Permanent magnet direct drive type smoke exhaust and air supply integrated device

Abstract

The utility model relates to a permanent magnet direct drive type smoke exhaust and air supply integrated device, relates to the technical field of smoke exhaust and air supply, and aims to solve the problem that a traditional smoke exhaust and air supply system cannot exhaust smoke quickly. The permanent magnet direct drive type smoke exhaust and air supply integrated device comprises a T-shaped air inlet box, a guide cylinder and a shell which are communicated in sequence; a clean air inlet and a flue gas inlet are formed in the two ends of the T-shaped air inlet box respectively, a clean air inlet adjusting valve and a flue gas inlet adjusting valve are arranged in the T-shaped air inlet box respectively, a three-dimensional flow mixing impeller is rotationally arranged in the shell, a permanent magnet speed adjusting motor is arranged on the shell, and a flue gas outlet is formed in one end of the shell. The flue gas outlet is formed in one side of a flue gas inlet of the T-shaped air inlet box, the flue gas outlet of the shell and one side of the flue gas inlet of the T-shaped air inlet box are communicated with a flue gas exhaust and air supply rapid switching bypass pipe, and a flue gas exhaust and air supply rapid switching valve plate used for internal on-off is arranged in the flue gas exhaust and air supply rapid switching bypass pipe. The device has the effect of achieving efficient smoke exhaust and air supply of the underground building.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of smoke exhaust and air supply, in particular to a permanent magnet direct drive type smoke exhaust and air supply integrated device. BACKGROUND

[0002] With the acceleration of urbanization, the development and utilization of underground space are increasingly extensive, including underground squares, tunnels, mines and other super-long and multi-layer underground structures which play an irreplaceable role in urban transportation, business, energy storage and safety refuge; however, due to the closed nature and structural complexity of such underground space, once an emergency such as fire occurs, rapid and effective smoke exhaust and air supply becomes a key link to ensure personnel safety and reduce property loss, and the smoke exhaust system of underground space faces great challenges.

[0003] In the prior art, the internal structure of super-long and multi-layer underground space such as underground square, tunnel and mine is complex, and the fire fighting and rescue is difficult, the traditional smoke exhaust and air supply system often has long smoke exhaust pipeline, many bends and large conveying resistance, and high-temperature smoke cannot be exhausted in a short time, which cannot meet the requirement of rapid smoke exhaust for underground building rescue, and thus needs to be improved. CONTENT OF THE UTILITY MODEL

[0004] In order to solve the problem that the traditional smoke exhaust and air supply system cannot rapidly exhaust smoke, the application provides a permanent magnet direct drive type smoke exhaust and air supply integrated device.

[0005] The permanent magnet direct drive type smoke exhaust and air supply integrated device provided by the application adopts the following technical scheme:

[0006] The permanent magnet direct drive type smoke exhaust and air supply integrated device comprises a T-shaped air inlet box, a flow guide cylinder and a shell, the T-shaped air inlet box, the flow guide cylinder and the shell are sequentially communicated, clean air inlets and smoke inlets are arranged at two ends of the T-shaped air inlet box, respectively, clean air inlet adjusting valves and smoke inlet adjusting valves for controlling the flow of clean air and smoke are arranged in the T-shaped air inlet box, respectively, a three-dimensional flow mixing impeller is rotatably arranged in the shell, a permanent magnet speed regulating motor for driving the three-dimensional flow mixing impeller is arranged on the shell, a smoke outlet is arranged at one end of the shell, the smoke outlet is arranged on one side of the smoke inlet of the T-shaped air inlet box, a smoke exhaust and air supply rapid switching bypass pipe is communicated between the smoke outlet of the shell and the one side of the smoke inlet of the T-shaped air inlet box, and a smoke exhaust and air supply rapid switching valve plate for internal on-off is arranged in the smoke exhaust and air supply rapid switching bypass pipe.

