Staged combustion low-nitrogen combustion device

Abstract

The utility model relates to the technical field of low-nitrogen combustion, and discloses a staged combustion low-nitrogen combustion device which comprises a main body mechanism, the main body mechanism comprises a base, a supporting column is arranged at the bottom of the base, a fixing box is fixedly connected to the top of the base, and a sealing gasket is arranged at the front end of the fixing box. A first hinge is arranged at the front end of the fixed box, a machine cover is arranged on the surface of the first hinge, a first transparent window is arranged on the surface of the machine cover, a handle is arranged at the front end of the machine cover, a first inserting connector is arranged in the fixed box, and an air suction pipe is arranged on the right side of the fixed box. By means of the fixing box, the exhaust fan and the sealing strip, during use, gas leakage can be caused along with opening of the combustion chamber door, gas can be contained in the fixing box due to the existence of the fixing box, then the exhaust fan is started to exhaust the gas, then the machine cover is closed, the sealing strip can prevent gas leakage, and gas leakage can be better solved.

Description

Technical Field

[0001] The utility model relates to the technical field of low-nitrogen combustion, in particular to a staged combustion low-nitrogen combustion device. Background Art

[0002] The staged combustion technology is also called reburning technology or three-stage combustion technology. Its characteristic is that the combustion is divided into three areas: the primary combustion area is an oxidizing or weakly reducing atmosphere; in the second combustion area, the secondary fuel is sent into the furnace to make it a reducing atmosphere. Low nitrogen combustion is the generation of nitrogen oxides as part of the combustion reaction: the nitrogen oxides generated by combustion are mainly NO and NO2, collectively referred to as NOx. During the combustion of fuel, NOx in the atmosphere will dissolve in water and generate nitric acid rain. Acid rain will bring extensive harm to the environment and cause huge economic losses.

[0003] Patent No. CN202022927438.8 A staged combustion low-nitrogen combustion device, comprising a base, a device shell is arranged above the base, support legs are arranged below the base, and the device shell and the support legs are connected to the base by screws, a first combustion chamber and a second combustion chamber are arranged inside the device shell, burners are arranged inside the first combustion chamber and the second combustion chamber, a connecting pipe is arranged between the first combustion chamber and the second combustion chamber, and both ends of the connecting pipe extend to the first combustion chamber and the second combustion chamber respectively, a second solenoid valve is arranged outside the connecting pipe, and the second solenoid valve and the connecting pipe are arranged as an integral structure, an absorption box is arranged on one side of the device shell, a sodium nitrate solution is arranged inside the absorption box, an exhaust pipe is arranged between the second combustion chamber and the absorption box, and both ends of the exhaust pipe extend to the second combustion chamber and the interior of the sodium nitrate solution respectively.

[0004] The above-mentioned staged combustion low-nitrogen combustion device, through the arrangement of an absorption box and a dryer, the absorption box can absorb the exhaust gas to achieve denitrification and low-nitrogen combustion, while the dryer can dry the exhaust gas, thereby solving the problem that the exhaust gas produced by combustion contains a large amount of nitrogen-containing gas and the low-nitrogen combustion effect is poor. However, the combustion chamber door is not sealed, which may cause gas leakage. Utility Model Content

[0005] In order to solve the above technical problems, the utility model provides a staged combustion low-nitrogen combustion device.

[0006] The utility model is implemented by the following technical scheme: a staged combustion low-nitrogen combustion device, comprising a main body mechanism, a combustion mechanism is arranged on the top of the main body mechanism, and a filtering mechanism is arranged on the right side of the combustion mechanism;

[0007] The main body mechanism includes a base, a support column is provided at the bottom of the base, a fixed box is fixedly connected to the top of the base, a sealing gasket is provided at the front end of the fixed box, a first hinge is provided at the front end of the fixed box, a cover is provided on the surface of the first hinge, a first transparent window is provided on the surface of the cover, a handle is provided at the front end of the cover, a first plug is provided inside the fixed box, an air intake pipe is provided on the right side of the fixed box, an exhaust fan is fixedly connected to the right side of the air intake pipe, and an input pipe is provided on the right side of the exhaust fan.

