65results about "Draught induction" patented technology

This utility model discloses a ventilation and anti-clogging device for a standby boiler dust collector, comprising: an inlet flue, an induced draft fan, a connecting assembly, and a limiting assembly. The induced draft fan is located at one end of the inlet flue. The connecting assembly includes a branch pipe located at the bottom of the inlet flue, with a first gate valve located in the middle of the branch pipe and a series pipe located at the bottom of the first gate valve. The limiting assembly is located at the output end of the induced draft fan and is used to restrict gas flow. The limiting assembly includes a first pipe located at the output end of the induced draft fan, with a second gate valve located at one end of the first pipe. Through the design of the branch pipe, the first gate valve, and the series pipe, this utility model allows the first gate valve to be opened during operation, enabling the induced draft fan of the adjacent operating boiler to draw away leaked flue gas and maintain a slight negative pressure inside the standby boiler. This eliminates the need to operate the standby boiler's induced draft fan, keeping the furnace and tail flue dry and thus avoiding wasted electricity.

An exhaust adaptor (2) to be attached to a front surface of an exterior case (1) of a combustion apparatus includes a duct (22) in which an exhaust passage (21) extending in an X-axis direction is defined, an inflow port (24) connected to an exhaust port (13) and communicating with the exhaust passage (21) is provided on a rear surface of the duct (22), and an outflow port (25) for discharging combustion exhaust gas flowing through the exhaust passage (21) to the outside is provided on one end surface of the duct (22) in the X-axis direction.SOLUTION: A dividing plate 27 for dividing the exhaust flow passage 21 in the longitudinal direction is provided in the duct 22. A plurality of first communication holes 271 for communicating the exhaust passage part 21r on the rear side of the division plate 27 with the exhaust passage part 21f on the front side are provided in the division plate 27 at intervals in the X-axis direction. A second communication hole 272 for communicating the rear side exhaust gas flow passage part 21r with the front side exhaust gas flow passage part 21f is provided in the dividing plate 27 in the vicinity of the inflow port 24.SELECTED DRAWING: Figure 2

An exhaust plume control structure includes a mounting member configured to mount to an exhaust flow source. A diverter member is coupled to the mounting member to radially direct an initial exhaust flow exiting from the exhaust flow source radially outward. A plurality of peripherally spaced, radially extending vanes are coupled to the mounting member and radially outward of the diverter member to separate the radially outward directed initial exhaust flow into a plurality of additional exhaust flows. Each vane has a radially diverging cross-section. Each of the plurality of additional exhaust flows has a same radial exit velocity. The structure reduces exhaust flow velocity and may provide back pressure to the initial exhaust flow. The structure has a sound power level of less than 115 dBA. A power generating plant including the structure is also disclosed.

The utility model discloses an induced draft fan outlet baffle door which comprises a door plate, an open groove is formed in the door plate, a first sealing plate is movably connected in the open groove, symmetrical second sealing plates are movably connected in the open groove, the first sealing plate is movably connected to the second sealing plates, a rotating shaft is fixedly connected to the side face of the door plate, and the rotating shaft is fixedly connected to the side face of the door plate. A door handle is fixedly connected to the door plate, a third rotating groove is formed in the sealing batten, a first gear is fixedly connected to the other end of the first rotating rod, a second gear is correspondingly and fixedly connected to the other end of the second rotating rod, and the first gear and the second gear are sleeved with a movably-connected rotating belt. Through the structure, leakage points are effectively reduced, the sealing flexibility and adaptability are improved, the sealing efficiency is improved, the service life of the baffle door is prolonged, the maintenance cost is reduced, the structural stability is improved, and the operation convenience and efficiency are improved.

A breather pipe cap (1) comprises: a base (2); an attachment structure (3) depending from the base (2) for removably connecting the breather pipe cover (1) to a cooking appliance (10); and a frame (4) protruding from the base (2) to at least partially surround the vent tube (11). The base (2) comprises an opening (20) to receive a vent pipe (11) of the cooking appliance (10), and the attachment structure (3) surrounds the opening (20). The frame (4) comprises a discontinuity (41) for ensuring the air flow of the breather pipe (11).