[0007] Due to the complex internal structure of super-long, multi-layer underground space such as underground square, tunnel, mine and the like, fire fighting and rescue is difficult, the traditional smoke exhaust and air supply system often has long smoke exhaust pipe, many bends and large conveying resistance, and high-temperature smoke cannot be exhausted in a short time, which cannot meet the requirement of rapid smoke exhaust for underground building rescue; by adopting the technical scheme, the T-shaped air inlet box, the flow guide cylinder and the shell are included, the three-dimensional flow mixed flow impeller is installed in the shell and is driven by the permanent magnet speed regulating motor;

[0008] The air supply working procedure is as follows: firstly, the clean air inlet adjusting valve on the T-shaped air inlet box is opened to allow the external fresh air (clean air) to enter the T-shaped air inlet box through the inlet, and the smoke inlet adjusting valve on the T-shaped air inlet box is closed to prevent the smoke or other contaminated gas from entering the system, the position of the smoke exhaust and air supply quick switching valve plate is switched, the smoke exhaust and air supply quick switching bypass pipe is connected, the shell is communicated with the smoke inlet of the T-shaped air inlet box, and then the permanent magnet speed regulating motor is started to drive the three-dimensional flow mixed flow impeller in the shell to rotate, along with the rotation of the three-dimensional flow mixed flow impeller, the clean air entering the T-shaped air inlet box is sucked and passes through the flow guide cylinder, and then forms a stable airflow through the acceleration and guidance of the three-dimensional flow mixed flow impeller, the airflow then passes through the smoke exhaust and air supply quick switching bypass pipe and flows reversely into the smoke inlet of the T-shaped air inlet box (which is used as an air supply passage at this time), and is transported to the site to provide clean air for the site;

[0009] The smoke exhaust working procedure is as follows: firstly, the clean air inlet adjusting valve of the T-shaped air inlet box is closed to cut off the entry of the external fresh air, then the smoke inlet adjusting valve of the T-shaped air inlet box is opened to allow the high-temperature smoke or other contaminated gas to be exhausted to enter the T-shaped air inlet box through the inlet, the position of the smoke exhaust and air supply quick switching valve plate is switched again, the smoke exhaust and air supply quick switching bypass pipe is disconnected, the shell is not communicated with the smoke inlet of the T-shaped air inlet box, and then the permanent magnet speed regulating motor is started to drive the three-dimensional flow mixed flow impeller in the shell to rotate, the high-temperature smoke entering the T-shaped air inlet box passes through the flow guide cylinder and enters the shell, along with the acceleration and guidance of the three-dimensional flow mixed flow impeller, a fast-flowing airflow is formed, the airflow then directly exhausts outside through the smoke outlet of the shell, and according to the smoke exhaust requirement, the speed of the permanent magnet speed regulating motor can be adjusted to adjust the size of the smoke exhaust amount;

[0010] Through the combination of the three-dimensional mixed flow impeller and the permanent magnet speed regulating motor, the efficient smoke exhaust and air supply of the underground building is realized, the air volume is rapidly started and accurately adjusted, the emergency demand is met, the operation of the smoke exhaust and air supply rapid switching valve plate is simplified, the rescue time is saved, the equipment cost is reduced, the permanent magnet motor operation is reliable, stable and low noise, the direct drive technology reduces the equipment size and weight, the compact structure design saves space, is suitable for limited environment installation, the wide speed regulation range enables the motor to intelligently adjust according to the site conditions, and the complex smoke exhaust and air supply challenges are met, showing high flexibility and wide application value.

[0011] Optionally, a ring-shaped spray cooling device for cooling is arranged in the T-shaped air inlet box, and the ring-shaped spray cooling device is arranged at the junction of the smoke exhaust and air supply rapid switching bypass pipe and the smoke inlet of the T-shaped air inlet box.

[0012] Through the above technical scheme, the ring-shaped spray cooling device is installed in the T-shaped air inlet box; in the smoke exhaust working process, when it is detected that the smoke temperature exceeds the allowable value, the ring-shaped spray cooling device is started, the opening degree is adjusted to ensure that the smoke temperature entering the three-dimensional mixed flow impeller is reduced to below the allowable value, and in the air supply working process, when the site temperature is high, the dust is much, etc., the ring-shaped spray cooling device can be started to deliver a large amount of water vapor for cooling and dust removal; through the arrangement of the ring-shaped spray cooling device, the high-temperature smoke temperature is effectively reduced in the smoke exhaust working process, the three-dimensional mixed flow impeller and other equipment are protected from high temperature damage, the service life is prolonged, the potential threat of high-temperature smoke to rescue personnel and on-site equipment is reduced, and the safety of rescue operation is improved; in the air supply working process, a large amount of water vapor can be delivered for cooling in the face of high temperature and much dust on the site, and the dust particles in the air can be effectively adsorbed and settled, the air quality on the site is improved, and a cleaner working environment is provided for the rescue personnel.

