Flue gas on-line monitoring and sampling device

Abstract

The utility model relates to the technical field of flue gas monitoring, in particular to a flue gas on-line monitoring sampling device which comprises a sampling box, a fixing box is fixedly connected to the inner bottom wall of the sampling box, three grooves are evenly formed in the two sides of the inner wall of the fixing box, and a retention layer and an activated carbon layer are clamped in the grooves formed in the two sides of the fixing box respectively. A filtering layer is clamped in a groove formed in the middle of the inner wall of the fixing box, a fixing block is fixedly connected to the inner bottom wall of the sampling box, a rotating column is fixedly connected to the upper surface of the fixing block, and a cleaning plate is clamped to the outer surface of the rotating column. Through the arrangement of the fixing box, the retention layer, the activated carbon layer and the filtering layer, when the smoke sampling device is used, sampled smoke passes through the retention layer fixed above the fixing box and drives the filtering layer, the filtering layer drives the activated carbon layer, and then the retention layer and the activated carbon layer are matched for use; therefore, the effects of filtering and collecting impurities and large particles in the gas and improving the sampling accuracy are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of flue gas monitoring, in particular to a flue gas online monitoring sampling device. Background Art

[0002] Flue gas monitoring refers to the monitoring of the concentration and total amount of gaseous pollutants and particulate matter emitted by air pollution sources. At present, China's sulfur dioxide and carbon dioxide emissions are ranked first and second in the world respectively. The main reason for the serious pollution of air quality is the energy structure dominated by coal-fired power generation, and 70% of China's power generation industry is coal-fired power generation. The flue gas emitted by coal-fired power plants contains smoke, carbon dioxide, sulfur dioxide, nitrogen oxides and a small amount of carbon monoxide. The smoke directly affects the environmental quality of the atmosphere. Carbon dioxide, sulfur dioxide, nitrogen oxides, etc. are all acidic gases and are the main factors in the formation of acid rain. To control the emission of flue gas pollutants from coal-fired power plants, the first thing to do is to do a good job in environmental monitoring of pollution sources, which is the basis and yardstick of environmental management.

[0003] The utility model disclosed in the Chinese utility model patent application disclosure specification CN215985968U discloses an online flue gas monitoring device, including a sampling tube, a gas sensor, a dust sensor and a controller, the sampling tube is a square tube and is connected to an air pump, the sampling tube is provided with a first through hole and a second through hole from the top to the bottom, the sampling tube between the first through hole and the second through hole is provided with the gas sensor, the air inlet end of the sampling tube is provided with the dust sensor, the sampling tube is provided with an annular filter screen passing through the first through hole and the second through hole, the sampling tube is provided with a driving wheel for driving the annular filter screen to rotate, the driving wheel is fixedly connected to the motor, and the gas sensor and the dust sensor are both connected to the controller signal. The utility model can first detect the dust in the flue gas, then filter the dust in the flue gas and then perform gas detection, and then use the gas flow to blow away the dust on the annular filter screen, which can better keep the gas sensor clean.

[0004] However, the device lacks filtering function. During the flue gas monitoring process, large dust and garbage will be attached to the air, which will affect the monitoring sampling results. Not only that, the device lacks cleaning function. After sampling and collection, some particulate matter and other impurities will remain inside the box. Failure to clean in time will affect subsequent monitoring. Utility Model Content

[0005] The purpose of the utility model is to provide a smoke online monitoring sampling device to solve the problems raised in the above background technology.

[0006] In order to achieve the above purpose, the utility model provides the following technical solutions:

[0007] A flue gas online monitoring sampling device,

[0008] A sampling box, wherein a fixing box is fixedly connected to the bottom wall of the sampling box, three grooves are evenly opened on both sides of the inner wall of the fixing box, the grooves opened on both sides of the fixing box are respectively clamped with a retention layer and an activated carbon layer, and a filter layer is clamped inside the groove opened in the middle of the inner wall of the fixing box;

[0009] A fixed block is fixedly connected to the bottom wall of the sampling box, a rotating column is fixedly connected to the upper surface of the fixed block, a cleaning plate is clamped on the outer surface of the rotating column, a cleaning scraper is fixedly connected to the outer surface of the cleaning plate, a pull-out plate is slidably connected to the outer surface of the sampling box, and a push-pull assembly is fixedly connected to the outer surface of the pull-out plate.