The invention provides a compact self-mixing type flow guide air bellow device. The compact self-mixing type flow guide air bellow device comprises an upper flow guide air bellow and a lower flow guide air bellow which are fixed to the inner wall of a hot air pipeline and arranged at intervals. The upper flow guide air bellow and the lower flow guide air bellow are respectively positioned on an inner ring and an outer ring of the bending section and are concentrically arranged with the bending section; hot air channels are formed between the upper flow guide air bellow and the lower flow guide air bellow and between the upper flow guide air bellow and the inner side wall of the hot air pipeline and between the lower flow guide air bellow and the inner side wall of the hot air pipeline, so that the direction of hot air entering the hot air pipeline is changed and hot air is primarily shunted; an upper flow guide air box air inlet and a lower flow guide air box air inlet are formed in the positions, corresponding to the two side walls of the upper flow guide air box and the lower flow guide air box, of the hot air pipeline correspondingly and used for being communicated with the cold air pipeline so that cold air entering the hot air pipeline can flow to the horizontal section after being mixed with hot air. The integrated flow guide air bellow device with the functions of flow guide, resistance reduction and cold and hot air mixing is designed creatively from the source, space is saved, and air duct resistance is reduced.

CHIMNEY ENCLOSURE The invention relates to an enclosure (110) for a chimney (100) comprising a stack (102) and a cap (104). The enclosure (110) has a side wall (110a) through which at least one window (116) passes, forming a flue open at both ends. The lower end forms a base (110b) fixed to the top of the stack (102), and the upper end forms a seat (110c) onto which a lower portion of the cap (104) is fixed. The base (110b) defines a lower opening (112a), and the seat (110c) defines an upper opening (112b). For each window (116), there is a hatch (114) removably fixed to the side wall (110a). Fig. 2

A high efficiency heating apparatus for heating fluids and cooking mediums, such as oil or shortening within a fryer, includes one or more natural draft combustion chambers that are affixed to exterior surfaces of a fry tank.

An aircraft includes a fuselage and at least one primary wing having an upper surface, at least one recess in the upper surface and at least one conduit in fluid communication with the at least one recess. At least one ejector is disposed within the at least one recess and is configured to receive compressed air via the at least one conduit.

The present invention provides a chimney that allows for easy connection of multiple horizontal pipes and ensures high exhaust efficiency by suppressing the stagnation of exhaust gas G within the flue, while maintaining standardization of components and easily setting the cross-sectional area according to the exhaust volume. [Solution] The chimney consists of multiple cylindrical chimney units connected together, comprising a lower chimney unit 10 with a rectangular cross-section, an upper chimney unit 20 with an oval cross-section, and a shape-changing joint 30 connecting them. The lower chimney unit 10 improves the ease of installation of horizontal pipes 40, 40 by providing openings 12a, 12b in the flat chimney walls 11a, 11c, and prevents interference of exhaust gas G by an internal partition plate 13. The upper chimney unit 20 has a pair of arc-shaped sections (arc-shaped chimney walls 21a, 21b) and a pair of straight sections (flat chimney walls 22a, 22b), and by adjusting the width dimension W of the straight sections while keeping the radius of curvature of the arcs fixed, the cross-sectional area according to the exhaust volume is set while ensuring the commonality of parts.

The invention is a pre-insulated construction of the end of the duct of channeling installations in rooms and buildings, constituting a roof outlet - cowl that enables instalation - ventilation ducts to be provided through the roof plane and its protected. The invention is used as roof outlet on building roofs, especially in warehouses, industrial buildings, and utility buildings, to protect the ends of various types of installations so ducts such as ventilation, air conditioning, sanitary, and electrical ducts, which are provided inside the outlet, particularly from weather conditions.