[0013] Optionally, a spray water connecting pipe for supplying water to the ring-shaped spray cooling device is arranged outside the T-shaped air inlet box, and a spray water regulating valve and a spray water pressure sensor for controlling the spray water flow and detecting the spray water working pressure are arranged on the spray water connecting pipe.

[0014] By adopting the technical scheme, the spray water connecting pipe is connected to the ring-shaped spray cooling device, and a spray water regulating valve and a spray water pressure sensor are provided; through the spray water connecting pipe, the spray water regulating valve and the spray water pressure sensor, the spray water regulating valve can accurately control the flow of the spray water according to actual needs, so that the ring-shaped spray cooling device can provide appropriate water mist as needed during smoke exhaust or air supply, the needs of cooling and dust removal are met, and water resources are not wasted; the spray water pressure sensor can monitor the working pressure of the spray water in real time, and potential problems of insufficient or excessive water pressure can be found and solved in time, so that the normal operation of the spray cooling device is ensured, the stability and reliability of the system are improved, and accidents caused by improper operation or equipment failure are reduced.

[0015] Optionally, the T-shaped air inlet box is provided with a temperature sensor for detecting the temperature of flue gas, and the temperature sensor is arranged between the flue gas inlet regulating valve and the flow guide cylinder in the T-shaped air inlet box.

[0016] By adopting the technical scheme, the temperature sensor is installed in the T-shaped air inlet box; when the temperature sensor detects that the temperature of the flue gas entering the three-dimensional flow mixing impeller exceeds the allowable value, the ring-shaped spray cooling device is started for cooling treatment; through the arrangement of the temperature sensor, the temperature of the flue gas entering the T-shaped air inlet box can be monitored in real time, and once the temperature exceeds the allowable value, an alarm is triggered and the ring-shaped spray cooling device is started for cooling treatment, so that the safe operation of the system is ensured, accurate control of the temperature of the flue gas is realized, and the situation of excessive cooling or insufficient cooling is avoided.

[0017] Optionally, a wind channel hose is arranged at the flue gas inlet of the T-shaped air inlet box.

[0018] By adopting the technical scheme, the wind channel hose is arranged at the flue gas inlet of the T-shaped air inlet box; through the arrangement of the wind channel hose, the lightweight temperature-resistant hose can withstand the transmission of high-temperature flue gas, so that stable performance can be maintained in a high-temperature environment, and the hose will not soften, deform or age due to high temperature, so that the safe operation of the system is ensured, the maximum lifting distance of a single hose can reach 50 meters, and a plurality of hoses can be used in conjunction, so that the requirements of long-distance high-temperature flue gas transmission are met, the system is suitable for various complex installation environments, and different individualized needs can be met.

[0019] Optionally, an installation flange seat plate for installing a permanent magnet speed regulating motor is arranged outside the shell, and a hanging bolt for fixing the three-dimensional flow mixing impeller is arranged on a main shaft of the permanent magnet speed regulating motor.

[0020] By adopting the technical scheme, the permanent magnet speed regulating motor is installed on the shell through the installation flange seat plate, and the permanent magnet speed regulating motor and the three-dimensional flow mixed flow impeller are fixed through the hanging bolt; through the setting of the hanging bolt and the installation flange seat plate, the installation flange seat plate makes the installation process of the motor simple and fast, improves the installation efficiency, ensures the stability of the motor installation, and adjusts the pressing torque by rotating the hanging bolt, ensures the firm fixation of the impeller on the main shaft of the permanent magnet speed regulating motor, and realizes efficient and stable power transmission.

[0021] Optionally, a high-temperature corrosion-resistant sealing glue for preventing high-temperature flue gas leakage is arranged between the shell and the installation flange seat plate.

[0022] By adopting the technical scheme, the high-temperature corrosion-resistant sealing glue effectively prevents high-temperature flue gas leakage; through the setting of the high-temperature corrosion-resistant sealing glue, stable performance can be maintained in an extremely high-temperature environment, high-temperature flue gas leakage is effectively prevented, and safety hazards and environmental pollution caused by flue gas leakage are reduced.

[0023] Optionally, a cooling channel is arranged in the permanent magnet speed regulating motor, and a permanent magnet motor cooling water inlet and a permanent magnet motor cooling water outlet are arranged on the permanent magnet speed regulating motor.

[0024] By adopting the technical scheme, the permanent magnet motor cooling water inlet and the permanent magnet motor cooling water outlet are formed on the permanent magnet speed regulating motor; through the setting of the permanent magnet motor cooling water inlet and the permanent magnet motor cooling water outlet, the stability of the internal temperature of the motor is maintained, efficient heat dissipation is realized, and performance degradation or damage caused by overheating is reduced.

