Low-nitrogen combustor flue gas flow regulating device

Abstract

The utility model relates to a low nitrogen combustor flue gas flow regulating device belongs to low nitrogen combustor auxiliary equipment technical field, a low nitrogen combustor flue gas flow regulating device, including the adjusting valve body, both sides of adjusting valve body all are fixedly arranged with the connecting plate, the one side of adjusting valve body is provided with the connecting pipe connected through the connecting plate, the upper side of connecting pipe is provided with the through slot, the through slot is in the transfixion sliding and is provided with the filter mechanism fixed with connecting pipe, the one side of filter mechanism is fixedly provided with the cleaning mechanism for cleaning attached dust, the filter mechanism includes the top plate fixed on the connecting pipe, in the utility model, through setting the through slot with filter mechanism, it is convenient to filter mechanism and cleaning mechanism to clean down and maintain, through setting filter mechanism, cleaning mechanism and dust catcher, it is convenient to filter and clean the dust particle in flue gas, avoids the dust particle accumulation and leads to the adjusting device blockage.

Description

Technical Field

[0001] This utility model belongs to the technical field of auxiliary equipment for low-NOx burners, and specifically relates to a flue gas flow regulating device for low-NOx burners. Background Technology

[0002] A low-NOx burner is a combustion device that can effectively reduce nitrogen oxide emissions during fuel combustion. The flue gas flow regulating device of a low-NOx burner is a key component used to control the amount of flue gas circulating to reduce nitrogen oxide emissions.

[0003] For example, in the Chinese utility model with announcement number CN222687329U, entitled "A Low-NOx Burner Flue Gas Flow Regulation Device", it specifically includes a valve body, a connecting pipe fixedly connected to one side of the valve body, a U-shaped frame fixedly connected to the inner wall of the connecting pipe, and a filter screen slidably connected to the inner wall of the U-shaped frame. The above-mentioned prior art can prevent particulate impurities from entering the interior of the valve body, ensure the smooth flow of the internal channel of the valve body, reduce the risk of blockage, and improve the stability and reliability of the device. However, after long-term use, stubborn waste will accumulate on the filter screen, and the filter screen needs to be cleaned, maintained, or replaced regularly. It is inconvenient to disassemble the filter mechanism and the cleaning mechanism for cleaning and maintenance. Therefore, a low-NOx burner flue gas flow regulation device is needed now. Utility Model Content

[0004] The purpose of this utility model is to provide a low-NOx burner flue gas flow regulating device with a simple structure and reasonable design in order to solve the above problems.

[0005] This utility model achieves the above objectives through the following technical solutions: A low-NOx burner flue gas flow regulating device includes a regulating valve body, with connecting plates fixedly installed on both sides of the regulating valve body. A connecting pipe is provided on one side of the regulating valve body and connected through the connecting plates. A through groove is opened on the upper side of the connecting pipe, and a filter mechanism fixed to the connecting pipe is slidably installed through the through groove. A cleaning mechanism for cleaning adhering dust is fixedly installed on one side of the filter mechanism.

[0006] As a further optimization of this utility model, the filtering mechanism includes a top plate fixed on the connecting pipe, a filter screen fixedly disposed on the lower side of the top plate, a locking block fixedly disposed on the lower side of the filter screen, and a locking groove that engages with the locking block is opened on the lower side of the inside of the connecting pipe.

[0007] As a further optimization of this utility model, the cleaning mechanism includes a second servo motor fixed to the upper side of the top plate. The output shaft of the second servo motor is fixedly provided with a first bevel gear. A second bevel gear is meshed with the lower side of the first bevel gear. A connecting rod that rotates through the filter screen is fixedly provided on one side of the second bevel gear. A scraper that is attached to the filter screen and to the inside of the connecting pipe is fixedly provided on one side of the connecting rod. A protective cover that protects the first bevel gear and the second bevel gear is fixedly provided on one side of the filter screen.