[0010] Preferably, the push-pull assembly comprises a fixed plate and a handle, the outer surface of the pull-out plate is fixedly connected to the fixed plate, and the outer surface of the fixed plate is fixedly connected to the handle.

[0011] Preferably, connecting plates are fixedly connected to both sides of the sampling box, a rotating shaft is threadedly connected to one side of the connecting plate, and a holding block is sleeved on the outer surface of the rotating shaft.

[0012] Preferably, a water injection pipe is connected through the upper surface of the sampling box, and a dust cover is threadedly connected to the upper surface of the water injection pipe.

[0013] Preferably, a water outlet pipe is connected through one side of the sampling box, a No. 1 connecting pipe is sleeved on the outer surface of the water outlet pipe, and a control valve is connected through the upper surface of the No. 1 connecting pipe.

[0014] Preferably, a hole is opened on the front side of the sampling box, a sealing ring is fixedly connected to the outer surface of the hole, a No. 2 connecting tube is fixedly connected to the upper surface of the sealing ring, a telescopic tube is threadedly connected to the inner side of the No. 2 connecting tube, and a sampling tube is threadedly connected to the top end of the telescopic tube.

[0015] Compared with the prior art, the beneficial effects of the utility model are:

[0016] 1. This flue gas online monitoring sampling device is equipped with a fixed box, a retention layer, an activated carbon layer, and a filter layer. When in use, the sampled flue gas passes through the retention layer with a filter layer fixed above the fixed box, and the filter layer drives the activated carbon layer. The retention layer and the activated carbon layer are used in combination, thereby achieving the effect of filtering impurities and large particles in the collected gas to improve the sampling accuracy.

[0017] 2. This kind of flue gas online monitoring sampling device is equipped with a fixed block, a rotating column, a cleaning plate and a cleaning scraper. When in use, the fixed column drives the rotating column, the rotating column drives the cleaning plate, the cleaning plate drives the cleaning scraper, and then the cleaning scraper and the rotating column are used in coordination to achieve the effect of cleaning the inside of the sampling device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 This is a schematic diagram of the overall appearance structure of the utility model;

[0019] Figure 2 This is a schematic diagram of the internal structure of the sampling box of the utility model;

[0020] Figure 3 It is a schematic diagram of the structure of the fixed box, retention layer, activated carbon layer, etc. of the utility model;

[0021] Figure 4 This is a schematic diagram of the structure of the fixed block, rotating column, cleaning plate, etc. of the utility model.

[0022] In the figure: 1. sampling box; 2. fixing box; 3. retention layer; 4. activated carbon layer; 5. filtering layer; 6. fixing block; 7. rotating column; 8. cleaning plate; 9. cleaning scraper; 10. pull-out plate; 11. push-pull assembly; 1101. fixing plate; 1102. handle; 12. connecting plate; 13. rotating shaft; 14. holding block; 15. water injection pipe; 16. dust cover; 17. water outlet pipe; 18. connecting pipe No. 1; 19. control valve; 20. sealing ring; 21. connecting pipe No. 2; 22. telescopic tube; 23. sampling tube. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figure 1-Figure 4 As shown, a technical solution provided by the utility model:

[0025] A flue gas online monitoring sampling device,

[0026] A sampling box 1, wherein a fixing box 2 is fixedly connected to the bottom wall of the sampling box 1, three grooves are evenly arranged on both sides of the inner wall of the fixing box 2, a retention layer 3 and an activated carbon layer 4 are respectively clamped in the grooves on both sides of the fixing box 2, and a filter layer 5 is clamped inside the grooves in the middle of the inner wall of the fixing box 2. By setting the fixing box 2, the retention layer 3, the activated carbon layer 4 and the filter layer 5, when in use, the flue gas passes through the retention layer 3 to initially retain large impurity particles, and then passes through the filter layer 5 for further filtration, and finally passes through the activated carbon layer 4 to filter the influencing substances in the collected flue gas, thereby achieving the effect of filtering impurities and large particles in the collected gas and improving the sampling accuracy;