[0025] Optionally, an installation base plate for installation is arranged outside the shell, and the installation base plate is arranged at the bottom of the shell.

[0026] By adopting the technical scheme, the installation base plate is installed at the bottom of the shell; through the setting of the installation base plate, the installation base plate provides firm support for the shell, significantly enhances the rigidity of the entire structure, helps to resist external impact and vibration, prevents the shell from deforming or being damaged, and improves the stability and durability of the equipment.

[0027] In summary, the present application has at least one of the following beneficial technical effects:

[0028] The combination of a three-dimensional mixed flow impeller, a permanent magnet speed-regulating motor, and a quick-switching bypass for smoke exhaust and air supply achieves high efficiency in underground building smoke exhaust and air supply, enabling rapid startup and precise adjustment of air volume to meet emergency needs. The quick-switching valve plate design for smoke exhaust and air supply simplifies operation, saves rescue time, and reduces equipment costs. The permanent magnet motor operates reliably, smoothly, and with low noise, adapting to harsh environments. Direct-drive technology reduces the size and weight of the equipment, facilitating vehicle-mounted and underground deployment. The compact design saves space and is suitable for installation in limited environments. The wide speed range enables the motor to intelligently adjust according to on-site conditions to cope with complex smoke exhaust and air supply challenges, demonstrating high flexibility and wide application value.

[0029] The setting of the annular spray cooling device can effectively reduce the temperature of high-temperature flue gas in the smoke exhaust process, protect the three-dimensional mixed flow impeller and other equipment from high-temperature damage, extend the service life, and reduce the temperature in time, reducing the potential threat of high-temperature flue gas to rescue personnel and on-site equipment, thereby improving the safety of rescue operations. At the same time, in the air supply process, facing the high temperature and heavy dust on-site conditions, it can transport a large amount of water vapor to the rescue site for cooling, and can also effectively absorb and settle dust particles in the air, improving the air quality on-site and providing a cleaner working environment for rescue personnel.

[0030] By setting up the temperature sensor, the flue gas temperature entering the T-type air inlet box can be monitored in real time. Once it is detected that the temperature exceeds the allowable value, the alarm will be triggered immediately and the annular spray cooling device will be started for cooling treatment, ensuring the safe operation of the system, achieving precise control of the flue gas temperature, and avoiding excessive or insufficient cooling. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] Figure 1 This is a front view of a permanent magnet direct drive integrated smoke exhaust and air supply device in an embodiment of the present application.

[0032] Figure 2 It is a side view of a permanent magnet direct drive integrated smoke exhaust and air supply device in an embodiment of the present application.

[0033] Figure 3 yes Figure 1 AA section view in.

[0034] Figure 4 yes Figure 3 Magnified view of part A.

[0035] Explanation of reference signs: 1, clean air inlet; 2, clean air inlet regulating valve; 3, flow guide cylinder; 4, three-dimensional flow mixing impeller; 5, shell; 6, temperature sensor; 7, T-shaped air inlet box; 8, flue gas inlet regulating valve; 9, ring-shaped spray cooling device; 10, flue gas inlet; 11, exhaust air / supply air quick switching bypass pipe; 12, exhaust air / supply air quick switching valve plate; 13, flue gas outlet; 14, hanging tight bolt; 15, permanent magnet speed regulating motor; 16, spray water pressure sensor; 17, spray water regulating valve; 18, spray water connecting pipe; 19, mounting base plate; 20, permanent magnet motor cooling water inlet; 21, permanent magnet motor cooling water outlet; 22, air duct hose; 23, mounting flange base plate; 24, high-temperature corrosion-resistant sealing glue. DETAILED DESCRIPTION

[0036] The following will be described in detail in combination with the accompanying drawings. Figures 1-4 The present application is further described in detail.

[0037] The embodiment of the present application discloses a permanent magnet direct drive type exhaust air / supply air integrated device. Figure 1 and Figure 3 The permanent magnet direct drive type exhaust air / supply air integrated device comprises a T-shaped air inlet box 7, a flow guide cylinder 3 and a shell 5, the T-shaped air inlet box 7, the flow guide cylinder 3 and the shell 5 are all hollow structures in the embodiment, and the T-shaped air inlet box 7, the flow guide cylinder 3 and the shell 5 are sequentially connected.

