42 results about "Plenum space" patented technology

To provide a water shielding device capable of preventing the position of a water absorption expansion material from being deviated or being washed away even when a water flow surging to a building is violent and a large water flow splashes in the horizontal direction, and capable of reliably exhibiting water shielding performance.SOLUTION: A water shielding device for water drip foundation includes: a vent hole for communicating an underfloor space of a building and the outside air; and an outside air opening in communication with the vent hole via a ventilation space, for introducing the outside air outside the building. The water shielding device includes an opposing piece for partitioning the vent hole and the outside air opening in the ventilation space and having an opposing surface opposing to the vent hole. On the opposing surface, a water absorption expansion material is mounted which expands by absorbing water and closes the vent hole.SELECTED DRAWING: Figure 3

An air fryer includes an air fryer body and a ventilation system. The air fryer body includes a cooking container and a ventilation space divided into a first space, a second space, and a heat dissipation space. The ventilation system includes a first fan and a second fan. The first fan is located in the first space, and the second fan is located in the second space to drive air circulation in the second space and the heat dissipation space. The ventilation system includes an air outlet element having a first air outlet and a second air outlet. The first air outlet is connected to the first space, and the second air outlet is connected to the second space. A protruding enclosing wall of the air outlet element on a side of the air outlet element facing the second space and the heat dissipation space is elliptical.

The application relates to the technical field of building ventilation, in particular to an energy-saving air purification and ventilation integrated system, which comprises a wind cap base and a wind cap body, wherein the wind cap body comprises a supporting rod arranged on the wind cap base; a top cover and a base are sequentially sleeved on the supporting rod from top to bottom, and the top cover and the base can rotate around the supporting rod; a plurality of blades are rotationally connected between the top cover and the base, the plurality of blades are arranged along the circumference of the supporting rod, the top cover, the base and the plurality of blades jointly enclose a ventilation space, the ventilation space is communicated with the wind cap base, ventilation openings are formed between adjacent blades, the ventilation openings are communicated with the ventilation space; a plurality of supporting springs are connected between the base and the supporting rod, the plurality of supporting springs are arranged along the circumference of the supporting rod, the supporting springs extend along the radial direction of the supporting rod, and the inner ends of the supporting springs are rotationally connected with the supporting rod, and the outer ends of the supporting springs are fixedly connected with the base. The elasticity deformation of the supporting springs improves the wind resistance.

The utility model discloses a high-efficiency radiator, which relates to the technical field of radiators, aims to solve the problem of limited radiating effect of the traditional radiator, and is characterized in that a flow guide space I communicated with a ventilation slot I is formed between a fixed plate and a flow guide plate which are positioned on the same side of a radiating chamber; a plurality of first clamping grooves communicating with the first ventilation grooves are formed in the length side of the heat dissipation chamber in a penetrating mode, heat conduction plates are detachably connected into the first clamping grooves, heat dissipation fins are detachably connected into the second clamping grooves, and second flow guide space is formed between the flow guide plate and the adjacent clamping plate. A first ventilation space communicating with the second ventilation groove and the second flow guide space is formed between every two adjacent heat dissipation fins. Heat in heating equipment can be conducted out in time due to the high heat conduction performance of the radiator, a good air circulation effect is formed in the radiator body through the first flow guide space and the second flow guide space, the temperature absorbed by the radiator body can be rapidly taken away, and the continuous and efficient heat dissipation effect of the radiator is achieved.

The invention relates to a fuel rod for a water-cooled water-moderated nuclear reactor. In the proposed fuel rod, there is disposed below the fuel column a spacing element which forms a bottom plenum space and which is pressed against a bottom plug by the fuel column with the aid of a fastening spring. The spacing element consists of a housing in the form of a tube, which has stoppers press-fitted to the ends thereof, said stoppers having axially aligned through-openings and having slots in the outer end faces thereof for admitting helium into the inner cavity of the spacing element. The bottom plug has a stepped profile, and the middle portion thereof, which is disposed outside the cylindrical cladding, has a diameter that is greater than the outside diameter of the cylindrical cladding. The bottom end of the bottom plug has a toroidal surface, the cross-section of which is not greater than the outside diameter of the cylindrical cladding. The technical result is that of increasing the fuel charge, improving the energy efficiency and increasing the operating reliability and safety of a fuel rod for a water-cooled water-moderated nuclear reactor, as well as simplifying the assembly process, and facilitating repair in the event of depressurization of the fuel rod.