[0008] As a further improvement of the above scheme, the combustion mechanism includes a first combustion chamber, a connecting pipe is provided on the right side of the first combustion chamber, a second combustion chamber is provided on the right side of the connecting pipe, an intake pipe is provided on the left side of the first combustion chamber, an exhaust pipe is provided on the right side of the second combustion chamber, a return pipe is provided on the surface of the exhaust pipe, a fan is provided on the left side of the return pipe, a second hinge is provided at the front end of the first combustion chamber, a combustion chamber door is provided at the front end of the first combustion chamber, a second plug is provided at the front end of the first combustion chamber, an electromagnetic valve is provided on the surface of the connecting pipe, and a second transparent window is provided at the front end of the first combustion chamber.

[0009] As a further improvement of the above solution, the filtering mechanism includes a filter box, a filter screen is arranged inside the filter box, activated carbon is arranged inside the filter box, and an air outlet pipe is arranged on the right side of the filter box.

[0010] Compared with the prior art, the beneficial effects of the present invention are:

[0011] The utility model is provided with a fixed box, an exhaust fan and a sealing strip. When in use, the combustion chamber door will cause gas leakage as it is opened. The existence of the fixed box can keep the gas in the fixed box. Then the exhaust fan can be started to extract the gas. After that, the machine cover is closed. The sealing strip can prevent gas leakage, which can better solve the problem of gas leakage.

[0012] The utility model provides a combustion chamber door and a see-through window. When in use, the see-through window can be used to observe the combustion state inside the combustion chamber from the outside, so that the staff can timely control the combustion result. If the fuel is not easy to burn, the combustion chamber door can be opened for sorting, which solves the problem of incomplete combustion of materials due to partial discharge of unburned materials along with the exhaust gas.

[0013] The utility model provides a filter box. When in use, as the gas is burned several times, the waste gas passes through the filter box and is filtered, thereby solving the problem that the tail gas generated by the combustion contains a large amount of nitrogen-containing gas and damages the environment. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1It is a schematic diagram of the overall structure of the utility model;

[0015] Figure 2 This is a schematic diagram of the overall structure of the combustion mechanism of the utility model;

[0016] Figure 3 It is a schematic diagram of the overall structure of the utility model;

[0017] Figure 4 This is a schematic diagram of the first clamping overall structure of the utility model;

[0018] Figure 5 It is a schematic diagram of the overall structure of the filtering mechanism of the utility model.

[0019] Description of main symbols:

[0020] 1. Main body; 101. Base; 102. Support column; 103. Fixed box; 104. Sealing pad; 105. First hinge; 106. Machine cover; 107. First transparent window; 108. Handle; 109. First plug-in; 110. Intake pipe; 111. Exhaust fan; 112. Input pipe; 2. Combustion mechanism; 201. First combustion chamber; 202. Connecting pipe; 203. Second combustion chamber; 204. Intake pipe; 205. Exhaust pipe; 206. Return pipe; 207. Fan; 208. Second hinge; 209. Combustion chamber door; 210. Second plug-in; 211. Solenoid valve; 212. Second transparent window. 3. Filter mechanism; 301. Filter box; 302. Filter net; 303. Activated carbon; 304. Exhaust pipe. DETAILED DESCRIPTION

[0021] The present invention is further described below in conjunction with the accompanying drawings and specific implementation methods. It should be noted that, under the premise of no conflict, the various embodiments or technical features described below can be arbitrarily combined to form a new embodiment.