[0038] Referring to Figure 1 and Figure 3 , the flow guide cylinder 3 can be made of 316L stainless steel in the embodiment, the flow guide cylinder 3 is installed in the middle of the T-shaped air inlet box and the shell 5, the three components are all positioned by positioning pins and are fastened and connected by bolts, the flow guide cylinder 3 is conical and convergent and extends into the shell 5, the flow guide cylinder 3 adopts a multiple annealing process to reduce deformation in the manufacturing process, and finally reaches the required size through precision machining to ensure the assembly precision control requirement.

[0039] Referring to Figure 1 , the high-temperature flue gas contains hazardous gases such as corrosive, flammable and explosive gases in the embodiment, the shell 5 can be made of high-strength alloy steel, sprayed with high-temperature corrosion-resistant paint, and subjected to an annealing process to eliminate welding stress and reduce the deformation amount of the shell 5 in the manufacturing process, so as to finally reach the assembly precision control requirement, and the shell 5 is subjected to air tightness testing to meet the zero leakage requirement.

[0040] Referring to Figure 1 and Figure 2 , the shell 5 is externally provided with a mounting base plate 19, the mounting base plate 19 provides a firm support for the shell 5, significantly enhances the rigidity of the whole structure, helps to resist external impact and vibration, prevents the shell 5 from deforming or being damaged, and improves the stability and durability of the equipment.

[0041] With reference to Figure 1 and Figure 3 , the two ends of the T-shaped air inlet box 7 are respectively formed with a clean air inlet 1 and a flue gas inlet 10, and the T-shaped air inlet box 7 is respectively installed with a clean air inlet regulating valve 2 and a flue gas inlet regulating valve 8. The clean air inlet regulating valve 2 and the flue gas inlet regulating valve 8 can both be multi-plate valve regulating valves. The clean air inlet regulating valve 2 is located at the clean air inlet 1 of the T-shaped air inlet box 7, and the flue gas inlet regulating valve 8 is located at the flue gas inlet 10 of the T-shaped air inlet box 7. The clean air inlet regulating valve 2 is used to control the flow of clean air from the clean air inlet 1 into the inside of the T-shaped air inlet box 7, and the flue gas inlet regulating valve 8 is used to control the flow of high-temperature flue gas from the flue gas inlet 10 into the inside of the T-shaped air inlet box 7. In this embodiment, when air is supplied, the clean air inlet regulating valve 2 is opened and the flue gas inlet regulating valve 8 is closed; when flue gas is discharged, the clean air inlet regulating valve 2 is closed and the flue gas inlet regulating valve 8 is opened.

[0042] With reference to Figure 1 and Figure 2 , the flue gas inlet 10 of the T-shaped air inlet box 7 is installed with an air duct hose 22. In this embodiment, the air duct hose 22 is a lightweight temperature-resistant hose that meets the requirements of high-temperature flue gas transportation. The inside of the hose is reinforced and supported by high-strength steel wire spirals, which can be quickly pulled up and contracted. The maximum pulling distance of a single pipe is 50 meters, and the connection of several pipes can meet the requirements of long-distance transportation.

[0043] With reference to Figure 1 , the shell 5 is formed with a flue gas outlet 13. The flue gas outlet 13 is located at the lower part of the shell 5 and is arranged on one side of the flue gas inlet 10 of the T-shaped air inlet box 7. The flue gas outlet 13 can be used for discharging high-temperature flue gas.

[0044] With reference to Figure 1 and Figure 3 , a flue gas discharge and air supply quick switching bypass pipe 11 is formed between the T-shaped air inlet box 7 and the shell 5. The flue gas discharge and air supply quick switching bypass pipe 11 is respectively connected with the T-shaped air inlet box 7 and the shell 5. In this embodiment, the flue gas discharge and air supply quick switching bypass pipe 11 is arranged on one side of the flue gas outlet 13 of the shell 5 and the flue gas inlet 10 of the T-shaped air inlet box 7.

[0045] With reference to Figure 1 and Figure 3, the smoke exhaust, air supply quick switching bypass pipe 11 is provided with a smoke exhaust, air supply quick switching valve plate 12, which is used for controlling the on-off of the smoke exhaust, air supply quick switching bypass pipe 11 between the T-shaped air inlet box 7 and the shell 5. In the embodiment, the smoke exhaust, air supply quick switching valve plate 12 has two switching positions of D and E. When air supply is performed, the smoke exhaust, air supply quick switching valve plate 12 is switched to the E position, and the smoke exhaust, air supply quick switching bypass pipe 11 is connected; when smoke exhaust is performed, the smoke exhaust, air supply quick switching valve plate 12 is switched to the D position, and the smoke exhaust, air supply quick switching bypass pipe 11 is disconnected.

