Filtering device for gas emission of gas-fired boiler

Abstract

The utility model provides a filter device for gas emission of a gas-fired boiler, which belongs to the technical field of gas-fired boilers and comprises a shell, a cover plate, a filter screen, a filter screen, a filter screen, a filter screen, a filter screen, a filter screen, a filter screen and a filter screen, the cover plate is detachably mounted on one side of the shell, and the bottom end of the cover plate is provided with a hinge connected with the shell; the cleaning structure comprises a connecting rod fixed in the shell, a housing installed on one side of the connecting rod, a connecting shaft inserted into the top end in the housing, a scrubbing brush fixed to the top end of the connecting shaft and a transmission assembly arranged in the housing. According to the device disclosed by the utility model, the motor drives the plate brush to move at the bottom end of the filter plate through the transmission rod, the second bevel gear, the first bevel gear and the connecting shaft to clean ash and carbon particles at the bottom of the filter plate, so that the bottom cleaning function of the device is realized, and the bottom of the filter plate is convenient to clean; and ash and carbon particles attached to the bottom of the filter plate are removed, so that the filter plate is kept smooth, waste gas is conveniently filtered, and the functionality of the device is enhanced.

Description

Technical Field

[0001] The utility model relates to the technical field of gas boilers, and in particular to a filtering device for gas exhaust of gas boilers. Background Art

[0002] The gas emitted by gas boilers is a pollutant in the combustion exhaust gas, mainly including sulfur dioxide, nitrogen monoxide, nitrogen dioxide and smoke, which have an important impact on the atmospheric environment. In order to reduce the emissions of gas boilers, a filtering device for gas boiler gas emissions is set up to filter the gas emitted by gas boilers and remove pollutants so that the gas emissions of gas boilers meet the emission standards.

[0003] After searching, the Chinese patent application number 202020301913.8 discloses a boiler flue gas filter device, which relates to the technical field of flue gas filter devices, in order to solve the problem that the existing boiler flue gas cannot be filtered well and the emission performance is not perfect enough. Conical smoke guide ports are installed at both ends of the filter device housing, and the conical smoke guide ports are fixedly connected to the filter device housing, and a fixed connection port is installed on the outside of the conical smoke guide port. A cleaning and disassembly plate is installed at the middle position of the front end of the filter device housing, and the cleaning and disassembly plate is fixedly connected to the filter device housing by fixing bolts. An internal smoke guide pipe is arranged inside the filter device housing and the conical smoke guide port, and a mounting fixed block is installed on one side of the filter device housing, and a second fixed block is installed on the other side of the filter device housing;

[0004] The above patent still has the following deficiencies: (1) The bottom of the filter plate is easily clogged. Since the gas discharged by the gas boiler contains a large amount of ash and carbon particles, the ash and carbon particles are easy to clog the pores at the bottom of the filter plate during the process of filtering the gas, which hinders the exhaust gas from entering the interior of the filter plate and affects the flow of the exhaust gas;

[0005] (2) The service life of the filter plate is short. Since the temperature of the gas discharged by the gas boiler is high, the filter plate is affected by high temperature for a long time, which can easily cause stress due to the principle of thermal expansion and contraction, and then cause cracking. The filter plate may be deformed due to high temperature, causing the filter plate to lose its original filtering effect.

[0006] Therefore, there is an urgent need for a filtering device for gas boiler gas emissions to solve the above problems. Utility Model Content

[0007] The purpose of the utility model is to address the existing defect that the bottom of the filter plate is easily clogged. Since the gas discharged by the gas boiler contains a large amount of ash and carbon particles, the ash and carbon particles are easy to clog the pores at the bottom of the filter plate during the process of filtering the gas, hindering the exhaust gas from entering the interior of the filter plate and affecting the flow of the exhaust gas.

[0008] In order to achieve the above-mentioned invention object, the utility model provides the following technical solutions:

[0009] A filtering device for gas exhaust of a gas boiler, comprising a housing, and further comprising:

[0010] A cover plate is detachably mounted on one side of the housing, and a hinge connected to the housing is mounted on the bottom end of the cover plate, and a fixing bolt is mounted on the top end of the cover plate;

[0011] A cooling structure is arranged on the other side of the shell, and an air intake pipe is arranged on one side of the cooling structure;

[0012] An exhaust hole is provided at the top of the shell, and an ash discharge port is provided at the bottom of the shell;

[0013] A movable seat is fixed on both sides of the inner part of the shell, and a movable block is slidably arranged inside the movable seat, and a filter plate is fixed on one side of the movable block;

[0014] The cleaning structure is arranged on one side of the shell, wherein the cleaning structure includes a connecting rod fixed inside the shell, a cover shell installed on one side of the connecting rod, a connecting shaft inserted at the top end of the cover shell, a brush fixed at the top end of the connecting shaft and a transmission assembly arranged inside the cover shell.