[0027] A fixed block 6 is fixedly connected to the inner bottom wall of the sampling box 1, a rotating column 7 is fixedly connected to the upper surface of the fixed block 6, a cleaning plate 8 is clamped on the outer surface of the rotating column 7, and a cleaning scraper 9 is fixedly connected to the outer surface of the cleaning plate 8. Through the arrangement of the fixed block 6, the rotating column 7, the cleaning plate 8 and the cleaning scraper 9, when in use, the rotating column 7 is fixed to the upper surface of the fixed block 6, the rotating column 7 drives the cleaning plate 8 to rotate and clean, and the cleaning scraper 9 cleans the impurities remaining on the inner wall of the collection box 1, thereby cleaning the inside of the sampling device, and a pull-out plate 10 is slidably connected to the outer surface of the sampling box 1, and a push-pull assembly 11 is fixedly connected to the outer surface of the pull-out plate 10;

[0028] In this embodiment, preferably, the push-pull assembly 11 includes a fixed plate 1101 and a handle 1102. The outer surface of the pull-out plate 10 is fixedly connected to the fixed plate 1101, and the outer surface of the fixed plate 1101 is fixedly connected to the handle 1102. Through the setting of the push-pull assembly 11, when in use, the handle 1102 is welded to the surface of the fixed plate 1101, thereby achieving the effect of using the push-pull assembly 11 to pull the pull-out plate 10 to replace and clean the fixed block 6;

[0029] In this embodiment, preferably, the two sides of the sampling box 1 are fixedly connected with connecting plates 12, one side of the connecting plate 12 is threadedly connected with a rotating shaft 13, and the outer surface of the rotating shaft 13 is sleeved with a gripping block 14. Through the setting of the gripping block 14, when in use, the gripping block 14 is made of a soft material and sleeved on the outer surface of the rotating shaft 13, thereby achieving the effect of facilitating the movement and taking of the collection box 1;

[0030] In this embodiment, preferably, a water injection pipe 15 is connected through the upper surface of the sampling box 1, and a dust cover 16 is threadedly connected to the upper surface of the water injection pipe 15. Through the setting of the water injection pipe 15, when in use, the staff injects water into the collection box 1 through the water injection pipe 15 for cleaning, thereby achieving the effect of water injection cleaning;

[0031] In this embodiment, preferably, a water outlet pipe 17 is connected through one side of the sampling box 1, and a No. 1 connecting pipe 18 is sleeved on the outer surface of the water outlet pipe 17, and a control valve 19 is connected through the upper surface of the No. 1 connecting pipe 18. Through the arrangement of the water outlet pipe 17 and the control valve 19, when in use, the staff controls the control valve 19 to discharge the cleaned sewage in the collection box 1 through the water outlet pipe 17, thereby achieving the effect of discharging the sewage inside the collection box 1;

[0032] In this embodiment, preferably, a hole is opened on the front side of the sampling box 1, a sealing ring 20 is fixedly connected to the outer surface of the hole, a No. 2 connecting tube 21 is fixedly connected to the upper surface of the sealing ring 20, a telescopic tube 22 is threadedly connected to the inner part of the No. 2 connecting tube 21, and a sampling tube 23 is threadedly connected to the top of the telescopic tube 22. Through the arrangement of the sampling tube 23 and the telescopic tube 22, when in use, the staff can control the length of the telescopic tube 22 to make the sampling tube 23 collect samples, thereby achieving the purpose of facilitating the staff to operate the sampling.