The utility model discloses a kind of boiler induced draft equipment, including induced draft fan, air inlet pipe and air outlet pipe are equipped on the induced draft fan, the mouth of air inlet pipe is equipped with filter screen, dust collection head movable along XY axis is equipped above the filter screen, bristle is ringed and equipped at the bottom edge of dust collection head, the bottom of dust collection head is air inlet end and bristle contacts filter screen top surface, the top of dust collection head is equipped with the connecting pipe connected with external suction equipment. The utility model has the characteristics of automatically cleaning dust accumulated on filter screen, avoiding filter screen blockage induced draft fan air inlet pipe, improving air inlet efficiency, making boiler combustion more sufficient, to further improve the combustion efficiency of boiler etc.

The invention discloses a gas furnace control method and system suitable for a multi-load working condition, and the method comprises the steps: collecting the real-time concentration of flue gas generated in the operation process of a gas furnace body, and determining the real-time operation load of the gas furnace body in combination with the opening degree of a gas valve; establishing a load-optimal target concentration curve, and matching the optimal target concentration corresponding to the real-time operation load according to the load-optimal target concentration curve; and dynamically adjusting the rotating speed of the smoke exhaust fan according to a comparison result of the real-time concentration and the optimal target concentration. The problem that in an existing gas furnace control scheme, a smoke exhaust fan rotating speed control mode based on a single threshold value can only adapt to a single gas furnace load working condition point and is difficult to cope with parameter dynamic changes caused by gas furnace load complex fluctuation is solved.

A fan unit a nozzle assembly including a plurality of nozzles configured to receive an air flow and to expel the air flow through a plurality of outlets corresponding to the plurality of nozzles. A controller configured to control a longitudinal movement of a nozzle of the plurality of nozzles based on an operating condition associated with the fan unit.

To provide a technique capable of suppressing vibration of a motor.SOLUTION: The combustion heat source machine 2 includes a burner 20, a combustion chamber 12 accommodating the burner 20 and having an inner intake port 70 through which air to be supplied to the burner 20 flows in, and an exhaust port 76 through which combustion exhaust gas from the burner 20 flows out, a combustion fan 60 disposed near the exhaust port 76 and causing the combustion exhaust gas to flow out from the combustion chamber 12, and a body case 10 accommodating the burner 20, the combustion chamber 12, and the combustion fan 60. The combustion fan 60 includes an impeller 40, a fan case 54 that houses the impeller 40, a drive shaft 43 coupled to the impeller 40, a motor 42 that rotates the drive shaft 43, and a motor support member 44 that is fixed to the fan case 54 and supports the motor 42. The motor support member 44 is also fixed to the main body case 10.SELECTED DRAWING: Figure 1

A method and apparatus for venting around a chimney termination point. The invention includes a chimney sleeve having a first opening and a second opening opposite the first opening, both the first opening and the second opening capable of fitting a vertical chimney pipe with a clearance. The sleeve can be fitted with a support collar and various other attachments, including a screen extension and rain cover. The gasses heated by the chimney pipe may vent through the sleeve. The sleeve also serves to force a clearance around the chimney pipe, which prolongs the realized lifespan of the chimney pipe and further helps prevent fires.

The amount of waste heat recovered is increased without increasing the heat transfer area of ​​the latent heat recovery heat exchanger. [Solution] The HO gas (water vapor) contained in the combustion exhaust gas generated by combustion is recovered as drain (moisture) generated by heat exchange at the outlet of the latent heat recovery heat exchanger (latent heat recovery device) 14. This drain (moisture) is injected into the high-temperature exhaust gas section on the primary side of the latent heat recovery heat exchanger (latent heat recovery device) 14 and the exhaust heat recovery device 12, and on the secondary side of the heat source equipment (combustion device) 10 such as a boiler, and vaporized. This process is repeated multiple times, and the recovered drain (moisture) generated by the latent heat recovery heat exchanger (latent heat recovery device) 14 is circulated within the combustion exhaust gas system, making it possible to increase the amount of HO gas (water vapor) in the exhaust gas supplied to the latent heat recovery heat exchanger (latent heat recovery device) 14 to the amount that maximizes the latent heat recovery.

