A smoke removal device

Abstract

The present invention relates to the field of separation technology, and in particular to a smoke removal device. The device includes a suction mechanism, a condensation mechanism, and a filter element mechanism; the filter element mechanism is provided with a separation chamber; the condensation mechanism is provided in the separation chamber; the suction mechanism is configured to be able to drive the smoke into the separation chamber, and to allow the smoke to pass through the condensation mechanism and the filter element mechanism in sequence, so that some of the droplets in the smoke converge on the condensation mechanism and are discharged. When the smoke removal device provided by the present invention is in use, the suction mechanism drives the smoke into the separation chamber, and allows the smoke to pass through the condensation mechanism and the filter element mechanism in sequence, so that some of the droplets in the smoke converge on the condensation mechanism and are discharged, and the remaining droplets are separated and removed by the filter element mechanism in the process of passing through the filter element mechanism, thereby solving the problem that the droplets formed during the heating and atomization process of the smoke-generating agent will adhere to the filter element in a semi-liquid or viscous state after cooling, causing the filter element to be more clogged.

Description

Technical Field

[0001] The present invention relates to the field of separation technology, in particular to a smoke removal device. Background Art

[0002] Simulated smoke scenes play an important role in aerospace training, emergency response training, and industrial safety testing. They can realistically restore the smoke environment in sudden situations such as fire, explosion, and leakage, and can be used to improve emergency response capabilities, train operational skills, and test environmental safety.

[0003] In the process of simulating smoke scenes, a smoke liquid (such as glycerin-based smoke liquid or mineral oil-based smoke liquid) is evaporated into gas through a smoke generator. When the vapor comes into contact with cooler air, it will quickly cool down and condense into tiny droplets, forming thick white smoke, thereby achieving the purpose of simulating smoke.

[0004] After the simulated smoke scene is completed, the ventilation equipment drives the air into the smoke removal device. The filter element in the smoke removal device separates the smoke droplets in the air. However, the droplets formed during the heating and atomization process of the smoke agent will adhere to the filter element in a semi-liquid or viscous state after cooling, causing the filter element to become more clogged, thereby affecting the filtration efficiency of the smoke removal device. Summary of the Invention

[0005] The present invention provides a smoke removal device to solve the problem that droplets formed during the heating and atomization process of a smoke generating agent adhere to a filter element in a semi-liquid or viscous state after cooling, causing the filter element to become more clogged.

[0006] In order to solve the above technical problems, the technical solution provided by the present invention is:

[0007] A smoke removal device:

[0008] It includes a suction mechanism, a condensation mechanism and a filter element mechanism; the filter element mechanism is provided with a separation chamber; the condensation mechanism is arranged in the separation chamber; the suction mechanism is configured to drive the smoke into the separation chamber and make the smoke pass through the condensation mechanism and the filter element mechanism in sequence, so that some droplets in the smoke are gathered on the condensation mechanism and discharged, and the remaining droplets are separated and removed by the filter element mechanism in the process of passing through the filter element mechanism.

[0009] Furthermore, the suction mechanism includes a centrifugal impeller, a driving structure and a housing structure;

[0010] The centrifugal impeller is mounted on the drive structure and is located inside the housing structure; the drive structure drives the centrifugal impeller to rotate around its own axis to generate a centrifugal force field; under the action of the centrifugal force field, smoke enters the housing structure, and at the same time drives droplets in the smoke to accelerate toward the outer edge of the centrifugal impeller, causing the droplets to collide with each other.

[0011] Furthermore, the filter element mechanism is installed in the shell structure; the centrifugal impeller is located in the separation chamber; the condensation mechanism includes multiple cooling structures; multiple cooling structures are distributed circumferentially around the axis of the centrifugal impeller and are arranged in the shell structure; the cooling structure is located radially outside the centrifugal impeller, so that the droplets moving toward the outer edge of the centrifugal impeller under the action of the centrifugal force field contact the cooling structure, thereby causing the droplets to cool down and condense.

