Magnetic suspension blower based on recycling of backflow flue gas

Abstract

The application discloses a kind of based on return flow flue gas recycling's magnetic suspension blower, comprising: corridor air inlet module, pneumatic assembly module, venting exhaust module and man-machine interaction module;Corridor air inlet module is equipped with main air intake silencing group between main air intake side of pneumatic assembly module, and pneumatic assembly module is elastically connected by dividing unit and cabinet, venting exhaust module is set on the top of pneumatic assembly module, and man-machine interaction module is set on electrical door;First chamber is left between corridor air inlet module and main air intake silencing group;Second chamber is left between motor air cooling silencing group and electrical silencing group that are sequentially arranged from the side of air cooling fan of pneumatic assembly module;Third chamber is left below pneumatic assembly module;Pneumatic assembly module silencing chamber is formed by first, second, third chamber, and natural gas from natural gas inlet and flue gas from flue gas inlet can be flow distribution and recycling utilization.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of air blower flue gas treatment, and particularly relates to a magnetic suspension air blower based on backflow flue gas recycling. BACKGROUND

[0002] The air blower with flue gas backflow recycling is used to suck part of the dust-removed flue gas into the air blower through the air inlet end of the air blower, form high-pressure gas after the air blower, and discharge the high-pressure gas into the pipe network to drive the air system and into the lime cooling air system. The oxygen content in the flue gas is low, so that the oxygen concentration in the combustion zone can be reduced to inhibit the generation of nitrogen oxides. At present, the main connection mode is to rigidly connect the backflow flue gas pipeline with the air inlet of the air blower, and the flue gas directly enters the inside of the air blower. Because the backflow flue gas contains many impurities, carries ash and even iron filings, and the flue gas exchanges heat with the pipeline during the recycling process to generate condensate water, etc., the ash, iron filings and condensate water respectively cause the dynamic balance of the rotating parts to be unbalanced, cause wear and corrosion, and cannot guarantee the long-term stable operation of the air blower; some places add dust filters, water filters and residue filters in the pipeline, but because of the rigid connection, the production needs to be stopped to complete the maintenance or replacement, causing huge economic losses; at the same time, when the flue gas amount is excessive or insufficient, the flue gas amount cannot be adjusted or air is taken from the atmosphere, causing energy waste or insufficient air use, causing the flue gas index to exceed the standard, causing air pollution.

[0003] Mechanical noise is generated during the operation of the air blower, and through the rigidly connected pipeline, an acoustic bridge is generated to spread high-frequency and high-intensity noise to the environment, causing sound pollution; the existing equipment wraps the air blower by setting a sound insulation device to reduce noise to a certain extent, but still cannot change the acoustic bridge noise propagation caused by the rigid connection, and at the same time, the sound insulation cover causes the heat of the main machine to be unable to dissipate, reducing the reliability and stability of the air blower. SUMMARY

[0004] The present application provides a magnetic suspension air blower based on backflow flue gas recycling, which distributes and recycles the flow of the gas entering the air blower by setting a chamber space between structures.

[0005] In order to achieve the above-mentioned purpose, the technical scheme of the present application is:

[0006] A kind of magnetic suspension blower based on backflow flue gas recycling, comprising: corridor air inlet module, pneumatic assembly module, venting exhaust module and man-machine interaction module;The corridor air inlet module is arranged at the one end of the base of box shell, the other end of the base is equipped with electrical positive door, the electrical positive door is equipped with man-machine interaction module, and the second natural air inlet is equipped below the electrical positive door;The pneumatic assembly module is arranged between the corridor air inlet module and the electrical positive door, the venting exhaust module is arranged above the pneumatic assembly module, and the main air inlet silencing group is arranged between the pneumatic assembly module and the corridor air inlet module, and the first cooling air inlet is arranged above the main air inlet silencing group;

[0007] The air inlet door is arranged outside the corridor air inlet module, and the first chamber is arranged between the air inlet door and the main air inlet silencing group;The motor air-cooled silencing group and the electrical silencing group are arranged between the pneumatic assembly module and the electrical positive door, and the second chamber is arranged between the motor air-cooled silencing group and the electrical silencing group;The third chamber is arranged between the main air inlet silencing group and the motor air-cooled silencing group, and between the pneumatic assembly module and the base;

[0008] The first natural air inlet is arranged on the upper portion of the air inlet door, and the first flue gas inlet is arranged on the lower portion;The natural air entering from the first natural air inlet and the flue gas entering from the first flue gas inlet can enter the main machine room in sequence through the first chamber and the first cooling air inlet;

[0009] The second cooling air inlet is arranged on the top of the electrical silencing group, and the natural air entering from the second natural air inlet can enter the main machine room in sequence through the second cooling air inlet, the second chamber, the third cooling air inlet, the third chamber and the motor cooling air inlet for cooling.

[0010] Further, the pneumatic assembly module comprises: a fixed unit, a pneumatic unit, an air inlet unit and an air outlet unit;

[0011] The fixed unit comprises: a layered plate, a fan fixing seat and a fan mounting seat, the layered plate is fixed on the base of the cabinet body, and a mounting hole is formed in the middle of the layered plate, the fan mounting seat is arranged on the layered plate, a motor cooling air inlet is arranged on one side of the layered plate, the fan fixing seat passes through the fan mounting seat and the layered plate in sequence, and is elastically connected with the mounting hole through the side bubble clamping groove adhesive tape arranged on the side wall of the mounting hole, and the bottom surface of the fan fixing seat is elastically connected with the base through the fixing seat damping pad arranged on the base;

[0012] The pneumatic unit comprises: a motor wind cooling collecting pipe, a motor wind cooling outlet pipe and a motor body; the motor wind cooling collecting pipe is arranged around the shell of the motor body and is connected to the inside of the motor body at one end and is open downward at the other end; one end of the motor wind cooling outlet pipe is connected to the pipe body of the motor wind cooling collecting pipe and the other end extends upward and is connected to the venting and exhaust module; the motor wind cooling outlet pipe is a non-metal flexible pipe to achieve elastic connection with the venting and exhaust module;

