High-stability hot induced draft fan

Abstract

The utility model discloses a hot induced draft fan with high stability, which belongs to the technical field of induced draft fans and comprises a casing mechanism and a filter mechanism, an induced draft mechanism for providing power and conveying air is mounted on the casing mechanism, a connecting cover mechanism for connecting components is further mounted on the casing mechanism, and the filter mechanism is mounted on the casing mechanism. And a reverse blowing mechanism is mounted on the connecting cover mechanism. According to the utility model, through the arrangement of the casing mechanism and the air inducing mechanism and the application of temperature-resistant materials and heat-insulating materials, the heat resistance of each part of the device is improved, heat can be effectively prevented from being conducted to the motor, and the heat resistance of the device is further improved; through the arrangement of the connecting cover mechanism, the back flushing mechanism and the filtering mechanism, the filtering mechanism can effectively filter dust in gas, so that the stability of the device is improved, and the filtering mechanism can be conveniently cleaned through the back flushing mechanism when the filtering mechanism is saturated.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of induced draft fan, especially to a high-stability hot induced draft fan. BACKGROUND

[0002] The induced draft fan is a device for guiding gas. It generates negative pressure through impeller rotation to extract gas (such as waste gas, hot air, etc.) from one space, playing a key role in ventilation, smoke exhaust, dust exhaust, etc.

[0003] The existing induced draft fan is composed of a motor, a shell and an impeller. Its structure is relatively simple. Although it has the function of inducing air, the motor directly contacts the shell, and the contact part is not heat-insulated. Therefore, when the existing induced draft fan is used to exhaust hot air flow, the heat in the hot air flow is easily conducted to the motor, which makes the motor prone to high temperature, reduces the service life of the motor, and the existing induced draft fan does not have a filter mechanism for easy cleaning. When the induced draft fan is running, a large amount of dust is easily accumulated on the impeller, which reduces the efficiency of the fan, affects the balance of the impeller, and further affects the stability of the induced draft fan.

[0004] Therefore, it is urgent to provide a high-stability hot induced draft fan to solve the above problems. UTILITY MODEL CONTENTS

[0005] The utility model solves the technical problem of overcoming the above-mentioned shortcomings of the prior art and provides a high-stability hot induced draft fan.

[0006] To solve the above technical problems, one technical solution of the utility model is to provide a high-stability hot induced draft fan, which comprises a shell mechanism and a filter mechanism. The shell mechanism is installed with an induced draft mechanism for providing power and conveying air. The shell mechanism is also installed with a connecting cover mechanism for connecting components.

[0007] The connecting cover mechanism is installed with a backflush mechanism.

[0008] The connecting cover mechanism is also installed with a filter mechanism for filtering dust and other impurities in the gas.

[0009] The utility model is further provided as follows: the shell mechanism comprises a shell. One side of the shell is fixed with a threaded interface. The other side of the shell is fixed with a heat-insulating mounting rack. Two connecting ears are arranged on the heat-insulating mounting rack.

[0010] Through the above technical solution, the shell and the threaded interface are made of stainless steel, which is resistant to heat and corrosion. The heat-insulating mounting rack and the connecting ears are made of heat-insulating materials such as aluminum oxide ceramic or silicon nitride ceramic, which have heat-insulating and temperature-resistant properties.

[0011] The utility model further sets up: the air leading mechanism includes the motor of installing on the heat insulation mounting bracket, be provided with two mounting lug on the motor, the inboard of mounting lug is provided with mounting bolt.

[0012] Through the above technical scheme, the motor can be fixed on the heat insulation mounting bracket through the mounting lug and the mounting bolt, the motor is the high temperature resistant motor, it has good heat resistance, the heat insulation mounting bracket can prevent the heat in the hot air current from being conducted to the motor through the shell, and the heat resistance of the device is further improved.

[0013] The utility model further sets up: the output shaft of motor is connected with the heat insulation rotating shaft, the other end of heat insulation rotating shaft is fixed with the air leading impeller.