[0022] Example:

[0023] Please combine Figure 1-5 A staged combustion low-nitrogen combustion device of this embodiment includes a main body mechanism 1, a combustion mechanism 2 is arranged on the top of the main body mechanism 1, and a filtering mechanism 3 is arranged on the right side of the combustion mechanism 2;

[0024] The main body mechanism 1 includes a base 101, a support column 102 is provided at the bottom of the base 101, a fixed box 103 is fixedly connected to the top of the base 101, a sealing gasket 104 is provided at the front end of the fixed box 103, a first hinge 105 is provided at the front end of the fixed box 103, a cover 106 is provided on the surface of the first hinge 105, a first transparent window 107 is provided on the surface of the cover 106, a handle 108 is provided at the front end of the cover 106, a first plug 109 is provided inside the fixed box 103, an air intake pipe 110 is provided on the right side of the fixed box 103, an exhaust fan 111 is fixedly connected to the right side of the air intake pipe 110, and an input pipe 112 is provided on the right side of the exhaust fan 111.

[0025] There are four supporting columns 102 evenly distributed around the base 101 , the inner wall of the fixing box 103 is provided with a protrusion and a through groove is provided in the protrusion, and the rear end of the handle 108 is provided with a protrusion.

[0026] The front end of the fixed box 103 is rotatably connected to the rear end of the machine cover 106 via a first hinge 105 , and the air intake pipe 110 passes through the fixed box 103 and is fixedly connected to an exhaust fan 111 .

[0027] The combustion mechanism 2 includes a first combustion chamber 201, a connecting pipe 202 is arranged on the right side of the first combustion chamber 201, a second combustion chamber 203 is arranged on the right side of the connecting pipe 202, an intake pipe 204 is arranged on the left side of the first combustion chamber 201, an exhaust pipe 205 is arranged on the right side of the second combustion chamber 203, a return pipe 206 is arranged on the surface of the exhaust pipe 205, a fan 207 is arranged on the left side of the return pipe 206, a second hinge 208 is arranged at the front end of the first combustion chamber 201, a combustion chamber door 209 is arranged at the front end of the first combustion chamber 201, a second plug 210 is arranged at the front end of the first combustion chamber 201, a solenoid valve 211 is arranged on the surface of the connecting pipe 202, and a second transparent window 212 is arranged at the front end of the first combustion chamber 201.

[0028] The first combustion chamber 201 is located at the top of the base 101, and the front end of the first combustion chamber 201 is rotatably connected to the rear end of the combustion chamber door 209 through the second hinge 208. The front end of the first combustion chamber 201 is provided with a protrusion and the protrusion is provided with a through groove, and two reflux pipes 206 are provided.

[0029] The filter mechanism 3 comprises a filter box 301 , a filter net 302 is arranged inside the filter box 301 , activated carbon 303 is arranged inside the filter box 301 , and an air outlet pipe 304 is arranged on the right side of the filter box 301 .

[0030] The filter box 301 is located on the right side of the tail gas pipe 205 , and the inside of the tail gas pipe 205 is fixedly connected to the filter box 301 .

[0031] The implementation principle of a staged combustion low-nitrogen combustion device in the embodiment of the present application is as follows: when in use, air enters the first combustion chamber 201 from the air intake pipe 204, and burns with the fuel in the first combustion chamber 201. The gas generated by the combustion enters the second combustion chamber 203 by opening the solenoid valve 211 on the connecting pipe 202, and burns again in the second combustion chamber 203. With the start-up of the fan 207, the gas enters the return pipe 206 through the tail pipe 205, enters the second air intake again, and then enters the first combustion chamber 201 for multiple combustion. If the combustion is insufficient or there is a problem with the fuel handling, it can be observed through the first transparent window 107 and the second transparent window 212, and the transparent window can be used to observe the inside of the combustion chamber from the outside. The combustion state is thus convenient for the staff to timely control the combustion result, or open the cover 106 of the fixed box 103, and then open the combustion chamber door 209 again for adjustment, which solves the problem that some unburned materials are discharged together with the exhaust gas, and the material is not completely burned. As the combustion door is opened, the gas leaks out, and the exhaust fan 111 can be turned on to absorb the gas, and it is put into combustion again, and then the combustion chamber door 209 is closed, and then the cover 106 is closed, and the sealing strip is used to prevent leakage again. After that, the exhaust gas passes through the filter box 301, and is filtered again through the filter mesh 302 and the activated carbon 303, which solves the problem that the exhaust gas generated by the combustion contains a large amount of nitrogen-containing gas and damages the environment, and then is discharged from the exhaust pipe 304.

