecting pipe (13) is screwed with the inlet pipe (2) through the threaded head (19) and the threaded groove (20).

5. A device for measuring particulate matter in flue gas emissions according to claim 1, wherein: The top of the device body (1) is fixedly installed with a connecting plate (21), the outer side of the connecting plate (21) is provided with a mounting plate (22), and the outer surface of the mounting plate (22) is connected with a mounting pin (23).

6. A device for measuring particulate matter in flue gas emissions according to claim 5, wherein: The mounting plate (22) and the connecting plate (21) are connected with an extension rod (24), the outer surface of the extension rod (24) is sleeved with a locking sleeve (25), and the extension rod (24) is fixedly connected with the connecting plate (21) through the locking sleeve (25).

7. A device for measuring particulate matter in flue gas emissions according to claim 1, wherein: The inside of the incident pipe (5) and the detection pipe (6) is provided with a convex lens, and the incident pipe (5) and the detection pipe (6) are located on the same axis.

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