[0046] With reference to Figure 1 and Figure 3 , the T-shaped air inlet box 7 is provided with a ring-shaped spray cooling device 9, which is arranged at a position where the smoke exhaust, air supply quick switching bypass pipe 11 is connected to the smoke gas inlet 10 of the T-shaped air inlet box 7. The T-shaped air inlet box 7 is externally provided with a spray water connecting pipe 18, one end of which is connected to a water supply device, and the other end of which is connected to the ring-shaped spray cooling device 9. In the smoke exhaust process, the ring-shaped spray cooling device 9 can effectively reduce the temperature of high-temperature smoke gas, protect the three-dimensional flow mixing impeller 4 and other equipment from high temperature, prolong the service life, and reduce the potential threat of high-temperature smoke gas to rescue personnel and on-site equipment, thereby improving the safety of rescue operations. In the air supply process, the ring-shaped spray cooling device 9 can deliver a large amount of water vapor to the rescue site to reduce the temperature and dust in the air, effectively absorb and settle dust particles in the air, improve the air quality of the site, and provide a cleaner working environment for rescue personnel.

[0047] With reference to Figure 1 and Figure 3 , the spray water connecting pipe 18 is provided with a spray water regulating valve 17 and a spray water pressure sensor 16. The spray water regulating valve 17 can accurately control the flow of spray water according to actual needs, so that the ring-shaped spray cooling device 9 can provide appropriate water mist as needed in the smoke exhaust or air supply process, meet the needs of cooling and dust removal, and avoid waste of water resources. The spray water pressure sensor 16 can monitor the working pressure of the spray water in real time, discover and solve potential problems of insufficient or excessive water pressure in time, ensure the normal operation of the spray cooling device, improve the stability and reliability of the system, and reduce accidents caused by improper operation or equipment failure.

[0048] With reference to Figure 1 and Figure 3The temperature sensor 6 is arranged between the flue gas inlet adjusting valve 8 and the guide cylinder 3 in the T-shaped air inlet box 7. When the temperature sensor 6 detects that the temperature of the flue gas entering the three-dimensional flow mixed flow impeller 4 exceeds the allowable value, the ring-shaped spray cooling device 9 is started to perform cooling treatment. The temperature of the flue gas entering the T-shaped air inlet box 7 can be monitored in real time. Once the temperature exceeds the allowable value, an alarm is triggered and the ring-shaped spray cooling device 9 is started to perform cooling treatment, ensuring the safe operation of the system and realizing accurate control of the flue gas temperature to avoid excessive cooling or insufficient cooling.

[0049] With reference to Figure 1 and Figure 3 , the three-dimensional flow mixed flow impeller 4 is rotatably installed in the shell 5. The shell 5 is externally provided with a permanent magnet speed regulation motor 15. The main shaft of the permanent magnet speed regulation motor 15 is provided with a hanging bolt 14 for fixing the three-dimensional flow mixed flow impeller 4.

[0050] With reference to Figure 1 and Figure 3 , the three-dimensional flow mixed flow impeller 4 in the embodiment combines the characteristics of an axial flow impeller and a centrifugal impeller, is suitable for large-flow and high-pressure occasions, has the characteristics of high efficiency, energy saving, miniaturization, good starting performance, stable operation, low noise, etc., can adapt to variable operating conditions, improve the efficiency and working area of smoke exhaust and air supply, and can adopt a miniaturized and lightweight design scheme. The impeller is made of high-strength aluminum alloy through precision casting and solid solution treatment, effectively improves the fatigue resistance and service life of the product, has high precision, light weight and small moment of inertia, facilitates quick start of the motor, can quickly exhaust and supply air, has the advantages of large air volume, high pressure, high temperature resistance, etc., can completely exchange air in the rescue space in a short time, and the maximum delivery distance can reach 200 meters, meeting the requirements of long-distance and multi-corner rescue environment for smoke exhaust and air supply. The impeller is subjected to statics and dynamics analysis to calculate the deformation of the impeller under high-speed operation, so as to ensure the safe and reliable operation of the impeller.