The invention relates to a biomass boiler (1) with an exhaust gas duct (3) which, together with a combustion chamber (2), forms a hot gas zone. Outside the hot gas zone, a plasma chamber (5) is provided, connected to the exhaust gas duct (3), for generating a low-temperature plasma. A blower (6) is provided for generating a conveying flow (7) that passes through the plasma chamber (5) to convey the low-temperature plasma into the exhaust gas duct (3). The plasma chamber (5) is connected to an ambient air supply (10). To reduce potential odor emissions from existing biomass boilers (1) in a space-saving and retrofittable manner, it is proposed that the plasma chamber (5) be connected to the boiler housing (4) or supported by the exhaust gas duct (3).

To connect a secondary heat exchanger and an exhaust top, and a neutralizer by a drain exhaust pipe without a trouble.SOLUTION: A neutralizer 80 is arranged at a front side of a hot-water supply primary heat exchanger and below a hot-water supply secondary heat exchanger 32, and a connection port 81a of a first drain pipe 70 is horizontally formed at its upper part. The first drain pipe 70 has a bent pipe part 71 arranged behind an exhaust top 36, and bent downward after being connected to a drain discharge port 67 and withdrawn rearward, and a straight pipe part 72 which is bent horizontally at an upper part of a neutralizer 80 from a lower end of the bent pipe 71, and extends in a left-and-right direction. The straight pipe part 72 is connected to the connection port 81a of the neutralizer 80, an upper end of a second drain exhaust pipe 74 is connected to a lower face of an upper casing 19 of the hot-water supply secondary heat exchanger 32, and a lower end of the second drain exhaust pipe 74 is connected to the straight pipe 72 of the first drain exhaust pipe 70.SELECTED DRAWING: Figure 9

Method for accelerating and diluting an exhaust air stream (4), comprising: - Accelerating an airflow (10) with an airflow blower system (11), - Aligning the accelerated airflow (10) with an exhaust airflow (4) exiting from an exhaust air outlet (8) such that a - Acceleration and dilution of the exhaust air stream (4) downstream of the exhaust air stream outlet (8) by the accelerated air stream (10) is carried out, characterized in that an ambient pressure and / or a wind speed is detected and that the power of the air stream blower system (11) is regulated depending on the ambient pressure and / or the wind speed.

The subject-matter of the present invention is a mounting element for fastening of a mechanical fan for a roof ventilation device, comprising a central section (3) with a mounting socket (7) and mounting holes (8), an annular section (1) surrounding the central section (3) and guide vanes (2) connecting the central section (3) to the annular section (1).

We provide chimneys that improve exhaust capacity at a low cost. [Solution] A chimney 1 is provided with an exhaust amplification device 10 inside a cylindrical body 2 having an inner circumferential surface 3, wherein the exhaust amplification device 10 comprises a supply unit 20 for supplying gas, a curved surface 15 that extends in an annular shape and protrudes toward the center of the cylindrical body 2, and an ejection unit 18 that generates an annular jet by ejecting the gas supplied from the supply unit 20 along the curved surface 15, and the exhaust amplification device 10 is configured such that the jet of gas ejected from the ejection unit 18 flows along the curved surface 15.

A combustion heat source machine (2) disclosed in the present specification comprises: a burner (20); a combustion chamber (12) that accommodates the burner (20), the combustion chamber (12) having an inner intake port (70) into which air supplied to the burner (20) flows, and an exhaust port (76) through which combustion exhaust from the burner (20) flows out; a combustion fan (60) that is disposed near the exhaust port (76) and causes the combustion exhaust to flow out from the combustion chamber (12); and a body case (10) that accommodates the burner (20), the combustion chamber (12), and the combustion fan (60). The combustion fan (60) is provided with: an impeller (40); a fan case (54) that accommodates the impeller (40); a drive shaft (43) that is connected to the impeller (40); a motor (42) that rotates the drive shaft (43); and a motor support member (44) that is fixed to the fan case (54) and supports the motor (42). The motor support member (44) is also fixed to the body case (10).

