Flue gas flow detection device for thermal power plant

Abstract

The utility model provides a flue gas flow detection device for a thermal power plant, which belongs to the technical field of flue gas flow detection and comprises a filter shell, one end of the filter shell is fixedly connected with a transmission pipe, and the circumferential surface of the transmission pipe is fixedly connected with a flue gas flow meter. The filter shell is connected with a pipeline, smoke and fire can be adsorbed and filtered when passing through the filter screen, then the flow of the smoke and fire is detected through the smoke flow meter fixedly connected with the circumferential surface of the conveying pipe, and when the filter screen needs to be replaced or maintained, the smoke component detection probe is pulled outwards, so that the smoke component can be detected. After the smoke component detection probe is separated from the inserting groove formed in one end of the mounting block, the filter screen can be taken out of the filter shell, so that a user can conveniently clean or maintain the filter screen, then the steps are reversely operated, and the filter screen is elastically retracted through a spring.

Description

Technical Field

[0001] The utility model belongs to the technical field of flue gas flow detection, and in particular relates to a flue gas flow detection device for a thermal power plant. Background Art

[0002] Flue gas flow detection is a very important link in industrial production, especially in industries that emit large amounts of flue gas, such as electricity, metallurgy, and chemical industry. It is mainly used to monitor the amount of flue gas discharged by combustion equipment (such as boilers, heating furnaces, etc.) to ensure compliance with environmental protection standards and optimize combustion efficiency.

[0003] When flue gas is discharged from a thermal power plant, its flow rate needs to be detected. However, the existing flow detection device can only detect the flow rate of the flue gas and cannot detect and analyze the composition of the flue gas. In addition, when the flue gas is discharged, it needs to pass through a filter. The existing filter is inconvenient to disassemble and assemble, which is very unfavorable for the maintenance and cleaning of the filter. Utility Model Content

[0004] The purpose of the utility model is to provide a flue gas flow detection device for a thermal power plant, aiming to solve the problems mentioned in the background technology.

[0005] To achieve the above objectives, the present invention provides the following technical solutions:

[0006] A flue gas flow detection device for a thermal power plant, comprising:

[0007] A filter housing, one end of which is fixedly connected to a transmission pipe, and a flue gas flow meter is fixedly connected to the circumferential surface of the transmission pipe;

[0008] a filter screen slidably connected to the filter housing;

[0009] A mounting groove is provided at one end of the filter housing, and a mounting block is fixedly connected to one end of the filter screen;

[0010] A plug-in slot is provided at one end of the filter housing and the mounting block, and a smoke component detection probe is movably plugged into the plug-in slot;

[0011] Two force-bearing plates, the two force-bearing plates are respectively fixedly connected to two ends of the smoke composition detection probe;

[0012] Two springs, the two springs being fixedly connected to the two force-bearing plates and the adjacent ends of the filter housing; and

[0013] Two groups of gas component detection mechanisms are provided on the upper side of the filter housing and are used to detect components in the flue gas.

[0014] As a preferred solution of the present invention, each group of the gas component detection mechanism is composed of a detection shell, a display shell, a flue gas component detector, a flue gas component detection probe, two transmission holes and a diversion pipe. The detection shell is fixedly connected to the upper end of the filter shell, the display shell is fixedly connected to the upper end of the detection shell, the flue gas component detector is arranged at one end of the display shell, the flue gas component detection probe is arranged in the detection shell, and the flue gas component detection probe is connected to the flue gas component detector signal. The two transmission holes are both opened at the upper end of the filter shell, and the diversion pipe is fixedly connected to the upper inner wall of the filter shell.

[0015] As a preferred solution of the present invention, an accurate groove is opened at one end of the filter shell, an accurate block is fixedly connected to one end of the filter screen, an accurate rod is fixedly connected to the inner wall of one side of the accurate groove, and the accurate block is slidably connected to the circumferential surface of the accurate rod.

[0016] As a preferred solution of the present invention, one end of the two force-bearing plates is provided with a horizontal hole, one end of the filter shell is fixedly connected to two horizontal rods, and the two force-bearing plates are slidably connected to the circumferential surfaces of the two horizontal rods through the two horizontal holes.

[0017] As a preferred solution of the present invention, one end of the two horizontal rods is fixedly connected to an anti-drop plate, one end of the smoke component detection probe is fixedly connected to a handle, and the circumferential surface of the handle is fixedly connected to an anti-drop sleeve.

[0018] As a preferred solution of the present invention, one end of the filter housing and one end of the transmission pipe are fixedly connected with a connecting plate and a connecting flange respectively.