[0014] Through the above technical scheme, the heat insulation rotating shaft is also of alumina ceramic or silicon nitride ceramic material, which also has good heat insulation performance, can effectively prevent the heat in the hot air current from being conducted to the motor through the air leading impeller and the heat insulation rotating shaft, when the motor starts, the motor drives the heat insulation rotating shaft and the air leading impeller to rotate, the air leading impeller can suck the airflow from one side of the connecting cover mechanism into the shell and discharge from the air outlet of the shell.

[0015] The utility model further sets up: the connecting cover mechanism includes the cover body that is connected in screw thread on the threaded interface, the other side of cover body is provided with the connecting socket, four clamps are fixed on the connecting socket.

[0016] Through the above technical scheme, the cover body and the threaded interface are screw connected, so it is convenient to disassemble, four clamps are equidistantly distributed in ring shape around the central axis of the connecting socket, and the cover body is of heat insulation ceramic material.

[0017] The utility model further sets up: the back flushing mechanism includes the compressed gas tank of installing on the cover body, the compressor is installed on the compressed gas tank, the bottom of compressed gas tank is installed with the electronic valve, the electronic valve is connected with back flushing pipe, a plurality of back flushing air outlets are formed in the back flushing pipe.

[0018] Through the above technical scheme, the electronic valve is a high temperature resistant electronic valve, the compressor can compress air and store in the compressed gas tank, there are a plurality of back flushing air outlets, and the electronic valve can be remotely opened, when the electronic valve is opened, the compressed air in the compressed gas tank will enter the back flushing pipe and be sprayed from the back flushing air outlet, thereby back flushing and cleaning the filtering mechanism.

[0019] The utility model further sets up: the filtering mechanism includes the connecting socket of inserting in the inboard of connecting socket, four clamping grooves are formed in the connecting socket, the supporting frame is further fixed on the connecting socket, and the filter screen cover is arranged outside the supporting frame.

[0020] Through the technical scheme, the four clamping grooves on the connecting socket correspond to the four clamping positions on the connecting socket, so that the filtering mechanism can be firmly inserted and clamped on the connecting cover mechanism, the filtering cover is made of stainless steel material, which can effectively intercept dust, ash and other impurities in the airflow, thereby avoiding the accumulation of dust on the induced draft impeller to affect the balance and rotation rate of the induced draft impeller, thereby improving the stability of the device, and the supporting frame can provide support for the filtering cover to avoid deformation of the filtering cover.

[0021] The beneficial effects of the utility model are as follows:

[0022] 1. The utility model discloses a casing mechanism and induced draft mechanism are set up, through the application of heat -resistant material and heat -insulating material, the heat resistance of each component of the device is improved, can also effectively avoid heat conduction to the motor, further improve the heat resistance of the device;

[0023] 2. The utility model discloses a connecting cover mechanism, backflush mechanism and filtering mechanism are set up, filtering mechanism can effectively filter the dust in the gas, thereby improving the stability of the device, through backflush mechanism can be conveniently cleaned filtering mechanism when filtering mechanism saturation. DRAWINGS

[0024] Figure 1 It is the three-dimensional structure diagram of the utility model;

[0025] Figure 2 It is the casing mechanism structure diagram of the utility model;

[0026] Figure 3 It is the induced draft mechanism structure diagram of the utility model;

[0027] Figure 4 It is the connecting cover mechanism and backflush mechanism structure diagram of the utility model;

[0028] Figure 5 It is the filtering mechanism structure diagram of the utility model.