[0013] The air inlet unit comprises: an air inlet cylinder and a top bubble clamping groove rubber strip; one end of the air inlet cylinder is rigidly connected to the motor body and the other end is sequentially welded with a circular plate and an arc plate, the top bubble clamping groove rubber strip is arranged on the arc plate and is elastically connected to the main air inlet silencer group;

[0014] The air outlet unit comprises: a groove clamp, a first air outlet cylinder and an air outlet sealing gasket; the first air outlet cylinder is elastically connected to the motor body through the rubber sealing element arranged on the groove clamp; the first air outlet cylinder is elastically connected to the air outlet top cover and the second air outlet cylinder through bolts, the side surface of the first air outlet cylinder is welded with a venting valve, the other end of the venting valve is elastically connected to the cabinet through a flexible rubber joint; the outer diameter of the second air outlet cylinder is smaller than the inner diameter of the air outlet top cover.

[0015] Further, the gallery air inlet module further comprises: a flue gas filtering device and a flue gas air inlet tank; the flue gas filtering device is arranged between the flue gas air inlet tank and the first flue gas inlet and comprises: a frame, a filter fixing frame, a filter mounting sealing plate, guide rails, primary efficiency filter cotton and medium efficiency filters; the frame is movably connected to the filter mounting sealing plate, the filter fixing frame is mounted inside the frame, guide rails are arranged on both sides of the filter fixing frame, guide rail grooves matching the guide rails are arranged on both sides of the inside of the frame, and the medium efficiency filters and the primary efficiency filter cotton are respectively mounted on the front and back surfaces of the filter fixing frame.

[0016] Further, the guide rail is a three-section sliding rail, the upper section of the guide rail is fixedly connected to the frame through fasteners, the lower section of the guide rail is fixedly connected to the filter fixing frame through fasteners, and the upper section guide rail is connected to the lower section guide rail through the middle section guide rail.

[0017] Further, the flue gas inlet tank comprises: an inlet tank frame, an inlet tank access door, a waste collection tank, a flue gas regulating valve, an inlet tank channel and an inlet tank filter; one side of the inlet tank frame is provided with an inlet tank access door with a switch, the inside is provided with the inlet tank filter and the inlet tank channel, one end of the inlet tank channel is fixedly connected with the inlet tank filter, the other end of the inlet tank channel extends out of the flue gas inlet tank for air intake, and the top of the inlet tank channel is provided with the flue gas regulating valve; the bottom surface of the inside of the inlet tank frame is provided with a waste collection port, the waste collection port is connected with the waste collection tank below, one side of the waste collection tank is downwardly inclined and provided with a waste collection access door, and the bottom of the waste collection tank is provided with a drain port.

[0018] Further, the inlet door comprises: a sealing plate, a sound insulation layer and a door frame, the sound insulation layer is installed between the sealing plate and the door frame; the sound insulation layer comprises: a sound absorption plate, sound absorption cotton and a damping sound insulation felt, the sound absorption cotton is filled between the sound absorption plate and the damping sound insulation felt.

[0019] Further, the sound insulation structure inside the main inlet sound insulation group, the motor air cooling sound insulation group and the electrical sound insulation group is the same as the sound insulation layer structure inside the inlet door.

[0020] Further, the venting exhaust module further comprises a variable frequency air outlet cylinder; the variable frequency air outlet cylinder is arranged above the electrical sound insulation group in parallel with the second cooling air inlet and is connected with the venting tank, and the venting air outlet cylinder and an electrical axial flow fan are further arranged on the air outlet top cover of the top of the venting tank.

[0021] Further, the human-computer interaction module comprises: a variable frequency current collection tank, a frequency converter and a touch screen; the variable frequency current collection tank is arranged in the second chamber, the horizontal opening of the variable frequency current collection tank is connected with the variable frequency air outlet cylinder above the electrical sound insulation group, and the vertical opening of the variable frequency current collection tank is connected with the frequency converter below; the natural air inlet pressure difference sensor is arranged above in the first chamber, and the flue gas inlet pressure difference sensor is arranged below; the touch screen is arranged on the electrical access door and is connected with the frequency converter and the pressure difference sensor through an electrical circuit.

[0022] Beneficial effects: the application provides a magnetic suspension blower based on flue gas backflow recycling, which realizes the flow distribution and recycling of flue gas and natural air by arranging chambers between internal structures and adjusting inlet valves. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are some embodiments of the present application, and other drawings can also be obtained by those skilled in the art without creative labor.

[0024] Figure 1 The overall structure diagram of the magnetic suspension blower of the present application;

[0025] Figure 2 The four-module schematic diagram of the blower of the present application;

[0026] Figure 3 The three-chamber schematic diagram of the blower of the present application;

[0027] Figure 4 The front air inlet gas path schematic diagram of the blower of the present application;

[0028] Figure 5 The back air inlet gas path schematic diagram of the blower of the present application;

[0029] Figure 6 The four-unit schematic diagram of the pneumatic assembly module of the present application;

[0030] Figure 7 The internal structure diagram of the blower of the present application;

[0031] Figure 8 The internal structure exploded view of the blower of the present application;

[0032] Figure 9 The top bubble clamping groove rubber strip elastic connection diagram of the present application;

[0033] Figure 10 The side bubble clamping groove rubber strip elastic connection diagram of the present application;

[0034] Figure 11 The fixed seat shock pad elastic connection diagram of the present application;

[0035] Figure 12 The flue gas filtering device structure diagram of the present application;

[0036] Figure 13 The step schematic diagram of replacing the flue gas filtering device;

[0037] Figure 14 The flue gas inlet tank structure diagram of the present application;