[0032] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A staged combustion low nitrogen combustion device, comprising a main body (1), characterized in that: A combustion mechanism (2) is arranged on the top of the main body mechanism (1), and a filtering mechanism (3) is arranged on the right side of the combustion mechanism (2); The main body mechanism (1) comprises a base (101), a support column (102) is provided at the bottom of the base (101), a fixed box (103) is fixedly connected to the top of the base (101), a sealing gasket (104) is provided at the front end of the fixed box (103), a first hinge (105) is provided at the front end of the fixed box (103), a cover (106) is provided on the surface of the first hinge (105), a first transparent window (107) is provided on the surface of the cover (106), a handle (108) is provided at the front end of the cover (106), a first plug (109) is provided inside the fixed box (103), an air intake pipe (110) is provided on the right side of the fixed box (103), an exhaust fan (111) is fixedly connected to the right side of the air intake pipe (110), and an input pipe (112) is provided on the right side of the exhaust fan (111).

2. A staged combustion low nitrogen combustion device as claimed in claim 1, characterized in that: The number of the support columns (102) is four and they are evenly distributed around the base (101); the inner wall of the fixing box (103) is provided with a protrusion and a through groove is formed in the protrusion; the rear end of the handle (108) is provided with a protrusion.

3. A staged combustion low nitrogen combustion device as claimed in claim 1, characterized in that: The front end of the fixed box (103) is rotatably connected to the rear end of the cover (106) via a first hinge (105), and the air intake pipe (110) passes through the fixed box (103) and is fixedly connected to an exhaust fan (111).

4. A staged combustion low nitrogen combustion device as claimed in claim 1, characterized in that: The combustion mechanism (2) comprises a first combustion chamber (201), a connecting pipe (202) is arranged on the right side of the first combustion chamber (201), a second combustion chamber (203) is arranged on the right side of the connecting pipe (202), an air intake pipe (204) is arranged on the left side of the first combustion chamber (201), an exhaust pipe (205) is arranged on the right side of the second combustion chamber (203), a return pipe (206) is arranged on the surface of the exhaust pipe (205), a fan (207) is arranged on the left side of the return pipe (206), a second hinge (208) is arranged at the front end of the first combustion chamber (201), a combustion chamber door (209) is arranged at the front end of the first combustion chamber (201), a second plug (210) is arranged at the front end of the first combustion chamber (201), a solenoid valve (211) is arranged on the surface of the connecting pipe (202), and a second transparent window (212) is arranged at the front end of the first combustion chamber (201).

5. A staged combustion low nitrogen combustion device as claimed in claim 4, characterized in that: The first combustion chamber (201) is located at the top of the base (101); the front end of the first combustion chamber (201) is rotatably connected to the rear end of the combustion chamber door (209) via a second hinge (208); a protrusion is provided at the front end of the first combustion chamber (201) and a through groove is provided in the protrusion; and two return pipes (206) are provided.

6. A staged combustion low nitrogen combustion device as claimed in claim 1, characterized in that: The filtering mechanism (3) comprises a filtering box (301), a filtering net (302) is arranged inside the filtering box (301), activated carbon (303) is arranged inside the filtering box (301), and an air outlet pipe (304) is arranged on the right side of the filtering box (301).

7. A staged combustion low nitrogen combustion device as claimed in claim 6, characterized in that: The filter box (301) is located on the right side of the tail gas pipe (205), and the interior of the tail gas pipe (205) is fixedly connected to the filter box (301).

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