[0029] In the drawing: 1, casing mechanism;101, shell;102, threaded interface;103, heat insulation mounting frame;104, connecting lug;2, induced draft mechanism;201, motor;202, mounting lug;203, mounting bolt;204, heat insulation rotating shaft;205, induced draft impeller;3, connecting cover mechanism;301, cover body;302, connecting socket;303, clamping;4, backflush mechanism;401, compressed gas tank;402, compressor;403, electronic valve;404, backflush pipe;405, backflush air port;5, filtering mechanism;501, connecting socket;502, clamping groove;503, supporting frame;504, filtering cover. DETAILED DESCRIPTION

[0030] The advantages and features of the present application will be more apparent from the following detailed description of preferred embodiments of the present application, taken in conjunction with the accompanying drawings, in which:

[0031] Please refer to Figures 1-5 A high-stability hot air blower, comprising a casing mechanism 1 and a filtering mechanism 5, the casing mechanism 1 comprising a casing 101, one side of the casing 101 being fixed with a threaded interface 102, the other side of the casing 101 being fixed with a heat insulation mounting frame 103, two connecting ears 104 being arranged on the heat insulation mounting frame 103, the casing 101 and the threaded interface 102 being made of stainless steel, which is good in heat resistance and not easy to be corroded, the heat insulation mounting frame 103 and the connecting ears 104 being made of heat insulation materials such as alumina ceramic or silicon nitride ceramic, which are good in heat insulation and temperature resistance.

[0032] As shown in Figure 1 and Figure 3 , the casing mechanism 1 is installed with an air blower mechanism 2 for providing power and conveying air, the air blower mechanism 2 comprising a motor 201 installed on the heat insulation mounting frame 103, two mounting ears 202 being arranged on the motor 201, mounting bolts 203 being arranged on the inner sides of the mounting ears 202, an adiabatic rotating shaft 204 being connected to the output shaft of the motor 201, an air blower impeller 205 being fixed to the other end of the adiabatic rotating shaft 204, the motor 201 being able to be fixed on the heat insulation mounting frame 103 through the mounting ears 202 and the mounting bolts 203, the motor 201 being a high-temperature-resistant motor 201, which is good in heat resistance by itself, the heat insulation mounting frame 103 being able to prevent the heat in the hot air flow from being conducted to the motor 201 through the casing 101, further improving the heat resistance of the device, the adiabatic rotating shaft 204 also being made of alumina ceramic or silicon nitride ceramic, which is also good in heat insulation, and is able to effectively prevent the heat in the hot air flow from being conducted to the motor 201 through the air blower impeller 205 and the adiabatic rotating shaft 204, when the motor 201 is started, the motor 201 drives the adiabatic rotating shaft 204 and the air blower impeller 205 to rotate, the air blower impeller 205 being able to draw the air flow from one side of the connecting cover mechanism 3 into the casing 101 and discharge it from the air outlet of the casing 101.

[0033] As shown in Figure 1 and Figure 4As shown, the casing mechanism 1 is also provided with a connecting cover mechanism 3 for connecting components, the connecting cover mechanism 3 comprises a cover body 301 screwed on the threaded interface 102, the other side of the cover body 301 is provided with a connecting socket 302, four clamps 303 are fixed on the connecting socket 302, the cover body 301 is screwed on the threaded interface 102, so that it is convenient to disassemble, the four clamps 303 are equidistantly and annularly distributed around the central axis of the connecting socket 302, the cover body 301 is made of heat-insulating ceramic material, the connecting cover mechanism 3 is provided with a back blowing mechanism 4, the back blowing mechanism 4 comprises a compressed gas tank 401 mounted on the cover body 301, the compressed gas tank 401 is provided with a compressor 402, the electronic valve 403 is a high-temperature-resistant electronic valve 403, the bottom end of the compressed gas tank 401 is provided with the electronic valve 403, the electronic valve 403 is connected with a back blowing pipe 404, a plurality of back blowing air outlets 405 are formed in the back blowing pipe 404, the compressor 402 can compress air and store it in the compressed gas tank 401, the back blowing air outlets 405 are provided in plurality, the electronic valve 403 can be remotely controlled to be opened, when the electronic valve 403 is opened, the compressed air in the compressed gas tank 401 enters the back blowing pipe 404 and is sprayed from the back blowing air outlets 405, so that the filtering mechanism 5 is back blown and cleaned.