[0038] Figure 15 The air inlet valve sound attenuation structure schematic diagram of the present application;

[0039] Figure 16 The venting exhaust module structure diagram of the present application;

[0040] Figure 17 The structure diagram of the venting tank in the prior art;

[0041] Figure 18 The structure diagram of the venting exhaust pipe in the prior art;

[0042] Figure 19 Figure 1 is a schematic diagram of the air path inside the emptying box;

[0043] In the figure: 1, gallery air inlet module; 11, air inlet; 111, sealing plate; 112, sound insulation layer; 113, door frame; 1121, sound absorbing board; 1122, sound absorbing cotton; 1123, damping sound insulation felt; 1131, first natural air inlet; 1132, first flue gas inlet; 12, flue gas filtering device; 121, frame; 122, filter fixing frame; 123, filter mounting sealing plate; 124, guide rail; 125, primary filter cotton; 126, medium efficiency filter; 13, flue gas air inlet box; 131, air inlet box frame; 132, air inlet box maintenance door; 133, waste collection port; 134, waste collection box; 1341, waste collection maintenance door; 1342, drainage port; 135, flue gas regulating valve; 136, air inlet box channel; 137, air inlet box filter; 14, main air inlet silencing group; 141, first cooling air inlet; 142, second flue gas inlet; 2, pneumatic assembly module; 21, fixed unit; 211, layered plate; 2111, motor cooling air inlet; 212, fixed seat damping pad; 213, fan fixed seat; 214, side bubble clamping groove rubber strip; 215, fan mounting seat; 22, pneumatic unit; 221, motor air cooling air collection pipe; 222, motor air cooling air outlet pipe; 223, motor body; 23, air inlet unit; 231, air inlet cylinder; 232, top bubble clamping groove rubber strip; 233, arc plate; 234, circular ring plate; 24, air outlet unit; 241, groove clamp; 2411, rubber sealing element; 242, first air outlet cylinder; 2421, emptying valve; 2422, flexible rubber flexible joint; 243, air outlet sealing pad; 25, motor air cooling silencing group; 3, emptying exhaust module; 31, second air outlet cylinder; 32, air outlet top cover; 321, emptying air outlet cylinder; 322, electrical axial flow fan; 33, emptying box; 34, electrical silencing group; 341, second cooling air inlet; 342, variable frequency air outlet cylinder; 343, third cooling air inlet; 4, human-computer interaction module; 41, electrical positive door; 411, second natural air inlet; 42, variable frequency current collection box; 43, frequency converter; 44, touch screen; 5, base; I, first chamber; II, second chamber; III, third chamber. DETAILED DESCRIPTION

[0044] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0045] Example 1

[0046] This embodiment provides a magnetic levitation blower based on the reuse of flue gas, such as... Figure 1 As shown, it includes: a corridor air intake module 1, a pneumatic assembly module 2, an venting and exhaust module 3, and a human-machine interaction module 4;

[0047] The corridor air intake module 1 is located at one end of the base 5 of the housing shell, and the other end of the base 5 is provided with an electrical main door 41. The electrical main door 41 is provided with a human-machine interaction module 4, and a second natural air inlet 411 is provided below the electrical main door 41. The pneumatic assembly module 2 is provided between the corridor air intake module 1 and the electrical main door 41. The venting and exhaust module 3 is provided above the pneumatic assembly module 2. The main air intake silencer group 14 is provided between the pneumatic assembly module 2 and the corridor air intake module 1. A first cooling air inlet 141 is provided above the main air intake silencer group 14.

[0048] An air intake door 11 is provided on the outside of the corridor air intake module 1, and the first chamber I is located between the air intake door 11 and the main air intake muffler group 14.

[0049] Between the pneumatic assembly module 2 and the electrical main door 41, there is a motor air-cooled silencing group 25 and an electrical silencing group 34, and the space between the motor air-cooled silencing group 25 and the electrical silencing group 34 is a second chamber II;

[0050] The third chamber Ⅲ is located between the main intake muffler group 14 and the motor air-cooled muffler group 25, and between the pneumatic assembly module 2 and the base 5.

[0051] The upper part of the air intake 11 is provided with a first natural gas inlet 1131, and the lower part is provided with a first flue gas inlet 1132; the natural gas entering from the first natural gas inlet 1131 and the flue gas entering from the first flue gas inlet 1132 can enter the main unit room through the first chamber I and the first cooling air inlet 141 in sequence.

[0052] The top of the electrical silencing assembly 34 is provided with a second cooling air inlet 341. Natural air entering from the second natural air inlet 441 can sequentially pass through the second cooling air inlet 341, the second chamber II, the third cooling air inlet 343, the third chamber III, and the motor cooling air inlet 2111 to enter the main unit room for cooling.

[0053] Specifically, such as Figure 2 The diagram shown illustrates the positions of the four modules of the blower of this invention. Figure 3The position diagram of three chambers arranged in the air blower is shown; the first chamber I is a space structure composed of the air inlet valve 11 and the main air inlet silencer group 14, located on the side of the pneumatic assembly module 2 close to the corridor air inlet module 1; the second chamber II is a space structure composed of the motor air cooling silencer group 25 and the electrical silencer group 34, located on the side of the pneumatic assembly module 2 close to the electrical positive door 41; the third chamber III is a space structure between the layered plate 211 below the pneumatic assembly module 2 and the base 5, located at the lowermost part of the entire air blower. The first chamber I, the second chamber II and the third chamber III are independent in structure and are not closed, and gas can flow in the air blower through the corresponding air inlets.