The utility model relates to a ventilation and air exchange device related technical field, concretely is a kind of ventilation and air exchange device for dehydration workshop, including flange, axial fan cover and impeller mounting frame and installation component, fixed place on the flange is equipped with axial fan cover, in the utility model, axial fan cover and ventilation axial fan whole assembly are on ventilation and air exchange device, ventilation and air exchange device drives ventilation axial fan and axial fan cover, utilize the axial thrust generated when impeller rotates, push air along axial flow, realize the ventilation and air exchange of large area, user again folds collapsible wing type ventilation cover to flange, make ventilation axial fan expose to dehydration workshop, not only can expand ventilation and air exchange device ventilation space, ventilation cover and built-in hole can also expand ventilation and air exchange air port, expand dehydration workshop ventilation and air exchange air port, axial fan cover and ventilation axial fan improve dehydration workshop ventilation speed.

To keep precision for detecting a temperature of a fixing device while simplifying the configuration of the fixing device.SOLUTION: An image-forming device 1 provides a thermopile hole 35 for connecting a heat-insulating duct internal space 32 and the side of a fixing unit 17 in a direction that opposes a thermopile section 60, and a holding member 42 for holding the thermopile section 60 supported by a heat-insulating duct rear sideplate 30b in the heat-insulating duct internal space 32, the holding member 42 is provided between an air path breaking ridge line 50 and a duct joining surface 44S formed continuously from the side of an exhaust fan 23 to the side of an intake fan 22 relative to the thermopile hole 35, and the holding member 42 and the heat-insulating duct rear sideplate 30b in the side of the intake fan 22 relative to the thermopile section 60, and a holder ventilation space 52 and a cover ventilation space 59 that connects the heat-insulating internal space 32 and the thermopile hole 35, and branches cooling air Ca taken in by the intake fan 22 and allows the cooling air to go toward the thermopile hole 35 are formed.SELECTED DRAWING: Figure 8

The invention of the present application provides a fuse in which a fused section of a fuse element is visually inspectable from the outside and, furthermore, a housing is not readily damaged when the fused section of the fuse element burns through. The fuse (900) comprises a fuse element (100) and a housing (500) in which a fused section (120) of the fuse element (100) is received, and is characterized in that a visual inspection window (240) is provided in the housing (500) at a position corresponding to the fused section (120), a cover element (600) overlapping the visual inspection window (240) is attached to the housing (500), and a ventilation space (X1) is formed between the cover element (600) and the housing (500).

This description relates to a module and system for indoor cultivation. In some embodiments, an indoor cultivation module includes a container compartment divided into a growth zone and a control zone, where a growth zone comprises a chassis with a plurality of horizontal and vertical frame members configured to support a plurality of trolleys, each with a tray containing a plurality of plants, and where the control zone includes an integrated air blowing unit for directing air between a suspended ceiling and a structural ceiling of the indoor cultivation module and an air conditioning unit configured to condition an atmosphere in the growth zone by producing fresh dry air that is injected into a plenum space located between the suspended ceiling and a structural ceiling.

A stiffener (30) extending in the vertical direction is embedded in a rear surface (2a) near both side edges of a concrete panel (2) such that a part of the stiffener protrudes to the indoor side. A felt mat-like fireproof covering material (70) superimposed on the indoor side is fastened to the rear surface (2a) of the concrete panel (2) by fasteners (9) composed of a concrete screw and a washer. The fasteners (9) are respectively arranged at a predetermined pitch in vertical rows closer to the end edge side than the stiffener (30) and closer to the center side than the stiffener (30). The fasteners (9) in each row are arranged in a zigzag manner with the left and right heights thereof being different from each other. As a result, hot air flowing into the joints from the outdoor side is prevented from flowing into a ventilation space beyond the stiffeners (30) while ensuring an appropriate ventilation space between the left and right stiffeners (30).