[0012] Furthermore, the cooling structure includes cooling pipes, impact fins and deflector fins;

[0013] The cooling tube is used to accommodate the cooling medium and provide a cooling contact surface for the droplets; the impact wing is connected to the cooling tube and is provided with a windward surface; the windward surface faces the rotation direction of the centrifugal impeller and is used to receive the droplets thrown out by the centrifugal force field so that the droplets gather on the windward surface; the deflection wing is connected to the cooling tube and is provided with a deflection surface; the deflection surface is arranged at an angle to the windward surface to change the airflow path to prevent the droplets gathered on the windward surface from being carried away by the airflow.

[0014] Furthermore, the condensation mechanism also includes a liquid collection structure; the liquid collection structure includes a liquid collection ring pipe; the impact fins and the deflection fins are twisted around the axis of the cooling tube so that the droplets move downward along the impact fins or the deflection fins driven by the airflow; the liquid collection ring pipe is connected to the bottom of the shell structure and is connected to the shell structure and the separation chamber; the liquid collection ring pipe is sleeved on the cooling structure for collecting the droplets moving downward.

[0015] Furthermore, the liquid collection structure also includes a drain valve; the drain valve is connected to the liquid collection ring pipe; the centrifugal impeller drives air into the separation chamber to make the air pressure in the separation chamber greater than the external air pressure, and then the air in the separation chamber drives the liquid collection ring pipe to be discharged through the drain valve.

[0016] Furthermore, the shell structure includes a top plate, a bottom plate and a guide volute; one end of the filter element mechanism is connected to the top plate, and the other end is connected to the bottom plate; the guide volute is mounted on the top plate and the bottom plate and is rotatably connected to the top plate and the bottom plate; the guide volute can rotate around the axis of the centrifugal impeller to change the outlet position of the guide volute, thereby evenly distributing the load and droplets on the filter element mechanism.

[0017] Furthermore, the housing structure further includes a follower blade; the follower blade is connected to the guide volute and is used to drive the guide volute to rotate under the drive of the centrifugal force field.

[0018] Furthermore, the suction mechanism also includes a supporting structure; the driving structure includes a driving motor and a driving shaft; the driving motor is mounted on the top plate, and its rotating shaft is connected to the driving shaft; the shell structure also includes an air intake mounting seat; the air intake mounting seat is connected to the bottom plate and is connected to the separation chamber; the supporting structure is connected to the air intake mounting seat and is rotatably connected to the end of the driving shaft away from the driving motor.

[0019] Furthermore, the support structure includes a slewing ring, a guide bend plate and a conical guide cover;

[0020] The slewing ring is sleeved on the end of the drive shaft away from the drive motor and is rotatably connected to the drive shaft; one end of the guide bend is connected to the slewing ring, and the other end is connected to the air intake mounting seat; the conical air guide cover is connected to the end of the drive shaft away from the drive motor and covers the air intake side of the slewing ring.

[0021] Based on the above technical solutions, the technical effects achieved by the present invention are:

[0022] 1. The smoke removal device provided by the present invention drives the smoke into the separation chamber through the suction mechanism, and makes the smoke pass through the condensation mechanism and the filter element mechanism in sequence, so that some droplets in the smoke are gathered on the condensation mechanism and discharged, and the remaining droplets are separated and removed by the filter element mechanism in the process of passing through the filter element mechanism, thereby reducing the number of droplets attached to the filter element mechanism, thereby avoiding aggravated clogging of the filter element.

[0023] 2. The smoke removal device provided by the present invention generates a centrifugal force field inside the shell structure through a centrifugal impeller. The centrifugal force field drives the smoke through the shell structure into the centrifugal impeller, and causes the droplets to be pushed more strongly toward the outer edge of the centrifugal impeller. The moving droplets collide with each other and converge, and the size and mass of the converged droplets increase, making it difficult for the droplets to move with the airflow and more easily captured by the cooling structure.

[0024] 3. The smoke removal device provided by the present invention injects a cooling medium into the cooling structure to reduce the temperature in the separation chamber, thereby reducing the saturated vapor pressure of the air entering the separation chamber, causing the smoke liquid vapor that has not condensed into droplets in the smoke to condense. At the same time, the formation of condensation nuclei can be promoted during the air cooling process. The combination of the two increases the number and size of droplets in the separation chamber, further increases the frequency of collisions between droplets, and thus improves the convergence efficiency of droplets in the outer edge area of ​​the centrifugal impeller.