[0054] Specifically, when the air blower starts to work, as shown in Figure 4 The position diagram of three chambers arranged in the air blower is shown; the first chamber I is a space structure composed of the air inlet valve 11 and the main air inlet silencer group 14, located on the side of the pneumatic assembly module 2 close to the corridor air inlet module 1; the second chamber II is a space structure composed of the motor air cooling silencer group 25 and the electrical silencer group 34, located on the side of the pneumatic assembly module 2 close to the electrical positive door 41; the third chamber III is a space structure between the layered plate 211 below the pneumatic assembly module 2 and the base 5, located at the lowermost part of the entire air blower. The first chamber I, the second chamber II and the third chamber III are independent in structure and are not closed, and gas can flow in the air blower through the corresponding air inlets.

[0055] When the motor body 223 is in the air suction state, as shown in Figure 4 The smoke gas route from the smoke gas inlet tank 13 is shown in the gas route A, after the smoke gas enters the inlet tank passage 136 outside the smoke gas inlet tank 13, it will be filtered twice by the inlet tank filter 137 and the smoke gas filter device 12, and then enter the first chamber I through the first smoke gas inlet 1132, and then pass through the second smoke gas inlet 142 and the air inlet cylinder 231 to be sucked into the motor body 223, after the smoke gas passes through the turbocharger inside the motor body 223, it is discharged upward, and when it passes through the first air outlet cylinder 242, it will be divided into two parts, one part as shown in Figure 4 The gas route A1, will be directly discharged through the second air outlet cylinder 31 for industrial use, and the other part as shown in Figure 4 The gas route A2, if the air pressure in the machine body exceeds a certain value, the vent valve 2421 needs to be opened, and the other part of the smoke gas will enter the vent tank 33 through the vent valve 2421 and the flexible rubber soft joint 2422, and finally be discharged through the vent air outlet cylinder 321 to achieve pressure relief;

[0056] As shown in Figure 4The natural gas path B shown is the path of natural gas entering from the first natural gas inlet 1131. The natural gas entering from the first natural gas inlet 1131 first enters the first chamber I composed of the air inlet valve 11 and the main air intake muffler group 14, and then the natural gas is also divided into two parts. Due to the strong suction of the motor, most of the natural gas is sucked into the motor body 223 along the gas path B2, and is combined with the gas path A. The other part of the natural gas enters the main machine room through the first cooling air inlet 141 along the gas path B1, cools the internal devices, and the main machine room is composed of the front and rear main air inlet muffler group 14, the motor air cooling muffler group 25, and the fan room side door on both sides, forming a noise reduction cover with suction, sound absorption, and sound insulation.

[0057] Specifically, when the air blower starts to work, as shown in Figure 5 The natural gas entering the air blower from the back is shown in the schematic diagram of the gas path in the air blower when the air blower is working. The process of the natural gas entering the air blower is as follows:

[0058] First, a part of the natural gas entering through the second natural gas inlet 411 cools the frequency converter 43 and the frequency collection box 42 in turn, and then enters the emptying box 33 through the frequency outlet 342, and finally is discharged to the outside through the electrical axial flow fan 322 along the gas path C2. Another part of the natural gas entering from the second natural gas inlet 411 enters the second chamber II through the second cooling air inlet 341, and flows downward along the gas path C1 through the third cooling air inlet 343 into the third chamber III, and then enters the main machine room through the motor cooling air inlet 2111 provided on the layered plate 211. The natural gas entering the main machine room is again divided into two parts. One part is sucked into the motor through the motor air cooling collection pipe 221 along the gas path C3, cools the bearings and windings in the motor, and then enters the emptying box 33 through the motor air cooling outlet pipe 222, and finally is discharged to the outside of the machine body through the electrical axial flow fan 322. The other part flows through the motor body 223 tail, the motor body 223 and the first outlet 242 in the main machine room along the gas path C4, and cools the above-mentioned devices in turn, and finally returns to the air inlet 231 under the suction of the motor, and continues to be used for industrial purposes.

[0059] In this embodiment, by setting multiple chambers and multiple gas paths between structures, the flow of flue gas entering the motor can be controlled and reasonably distributed, ensuring that energy is not wasted and air pollution is prevented. The flow of natural gas entering the cabinet can also be controlled and distributed, achieving the functions of internal machine self-cooling and recycling.

[0060] Embodiment 2

[0061] In this embodiment, as shown in Figure 6The position schematic diagram of four units included in the pneumatic assembly module 2 is shown, and the pneumatic assembly module 2 includes: a fixed unit 21, a pneumatic unit 22, an air inlet unit 23 and an air outlet unit 24;

[0062] Specifically, as shown in the structural diagram of the internal pneumatic assembly module 2 of the air blower, Figure 7 and Figure 8 The fixed unit 21 includes: a layered plate 211, a fan fixing seat 213 and a fan mounting seat 215, the layered plate 211 is fixed on the base 5 of the cabinet body, and a mounting hole is formed in the middle of the layered plate 211, the fan mounting seat 215 is arranged on the layered plate 211, and a motor cooling air inlet 2111 is arranged on one side of the layered plate 211, as shown in Figure 10 The fan fixing seat 213 passes through the fan mounting seat 215 and the layered plate 211 in sequence, and is elastically connected with the mounting hole through the side bubble clamping groove adhesive tape 214 arranged on the side wall of the mounting hole, as shown in Figure 11 The bottom surface of the fan fixing seat 213 is elastically connected with the base 5 through the fixing seat damping pad 212 arranged on the base 5, and at the same time, a sealing effect is achieved, the layered plate 211 is elastically isolated from the vibration source, it is ensured that the vibration source will not cause solid propagation of sound through the main air inlet silencing group 14 and the motor air cooling silencing group 25 which are rigidly connected with the layered plate 211, and noise transmission of mechanical vibration is avoided;