[0015] As a preferred technical solution of the present application, the transmission assembly includes an electric telescopic rod fixed at the bottom end of the cover shell, a first bevel gear rotatably connected to the top of the electric telescopic rod and connected to the connecting shaft, a transmission rod inserted inside the connecting rod, a second bevel gear fixed on one side of the transmission rod and meshing with the first bevel gear, and a motor connected to the other side of the transmission rod.

[0016] Through the above technical solution, the motor drives the plate brush to move at the bottom end of the filter plate through the transmission rod, the second bevel gear, the first bevel gear and the connecting shaft, so as to clean the ash and carbon particles at the bottom of the filter plate.

[0017] As a preferred technical solution of the present application, a ball bearing is installed at the connection position between the first bevel gear and the electric telescopic rod, and a rotating structure is formed between the connecting shaft and the cover shell.

[0018] Through the above technical solution, the friction between the first bevel gear and the electric telescopic rod is reduced by the ball bearing, so that the first bevel gear rotates smoothly.

[0019] As a preferred technical solution of the present application, the connecting rod and the housing are welded into an integrated structure, and the transmission rod extends to the outside of the housing and is connected to the motor.

[0020] Through the above technical solution, the cover shell is supported and fixed by the connecting rod, and the rotational force of the motor is transmitted to the second bevel gear through the transmission rod.

[0021] As a preferred technical solution of the present application, the cooling structure includes a box body fixed on one side of the outer shell, a solenoid valve installed at the bottom of the box body, a water pump fixed at the top of the solenoid valve, a spray pipe connected to one side of the water pump, a nozzle fixed at the bottom of the spray pipe, an inclined plate fixed inside the box body, and a water suction pipe installed on one side of the water pump.

[0022] Through the above technical solution, cold water is introduced into the interior of the water pump through the water suction pipe, so that the water pump sprays cold water from the nozzle to cool the exhaust gas, and the solenoid valve is opened to discharge the exhaust water inside the box.

[0023] As a preferred technical solution of the present application, several groups of inclined plates are fixed inside the box, and the groups of inclined plates are distributed at equal intervals inside the box.

[0024] Through the above technical solution, the time that the exhaust gas passes through the inside of the box is prolonged by using multiple groups of evenly arranged inclined plates, thereby improving the cooling effect.

[0025] Compared with the prior art, the utility model has the following beneficial effects:

[0026] In the scheme of this application:

[0027] The motor drives the plate brush to move at the bottom of the filter plate through the transmission rod, the second bevel gear, the first bevel gear and the connecting shaft to clean the ash and carbon particles at the bottom of the filter plate, thereby realizing the bottom cleaning function of the device, facilitating the cleaning of the bottom of the filter plate, removing the ash and carbon particles attached to the bottom of the filter plate, keeping the filter plate unobstructed, facilitating the filtering of the exhaust gas, and enhancing the functionality of the device;

[0028] By introducing cold water into the water pump through the suction pipe, the water pump sprays cold water from the nozzle to cool the exhaust gas. The waste water inside the box can be discharged by opening the solenoid valve, thereby realizing the exhaust gas cooling function of this device. By lowering the temperature of the exhaust gas, the heat inside the filter plate is dissipated to prevent heat damage and extend the service life of the filter plate. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 This is one of the schematic diagrams of the structure of the utility model;

[0030] Figure 2 This is the second schematic diagram of the structure of the utility model;

[0031] Figure 3 A schematic diagram of a three-dimensional cross-sectional structure of a cooling structure provided in this application;

[0032] Figure 4This is a schematic diagram of the three-dimensional cross-sectional structure of the cleaning structure provided in this application.

[0033] Markings in the figure: 1. Shell; 2. Exhaust hole; 3. Fixing bolt; 4. Cover plate; 5. Hinge; 6. Cooling structure; 601. Box body; 602. Water suction pipe; 603. Solenoid valve; 604. Inclined plate; 605. Nozzle; 606. Spray pipe; 607. Water pump; 7. Air inlet pipe; 8. Moving block; 9. Cleaning structure; 901. Motor; 902. Transmission rod; 903. Electric telescopic rod; 904. Cover shell; 905. First bevel gear; 906. Connecting shaft; 907. Plate brush; 908. Second bevel gear; 909. Connecting rod; 10. Filter plate; 11. Moving seat; 12. Ash discharge port. DETAILED DESCRIPTION

[0034] To make the purpose, technical solution and advantages of the embodiment of the utility model clearer, the technical solution in the embodiment of the utility model will be described clearly and completely in conjunction with the accompanying drawings. Obviously, the described embodiment is a part of the embodiment of the utility model, not all of the embodiments.