[0025] 4. The smoke removal device provided by the present invention drives the airflow through the cooling structure through the centrifugal force field. The cooling structure changes the flow direction of the airflow so that the droplets in the smoke collide with the cooling structure under the action of inertia and converge. At the same time, since the cooling structure is in a continuous low-temperature state, the condensation of the droplets in the smoke is further promoted.

[0026] 5. The smoke removal device provided by the present invention twists the impact vanes and the deflection vanes around the axis of the cooling tube, so that the droplets on the cooling structure flow into the liquid collecting ring tube under the drive of the airflow, and then controls the liquid collecting ring tube to be connected to the outside through the drain valve, so that the droplets in the liquid collecting ring tube are output through the drain valve under the drive of the airflow generated by the centrifugal impeller.

[0027] 6. The smoke removal device provided by the present invention uses the airflow generated by the centrifugal impeller to cause the guide volute to rotate under the dual action of the reaction force generated by its output airflow and the follower blade, thereby changing in real time the path of the centrifugal impeller output airflow through the filter element mechanism and out of the guide volute outlet, so that the airflow can pass through the filter element mechanism at different angles and directions. During this process, the load and droplets acting on the filter element mechanism by the airflow are evenly distributed, so that the wear and clogging failure rate of the filter element mechanism are reduced. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present invention or the technical solutions in related technologies, the following briefly introduces the drawings required for use in the specific embodiments or related technical descriptions. Obviously, the drawings described below are some embodiments of the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 A schematic structural diagram of a smoke removal device provided in an embodiment of the present invention;

[0030] Figure 2 A front view of a smoke removal device provided in an embodiment of the present invention;

[0031] Figure 3 A bottom view of a smoke removal device provided in an embodiment of the present invention;

[0032] Figure 4 A cross-sectional view of a smoke removal device provided in an embodiment of the present invention;

[0033] Figure 5 A schematic diagram of the assembly structure of a centrifugal impeller, a drive structure, and a support structure provided in an embodiment of the present invention;

[0034] Figure 6 An exploded schematic diagram of the three-dimensional structure of the housing structure provided in an embodiment of the present invention;

[0035] Figure 7 A schematic structural diagram of a condensation mechanism provided in an embodiment of the present invention;

[0036] Figure 8 An exploded schematic diagram of the three-dimensional structure of the condensation mechanism provided in an embodiment of the present invention;

[0037] Figure 9 A schematic structural diagram of a cooling structure provided in an embodiment of the present invention;

[0038] Figure 10 A schematic structural diagram of a filter element mechanism provided in an embodiment of the present invention.

[0039] icon:

[0040] 100-suction mechanism; 110-centrifugal impeller; 120-drive structure; 121-drive motor; 122-drive shaft; 130-housing structure; 131-top plate; 132-bottom plate; 133-guide volute; 134-follower blade; 135-intake mounting seat; 136-inspection door; 137-upper rolling component; 138-lower rolling component; 140-support structure; 141-slewing ring; 1 42-guide bend plate; 143-conical guide cover; 200-condensate mechanism; 210-cooling structure; 211-cooling pipe; 212-impact vane; 213-baffle vane; 220-liquid collecting structure; 221-liquid collecting ring pipe; 222-drain valve; 230-liquid inlet ring pipe; 240-liquid discharge ring pipe; 300-filter element mechanism; 310-filter element bracket; 320-arc filter element; 330-disassembly and assembly bolts. DETAILED DESCRIPTION

[0041] The droplets formed during the heating and atomization process of the smoke agent will adhere to the filter element in a semi-liquid or viscous state after cooling, causing the filter element to become more clogged.

[0042] In view of this, the present solution provides a smoke removal device, including a suction mechanism 100 , a condensation mechanism 200 and a filter element mechanism 300 .

[0043] The following combination Figures 1-10 The structure and shape of the smoke removal device are described in detail:

[0044] The filter element mechanism 300 is provided with a separation chamber; the condensation mechanism 200 is arranged in the separation chamber; the suction mechanism 100 is configured to drive the smoke into the separation chamber and allow the smoke to pass through the condensation mechanism 200 and the filter element mechanism 300 in sequence, so that some droplets in the smoke are gathered on the condensation mechanism 200 and discharged, and the remaining droplets are separated and removed by the filter element mechanism 300 in the process of passing through the filter element mechanism 300.