[0063] The pneumatic unit 22 includes: a motor air cooling air collecting pipe 221, a motor air cooling air outlet pipe 222 and a motor body 223; the motor air cooling air collecting pipe 221 is arranged around the outer shell of the motor body 223 and is connected with the inside of the motor body 223 at one end, and is open downward at the other end; one end of the motor air cooling air outlet pipe 222 is connected with the pipe body of the motor air cooling air collecting pipe 221, and the other end extends upward and is connected with the air release and exhaust module 3; the motor air cooling air outlet pipe 222 is a non-metal hose, and the use of the non-metal hose can elastically connect the motor body 223 with the air release and exhaust module 3, so as to achieve the functions of weakening vibration and sound absorption;

[0064] The air inlet unit 23 includes: an air inlet cylinder 231 and a top bubble clamping groove adhesive tape 232; as shown in Figure 9 One end of the air inlet cylinder 231 is rigidly connected with the motor body 223, the other end is sequentially welded with a circular plate 234 and an arc plate 233, the top bubble clamping groove adhesive tape 232 is arranged on the arc plate 233 and is elastically connected with the main air inlet silencing group 14; the air inlet unit 23 realizes the elastic connection between the motor body 223 and the main air inlet silencing group 14 through the top bubble clamping groove adhesive tape 232, so as to achieve the function of weakening vibration;

[0065] The air outlet unit 24 comprises a groove clamp 241, a first air outlet cylinder 242 and an air outlet sealing gasket 243; the first air outlet cylinder 242 is elastically connected with the motor body 223 through a rubber sealing element 2411 arranged on the groove clamp 241; the connection mode of the groove pipe has a unique flexible feature, so that the pipeline has the ability to resist vibration, shrinkage and expansion; compared with welding and flange connection, the stability of the pipeline system is higher, and it is more suitable for temperature changes, protects the pipeline valve and reduces the damage of pipeline stress to the structural member;

[0066] The first air outlet cylinder 242 is elastically connected with the air outlet top cover 32 and the second air outlet cylinder 31 arranged above through bolts; the side surface of the first air outlet cylinder 242 is welded with a vent valve 2421; the other end of the vent valve 2421 is elastically connected with the cabinet through a flexible rubber soft joint 2422; the outer diameter of the second air outlet cylinder 31 is smaller than the inner diameter of the air outlet top cover 32, which is used for pipeline vibration isolation, noise reduction and displacement compensation;

[0067] In this embodiment, the entire pneumatic assembly module 2 is divided into multiple units, and each unit is elastically connected with the cabinet or other devices in the cabinet; while avoiding the sound bridge noise propagation caused by rigid connection, the vibration of the entire magnetic suspension air blower during operation is also weakened, so that the working state of the air blower is more stable and the service life is longer.

[0068] Embodiment 3

[0069] In this embodiment, the gallery air inlet module 1 further comprises a flue gas filtering device 12 and a flue gas inlet tank 13.

[0070] The flue gas filtering device 12 is arranged between the flue gas inlet tank 13 and the first flue gas inlet 1132, and comprises a frame 121, a filtering fixing frame 122, a filter mounting sealing plate 123, a guide rail 124, primary efficiency filter cotton 125 and a medium efficiency filter 126; the frame 121 is movably connected with the filter mounting sealing plate 123; the filtering fixing frame 122 is arranged inside the frame 121; the guide rails 124 are arranged on both sides of the filtering fixing frame 122; the guide rail grooves matched with the guide rails 124 are arranged on both sides of the frame 121; the medium efficiency filter 126 and the primary efficiency filter cotton 125 are respectively arranged on the front and back surfaces of the filtering fixing frame 122; the filter mounting sealing plate 133 and the medium efficiency filter 126 are both provided with sealing rubber strips to realize sealing, thereby solving the problem of unstable fixation and easy falling off caused by the gap generated by the guide rail 134;

[0071] The guide rail 124 adopts three-section sliding rails; the upper section of the guide rail 124 is fixedly connected with the frame 121 through fasteners; the lower section of the guide rail 124 is fixedly connected with the filtering fixing frame 122 through fasteners; the upper section guide rail 124 is connected with the lower section guide rail 124 through the middle section guide rail 124.

[0072] The flue gas inlet box 13 comprises: an inlet box frame 131, an inlet box access door 132, a waste collection box 134, a flue gas regulating valve 135, an inlet box channel 136 and an inlet box filter 137;

[0073] One side of the inlet box frame 131 is provided with an inlet box access door 132 with a switch, and the inside is provided with the inlet box filter 137 and the inlet box channel 136. One end of the inlet box channel 136 is fixedly connected with the inlet box filter 137, and the other end extends out of the flue gas inlet box 13 for air intake. The top of the inlet box channel 136 is provided with the flue gas regulating valve 135. The bottom surface inside the inlet box frame 131 is provided with a waste collection port 133. The waste collection box 134 is connected below the waste collection port 133. One side of the waste collection box 134 is downwardly inclined and provided with a waste collection access door 1341. The bottom of the waste collection box 134 is provided with a drain port 1342.

[0074] Specifically, as shown in Figure 12 The outer shell of the flue gas filtering device 12 is sealed by the frame 121 and the filter mounting sealing plate 123. The sealing mode is to be movably connected through hinges and the like connecting members for facilitating installation and disassembly. The frame 121 is provided with guide rail grooves on both sides inside the frame 121. The filter fixing frame 122 is installed through the guide rail 124. One side of the filter fixing frame 122 is a concave surface, which is embedded and installed with the medium-efficiency filter 126. The back of the filter fixing frame 122 is attached with the primary-efficiency filter cotton 125. The two sides of the filter mounting sealing plate 123 are sealed by sealing rubber strips to achieve sealing. The two sides of the medium-efficiency filter 126 are sealed by sealing rubber strips to achieve sealing connection with the filter fixing frame 122.

[0075] In this embodiment, the guide rail 124 adopts three-section sliding rails. The upper section is fixedly connected with the frame 121 through fasteners. The lower section is fixedly connected with the filter fixing frame 122 through fasteners. The upper and lower section guide rails are connected through the middle section guide rail to realize pulling and drawing. The device can replace the gallery inlet filter without stopping the machine and being affected by high pressure and high flow.