[0035] like Figure 1-4 As shown, the filtering device for gas exhaust of a gas boiler proposed in this embodiment includes a housing 1, and also includes:

[0036] A cover plate 4 is detachably mounted on one side of the housing 1, and a hinge 5 connected to the housing 1 is mounted on the bottom end of the cover plate 4, and a fixing bolt 3 is mounted on the top end of the cover plate 4;

[0037] A cooling structure 6 is arranged on the other side of the housing 1, and an air inlet pipe 7 is arranged on one side of the cooling structure 6;

[0038] An exhaust hole 2 is provided at the top of the housing 1, and an ash discharge port 12 is provided at the bottom of the housing 1;

[0039] A movable seat 11 is fixed on both sides of the inner part of the housing 1, and a movable block 8 is slidably arranged inside the movable seat 11, and a filter plate 10 is fixed on one side of the movable block 8;

[0040] The cleaning structure 9 is arranged on one side of the outer shell 1, wherein the cleaning structure 9 includes a connecting rod 909 fixed inside the outer shell 1, a cover shell 904 installed on one side of the connecting rod 909, a connecting shaft 906 inserted at the top end inside the cover shell 904, a brush 907 fixed at the top end of the connecting shaft 906, and a transmission assembly arranged inside the cover shell 904.

[0041] As shown Figure 2 and Figure 4As shown, as a preferred embodiment, on the basis of the above-mentioned method, further, the transmission assembly includes an electric telescopic rod 903 fixed at the bottom end of the inner part of the cover 904, a first bevel gear 905 rotatably connected to the top of the electric telescopic rod 903 and connected to the connecting shaft 906, a transmission rod 902 inserted in the connecting rod 909, a second bevel gear 908 fixed to one side of the transmission rod 902 and meshing with the first bevel gear 905, and a motor 901 connected to the other side of the transmission rod 902, a ball bearing is installed at the connection position between the first bevel gear 905 and the electric telescopic rod 903, a rotating structure is formed between the connecting shaft 906 and the cover 904, and the connecting rod 90 9 and the housing 1 are welded into an integrated structure, and the transmission rod 902 extends to the outside of the housing 1 and is connected to the motor 901. By starting the motor 901, the motor 901 drives the second bevel gear 908 to rotate through the transmission rod 902, and then the second bevel gear 908 drives the first bevel gear 905 to rotate through the teeth, so that the first bevel gear 905 drives the plate brush 907 to move at the bottom end of the filter plate 10 through the connecting shaft 906, and the ash and carbon particles at the bottom of the filter plate 10 are cleaned to keep the filter plate 10 unobstructed. By starting the electric telescopic rod 903, the first bevel gear 905 and the plate brush 907 are driven to move downward, so that the plate brush 907 is not easy to interfere with the replacement of the filter plate 10.

[0042] like Figure 1 , Figure 2 and Figure 3 As shown, as a preferred embodiment, on the basis of the above method, further, the cooling structure 6 includes a box body 601 fixed on one side of the housing 1, a solenoid valve 603 installed at the bottom of the box body 601, a water pump 607 fixed at the top of the solenoid valve 603, a spray pipe 606 connected to one side of the water pump 607, a nozzle 605 fixed at the bottom of the spray pipe 606, an inclined plate 604 fixed inside the box body 601, and a water suction pipe 602 installed on one side of the water pump 607, wherein the inclined plate 604 is fixed at the bottom of the box body 601. Several groups of inclined plates 604 are fixed inside, and are evenly spaced inside the box 601. By connecting the water suction pipe 602 to the external pipeline, cold water is introduced into the water pump 607 through the water suction pipe 602. Then the water pump 607 inputs the cold water into the spray pipe 606, and the cold water is sprayed out from the nozzle 605 to cool the exhaust gas. The inclined plates 604 extend the time that the exhaust gas passes through the box 601 to improve the cooling effect. The solenoid valve 603 is opened to discharge the waste water inside the box 601.

[0043] Specifically, when the filtering device for gas emissions from gas boilers is in use: the exhaust gas is introduced into the interior of the cooling structure 6 through the air inlet pipe 7, so that the cooling structure 6 cools the exhaust gas, and then the cooled exhaust gas enters the interior of the outer shell 1, and the sulfides, nitrides, smoke, etc. in the exhaust gas are filtered out through the filter plate 10, and the filtered exhaust gas is discharged through the exhaust hole 2, and the fixing bolt 3 is rotated to pull the cover plate 4 to rotate around the hinge 5 to open the cover plate 4, and the filter plate 10 is pulled to drive the moving block 8 to slide inside the moving seat 11, and the filter plate 10 is taken out and replaced.