[0019] Compared with the prior art, the beneficial effects of the present invention are:

[0020] 1. In this solution, when it is necessary to detect the flue gas flow rate, the filter housing is connected to the pipe. When the fireworks pass through the filter, the fireworks can be adsorbed and filtered. Then, the flow rate of the fireworks is detected by a flue gas flowmeter fixedly connected to the circumferential surface of the transmission pipe. When the filter needs to be replaced or maintained, the flue gas composition detection probe is pulled outward. After the flue gas composition detection probe is detached from the plug-in slot opened at one end of the mounting block, the filter can be taken out of the filter housing, which is convenient for the user to clean or maintain the filter. Then, the above steps are reversed, and the force plate and the flue gas composition detection probe are pushed to one end by the elastic retraction of the spring. After the flue gas composition detection probe is plugged into the plug-in slot, the mounting block is fixed in the mounting slot, and then the filter is installed in the filter housing, thereby improving the convenience of disassembly and assembly of the filter.

[0021] 2. In this solution, when the flue gas passes through the filter housing, the flue gas is transmitted into the detection housing through the shunt pipe, and the flue gas is analyzed by the flue gas composition detection probe, and the data is transmitted to the flue gas composition detector for display. There are two groups of gas composition detection mechanisms. After the mechanism on the left side finishes the detection, the flue gas is filtered, and then the gas composition detection mechanism on the right side conducts a secondary analysis of the flue gas to check whether the harmful substances in the flue gas are reduced, so as to judge the filtering effect of the filter mesh. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The accompanying drawings are used to provide a further understanding of the present invention, and constitute a part of the specification. Together with the embodiments of the present invention, they are used to explain the present invention, and do not constitute a limitation to the present invention. In the drawings:

[0023] Figure 1 is the front perspective view of the present invention;

[0024] Figure 2 is in the present invention Figure 1 partial enlarged view of part A;

[0025] Figure 3 is the main sectional perspective view of the present invention;

[0026] Figure 4 is the side sectional perspective view of the present invention.

[0027] In the figure: 1. connecting plate; 2. filter housing; 3. flue gas flowmeter; 4. transmission pipe; 5. connecting flange; 6. detection housing; 7. display housing; 8. flue gas composition detector; 9. shunt pipe; 10. filter mesh; 11. flue gas composition detection probe; 12. stress plate; 13. horizontal rod; 14. anti-disengagement plate; 15. handle; 16. anti-disengagement sleeve; 17. spring; 18. installation groove; 19. installation block; 20. accurate block; 21. accurate groove; 22. accurate rod. DETAILED DESCRIPTION OF THE EMBODIMENTS

[0028] The following will clearly and completely describe the technical solutions in the embodiments of the present invention with reference to the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts shall fall within the protection scope of the present invention.

[0029] Embodiment 1

[0030] Please refer to Figures 1-4 , the present invention provides the following technical solutions:

[0031] A flue gas flow detection device for a thermal power plant, comprising:

[0032] Filter housing 2, one end of the filter housing 2 is fixedly connected with a transmission pipe 4, and a flue gas flowmeter 3 is fixedly connected to the circumferential surface of the transmission pipe 4;

[0033] Filter net 10, the filter net 10 is slidably connected inside the filter housing 2;

[0034] Installation groove 18, the installation groove 18 is opened at one end of the filter housing 2, and one end of the filter net 10 is fixedly connected with an installation block 19;

[0035] Insertion slot, the insertion slot is opened at one ends of the filter housing 2 and the installation block 19, and a flue gas component detection probe 11 is movably inserted into the insertion slot;

[0036] Two stress plates 12, the two stress plates 12 are respectively fixedly connected to both ends of the flue gas component detection probe 11;

[0037] Two springs 17, the two springs 17 are respectively fixedly connected to the closer ends of the two stress plates 12 and the filter housing 2; and

[0038] Two groups of gas component detection mechanisms, both groups of gas component detection mechanisms are arranged on the upper side of the filter housing 2, which are used to detect the components in the flue gas. Each group of gas component detection mechanisms consists of a detection housing 6, a display housing 7, a flue gas component detector 8, a flue gas component detection probe 11, two transmission holes and a shunt pipe 9. The detection housing 6 is fixedly connected to the upper end of the filter housing 2, the display housing 7 is fixedly connected to the upper end of the detection housing 6, the flue gas component detector 8 is arranged at one end of the display housing 7, the flue gas component detection probe 11 is arranged inside the detection housing 6, and the flue gas component detection probe 11 is signal-connected to the flue gas component detector 8. The two transmission holes are both opened at the upper end of the filter housing 2, and the shunt pipe 9 is fixedly connected to the upper inner wall of the filter housing 2.