[0076] Specifically, when the magnetic suspension blower needs to replace the primary-efficiency filter cotton 125 and the medium-efficiency filter 126 during operation, as shown in Figure 13 The steps include:

[0077] S1, the fasteners on the filter mounting sealing plate 123 are disassembled, the filter mounting sealing plate 123 is opened and disassembled;

[0078] S2, due to high pressure and high flow during operation, the medium-efficiency filter 126 cannot be directly pulled out, and the filter fixing frame 122 needs to be pulled out by pulling the handle on the filter fixing frame 122 by hand;

[0079] S3, pull out, extract the medium filter 126, take out the primary filter cotton 125, and replace the new primary filter cotton 125, medium filter 126 in turn;

[0080] S4, push the filter fixing frame 122 back into the frame 121, and install the filter mounting cover plate 123, and tighten the fasteners.

[0081] Specifically, as shown in Figure 14 the length of the waste collecting port 133 and the waste collecting box 134 is slightly smaller than the width of the bottom surface of the flue gas inlet box 13, the inclination angle of the downwardly inclined side of the waste collecting box 134 ranges from 10° to 80°, and the drain port 1342 is arranged on the bottom surface of the downwardly inclined side of the waste collecting box 134.

[0082] Specifically, during maintenance, the waste collecting maintenance door 1341 is opened, and the interior is cleaned through the waste dust maintenance port arranged on the side of the waste collecting box 134, and liquid can be discharged through the drain port 1342 arranged at the bottom of the waste collecting box 134; when the entire flue gas inlet box 13 needs to be maintained and replaced due to severe blockage, the steps are as follows:

[0083] A1, close the flue gas regulating valve 135 at the top end of the inlet box channel 136, and open the inlet box maintenance door 132;

[0084] A2, according to the steps S1 to S4, replace the medium filter 126 in step S3 with a board material of the same size but without ventilation, such as wood, rubber board, etc., and install it into the filter fixing frame 122; this step ensures that the flue gas no longer enters the flue gas inlet box 13, and at this time, the air inlet of the blower is completely completed through the first natural air inlet 1131 and the second natural air inlet 411, so that the back side of the inlet box filter 137 is not under negative pressure;

[0085] A3, clean the inlet box filter 137 and reinstall it between the flue gas inlet box 13 and the first flue gas inlet 1132;

[0086] A4, close the inlet box maintenance door 132.

[0087] Example 4

[0088] In this embodiment, as shown in Figure 15 the inlet door 11 comprises a cover plate 111, a sound insulation layer 112 and a door frame 113, the sound insulation layer 112 is installed between the cover plate 111 and the door frame 113; the sound insulation layer 112 comprises a sound absorbing plate 1121, sound absorbing cotton 1122 and a damping sound insulation felt 1123, the sound absorbing cotton 1122 is filled between the sound absorbing plate 1121 and the damping sound insulation felt 1123.

[0089] Specifically, the constituent structure of the air inlet door 11 is sequentially arranged from outside to inside as a door frame 113, a damping sound insulation felt 1123, sound absorbing cotton 1122, a sound absorbing board 1121, and a sealing plate 111; wherein the sound absorbing cotton 1122 has the smallest size and is clamped between the damping sound insulation felt 1123 and the sound absorbing board 1121, and the sizes of the damping sound insulation felt 1123 and the sound absorbing board 1121 are smaller than those of the sealing plate 111 and the door frame 113, so that the sound insulation layer 112 is clamped in the space jointed by the sealing plate 111 and the door frame 113. The noise generated inside the air blower cabinet will be subjected to three times of sound absorption by the sound absorbing board 1121, the sound absorbing cotton 1122, and the damping sound insulation felt 1123 in sequence, and finally transmitted to the outside through the hole in the door frame 113.

[0090] Specifically, the sound absorbing board 1121 uses a material with sound absorption function made of polyester fiber through hot pressing forming, has high density, and the bulk density is 100-250 kg / m 3 The sound absorption coefficient increases with the increase of the frequency of sound waves, the noise reduction coefficient is 0.8-1.1, the sound absorbing cotton 1122 is filled between the sound absorbing board 1121 and the damping sound insulation felt 1123, and the space sound insulation layer 112 can improve the sound absorption performance of the air inlet door 11.

[0091] Specifically, the sound absorbing cotton 1122 is polyester fiber cotton formed after high-temperature hot pressing, the internal space is in a full-through-hole state, can absorb sound waves, has a sound attenuation effect, reduces the interference and reflection of sound waves inside the equipment, has a sound absorption effect, and has a density of 10 kg / m 3 The above mainly eliminates medium and high frequency sound waves, and the sound absorption channel formed can absorb the transmitted sound waves. The damping sound insulation felt 1123 composed of rubber and fine iron powder is arranged behind the sound absorbing cotton 1122, a closed sound insulation design is formed, the sound passes through the surface of the damping sound insulation felt 1123 after passing through the sound absorbing board 1121 and the sound absorbing cotton 1122, the secondary reflection of the sound is reduced, the standing wave of the sound is reduced, and the sound insulation effect is achieved. The sealing plate is fixed on the door frame 113 by fasteners, the sound absorbing board 1121, the sound absorbing cotton 1122, and the damping sound insulation felt 1123 are clamped in the middle, and the air inlet door 11 is formed. By selecting sound absorbing boards 1121, sound absorbing cottons 1122, and damping sound insulation felts 1123 with different thicknesses and densities, the maximum noise reduction effect on sound waves of different frequencies can be achieved.

[0092] Specifically, in the whole machine body, the main air inlet sound insulation group 14, the motor air cooling sound insulation group 25, the electrical sound insulation group 34, the first air exhaust sound insulation group in the air exhaust box 33, the second air exhaust sound insulation group, and the top cover sound absorbing cotton assembly are six parts of sound insulation structure, which are the same as the sound insulation structure inside the air inlet door 11, only the thickness and density of the materials are different, and the sound insulation groups are arranged in all directions and at multiple angles, so that the sound insulation effect of the whole main machine room and the external connection is better.