[0045] In this embodiment, the suction mechanism 100 drives the smoke into the separation chamber and allows the smoke to pass through the condensation mechanism 200 and the filter element mechanism 300 in sequence, so that some droplets in the smoke are gathered on the condensation mechanism 200 and discharged, and the remaining droplets are separated and removed by the filter element mechanism 300 in the process of passing through the filter element mechanism 300.

[0046] In order to initially converge the droplets while driving the smoke into the separation chamber:

[0047] like Figure 2-Figure 3 As shown, the suction mechanism 100 includes a centrifugal impeller 110, a drive structure 120 and a shell structure 130; the centrifugal impeller 110 is mounted on the drive structure 120 and is located inside the shell structure 130; the drive structure 120 drives the centrifugal impeller 110 to rotate around its own axis to generate a centrifugal force field; under the action of the centrifugal force field, smoke enters the shell structure 130, and at the same time drives the droplets in the smoke to accelerate toward the outer edge of the centrifugal impeller 110, causing the droplets to collide with each other.

[0048] In this embodiment, the driving structure 120 drives the centrifugal impeller 110 to rotate around its own axis. The rotating centrifugal impeller 110 generates a centrifugal force field inside the shell structure 130. The centrifugal force field drives the smoke to pass through the shell structure 130 and enter the centrifugal impeller 110. The smoke in the centrifugal impeller 110 is accelerated toward the outer edge of the centrifugal impeller 110 under the action of the centrifugal force field. During this process, due to the large mass of the droplets in the smoke, they will be subjected to a stronger centrifugal force, so that the droplets are pushed more strongly toward the outer edge of the centrifugal impeller 110, and the moving droplets collide with each other and converge.

[0049] In order to achieve the convergence of some droplets in the smoke on the condensation mechanism 200 and improve the convergence effect of the droplets:

[0050] like Figure 4 As shown, the filter element mechanism 300 is installed in the housing structure 130; the centrifugal impeller 110 is located in the separation chamber; the condensation mechanism 200 includes a plurality of cooling structures 210; the plurality of cooling structures 210 are distributed circumferentially around the axis of the centrifugal impeller 110 and are arranged in the housing structure 130; the cooling structures 210 are located radially outside the centrifugal impeller 110, so that the droplets moving toward the outer edge of the centrifugal impeller 110 under the action of the centrifugal force field contact the cooling structures 210, thereby cooling and condensing the droplets.

[0051] In order to separate the droplets in the smoke by using inertial collision while cooling and condensing the droplets:

[0052] like Figure 9 As shown, the cooling structure 210 includes a cooling tube 211, an impact vane 212 and a deflection vane 213; the cooling tube 211 is used to accommodate the cooling medium and provide a cooling contact surface for the droplets; the impact vane 212 is connected to the cooling tube 211 and is provided with a windward surface; the windward surface faces the rotation direction of the centrifugal impeller 110 and is used to receive the droplets thrown out by the centrifugal force field so that the droplets gather on the windward surface; the deflection vane 213 is connected to the cooling tube 211 and is provided with a deflection surface; the deflection surface is arranged at an angle to the windward surface to change the airflow path to prevent the droplets gathered on the windward surface from being carried away by the airflow.

[0053] In order to input the cooling medium into the cooling pipe 211:

[0054] like Figure 8 As shown, the condensation mechanism 200 also includes a liquid inlet ring pipe 230 and a liquid discharge ring pipe 240; the outlet of the liquid inlet ring pipe 230 is connected to the inlet of the cooling pipe 211 and is located below the cooling structure 210; the inlet of the liquid discharge ring pipe 240 is connected to the outlet of the cooling pipe 211 and is located above the cooling structure 210.

[0055] In this embodiment, the liquid inlet ring pipe 230 and the liquid discharge ring pipe 240 can be connected to an independent refrigeration device or a refrigeration system according to the use environment. The independent refrigeration device or the refrigeration system drives the cooling medium into the liquid inlet ring pipe 230, and the cooling medium in the liquid inlet ring pipe 230 enters the liquid discharge ring pipe 240 through the cooling pipe 211. In this process, the liquid inlet ring pipe 230, the cooling pipe 211 and the liquid discharge ring pipe 240 are connected in sequence from bottom to top, so that the cooling medium is fully in contact with the cooling pipe 211. The cooling medium reduces the temperature of the cooling structure 210 and the separation chamber through heat exchange.