[0044] By starting the motor 901, the motor 901 drives the second bevel gear 908 to rotate through the transmission rod 902, and then the second bevel gear 908 drives the first bevel gear 905 to rotate through the teeth, so that the first bevel gear 905 drives the brush 907 to move at the bottom end of the filter plate 10 through the connecting shaft 906, and the ash and carbon particles at the bottom of the filter plate 10 are cleaned to keep the filter plate 10 unobstructed. By starting the electric telescopic rod 903, the first bevel gear 905 and the brush 907 are driven to move downward, so that the brush 907 is not easy to interfere with the replacement of the filter plate 10;

[0045] By connecting the water suction pipe 602 with the external pipeline, cold water is introduced into the interior of the water pump 607 through the water suction pipe 602, and then the water pump 607 inputs the cold water into the interior of the spray pipe 606, so that the cold water is sprayed out from the nozzle 605 to cool the exhaust gas. The inclined plate 604 prolongs the time that the exhaust gas passes through the inside of the box 601 to improve the cooling effect. Opening the solenoid valve 603 can discharge the waste water inside the box 601.

[0046] The above embodiments are only used to illustrate the present invention and are not intended to limit the technical solutions described in the present invention. Although the present invention has been described in detail with reference to the above embodiments, the present invention is not limited to the above specific implementation methods. Therefore, any modification or equivalent replacement of the present invention; and all technical solutions and improvements thereof that do not depart from the spirit and scope of the invention are included in the scope of the claims of the present invention.

Claims

1. A filtering device for gas exhaust of a gas boiler, comprising a housing (1), characterized in that: Also includes, A cover plate (4) is detachably mounted on one side of the housing (1), and a hinge (5) connected to the housing (1) is mounted on the bottom end of the cover plate (4), and a fixing bolt (3) is mounted on the top end of the cover plate (4); A cooling structure (6) is arranged on the other side of the housing (1), and an air intake pipe (7) is arranged on one side of the cooling structure (6); An exhaust hole (2) is provided at the top end of the housing (1); and an ash discharge port (12) is provided at the bottom end of the housing (1); A movable seat (11) is fixed on both sides of the interior of the housing (1), and a movable block (8) is slidably disposed inside the movable seat (11), and a filter plate (10) is fixed on one side of the movable block (8); A cleaning structure (9) is arranged on one side of the housing (1), wherein the cleaning structure (9) comprises a connecting rod (909) fixed inside the housing (1), a cover shell (904) installed on one side of the connecting rod (909), a connecting shaft (906) inserted at the top end inside the cover shell (904), a brush (907) fixed at the top end of the connecting shaft (906), and a transmission assembly arranged inside the cover shell (904).

2. A filtering device for gas boiler gas emission according to claim 1, characterized in that: The transmission assembly comprises an electric telescopic rod (903) fixed to the bottom end inside the housing (904), a first bevel gear (905) rotatably connected to the top end of the electric telescopic rod (903) and connected to a connecting shaft (906), a transmission rod (902) inserted inside a connecting rod (909), a second bevel gear (908) fixed to one side of the transmission rod (902) and meshing with the first bevel gear (905), and a motor (901) connected to the other side of the transmission rod (902).

3. A filtering device for gas boiler gas emission according to claim 2, characterized in that: A ball bearing is installed at the connection position between the first bevel gear (905) and the electric telescopic rod (903), and a rotating structure is formed between the connecting shaft (906) and the cover shell (904).

4. A filtering device for gas boiler gas emission according to claim 2, characterized in that: The connecting rod (909) and the housing (1) are welded into an integrated structure, and the transmission rod (902) extends to the outside of the housing (1) and is connected to the motor (901).

5. The filtering device for gas exhaust of a gas boiler according to claim 1, characterized in that: The cooling structure (6) comprises a box body (601) fixed to one side of the housing (1), a solenoid valve (603) installed at the bottom of the box body (601), a water pump (607) fixed to the top of the solenoid valve (603), a spray pipe (606) connected to one side of the water pump (607), a spray head (605) fixed to the bottom of the spray pipe (606), an inclined plate (604) fixed inside the box body (601), and a water suction pipe (602) installed on one side of the water pump (607).

6. A filtering device for gas boiler gas emission according to claim 5, characterized in that: A plurality of groups of inclined plates (604) are fixed inside the box body (601), and the plurality of groups of inclined plates (604) are distributed at equal intervals inside the box body (601).

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