[0093] Embodiment 5

[0094] In this embodiment, as shown in Figure 16 The venting exhaust module 3 also includes a variable frequency air outlet cylinder 342.

[0095] Specifically, the variable frequency air outlet cylinder 342 is arranged above the electrical silencing group 34 in parallel with the second cooling air inlet 341 and is connected with the venting tank 33. The venting air outlet cylinder 321 and the electrical axial flow fan 322 are also arranged on the air outlet top cover 32 at the top of the venting tank 33. Figure 17 , Figure 18 As shown in

[0096] Specifically, as shown in Figure 19 The gas sucked by the air inlet cylinder 231 at the front of the motor body 223 will pass through the first air outlet cylinder 242 and be discharged outside the cabinet through the second air outlet cylinder 31 when the venting valve 2421 is closed. When the venting valve 2421 is opened, the gas will be divided after passing through the first air outlet cylinder 242, part of which will be discharged through the second air outlet cylinder 31, and the other part will enter the venting tank 33 along the Figure 19 gas path D2, and finally be discharged outside the cabinet through the venting air outlet cylinder 321, realizing the function of venting and pressure relief. As shown in Figure 19 gas path D1 is the natural gas path of the second natural gas inlet 411, part of which will enter the venting tank 33 through the variable frequency air outlet cylinder 342 and finally be discharged through the electrical axial flow fan 322, realizing the natural gas self-cooling function of the variable frequency device.

[0097] Embodiment 6

[0098] In this embodiment, the human-computer interaction module 4 includes a variable frequency current collection tank 42, a frequency converter 43, and a touch screen 44.

[0099] Specifically, the variable frequency current collection tank 42 is arranged in the second chamber II, and the horizontal opening of the variable frequency current collection tank 42 is connected with the variable frequency air outlet cylinder 342 above the electrical silencing group 34, and the vertical opening of the variable frequency current collection tank 42 is connected with the frequency converter 43 below. The natural air inlet pressure difference sensor is arranged above in the first chamber I, and the flue gas inlet pressure difference sensor is arranged below. The touch screen 44 is arranged on the electrical front door 41 and is connected with the frequency converter 43 and the pressure difference sensor through an electrical circuit.

[0100] Specifically, the natural air inlet pressure difference sensor tests the air pressure difference inside and outside the first natural gas inlet 1131, and the flue gas inlet pressure difference sensor tests the air pressure difference before and after the inlet filter 137, and then displays the values on the touch screen 44, which is convenient for staff to refer to and maintain.

[0101] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present application, and are not intended to limit the present application; although the present application has been described in detail with reference to the above embodiments, those skilled in the art should understand that the technical solutions recorded in the above embodiments can still be modified, or some or all of the technical features can be replaced by equivalents; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the present application.

Claims

1. A magnetic levitation blower based on the reuse of flue gas, characterized in that, include: The corridor air intake module (1), the pneumatic assembly module (2), the venting and exhaust module (3), and the human-machine interaction module (4); The corridor air intake module (1) is located at one end of the base (5) of the housing shell, and the other end of the base (5) is provided with an electrical main door (41). The electrical main door (41) is provided with a human-machine interaction module (4), and a second natural air inlet (411) is provided below the electrical main door (41). The pneumatic assembly module (2) is provided between the corridor air intake module (1) and the electrical main door (41). The venting and exhaust module (3) is provided above the pneumatic assembly module (2). The main air intake silencer group (14) is provided between the pneumatic assembly module (2) and the corridor air intake module (1). The first cooling air inlet (141) is provided above the main air intake silencer group (14). The air intake module (1) of the corridor is provided with an air intake door (11) on the outside, and the air intake door (11) and the main air intake muffler group (14) form a first chamber (Ⅰ). The pneumatic assembly module (2) and the electrical main door (41) are provided with a motor air-cooled silencing group (25) and an electrical silencing group (34), and the space between the motor air-cooled silencing group (25) and the electrical silencing group (34) is a second chamber (Ⅱ); The third chamber (Ⅲ) is located between the main intake muffler group (14) and the motor air-cooled muffler group (25), and between the pneumatic assembly module (2) and the base (5). The air intake (11) is provided with a first natural gas inlet (1131) at the top and a first flue gas inlet (1132) at the bottom; the natural gas entering from the first natural gas inlet (1131) and the flue gas entering from the first flue gas inlet (1132) can enter the main unit room through the first chamber (Ⅰ) and the first cooling air inlet (141) in sequence; The top of the electrical silencing assembly (34) is provided with a second cooling air inlet (341). Natural air enters from the second natural air inlet (411) and passes through the second cooling air inlet (341), the second chamber (II), the third cooling air inlet (343), the third chamber (III), and the motor cooling air inlet (2111) to enter the main unit room for cooling.