[0034] As shown in Figure 1 and Figure 5 As shown, the connecting cover mechanism 3 is also provided with a filtering mechanism 5 for filtering dust and other impurities in the gas, the filtering mechanism 5 comprises a connecting socket 501 inserted into the inner side of the connecting socket 302, the connecting socket 501 is provided with four clamping grooves 502, the connecting socket 302 is also provided with a support frame 503, the outer side of the support frame 503 is provided with a filter screen cover 504, the four clamping grooves 502 on the connecting socket 501 correspond to the four clamps 303 on the connecting socket 302, so that the filtering mechanism 5 can be firmly inserted and clamped on the connecting cover mechanism 3, the filter screen cover 504 is made of stainless steel, which can effectively intercept dust, ash and other impurities in the airflow, so as to avoid the accumulation of dust on the induced draft fan 205 and affect the balance and rotation rate of the induced draft fan 205, thereby improving the stability of the device, and the support frame 503 can provide support for the filter screen cover 504 to avoid deformation of the filter screen cover 504.

[0035] In use, the device can be applied to occasions requiring exhaust hot gas flow, such as boiler systems, drying equipment or reaction furnaces, the motor 201 can drive the induced draft fan 205 to rotate and induce draft, so as to exhaust and discharge hot gas, the heat-insulating mounting frame 103 and the heat-insulating rotating shaft 204 effectively improve the heat resistance of the device, and the filtering mechanism 5 can filter dust, debris and other impurities in high-temperature gas, when the filtering mechanism 5 is saturated, the user can remotely control the back blowing mechanism 4 to back blow and clean the filtering mechanism 5.

[0036] The above are only embodiments of the present application, and do not limit the patent scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A high stability heat induced air blower comprising a casing mechanism (1) and a filtering mechanism (5), characterized in that: The shell mechanism (1) is provided with an air guide mechanism (2) for providing power and conveying air, and is also provided with a connecting cover mechanism (3) for connecting components; The connecting cover mechanism (3) is provided with a back blowing mechanism (4); The connecting cover mechanism (3) is also provided with a filtering mechanism (5) for filtering dust and other impurities in the gas.

2. A high-stability heat-induced fan according to claim 1, characterized in that: The shell mechanism (1) comprises a shell (101), one side of the shell (101) is fixed with a threaded interface (102), the other side of the shell (101) is fixed with a heat insulation mounting rack (103), and the heat insulation mounting rack (103) is provided with two connecting ears (104).

3. A high-stability heat-induced fan according to claim 2, characterized in that: The air guide mechanism (2) comprises a motor (201) mounted on the heat insulation mounting rack (103), the motor (201) is provided with two mounting ears (202), and the inner side of the mounting ear (202) is provided with a mounting bolt (203).

4. A high-stability heat-induced fan according to claim 3, characterized in that: The output shaft of the motor (201) is connected with an adiabatic rotating shaft (204), and the other end of the adiabatic rotating shaft (204) is fixed with an air guide impeller (205).

5. A high-stability heat-induced fan according to claim 2, characterized in that: The connecting cover mechanism (3) comprises a cover body (301) screwed on the threaded interface (102), the other side of the cover body (301) is provided with a connecting socket (302), and the connecting socket (302) is fixed with four clamps (303).

6. A high-stability heat-induced fan according to claim 5, characterized in that: The back blowing mechanism (4) comprises a compressed gas tank (401) mounted on the cover body (301), the compressed gas tank (401) is provided with a compressor (402), the bottom end of the compressed gas tank (401) is provided with an electronic valve (403), the electronic valve (403) is connected with a back blowing pipe (404), and a plurality of back blowing air outlets (405) are formed in the back blowing pipe (404).

7. The high-stability hot air guide machine according to claim 5, wherein: The filtering mechanism (5) comprises a connecting socket (501) inserted into the inner side of the connecting socket (302), the connecting socket (501) is provided with four clamping grooves (502), and the connecting socket (302) is also fixed with a supporting frame (503), and the outer side of the supporting frame (503) is provided with a filter screen cover (504).

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