The invention relates to a ventilation profile for actively ventilating and / or extracting air from a building waterproofing system, wherein the building waterproofing system protects and / or seals a wall of a building, in particular a house, on an outer surface of the wall by means of a moisture-proof or moisture-resistant protective layer against penetrating moisture from surrounding soil, wherein the protective layer is arranged in a protective layer plane spaced from the wall by means of spacers between the wall and surrounding soil and thus a ventilation space is formed between the protective layer and the wall, wherein a connecting strip is arranged on an upper connecting line of the protective layer along a connecting axis and the protective layer is connected to the wall at an upper connecting line by means of the connecting strip, wherein the connecting strip has at least one fluid-carrying ventilation access to the ventilation space.Furthermore, the invention relates to a building seal with such a ventilation profile and a method for actively ventilating and / or de-ventilating a building seal in several steps.

To provide a sash unit capable of easily constructing an air flow window system with minimum construction.SOLUTION: The sash unit 10 is attached to a window 3 of a new or existing building, and includes a sash body 11 having an upper frame part, a lower frame part side 11b and a pair of side frame parts, a panel body 12 attached to the inside of the sash body 11 and defining a ventilation space 13 between the panel body 12 and a window glass 5 provided in the window 3, and the lower frame part side 11b. This sash unit 10 has an introducing passage 14 communicating with a room 6 of a building and a ventilating space 13, a blower 30 arranged inside a lower frame part 11b and sending air in the room 6 to the ventilating space 13 through the introducing passage 14, and a discharge passage arranged in an upper frame part and communicating with the ventilating space 13 and the room 6.SELECTED DRAWING: Figure 5

A ventilation apparatus includes a housing having an outdoor air inlet, an outdoor air outlet, an indoor air inlet, and an indoor air outlet; a partition dividing an inner space of the housing into a ventilation space and an air conditioning space; a total heat exchange element inside the ventilation space and having four side edges respectively disposed to face four side surfaces of the housing; four partition walls configured to respectively connect the four side edges of the total heat exchange element and the four side surfaces of the housing to partition the ventilation space into an outdoor air discharge space, an indoor air inlet space, and an indoor air discharge space; guide ducts respectively provided in the outdoor air discharge space, the indoor air inlet space, and the indoor air discharge space; and a bypass duct branching from the guide duct provided in the indoor air inlet space.

This blower unit comprises: a box part (11) disposed in a plenum space above a target space (S); and a nozzle part (20) which is disposed below the box part (11) and which blows air in the box part (11) downward into the target space (S). The nozzle part (20) has: a tapered tubular part (24) formed such that the opening area thereof increases proceeding from above to below; a duct expansion part (26) disposed on the inner side of the tubular part (24) and forming annular air flow paths (P1 to P4) that expand outward in the radial direction of the tubular part (24) proceeding from above to below; and an airflow regulating part (27) provided below the tubular part (24) to regulate the flow of the air flowing through the tubular part (24) so as to be oriented in the tube axis direction.

The premixing burner comprises a burner shell body, a burner shell core seat and a burner core, a premixing cavity is defined by the burner shell body, the burner shell core seat and the burner core, a premixing part is installed in the premixing cavity and divides the premixing cavity into an upper premixing cavity and a lower premixing cavity which are distributed up and down, the burner core is provided with an air outlet communicated with the upper premixing cavity, and the lower premixing cavity is provided with an air outlet communicated with the lower premixing cavity. The furnace shell body is provided with a gas inlet communicated with the lower premixing cavity, a ventilation space is formed in the bottom of the upper premixing cavity, the premixing part is provided with a plurality of air guide channels circumferentially arranged around the axis of the premixing part at intervals, air inlets of the air guide channels are formed in the bottoms of the air guide channels and communicated with the lower premixing cavity, and the bottoms of the air guide channels are communicated with the lower premixing cavity. The ventilation space is arranged on the radial outer side of the air guide channel, and an air outlet of the air guide channel faces the ventilation space and communicates with the ventilation space. The utility model aims to provide a premixing furnace end which has the effects of enhanced mixing effect, simple structure and low cost.