2. A magnetic levitation blower based on the reuse of flue gas according to claim 1, characterized in that, The pneumatic assembly module (2) includes: a fixed unit (21), a pneumatic unit (22), an air intake unit (23), and an air outlet unit (24); The fixing unit (21) includes: a layered plate (211), a fan fixing seat (213), and a fan mounting seat (215). The layered plate (211) is fixed on the base (5) of the cabinet, and a mounting hole is opened in the middle of the layered plate (211). The fan mounting seat (215) is provided on the layered plate (211). A motor cooling air inlet (2111) is provided on one side of the layered plate (2111). The fan fixing seat (213) passes through the fan mounting seat (215) and the layered plate (211) in sequence, and is elastically connected to the mounting hole through the side bubble groove rubber strip (214) provided on the side wall of the mounting hole. The bottom surface of the fan fixing seat (213) is elastically connected to the base (5) through the fixing seat shock absorption pad (212) provided on the base (5). The pneumatic unit (22) includes: a motor air-cooled air collection pipe (221), a motor air-cooled air outlet pipe (222), and a motor body (223); the motor air-cooled air collection pipe (221) is arranged around the outer shell of the motor body (223) and one end is connected to the inside of the motor body (223), and the other end is open downward; one end of the motor air-cooled air outlet pipe (222) is connected to the pipe body of the motor air-cooled air collection pipe (221), and the other end extends upward to connect with the venting and exhaust module (3); the motor air-cooled air outlet pipe (222) is a non-metallic flexible hose to achieve an elastic connection with the venting and exhaust module (3); The air intake unit (23) includes: an air intake cylinder (231) and a top bubble slot rubber strip (232); one end of the air intake cylinder (231) is rigidly connected to the motor body (223), and the other end is welded with a ring plate (234) and an arc plate (233) in sequence. The top bubble slot rubber strip (232) is provided on the arc plate (233) and is elastically connected to the main air intake muffler assembly (14); The air outlet unit (24) includes: a grooved clamp (241), a first air outlet duct (242), and an air outlet sealing gasket (243); the first air outlet duct (242) is elastically connected to the motor body (223) through a rubber seal (2411) provided on the grooved clamp (241); the first air outlet duct (242) is elastically connected to the air outlet top cover (32) and the second air outlet duct (31) provided above by bolts; a vent valve (2421) is welded to the side of the first air outlet duct (242), and the other end of the vent valve (2421) is elastically connected to the cabinet through a flexible rubber joint (2422); the outer diameter of the second air outlet duct (31) is smaller than the inner diameter of the air outlet top cover (32).

3. A magnetic levitation blower based on the reuse of flue gas according to claim 1, characterized in that, The corridor air intake module (1) also includes: a flue gas filter (12) and a flue gas intake box (13); The flue gas filtration device (12) is disposed between the flue gas inlet box (13) and the first flue gas inlet (1132), and includes: a frame (121), a filter fixing bracket (122), a filter mounting plate (123), a guide rail (124), a primary filter cotton (125), and a medium-efficiency filter (126); the frame (121) is movably connected to the filter mounting plate (123), the filter fixing bracket (122) is installed inside the frame (121), the filter fixing bracket (122) is provided with guide rails (124) on both sides, the frame (121) is provided with guide rail grooves matching the guide rails (124) on both sides, and the medium-efficiency filter (126) and the primary filter cotton (125) are respectively installed on the front and back sides of the filter fixing bracket (122).

4. A magnetic levitation blower based on the reuse of flue gas according to claim 3, characterized in that, The guide rail (124) is a three-section slide rail. The upper section of the guide rail (124) is fixedly connected to the frame (121) by fasteners, and the lower section of the guide rail (124) is fixedly connected to the filter fixing frame (122) by fasteners. The upper section guide rail (124) and the lower section guide rail (124) are connected by the middle section guide rail (124).

5. A magnetic levitation blower based on the reuse of flue gas according to claim 3, characterized in that, The flue gas inlet box (13) includes: an inlet box frame (131), an inlet box inspection door (132), a waste collection box (134), a flue gas regulating valve (135), an inlet box channel (136), and an inlet box filter (137). The intake box frame (131) is provided with an intake box inspection door (132) with a switch on one side. Inside, there is an intake box filter (137) and an intake box channel (136). One end of the intake box channel (136) is fixedly connected to the intake box filter (137), and the other end extends out of the flue gas intake box (13) for air intake. The top of the intake box channel (136) is provided with the flue gas regulating valve (135). The bottom surface inside the air intake frame (131) is provided with a waste collection port (133), and the waste collection port (133) is connected to the waste collection box (134) below. One side of the waste collection box (134) is inclined downward and is provided with a waste collection inspection door (1341). The bottom of the waste collection box (134) is provided with a drain outlet (1342).

6. A magnetic levitation blower based on the reuse of flue gas according to claim 1, characterized in that, The intake door (11) includes: a sealing plate (111), a sound insulation layer (112), and a door frame (113). The sound insulation layer (112) is installed between the sealing plate (111) and the door frame (113). The sound insulation layer (112) includes: a sound-absorbing plate (1121), sound-absorbing cotton (1122), and damping sound insulation felt (1123). The sound-absorbing cotton (1122) is filled between the sound-absorbing plate (1121) and the damping sound insulation felt (1123).

7. A magnetic levitation blower based on the reuse of flue gas according to claim 6, characterized in that, The silencing structures inside the main intake silencing group (14), the motor air-cooled silencing group (25), and the electrical silencing group (34) are the same as the structure of the sound insulation layer (112) inside the intake valve (11).

8. A magnetic levitation blower based on the reuse of flue gas according to claim 1, characterized in that, The venting and exhaust module (3) also includes a frequency converter exhaust duct (342); The variable frequency air outlet (342) and the second cooling air inlet (341) are arranged side by side above the electrical silencer group (34) and connected to the vent box (33). The vent box (33) is also provided with a vent outlet (321) and an electrical axial flow fan (322) on the top air outlet cover (32).

9. A magnetic levitation blower based on the reuse of flue gas according to claim 1, characterized in that, The human-computer interaction module (4) includes: a variable frequency current collector (42), a frequency converter (43), and a touch screen (44). The variable frequency collector (42) is installed in the second chamber (II), and the horizontal opening of the variable frequency collector (42) is connected to the variable frequency exhaust duct (342) above the electrical silencer group (34), and the vertical opening of the variable frequency collector (42) is connected to the frequency converter (43) below; a natural air intake differential pressure sensor is provided above the first chamber (I), and a flue gas intake differential pressure sensor is provided below; the touch screen (44) is installed on the electrical main door (41), and a circuit connection is provided between it and the frequency converter (43) and the differential pressure sensor.

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