[0056] As the temperature in the separation chamber decreases, the saturated vapor pressure of the air entering the separation chamber decreases, causing the smoke liquid vapor in the smoke that has not condensed into droplets to condense. At the same time, the air cooling process can promote the formation of condensation nuclei. The combination of the two increases the number and size of droplets in the separation chamber, and further increases the frequency of droplet collisions in the outer edge area of ​​the centrifugal impeller 110.

[0057] The centrifugal force field drives the airflow to move toward the cooling structure 210. Since the windward surface of the impact vane 212 faces the rotation direction of the centrifugal impeller 110, the droplets thrown out by the centrifugal force field collide with the windward surface of the impact vane 212 and converge. At the same time, since the deflection surface of the deflection vane 213 and the windward surface of the impact vane 212 are arranged at an angle, the flow direction of the smoke changes after passing through the cooling structure 210. Due to the large inertia, the droplets in the smoke cannot quickly turn with the airflow, causing the droplets in the smoke to separate and collide with the surfaces of the impact vane 212, the cooling tube 211 and the deflection vane 213. In this process, the temperature of the cooling structure 210 decreases, which further promotes the condensation of the droplets in the smoke.

[0058] In order to drain the liquid droplets collected on the cooling structure 210:

[0059] like Figure 7-Figure 8 As shown, the condensation mechanism 200 also includes a liquid collecting structure 220; the liquid collecting structure 220 includes a liquid collecting ring pipe 221; the impact vanes 212 and the deflection vanes 213 are twisted around the axis of the cooling tube 211, so that the droplets move downward along the impact vanes 212 or the deflection vanes 213 under the drive of the airflow; the liquid collecting ring pipe 221 is connected to the bottom of the shell structure 130, and is connected to the shell structure 130 and the separation chamber; the liquid collecting ring pipe 221 is mounted on the cooling structure 210, and is used to collect the droplets moving downward.

[0060] In order to discharge the liquid droplets collected in the liquid collecting ring 221:

[0061] like Figure 8 As shown, the liquid collecting structure 220 also includes a drain valve 222; the drain valve 222 is connected to the liquid collecting ring pipe 221; the centrifugal impeller 110 drives air into the separation chamber to make the air pressure in the separation chamber greater than the external air pressure, and then the air in the separation chamber drives the liquid collecting ring pipe 221 to be discharged through the drain valve 222.

[0062] In this embodiment, the impact vanes 212 and the deflection vanes 213 are twisted around the axis of the cooling tube 211, so that the droplets on the cooling structure 210 are driven by the airflow to flow into the liquid collecting ring pipe 221 along the channel formed by the cooling tube 211, the impact vanes 212 and the deflection vanes 213. Since the liquid collecting ring pipe 221 is located below the centrifugal impeller 110, the droplets in the liquid collecting ring pipe 221 are difficult to be carried away by the airflow.

[0063] When it is necessary to discharge the droplets in the liquid collecting ring pipe 221, the liquid collecting ring pipe 221 is controlled to be connected to the outside through the drain valve 222. Since the centrifugal impeller 110 drives the external smoke into the shell structure 130, the air pressure in the shell structure 130 is greater than the external air pressure, and then the droplets in the liquid collecting ring pipe 221 are output through the drain valve 222 under the drive of the airflow.

[0064] To improve the uniformity of the load and droplet distribution on the filter element mechanism 300:

[0065] like Figure 6 As shown, the shell structure 130 includes a top plate 131, a bottom plate 132 and a guide volute 133; one end of the filter element mechanism 300 is connected to the top plate 131, and the other end is connected to the bottom plate 132; the guide volute 133 is mounted on the top plate 131 and the bottom plate 132 and is rotatably connected to the top plate 131 and the bottom plate 132; the guide volute 133 can rotate around the axis of the centrifugal impeller 110 to change the outlet position of the guide volute 133, thereby evenly distributing the load and droplets on the filter element mechanism 300.

[0066] In order to realize the rotation of the guide volute 133 around the axis of the centrifugal impeller 110:

[0067] like Figure 6 As shown, the housing structure 130 further includes a follower blade 134 ; the follower blade 134 is connected to the guide volute 133 and is used to drive the guide volute 133 to rotate under the drive of the centrifugal force field.