The present disclosure provides a flow accelerator device comprising an inverted aerofoil-shaped cross-section formed by one or more panels, defining a leading edge, trailing edge, upper surface, and lower surface, where the lower surface extends further than the upper surface. Mechanically connected to a base fixed upstream of a duct, the device generates low pressure within the duct to enhance air extraction. By leveraging aerodynamic principles, the device increases airflow efficiency in chimneys, fireplaces, ventilation towers, and similar structures. Its application includes buildings such as residential houses, offices, and industrial facilities, providing effective airflow management and smoke extraction. The flow accelerator operates passively, requiring no external power, making it a sustainable solution for improving indoor air quality and smoke removal while maximizing energy efficiency.

The utility model discloses a superconductive energy-saving fuel oil steam generator, which relates to the technical field of steam equipment and comprises a heating mechanism, the top of the heating mechanism is fixedly connected with a preheating and cooling mechanism, and one side of the heating mechanism is fixedly connected with a control cabinet; the heating mechanism comprises a water tank. Through cooperation of the steel-copper composite spiral heat-conducting fin, the first smoke transfer chamber, the first smoke pipe, the second smoke transfer chamber, the second smoke pipe and the third smoke transfer chamber, high-temperature smoke enters the first smoke transfer chamber, and the outer wall of the smoke transfer chamber is heated through the steel-copper composite heat-conducting fin to exchange heat with a water source; afterwards, the smoke heats the outer wall of the smoke pipe through a steel-copper composite spiral heat-conducting fin, and meanwhile, the flow speed and track of the smoke are disturbed through ventilation holes, so that the smoke fully scours the outer wall of the smoke pipe, and the temperature of the smoke pipe is increased; and then the smoke sequentially passes through the smoke pipe II and the smoke transfer chamber III, so that the flow length of the smoke is increased, the heat energy absorption effect is improved, and the heat transfer effect is better achieved.

The utility model relates to the technical field of air inducing and dust removing equipment, and particularly discloses a self-dust-removing induced draft fan device which comprises an induced draft fan. The spray pipe comprises a contraction section, a throat part and a diffusion section which are sequentially arranged towards one side far away from the induced draft fan; the suction pipe comprises a leading-in pipe connected to the bottom of the spray pipe; the plugging mechanism is mounted between the induced draft fan and the spray pipe and comprises a plugging seat, a plugging core is slidably arranged in the plugging seat, one side of the plugging core is connected with a pull rod, and the pull rod slidably extends to the outside of the plugging seat to be connected with a moving strip; according to the structure arrangement of the induced draft fan, the spray pipe and the suction pipe, the high-speed and low-pressure characteristics of the throat part of the Venturi pipe are utilized, dust-containing gas is directly adsorbed through the introduction pipe, dust is prevented from entering the induced draft fan, a fan impeller and a flow channel are prevented from being blocked from the source, arrangement of extra dust removal equipment is reduced, and the position of the blocking core body is adjusted through the moving piece; dust-containing gas can be isolated under the condition that the induced draft fan is not disassembled, and maintenance or replacement is convenient.

A heating system is configured to produce heated fluid. The system includes a source of primary fluid, a diffusing structure comprising an outlet structure out of which the heated fluid flows, at least one conduit coupled to the source and the diffusing structure and configured to introduce to the diffusing structure the primary fluid, and an intake structure coupled to the diffusing structure and configured to introduce to the diffusing structure a secondary fluid accessible to the system. The heated fluid includes the primary and secondary fluids.