[0008] As a further optimization of this utility model, a collection box is fixedly connected to the lower side of the connecting pipe, a sewage pipe is fixedly connected to the lower side of the collection box, a vacuum cleaner is fixedly installed on one side of the sewage pipe, and a waste discharge port is fixedly installed at the output port of the vacuum cleaner.

[0009] As a further optimization of this utility model, a mounting bracket is fixedly provided on the upper side of the regulating valve body, a first servo motor is fixedly provided on the upper side of the mounting bracket, and a valve disc rotating inside the regulating valve body is fixedly provided on the output shaft of the first servo motor.

[0010] As a further optimization of this utility model, the middle part of the regulating valve body is a spherical structure, and the outer side of the valve disc is in contact with the inner side of the spherical structure in the middle part of the regulating valve body.

[0011] The beneficial effects of this utility model are as follows: This utility model features a through-slot and a filtering mechanism. The lower side of the filter screen engages with the slot on the connecting pipe via a locking block. The two sides of the top plate are fixed to the connecting pipe with bolts. The filter screen, along with the cleaning mechanism on the top plate, can be removed from the connecting pipe, facilitating the removal of the filtering mechanism and the cleaning mechanism for cleaning and maintenance.

[0012] This invention incorporates a filtration mechanism, a cleaning mechanism, and a vacuum cleaner. Dust particles in the flue gas are filtered by the filter screen. A second servo motor drives a first bevel gear to rotate, which in turn drives a second bevel gear to rotate. This causes a scraper to scrape off dust particles from one side of the filter screen. The scraper has an "L"-shaped structure, which can simultaneously scrape off dust particles from the inner wall of the connecting pipe. The scraped dust particles are then sucked by the vacuum cleaner through a collection box and a drain pipe, and discharged from the outlet. This facilitates the filtration and cleaning of dust particles in the flue gas, preventing dust particles from accumulating and clogging the regulating device. Attached Figure Description

[0013] Figure 1 This is a schematic diagram of the overall front structure of this utility model; Figure 2 This is a schematic diagram of the overall rear structure of this utility model; Figure 3This is a schematic diagram of the overall front sectional structure of this utility model; Figure 4 This is a utility model Figure 3 Enlarged view of point A in the middle; Figure 5 This is a front sectional view of the regulating valve body of this utility model; Figure 6 This is a side view of the connecting pipe and filter mechanism of this utility model.

[0014] In the diagram: 1. Regulating valve body; 2. Mounting bracket; 3. First servo motor; 4. Valve disc; 5. Connecting plate; 6. Connecting pipe; 7. Through groove; 8. Filtering mechanism; 801. Top plate; 802. Filter screen; 803. Locking block; 804. Locking groove; 9. Cleaning mechanism; 901. Second servo motor; 902. First bevel gear; 903. Second bevel gear; 904. Connecting rod; 905. Scraper; 906. Protective cover; 10. Collection box; 11. Sewage pipe; 12. Vacuum cleaner; 13. Discharge port. Detailed Implementation

[0015] The present application will now be described in further detail with reference to the accompanying drawings. It should be noted that the following specific embodiments are only used to further illustrate the present application and should not be construed as limiting the scope of protection of the present application. Those skilled in the art can make some non-essential improvements and adjustments to the present application based on the above application content.

[0016] Example 1 like Figure 1 , Figure 2 , Figure 3 , Figure 5 As shown, a low-NOx burner flue gas flow regulating device includes a regulating valve body 1. A mounting bracket 2 is fixedly installed on the upper side of the regulating valve body 1. A first servo motor 3 is fixedly installed on the upper side of the mounting bracket 2. A valve disc 4 is fixedly installed on the output shaft of the first servo motor 3. The valve disc 4 rotates inside the regulating valve body 1. The middle part of the regulating valve body 1 is a spherical structure. The outer side of the valve disc 4 is in contact with the inner side of the spherical structure in the middle part of the regulating valve body 1. When the first servo motor 3 is started, it drives the valve disc 4 to rotate. When the first servo motor 3 rotates, the side separates from the regulating valve body 1 to form a channel. The flue gas is discharged from the channel. Connecting plates 5 are fixedly installed on both sides of the regulating valve body 1. The connecting plates 5 are used to connect the device and the pipe fittings. The flue gas enters from the side of the regulating valve body 1 near the connecting pipe 6 and is discharged from the other side of the regulating valve body 1.