[0051] With reference to Figure 1 and Figure 3 , the permanent magnet speed regulation motor 15 directly drives the three-dimensional flow mixed flow impeller 4 to rotate in the embodiment, so that the intermediate transmission mechanism is omitted, the size and weight of the whole machine are greatly reduced, the requirements of miniaturization and lightweight are met, and the device is suitable for occasions with limited space and lightweight requirements. The permanent magnet speed regulation motor 15 has fast speed regulation response speed and high reliability, can be quickly started during rescue, saves valuable rescue time, has a wide speed regulation range, can quickly adjust the motor speed according to the actual working condition on site, and meets the use requirements of air volume and pressure under various working conditions.

[0052] With reference to Figure 4 and Figure 4In the embodiment, the permanent magnet speed regulating motor 15 can be water-cooled. The permanent magnet speed regulating motor 15 is internally provided with a cooling channel. The permanent magnet speed regulating motor 15 is respectively formed with a permanent magnet motor cooling water inlet 20 and a permanent magnet motor cooling water outlet 21. The permanent magnet motor cooling water inlet 20 is located at the shaft head end of the permanent magnet motor. The permanent magnet motor cooling water outlet 21 is located at the tail end of the permanent magnet motor. This helps to maintain the stability of the internal temperature of the motor, realizes efficient heat dissipation, and reduces the performance decline or damage caused by overheating.

[0053] With reference to ​ The mounting flange seat plate 23 is externally mounted on the shell 5. The permanent magnet speed regulating motor 15 is mounted on the mounting flange seat plate 23. In the embodiment, the mounting flange seat plate 23 mounts the permanent magnet speed regulating motor 15 on the shell 5 through fastening bolts. The mounting flange seat plate 23 makes the installation process of the motor simple and fast, improves the installation efficiency, and ensures the stability of the motor installation.

[0054] With reference to ​ The high-temperature corrosion-resistant sealant 24 is filled between the shell 5 and the mounting flange seat plate 23. The high-temperature corrosion-resistant sealant 24 can be filled in the corresponding installation gap. It can maintain stable performance in an extremely high-temperature environment, effectively prevent the leakage of high-temperature flue gas, and reduce the safety hazards and environmental pollution that may be caused by flue gas leakage.

[0055] The implementation principle of the permanent magnet direct drive type smoke exhaust and air supply integrated device according to the embodiment is as follows. Air supply working process: first, open the clean air inlet adjusting valve 2 on the T-shaped air inlet box 7, allow the external fresh air (clean air) to enter the T-shaped air inlet box 7 through the inlet, and close the flue gas inlet adjusting valve 8 on the T-shaped air inlet box 7 to prevent flue gas or other contaminated gas from entering the system. The smoke exhaust and air supply quick switching valve plate 12 is switched to the E position, the smoke exhaust and air supply quick switching bypass pipe 11 is connected, the shell 5 is communicated with the flue gas inlet 10 of the T-shaped air inlet box 7, and then the permanent magnet speed regulating motor 15 is started to drive the three-dimensional flow mixing impeller 4 in the shell 5 to rotate. With the rotation of the three-dimensional flow mixing impeller 4, the clean air entering the T-shaped air inlet box 7 is sucked and passes through the flow guide cylinder 3, and then forms a stable airflow through the acceleration and guidance of the three-dimensional flow mixing impeller 4. The airflow then passes through the smoke exhaust and air supply quick switching bypass pipe 11 and flows into the flue gas inlet 10 of the T-shaped air inlet box 7 (which is used as an air supply passage at this time), and is transported to the site to provide clean air for the site.

[0056] The smoke exhaust work flow is as follows: firstly, the clean air inlet adjusting valve 2 of the T-shaped air inlet box 7 is closed to cut off the entry of external fresh air, then the flue gas inlet adjusting valve 8 of the T-shaped air inlet box 7 is opened to allow the high-temperature flue gas or other contaminated gas to be exhausted to enter the T-shaped air inlet box 7 through the inlet, the smoke exhaust and air supply quick switching valve plate 12 is switched to the D position to disconnect the smoke exhaust and air supply quick switching bypass pipe 11, the shell 5 and the flue gas inlet 10 of the T-shaped air inlet box 7 are not communicated with each other, then the permanent magnet speed regulating motor 15 is started to drive the three-dimensional flow mixing impeller 4 in the shell 5 to rotate, the high-temperature flue gas entering the T-shaped air inlet box 7 enters the shell 5 through the guide cylinder 3, and the rapid flow of the gas is formed under the acceleration and guidance of the three-dimensional flow mixing impeller 4, and the gas is then directly discharged to the outside through the flue gas outlet 13 of the shell 5, and according to the exhaust demand, the exhaust amount can be adjusted by adjusting the speed of the permanent magnet speed regulating motor 15;