[0033] When in use, a flue gas online monitoring sampling device of the present embodiment is provided with a fixed box 2, a retention layer 3, an activated carbon layer 4 and a filter layer 5. When in use, the flue gas passes through the retention layer 3 to initially retain large impurity particles, and then passes through the filter layer 5 for further filtration, and finally passes through the activated carbon layer 4 to filter the affecting substances in the collected flue gas, thereby achieving the effect of filtering impurities and large particles in the collected gas to improve the sampling accuracy. When in use, the rotating column 7 is fixed on the upper surface of the fixed block 6, and the rotating column 7 drives the cleaning plate 8 to rotate and clean, and the cleaning scraper 9 removes the residue in the collection box. 1, so as to clean the impurities on the inner wall of the sampling device. By setting the push-pull component 11, when in use, the handle 1102 is welded to the surface of the fixed plate 1101, so as to achieve the effect of using the push-pull component 11 to pull the pull-out plate 10 to replace and clean the fixed block 6. By setting the holding block 14, when in use, the holding block 14 is made of soft material and is sleeved on the outer surface of the rotating shaft 13, so as to achieve the effect of convenient movement and taking the collection box 1. By setting the sampling tube 23 and the telescopic tube 22, when in use, the staff can control the length of the telescopic tube 22 to make the sampling tube 23 collect samples, so as to achieve the effect of facilitating the staff to operate the sampling.

[0034] The above shows and describes the basic principle, main features and advantages of the utility model. Those skilled in the art should understand that the utility model is not limited by the above embodiments. The above embodiments and descriptions are only preferred examples of the utility model and are not used to limit the utility model. Without departing from the spirit and scope of the utility model, the utility model may have various changes and improvements, which fall within the scope of the utility model to be protected. The scope of protection of the utility model is defined by the attached claims and their equivalents.

Claims

1. A flue gas online monitoring sampling device, Features: include A sampling box (1), wherein a fixing box (2) is fixedly connected to the inner bottom wall of the sampling box (1), three grooves are evenly arranged on both sides of the inner wall of the fixing box (2), a retention layer (3) and an activated carbon layer (4) are respectively clamped in the grooves arranged on both sides of the fixing box (2), and a filter layer (5) is clamped in the groove arranged in the middle of the inner wall of the fixing box (2); The inner bottom wall of the sampling box (1) is fixedly connected to a fixed block (6), the upper surface of the fixed block (6) is fixedly connected to a rotating column (7), the outer surface of the rotating column (7) is clamped with a cleaning plate (8), the outer surface of the cleaning plate (8) is fixedly connected to a cleaning scraper (9), the outer surface of the sampling box (1) is slidably connected to a pull-out plate (10), and the outer surface of the pull-out plate (10) is fixedly connected to a push-pull assembly (11).

2. A flue gas online monitoring sampling device according to claim 1, Features: The push-pull assembly (11) comprises a fixed plate (1101) and a handle (1102); the outer surface of the pull-out plate (10) is fixedly connected to the fixed plate (1101); and the outer surface of the fixed plate (1101) is fixedly connected to the handle (1102).

3. A flue gas online monitoring sampling device according to claim 1, Features: The sampling box (1) is fixedly connected with connecting plates (12) on both sides, a rotating shaft (13) is threadedly connected to one side of the connecting plate (12), and a gripping block (14) is sleeved on the outer surface of the rotating shaft (13).

4. A flue gas online monitoring sampling device according to claim 1, Features: A water injection pipe (15) is connected through the upper surface of the sampling box (1), and a dust cover (16) is threadedly connected to the upper surface of the water injection pipe (15).

5. A flue gas online monitoring sampling device according to claim 1, Features: A water outlet pipe (17) is connected through one side of the sampling box (1), a first connecting pipe (18) is sleeved on the outer surface of the water outlet pipe (17), and a control valve (19) is connected through the upper surface of the first connecting pipe (18).

6. A flue gas online monitoring sampling device according to claim 1, Features: The sampling box (1) has a hole on its front side, a sealing ring (20) is fixedly connected to the outer surface of the hole, a No. 2 connecting tube (21) is fixedly connected to the upper surface of the sealing ring (20), a telescopic tube (22) is threadedly connected to the inside of the No. 2 connecting tube (21), and a sampling tube (23) is threadedly connected to the top of the telescopic tube (22).

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