[0017] like Figure 6As shown, a connecting pipe 6 is provided on one side of the regulating valve body 1, and connecting plates 5 are also fixedly provided on both sides of the connecting pipe 6. The connection between the connecting pipe 6 and the regulating valve body 1 is achieved by multiple bolts passing through the connecting plates 5, thus fixing the regulating valve body 1 and the connecting pipe 6 together. A through groove 7 is provided on the upper side of the connecting pipe 6, and a filter mechanism 8 is slidably arranged through the through groove 7. The filter mechanism 8 includes a top plate 801, which is fixed to the connecting pipe 6. The two sides of the top plate 801 are fixed to the connecting pipe 6 by bolts. The top plate 801 can be removed. The bolts allow the filter mechanism 8 to be pulled out from the through groove 7. A filter screen 802 is fixedly installed on the lower side of the top plate 801. The flue gas is filtered through the filter screen 802 to remove dust and other particulate matter, preventing excessive accumulation of dust particles that could clog the regulating valve body 1. A locking block 803 is fixedly installed on the lower side of the filter screen 802. A locking groove 804 is opened on the lower side of the inside of the connecting pipe 6. The locking block 803 is engaged in the locking groove 804. When installing the filter screen 802, the locking block 803 is engaged in the locking groove 804 to connect and position the filter screen 802.

[0018] like Figure 3 , Figure 4 As shown, a cleaning mechanism 9 for cleaning adhering dust is fixedly installed on one side of the filter mechanism 8. The cleaning mechanism 9 includes a second servo motor 901, which is fixed to the upper side of the top plate 801. A first bevel gear 902 is fixedly installed on the output shaft of the second servo motor 901. A second bevel gear 903 is meshed on the lower side of the first bevel gear 902. A connecting rod 904 is fixedly installed on one side of the second gear 903, and the connecting rod 904 rotatably passes through the middle of the filter screen 802. A scraper 905 is fixedly installed on one side of the second bevel gear 903. The second servo motor 901 drives the first bevel gear 902 to rotate, and the first bevel gear 902 drives the meshing second bevel gear 903 to rotate, causing the scraper 905 to rotate. Plate 905 rotates on one side of filter screen 802, scraping off dust particles accumulated on filter screen 802. One side of the second bevel gear 903 passes through the middle of filter screen 802 via a rod. Scraper 905 is an "L" shaped plate. One side of scraper 905 is attached to one side of filter screen 802, and the other side of scraper 905 is attached to the inner side of connecting pipe 6. When scraper 905 rotates, it scrapes off the dust particles attached to the inner wall of connecting pipe 6. A protective cover 906 is fixedly installed on one side of filter screen 802. The protective cover 906 is located on the outside of the two gear discs to prevent dust and other particles from adhering to the first bevel gear 902 and the second bevel gear 903, thus affecting the connection between the first bevel gear 902 and the second bevel gear 903.

[0019] like Figure 3 , Figure 6As shown, a collection box 10 is fixedly connected to the lower side of the connecting pipe 6, and a drain pipe 11 is fixedly connected to the lower side of the collection box 10. A vacuum cleaner 12 is fixedly installed on one side of the drain pipe 11, and a waste discharge port 13 is fixedly installed at the output port of the vacuum cleaner 12. The dust particles scraped off by the scraper 905 are sucked by the vacuum cleaner 12 and collected into the collection box 10, and then discharged from the discharge port 13 of the vacuum cleaner 12 through the drain pipe 11.