[0057] Through the three-dimensional flow mixing impeller 4, the permanent magnet speed regulating motor 15, the smoke exhaust and air supply quick switching bypass pipe 11 and the like, the combination of the three-dimensional flow mixing impeller 4 and the permanent magnet speed regulating motor 15 realizes the high efficiency of the underground building smoke exhaust and air supply, rapid start and accurate adjustment of the air volume, meets the emergency demand, the smoke exhaust and air supply quick switching valve plate simplifies the operation, saves the rescue time, and reduces the equipment cost, and the permanent magnet motor runs reliably, stably and lowly, adapts to the harsh environment, the direct drive technology reduces the equipment volume and weight, is convenient for vehicle-mounted and underground deployment, the compact structure design saves the space, is suitable for limited environment installation, the wide speed regulation range enables the motor to intelligently adjust according to the field conditions, and the motor can cope with complex smoke exhaust and air supply challenges, and shows high flexibility and wide application value.

[0058] The above are preferred embodiments of the present application, and do not limit the protection scope of the present application, therefore: any equivalent changes made on the structure, shape, principle of the present application should be covered in the protection scope of the present application.

Claims

1. A permanent magnet direct drive type smoke exhaust and supply integrated device, characterized in that: The utility model relates to a kind of smoke exhaust and air supply device, including T-type air intake box (7), flow guide cylinder (3) and shell (5), the T-type air intake box (7), flow guide cylinder (3) and shell (5) sequentially communicate, clean air inlet (1) and flue gas inlet (10) are respectively opened in the both ends of the T-type air intake box (7), clean air inlet regulating valve (2) and flue gas inlet regulating valve (8) are respectively arranged in the T-type air intake box (7) for controlling clean air and flue gas flow, three-dimensional flow mixing impeller (4) is rotatably arranged in the shell (5), permanent magnet speed regulating motor (15) for driving three-dimensional flow mixing impeller (4) is arranged on the shell (5), flue gas outlet (13) is opened in one end of the shell (5), the flue gas outlet (13) is opened in the flue gas inlet (10) side of T-type air intake box (7), flue gas outlet (13) of the shell (5) and flue gas inlet (10) side of T-type air intake box (7) are communicated with smoke exhaust, air supply fast switching bypass pipe (11), smoke exhaust, air supply fast switching valve plate (12) for internal on-off is arranged in the smoke exhaust, air supply fast switching bypass pipe (11).

2. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 1, characterized in that: Ring type spray cooling device (9) for cooling is arranged in the T-type air intake box (7), and the ring type spray cooling device (9) is arranged at the confluence of flue gas inlet (10) in the T-type air intake box (7) and smoke exhaust, air supply fast switching bypass pipe (11).

3. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 2, characterized in that: Spray water connecting pipe (18) for supplying water to ring type spray cooling device (9) is arranged outside the T-type air intake box (7), and spray water regulating valve (17) and spray water pressure sensor (16) for controlling spray water flow and detecting spray water working pressure are arranged on the spray water connecting pipe (18).

4. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 2, characterized in that: Temperature sensor (6) for detecting flue gas temperature is arranged in the T-type air intake box (7), and the temperature sensor (6) is arranged between flue gas inlet regulating valve (8) and flow guide cylinder (3) in the T-type air intake box (7).

5. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 1, characterized in that: Air duct hose (22) is arranged at flue gas inlet (10) of the T-type air intake box (7).

6. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 1, characterized in that: Mounting flange seat plate (23) for mounting permanent magnet speed regulating motor (15) is arranged outside the shell (5), and hanging bolt (14) for fixing three-dimensional flow mixing impeller (4) is arranged on the main shaft of the permanent magnet speed regulating motor (15).

7. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 6, characterized in that: High-temperature corrosion resistant sealant (24) for preventing high-temperature flue gas leakage is arranged between the shell (5) and mounting flange seat plate (23).

8. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 1, characterized in that: Cooling channel is arranged in the permanent magnet speed regulating motor (15), and permanent magnet motor cooling water inlet (20) and permanent magnet motor cooling water outlet (21) are respectively arranged on the permanent magnet speed regulating motor (15).

9. The permanent magnet direct drive type smoke exhaust and supply integrated device according to claim 1, characterized in that: Mounting base plate (19) for mounting is arranged outside the shell (5), and the mounting base plate (19) is arranged at the bottom of the shell (5).

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