CEMS (continuous emission monitoring system) desulfurization outlet flue sampling protection device

Abstract

The utility model discloses a CEMS (continuous emission monitoring system) desulfurization outlet flue sampling protection device which comprises a positioning ring and heat insulation cloth, supporting rods are arranged on the periphery of the outer wall of the positioning ring, a cover plate is sleeved on the supporting rods, a through hole is dug in the center of the cover plate, the heat insulation cloth is arranged between the positioning ring and the cover plate, and upper supporting columns are respectively arranged on the outer walls of two sides of a guide cylinder. The bottom of the upper supporting column is inserted into the lower sleeve, and a bottom plate is arranged at the bottom of the lower sleeve and fixed to the grating net through an iron wire. The heat insulation cloth is arranged between the positioning ring and the cover plate, so that the potential safety hazard that a worker is scalded by hot air in the flue during sampling is avoided, and the sampling safety is improved; the sleeve is arranged at the bottom of the upper supporting column, the extending height of the upper supporting column can be freely adjusted according to the height of the sampling opening, the bottom plate can be fixed to the grating net through the cooperation of the iron wires, the construction stability is guaranteed, use is convenient, and operation is easy.

Description

Technical Field

[0001] This utility model relates to a flue gas sampling protective cover, and more particularly to a CEMS desulfurization outlet flue gas sampling protective device, which belongs to the category of detection and protection devices. Background Technology

[0002] When sampling and testing power plant flues, workers insert a smoke gun into the flue gas duct at the sampling port. A pump at the rear of the flue collects particulate matter from the flue gas into the smoke gun. The concentration of particulate matter is then measured to determine if emissions meet requirements. During this process, when workers open the flange of the sampling port, a large amount of heat and accompanying particulate matter is ejected due to the port's large inner diameter. This not only severely affects the sampling operation but also poses a risk of burns. Utility Model Content

[0003] The technical problem to be solved by this utility model is to overcome the shortcomings of the prior art and provide a sampling protection device for CEMS desulfurization outlet flue gas. By setting heat insulation cloth at the sampling port, it avoids the hot air in the flue gas from burning the staff. It is convenient to use and simple to operate.

[0004] The technical solution adopted by this utility model to solve the technical problem is as follows:

[0005] A sampling and protection device for CEMS desulfurization outlet flue gas includes a positioning ring and a heat insulation cloth. Support rods are arranged around the outer wall of the positioning ring, and a cover plate is fitted on the support rods. A through hole is cut in the center of the cover plate, and a guide cylinder is arranged on the right side of the through hole. A heat insulation cloth is arranged between the positioning ring and the cover plate. Upper support columns are respectively arranged on the outer walls of both sides of the guide cylinder. The bottom of the upper support column is inserted into the lower sleeve. A bottom plate is arranged at the bottom of the lower sleeve, and the bottom plate is fixed to the grid mesh by iron wire.

[0006] The positioning ring is fitted around the outside of the sampling port flange and is fixedly connected to the sampling port flange by bolts.

[0007] The cover plate is fitted onto the support rod and is fixedly connected to the support rod by bolts.

[0008] The heat insulation cloth is distributed in a frustum shape with a larger left end and a smaller right end. The right end of the heat insulation cloth is provided with an outer ring, and the outer ring is provided with bolt holes. The left end of the cover plate is provided with a screw corresponding to the bolt holes. The outer ring is sleeved on the screw and fixed by a matching nut.

[0009] The bolt holes are located around the through hole.

[0010] The upper support column is fixedly connected to the lower sleeve by bolts.

[0011] The guide cylinder has an end cap hinged to its right port, and a support handle is provided at the bottom of the port.

[0012] The positive and beneficial effects of this utility model are:

[0013] 1. This utility model improves the safety of sampling by setting a heat insulation cloth between the positioning ring and the cover plate, and the heat insulation cloth is distributed in a frustum shape, thus avoiding the safety hazard of hot air in the flue causing burns to the staff during sampling. It is convenient to use and easy to operate.

[0014] 2. This utility model allows the extension height of the upper support column to be freely adjusted according to the height of the sampling port by inserting the bottom of the upper support column into the sleeve. In addition, the use of iron wire can fix the base plate to the grid mesh, ensuring the stability of construction. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the structure of this utility model;

[0016] Figure 2 This is a schematic diagram of the structure of the heat insulation cloth of this utility model;

[0017] Figure 3 This is a schematic diagram of the structure of the left end face of the cover plate of this utility model;

[0018] Wherein: 1-positioning ring, 2-support rod, 3-cover plate, 4-heat insulation cloth, 401-outer ring, 5-guide cylinder, 6-upper support column, 7-lower sleeve, 8-base plate, 9-iron wire, 10-end cover, 11-support handle, A-chimney, B-grid mesh, C-sampling port flange. Detailed Implementation

[0019] The present invention will be further explained and described below with reference to the accompanying drawings:

[0020] See the example. Figures 1-3 A sampling and protection device for CEMS desulfurization outlet flue gas includes a positioning ring 1 and a heat insulation cloth 4. Support rods 2 are arranged around the outer wall of the positioning ring 1, and a cover plate 3 is fitted on the support rods 2. A through hole is cut in the center of the cover plate 3, and a guide cylinder 5 is arranged on the right side of the through hole. The heat insulation cloth 4 is arranged between the positioning ring 1 and the cover plate. Upper support columns 6 are respectively arranged on the outer walls of both sides of the guide cylinder 5. The bottom of the upper support column 6 is inserted into the lower sleeve 7. A bottom plate 8 is arranged at the bottom of the lower sleeve 7. The bottom plate 8 is fixed to the grid B by iron wire 9.