[0020] It should be noted that, in use, this low-NOx burner flue gas flow regulating device connects the two sides of the regulating valve body 1 to the connecting pipes via the connecting plate 5 using bolts. The first servo motor 3 and the second servo motor 901 are turned on. The first servo motor 3 drives the valve disc 4 to rotate, regulating the flow rate of the flue gas. When the flue gas is discharged from the regulating valve body 1, it first passes through the filter screen 802 for filtration. The second servo motor 901 is started, causing the scraper 905 to rotate and scrape off the dust particles attached to the filter screen 802 and the inside of the connecting pipe 6 to prevent accumulation and blockage of the filter screen 802. Then, the vacuum cleaner 12 is turned on, and the vacuum cleaner 12 sucks the scraped dust particles downwards. Finally, the dust particles are discharged from the discharge port 13.

[0021] The filter mechanism 8 and the cleaning mechanism 9 need to be removed for regular maintenance or replaced when damaged. Remove the bolts fixing the top plate 801, and the filter mechanism 8 and the cleaning mechanism 9 can be removed together. Maintain the removed filter screen 802, and then maintain the second servo motor 901, the first bevel gear 902, the second bevel gear 903, etc. After maintenance, insert the filter mechanism 8 into the through groove 7 until the locking block 803 is engaged in the locking slot 804. Fix the top plate 801 to the connecting pipe 6 with bolts to complete the installation. After that, it can be used again.

[0022] The embodiments described above are merely examples of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of this utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these modifications and improvements all fall within the protection scope of this utility model.

Claims

1. A flue gas flow regulating device for a low-NOx burner, comprising a regulating valve body (1), characterized in that, A connecting plate (5) is fixedly provided on both sides of the regulating valve body (1). A connecting pipe (6) is provided on one side of the regulating valve body (1) and connected through the connecting plate (5). A through groove (7) is provided on the upper side of the connecting pipe (6). A filter mechanism (8) fixed to the connecting pipe (6) is slidably provided in the through groove (7). A cleaning mechanism (9) for cleaning the attached dust is fixedly provided on one side of the filter mechanism (8).

2. The low-NOx burner flue gas flow regulating device according to claim 1, characterized in that: The filtering mechanism (8) includes a top plate (801) fixed on the connecting pipe (6), a filter screen (802) is fixedly provided on the lower side of the top plate (801), a locking block (803) is fixedly provided on the lower side of the filter screen (802), and a slot (804) is opened on the lower side of the inside of the connecting pipe (6) to engage with the locking block (803).

3. The low-NOx burner flue gas flow regulating device according to claim 2, characterized in that: The cleaning mechanism (9) includes a second servo motor (901) fixed on the upper side of the top plate (801). The output shaft of the second servo motor (901) is fixedly provided with a first bevel gear (902). A second bevel gear (903) is meshed on the lower side of the first bevel gear (902). A connecting rod (904) that rotates through the filter screen (802) is fixedly provided on one side of the second bevel gear (903). A scraper (905) that is attached to the filter screen (802) and attached to the inner side of the connecting pipe (6) is fixedly provided on one side of the connecting rod (904). A protective cover (906) that protects the first bevel gear (902) and the second bevel gear (903) is fixedly provided on one side of the filter screen (802).

4. The low-NOx burner flue gas flow regulating device according to claim 3, characterized in that: The lower side of the connecting pipe (6) is fixedly connected to a collection box (10), the lower side of the collection box (10) is fixedly connected to a drain pipe (11), a vacuum cleaner (12) is fixedly installed on one side of the drain pipe (11), and a waste discharge port (13) is fixedly installed at the output port of the vacuum cleaner (12).

5. The low-NOx burner flue gas flow regulating device according to claim 1, characterized in that: A mounting bracket (2) is fixedly provided on the upper side of the regulating valve body (1), and a first servo motor (3) is fixedly provided on the upper side of the mounting bracket (2). A valve disc (4) that rotates inside the regulating valve body (1) is fixedly provided on the output shaft of the first servo motor (3).

6. The low-NOx burner flue gas flow regulating device according to claim 5, characterized in that: The middle part of the regulating valve body (1) is a spherical structure, and the outer side of the valve disc (4) is in contact with the inner side of the spherical structure in the middle part of the regulating valve body (1).

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