[0068] In this embodiment, the guide volute 133 is used to guide the direction of the airflow output by the centrifugal impeller 110 to avoid the formation of vortices or backflows in the airflow around the centrifugal impeller 110. The centrifugal force field generated by the centrifugal impeller 110 transmits a driving force in the same direction of rotation of the centrifugal impeller 110 to the follower blades 134. At the same time, the airflow output from the guide volute 133 generates a reaction force, so that the guide volute 133 rotates around the axis of the centrifugal impeller 110 under the dual action of the reaction force generated by its output airflow and the follower blades 134.

[0069] In the above process, the reaction force generated by the output airflow of the guide volute 133 and the driving force of the centrifugal force field acting on the follower blade 134 are positively correlated with the centrifugal force field output by the centrifugal impeller 110, that is, the rotation speed of the guide volute 133 increases with the increase of the output airflow intensity, and decreases with the decrease of the output airflow intensity, so that the guide volute 133 can be adaptively adjusted without the need for an additional power source or a complex control system. As a result, the components simplify the device and improve the reliability and adaptability of the device.

[0070] The guide volute 133 rotates around the axis of the centrifugal impeller 110 so that the outlet of the guide volute 133 moves around the filter element mechanism 300. At the same time, since the guide volute 133 guides the airflow to be smoothly distributed in its outlet area through the gradually expanding design, the path of the airflow output from the centrifugal impeller 110 through the filter element mechanism 300 and the outlet of the guide volute 133 is changed in real time, so that the airflow can pass through the filter element mechanism 300 at different angles and directions. In this process, the load and droplets of the airflow acting on the filter element mechanism 300 are evenly distributed, so that the wear and clogging failure rate of the filter element mechanism 300 are reduced.

[0071] In order to reduce the friction between the guide volute 133 and the top plate 131 and the bottom plate 132 during the rotation process:

[0072] The shell structure 130 also includes an upper rolling component 137 and a lower rolling component 138; the upper rolling component 137 is installed on the guide volute 133, and its rolling end is attached to the top plate 131; the lower rolling component 138 is installed on the guide volute 133, and its rolling end is attached to the bottom plate 132; the types of the upper rolling component 137 and the lower rolling component 138 include but are not limited to universal balls, and the upper rolling component 137 and the lower rolling component 138 convert the connection mode of the guide volute 133 with the top plate 131 and the bottom plate 132 into a rolling connection, thereby reducing the friction between the guide volute 133 and the top plate 131 and the bottom plate 132 during rotation.

[0073] Regarding the shape and structure of the filter element mechanism 300, in more detail:

[0074] like Figure 4 and Figure 10 As shown, the filter element mechanism 300 includes a filter element bracket 310, an arc-shaped filter element 320 and a disassembly bolt 330; one end of the filter element bracket 310 is connected to the top plate 131, and the other end is connected to the bottom plate 132; the arc-shaped filter element 320 is inserted into the filter element bracket 310 and is slidably connected to the filter element bracket 310; the arc-shaped filter element 320 is connected to the filter element bracket 310 by the disassembly bolt 330; the disassembly bolt 330 passes through the top plate 131 or the bottom plate 132.

[0075] To improve the convenience of replacing the curved filter element 320:

[0076] like Figure 1 and Figure 4 As shown, the housing structure 130 further includes an inspection door 136 ; an inspection hole is provided on the guide volute 133 ; the inspection door 136 is slidably inserted into the inspection hole and is detachably mounted on the guide volute 133 .

[0077] In this embodiment, the curved filter element 320 filters and separates droplets in the air flow passing through the curved filter element 320. When the curved filter element 320 needs to be replaced, the inspection door 136 is first separated from the guide volute 133, and then the head of the disassembly bolt 330 outside the shell structure 130 is rotated to separate the curved filter element 320 from the filter element bracket 310. Then, the curved filter element 320 on the filter element bracket 310 is replaced through the inspection hole, and then the guide volute 133 is driven to rotate around the axis of the centrifugal impeller 110, and then the position of the inspection hole on the guide volute 133 is adjusted, so that the curved filter elements 320 at different positions on the filter element bracket 310 can be replaced.