[0039] In a specific embodiment of the present utility model, when it is necessary to detect the flow rate of the flue gas in a thermal power plant, the filter housing 2 is connected to the flue gas transmission pipeline. When the flue gas passes through the transmission pipe 4, the flow rate and flow velocity of the flue gas can be detected by the flue gas flowmeter 3. When the flue gas passes through the filter net 10, it can be filtered to reduce harmful substances inside. When it is necessary to maintain, disassemble and assemble the filter net 10, the flue gas component detection probe 11 is pulled to the right to disengage it from the insertion slot opened at one end of the mounting block 19. At this time, the filter net 10 can be removed from the filter housing 2, which is convenient for cleaning and maintenance. After the maintenance and cleaning are completed, the mounting block 19 is slid back into the mounting slot 18, and at the same time, the filter net 10 is driven into the filter housing 2. Then, through the elastic pull-back of the spring 17, the force-bearing plate 12 and the flue gas component detection probe 11 are pulled, so that the flue gas component detection probe 11 is re-inserted into the insertion slot, and the filter net 10 can be reinstalled into the filter housing 2. Through the above design, the disassembly, maintenance and cleaning of the filter net 10 are made simpler. After the gas flows out of the filter housing 2, it is guided into the detection housing 6 through the shunt pipe 9. Then, the flue gas component detection probe 11 analyzes the components of the flue gas and is displayed by the flue gas component detector 8. After the flue gas is filtered, it is detected again by another set of gas component detection mechanisms to check whether the harmful substances in the flue gas have decreased, which is convenient for comparing and checking whether the filtering effect of the filter net 10 has decreased and exists. It should be noted that: the specific models of the flue gas flowmeter 3, the flue gas component detection probe 11 and the flue gas component detector 8 are selected by those skilled in the relevant art, and the above-mentioned flue gas flowmeter 3, the flue gas component detection probe 11 and the flue gas component detector 8 and the like all belong to the prior art, and this solution will not be elaborated.

[0040] Specifically, please refer to Figure 2 , an accurate groove 21 is opened at one end of the filter housing 2, an accurate block 20 is fixedly connected to one end of the filter net 10, an accurate rod 22 is fixedly connected to the inner wall of one side of the accurate groove 21, the accurate block 20 is slidably connected to the circumferential surface of the accurate rod 22, horizontal holes are opened at one ends of the two force-bearing plates 12, two horizontal rods 13 are fixedly connected to one end of the filter housing 2, and the two force-bearing plates 12 are slidably connected to the circumferential surfaces of the two horizontal rods 13 through the two horizontal holes respectively.

[0041] In this embodiment: when the filter net 10 is slidably installed into the filter housing 2, the accurate block 20 can be aligned with the accurate rod 22 and slide on its circumferential surface, improving the horizontal sliding accuracy of the filter net 10. When the force-bearing plate 12 moves, it can slide on the circumferential surface of the horizontal rod 13 through the horizontal hole, improving the horizontal sliding stability of the force-bearing plate 12.

[0042] Specifically, please refer to Figure 2One end of the two horizontal rods 13 is fixedly connected to an anti-dropping plate 14, one end of the flue gas component detection probe 11 is fixedly connected to a handle 15, the circumferential surface of the handle 15 is fixedly connected to an anti-dropping sleeve 16, one end of the filter shell 2 and one end of the transmission pipe 4 are fixedly connected to the connecting plate 1 and the connecting flange 5 respectively.

[0043] In this embodiment: the anti-slip plate 14 can prevent the load-bearing plate 12 from being damaged due to excessive sliding, the anti-slip sleeve 16 and the handle 15 can facilitate the pulling of the smoke component detection probe 11, and the connecting plate 1 and the connecting flange 5 can facilitate the connection of the filter housing 2 and the transmission pipe 4 to the external device pipeline, etc.