[0021] The positioning ring 1 is fitted onto the outside of the sampling port flange C and is fixedly connected to the sampling port flange C by bolts.

[0022] The cover plate 3 is fitted onto the support rod 2 and is fixedly connected to the support rod 2 by bolts.

[0023] The heat insulation cloth 4 is distributed in a frustum shape with a larger left end and a smaller right end. The right end of the heat insulation cloth 4 is provided with an outer ring 401, and bolt holes are provided on the outer ring 401. A screw is provided on the left end of the cover plate 3 at the position corresponding to the bolt holes. The outer ring 401 is sleeved on the screw and fixed by a matching nut.

[0024] Bolt holes are located around the outside of the through hole.

[0025] The upper support 6 is fixedly connected to the lower sleeve 7 by bolts.

[0026] An end cap 10 is hinged to the right port of the guide cylinder 5, and a support handle 11 is provided at the bottom of the port 10.

[0027] The inner diameter of the positioning ring 1 matches the outer diameter of the sampling port flange C.

[0028] In the above description, the left end of the heat insulation cloth is connected to the right end of the positioning ring, and the right end of the heat insulation cloth is provided with an outer ring. The outer ring is fitted onto the screw on the left side of the cover plate and is fixed by a matching nut.

[0029] In the above description, the heat insulation cloth forms a frustum-shaped flue. When in use, the front end of the smoke gun is inserted into the guide tube and then into the flue. Because the right end of the heat insulation cloth is smaller than the positioning ring, the safety hazard of hot air causing burns to workers can be avoided.

[0030] In the above description, the base plate is fixedly connected to the grid mesh of the construction platform by wire.

[0031] In the above description, bolts are provided on the outer wall of the top of the lower sleeve to fix the upper support to the lower sleeve.

[0032] In the above description, there are four support rods, which are evenly distributed around the outer wall of the positioning ring. The cover plate has a hole at the position corresponding to the support rod, and a second guide cylinder is provided on the right side of the hole. Bolts are provided on the outer wall of the second guide cylinder. The cover plate can move horizontally along the support rod and is fixed together by the bolts on the outer wall of the second guide cylinder.

[0033] In the above description, when using the device, remove the flange cover at the sampling port, then quickly slip the positioning ring onto the outside of the flange and fix it with the bolts on the outside of the positioning ring. After installation, open the end cover and insert the smoke gun into the flue to perform the sampling operation. After the sampling operation is completed, quickly close the end cover, remove the positioning ring from the flange, and reinstall the flange cover.

[0034] In the above description, by changing the position of the cover plate on the support rod, the length of the heat insulation cloth can be changed. If the hot air in the flue is heavy, the cover plate can be stretched, so that the air outlet formed by the heat insulation cloth will be longer and the impact force of the hot air will be reduced.

[0035] This utility model improves sampling safety by setting a heat insulation cloth between the positioning ring and the cover plate to avoid the safety hazard of hot air in the flue causing burns to workers during sampling. By setting a sleeve at the bottom of the upper support, the extension height of the upper support can be freely adjusted according to the height of the sampling port. With the use of iron wire, the base plate can be fixed on the grid, ensuring the stability of construction. It is convenient to use and simple to operate.

Claims

1. A CEMS desulfurization outlet flue gas sampling protection device comprising a positioning ring (1) and a heat insulation cloth (4), characterized in that: The outer wall of the positioning ring (1) is provided with a support rod (2), the support rod (2) is sleeved with a cover plate (3), the cover plate (3) can move and fix along the support rod (2); the center of the cover plate (3) is provided with a through hole, the right side of the through hole is provided with a guide cylinder (5); the positioning ring (1) and the cover plate (3) are provided with the heat insulation cloth (4), the heat insulation cloth (4) is in the shape of a circular truncated cone with a large left port and a small right port; the outer wall of the guide cylinder (5) is provided with an upper support column (6) on both sides, the bottom of the upper support column (6) is inserted into the lower sleeve (7), the bottom of the lower sleeve (7) is provided with a bottom plate (8), the bottom plate (8) is fixed on the grid net (B) by the iron wire (9).

2. A CEMS desulphurisation outlet flue gas sampling guard according to claim 1, characterised in that: The positioning ring (1) is sleeved outside the sampling port flange plate (C), and is fixedly connected with the sampling port flange plate (C) through bolts. The cover plate (3) is sleeved on the support rod (2), and is fixedly connected with the support rod (2) through bolts.

3. A CEMS desulfurized exit flue gas sampling guard according to claim 1, wherein: The right port of the heat insulation cloth (4) is provided with an outer ring (401), the outer ring (401) is provided with a bolt hole, the left end face of the cover plate (3) is provided with a screw rod at the position corresponding to the bolt hole, the outer ring (401) is sleeved on the screw rod, and is fixed through the matched nut.

4. A CEMS desulfurized exit flue gas sampling guard according to claim 1, wherein: The bolt hole is located outside the through hole.

5. A CEMS desulfurized exit flue gas sampling guard according to claim 4, wherein: The upper support column (6) is fixedly connected with the lower sleeve (7) through bolts.

6. A CEMS desulfurized exit flue gas sampling guard according to claim 1, wherein: The right port of the guide cylinder (5) is hinged with an end cover (10), and the bottom of the end cover (10) is provided with a handle (11).

7. A CEMS desulfurized exit flue gas sampling guard according to claim 1, wherein: The inner diameter of the positioning ring (1) matches the outer diameter of the sampling port flange plate (C).

8. A CEMS desulfurized exit flue gas sampling guard according to claim 1, wherein: ​

Images