[0078] In order to improve the rotation stability of the centrifugal impeller 110:

[0079] like Figure 3 and Figure 5 As shown, the suction mechanism 100 also includes a support structure 140; the drive structure 120 includes a drive motor 121 and a drive shaft 122; the drive motor 121 is installed on the top plate 131, and its rotating shaft is connected to the drive shaft 122; the shell structure 130 also includes an air intake mounting seat 135; the air intake mounting seat 135 is connected to the bottom plate 132 and is connected to the separation chamber; the support structure 140 is connected to the air intake mounting seat 135 and is rotatably connected to the end of the drive shaft 122 away from the drive motor 121.

[0080] To reduce the impact of the support structure 140 located within the air intake mount 135 on the air entering the housing structure 130:

[0081] like Figure 5 As shown, the support structure 140 includes a slewing ring 141, a guide bend 142 and a conical air guide cover 143; the slewing ring 141 is mounted on the end of the drive shaft 122 away from the drive motor 121, and is rotatably connected to the drive shaft 122; one end of the guide bend 142 is connected to the slewing ring 141, and the other end is connected to the air intake mounting seat 135; the conical air guide cover 143 is connected to the end of the drive shaft 122 away from the drive motor 121, and covers the air intake side of the slewing ring 141.

[0082] In this embodiment, since the airflow output by the centrifugal impeller 110 needs to pass through the filter element mechanism 300 to enter the shell structure 130, this process will cause the amount of smoke that the device can process per unit time to decrease. In order to meet the smoke processing requirements of the device, it is necessary to increase the rotation speed of the centrifugal impeller 110 to offset the power loss caused by the airflow passing through the filter element mechanism 300.

[0083] However, as the rotation speed of the centrifugal impeller 110 increases, the reaction force and vibration generated by the centrifugal impeller 110 also increase. During this process, the support structure 140 provides support to the end of the drive shaft 122 away from the drive motor 121. The support structure 140 transmits and reduces the reaction force generated by the centrifugal impeller 110, and at the same time can further reduce the vibration caused by the rotation of the centrifugal impeller 110, thereby improving the stability of the centrifugal impeller 110.

[0084] When air passes through the support structure 140 and enters the shell structure 130, the guide bend 142 uses its own bending structure to guide the airflow to pass smoothly through the guide bend 142, thereby reducing the impact of the guide bend 142 on the airflow passing through it. At the same time, the bending structure of the guide bend 142 increases the structural strength of the guide bend 142 and the connection strength with the air intake mounting seat 135, thereby reducing the vibration of the support structure 140 caused by the airflow passing through the guide bend 142.

[0085] In addition, the conical air guide cover 143 covers the air intake side of the slewing ring 141, so that the airflow flowing to the drive shaft 122 and the slewing ring 141 is guided and diverted by the conical air guide cover 143, so as to reduce the pressure on the drive shaft 122 and the slewing ring 141, and at the same time reduce the vortex generated by the airflow passing through the drive shaft 122 and the slewing ring 141, thereby reducing the impact of the support structure 140 located in the air intake mounting seat 135 on the air entering the shell structure 130.