[0044] The working principle and use process of the present invention are as follows: when it is necessary to detect the flow rate of the flue gas in the thermal power plant, the filter housing 2 is connected to the flue gas transmission pipe. When the flue gas passes through the transmission pipe 4, the flow rate and flow velocity of the flue gas can be detected by the flue gas flowmeter 3. When the flue gas passes through the filter 10, it can be filtered to reduce the harmful substances inside it. When it is necessary to maintain and disassemble the filter 10, the flue gas component detection probe 11 is pulled to the right to disengage it from the plug-in slot opened at one end of the mounting block 19. At this time, the filter 10 can be removed from the filter housing 2, which is convenient for cleaning and maintenance. After the maintenance and cleaning are completed, the mounting block 19 is slid back into the mounting slot 18, and the filter 10 is simultaneously driven into the filter housing 2. The spring 17 is then pulled back elastically to pull the force plate 12 and the smoke component detection probe 11, so that the smoke component detection probe 11 is reinserted into the insertion slot, so that the filter 10 can be reinstalled into the filter shell 2. The above design makes it easier to disassemble, maintain and clean the filter 10. After the gas flows from the filter shell 2, the gas is guided into the detection shell 6 through the diversion pipe 9, and then the components of the smoke are analyzed by the smoke component detection probe 11 and displayed by the smoke component detector 8. After the smoke is filtered, it is tested again by another set of gas component detection mechanisms to check whether the harmful substances in the smoke are reduced, which is convenient for comparison to check whether the filtering effect of the filter 10 is greatly reduced or not.

[0045] Finally, it should be noted that the above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art will be able to modify the technical solutions described in the aforementioned embodiments or replace some of the technical features therein with equivalents. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principles of the present invention shall be included within the scope of protection of the present invention.

Claims

1. A flue gas flow detection device for a thermal power plant, characterized in that, Including: A filter housing (2), one end of the filter housing (2) is fixedly connected to a transmission pipe (4), and a flue gas flowmeter (3) is fixedly connected to the circumferential surface of the transmission pipe (4); A filter screen (10), the filter screen (10) is slidably connected inside the filter housing (2); An installation groove (18), the installation groove (18) is opened at one end of the filter housing (2), and one end of the filter screen (10) is fixedly connected to an installation block (19); A plug-in groove, the plug-in groove is opened at one ends of the filter housing (2) and the installation block (19), and a flue gas component detection probe (11) is movably inserted into the plug-in groove; Two stress plates (12), the two stress plates (12) are respectively fixedly connected to both ends of the flue gas component detection probe (11); Two springs (17), the two springs (17) are respectively fixedly connected to the closer ends of the two stress plates (12) and the filter housing (2); and Two groups of gas component detection mechanisms, both groups of gas component detection mechanisms are arranged on the upper side of the filter housing (2) and are used to detect the components in the flue gas.

2. The flue gas flow detection device for a thermal power plant according to claim 1, characterized in that, Each group of gas component detection mechanisms is composed of a detection housing (6), a display housing (7), a flue gas component detector (8), a flue gas component detection probe (11), two transmission holes and a shunt pipe (9). The detection housing (6) is fixedly connected to the upper end of the filter housing (2), the display housing (7) is fixedly connected to the upper end of the detection housing (6), the flue gas component detector (8) is arranged at one end of the display housing (7), the flue gas component detection probe (11) is arranged inside the detection housing (6), and the flue gas component detection probe (11) is signal-connected to the flue gas component detector (8). The two transmission holes are both opened at the upper end of the filter housing (2), and the shunt pipe (9) is fixedly connected to the upper inner wall of the filter housing (2).

3. A flue gas flow detection device for a thermal power plant according to claim 2, characterized in that, An accurate groove (21) is opened at one end of the filter housing (2), an accurate block (20) is fixedly connected to one end of the filter screen (10), and an accurate rod (22) is fixedly connected to one side inner wall of the accurate groove (21). The accurate block (20) is slidably connected to the circumferential surface of the accurate rod (22).

4. The flue gas flow detection device for a thermal power plant according to claim 3, wherein, Horizontal holes are opened at one ends of the two stress plates (12), and two horizontal rods (13) are fixedly connected to one end of the filter housing (2). The two stress plates (12) are respectively slidably connected to the circumferential surfaces of the two horizontal rods (13) through the two horizontal holes.

5. The flue gas flow detection device for a thermal power plant according to claim 4, characterized in that, Anti-detachment plates (14) are fixedly connected to one ends of the two horizontal rods (13), a handle (15) is fixedly connected to one end of the flue gas component detection probe (11), and an anti-detachment sleeve (16) is fixedly connected to the circumferential surface of the handle (15).

6. The flue gas flow detection device for a thermal power plant according to claim 5, characterized in that, A connecting plate (1) and a connecting flange (5) are respectively fixedly connected to one end of the filter housing (2) and one end of the transmission pipe (4).

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