[0086] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A smoke removal device, characterized in that: It comprises a suction mechanism (100), a condensation mechanism (200) and a filter element mechanism (300); The filter element mechanism (300) is provided with a separation chamber; The condensation mechanism (200) is arranged in the separation chamber; The suction mechanism (100) is configured to drive smoke into the separation chamber and to cause the smoke to pass through the condensation mechanism (200) and the filter element mechanism (300) in sequence, so that some droplets in the smoke converge on the condensation mechanism (200) and are discharged, and the remaining droplets are separated and removed by the filter element mechanism (300) during the process of passing through the filter element mechanism (300); The suction mechanism (100) comprises a centrifugal impeller (110), a drive structure (120) and a housing structure (130); The centrifugal impeller (110) is mounted on the driving structure (120) and is located inside the housing structure (130); The driving structure (120) drives the centrifugal impeller (110) to rotate around its own axis to generate a centrifugal force field; Under the action of the centrifugal force field, smoke enters the shell structure (130), and simultaneously drives droplets in the smoke to accelerate toward the outer edge of the centrifugal impeller (110), causing the droplets to collide with each other; The filter element mechanism (300) is installed in the housing structure (130); The centrifugal impeller (110) is located in the separation chamber; The condensation mechanism (200) includes a plurality of cooling structures (210); The plurality of cooling structures (210) are distributed circumferentially around the axis of the centrifugal impeller (110) and are arranged in the housing structure (130); The cooling structure (210) is located radially outside the centrifugal impeller (110), so that the liquid droplets moving toward the outer edge of the centrifugal impeller (110) under the action of the centrifugal force field come into contact with the cooling structure (210), thereby causing the liquid droplets to cool down and condense; The cooling structure (210) includes a cooling pipe (211), an impact fin (212), and a deflection fin (213); The cooling tube (211) is used to accommodate the cooling medium and provide a cooling contact surface for the droplets; The impact wing (212) is connected to the cooling pipe (211) and is provided with a windward surface; the windward surface faces the rotation direction of the centrifugal impeller (110) and is used to receive the droplets thrown out by the centrifugal force field so that the droplets gather on the windward surface; The deflecting fin (213) is connected to the cooling pipe (211) and is provided with a deflecting surface; the deflecting surface is arranged at an angle with the windward surface and is used to change the airflow path to prevent the droplets gathered on the windward surface from being carried away by the airflow.

2. The smoke removal device according to claim 1, characterized in that: The condensation mechanism (200) further includes a liquid collecting structure (220); The liquid collecting structure (220) includes a liquid collecting ring tube (221); The impact fin (212) and the deflection fin (213) are both twisted around the axis of the cooling tube (211), so that the droplets move downward along the impact fin (212) or the deflection fin (213) under the drive of the airflow; The liquid collecting ring pipe (221) is connected to the bottom of the shell structure (130) and is in communication with the shell structure (130) and the separation chamber; the liquid collecting ring pipe (221) is sleeved on the cooling structure (210) and is used to collect liquid droplets moving downward.

3. The smoke removal device according to claim 2, characterized in that: The liquid collecting structure (220) further includes a sewage discharge valve (222); The sewage valve (222) is connected to the liquid collecting ring pipe (221); The centrifugal impeller (110) drives air into the separation chamber, so that the air pressure in the separation chamber is greater than the external air pressure, and then the air in the separation chamber drives the liquid collecting ring pipe (221) to be discharged through the sewage valve (222).

4. The smoke removal device according to claim 3, characterized in that: The housing structure (130) includes a top plate (131), a bottom plate (132), and a guide volute (133); One end of the filter element mechanism (300) is connected to the top plate (131), and the other end is connected to the bottom plate (132); The guide volute (133) is sleeved on the top plate (131) and the bottom plate (132) and is rotatably connected to the top plate (131) and the bottom plate (132); The guide volute (133) is capable of rotating around the axis of the centrifugal impeller (110) to change the outlet position of the guide volute (133), thereby evenly distributing the load and liquid droplets on the filter element mechanism (300).

5. The smoke removal device according to claim 4, characterized in that: The housing structure (130) further includes a follower blade (134); The follower blade (134) is connected to the inside of the guide volute (133) and is used to drive the guide volute (133) to rotate under the drive of the centrifugal force field.

6. The smoke removal device according to claim 5, characterized in that: The suction mechanism (100) further includes a support structure (140); The driving structure (120) includes a driving motor (121) and a driving shaft (122); The driving motor (121) is mounted on the top plate (131), and its rotating shaft is connected to the driving shaft (122); The housing structure (130) further includes an air intake mounting seat (135); The air intake mounting seat (135) is connected to the bottom plate (132) and communicates with the separation chamber; The support structure (140) is connected to the air intake mounting seat (135) and is rotatably connected to an end of the drive shaft (122) away from the drive motor (121).

7. The smoke removal device according to claim 6, characterized in that: The support structure (140) includes a slewing ring (141), a guide bend (142), and a conical guide cover (143); The slewing ring (141) is sleeved on an end of the driving shaft (122) away from the driving motor (121) and is rotatably connected to the driving shaft (122); One end of the guide bend (142) is connected to the slewing ring (141), and the other end is connected to the air intake mounting seat (135); The conical air guide cover (143) is connected to an end of the drive shaft (122) away from the drive motor (121), and covers the air intake side of the rotary ring (141).

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