The utility model discloses a combined type aluminum alloy door and window, which relates to the technical field of doors and windows and comprises an outer frame, first limiting frames are fixed on two sides inside the outer frame, an inner frame is connected inside the outer frame, a first limiting block penetrates through one side of the inner frame, a second limiting block is fixed on one side of the first limiting block, and a casement window is mounted inside the inner frame. A second limiting frame is fixed to one side of the casement window. Through the arrangement of the inner frame and the casement window, the casement window is an inward-opening window, so that the casement window can be opened inwards to clean the two faces of the window when the window is dirty, the casement window is simple, convenient and free of danger, the casement window is driven by the inner frame to move left and right to be opened and closed during normal use, and the casement window is similar to a sliding window. The indoor space is prevented from being influenced when the inward-opening window is opened for ventilation; however, if a larger ventilation space is needed, the casement window can be opened to realize the larger ventilation space; the window is convenient to clean, simple, convenient, safe and flexible to use so as to deal with more conditions.

A ventilation system comprises: a ventilation device (3, 200) that ventilates a ventilation space, which is a destination for the ventilation; an air sensor (5, 211) that detects a physical quantity of a detection object in the air of the ventilation space and outputs a detection value corresponding to the detected physical quantity; and a sensor calibrator (100, 211) that performs a calibration against the detection value output by the air sensor. The sensor calibrator calibrates the detection value, which is detected by the air sensor in the ventilation space in a state without a source of change that alters the physical quantity of the detection object, at least once during ventilation and once during ventilation termination by the ventilation device.

The present disclosure discloses a handle system, a handle assembly, and an anti-freeze method for a handle. The handle system includes a base, a handle, and an anti-freeze control unit. The base defines a base cavity. The handle is arranged in the base cavity, and a ventilation space is provided between the base and an outer periphery of the handle. The anti-freeze control unit allows a gas to enter the ventilation space according to environmental information that determines whether freezing will occur, so as to prevent the handle from being frozen. The anti-freeze control unit of the handle system of the present disclosure controls the gas to enter the ventilation space surrounding the handle according to the environmental information that determines whether freezing will occur, so as to prevent the handle from being frozen. The environmental information that determines whether freezing will occur includes weather forecast, thereby increasing the likelihood of predicting freezing of the handle to effectively prevent the handle from being frozen.

This utility model discloses an experimental fume hood with volatile concentration monitoring, comprising: a cabinet body, a working space on the cabinet body, a cover plate covering the front side of the cabinet body, a ventilation space between the cover plate and the working space, multiple ventilation holes communicating with the ventilation space on the front side of the working space, an installation plate above the cabinet body and above the working space, a concentration monitoring unit in the middle of the installation plate, symmetrical air guides on the installation plate, an air guide within the ventilation space, an exhaust unit above the ventilation space, and a moving mechanism on the installation plate that can move the air guides upwards. Compared with the prior art, this invention can detect the volatile concentration of gases inside the cabinet, ensuring that the concentration of harmful gases inside the fume hood is kept at a low level, while effectively exhausting harmful gases outside the cabinet.

The application discloses a modular prefabricated cabin substation and relates to the technical field of substations, which comprises a prefabricated cabin, air conditioners installed on both sides of the prefabricated cabin, a driving mechanism connected in the prefabricated cabin, a plurality of movable bases slidingly connected to the inner bottom of the prefabricated cabin and connected to the output end of the driving mechanism through magnetic action, and a ventilation mechanism comprising a hydraulic rod installed on the top of the movable base and having an installation housing fixedly connected to the output end of the hydraulic rod. The ventilation mechanism is arranged, the output end of the hydraulic rod is elongated, the installation housing is lifted, the ventilation space between the installation housing and the movable base is increased, airflow is conveniently circulated through the ventilation space, the first guide plate is driven to rotate through the gear transmission structure, airflow passing between the two first guide plates is guided and pressed, the speed of the airflow flowing into the ventilation space is increased, and the heat dissipation effect on the bottom of the electrical equipment is improved.

The utility model discloses a form can switch's access control ware, including display module and control module, and control module sets up at the back of display module and is relatively display module rotation setting, control module includes the back casing and front cover that connect with each other, and the back casing and front cover are provided with control mainboard between, and the back casing is evenly provided with first vent, and the front cover is evenly provided with second vent, and the front cover is provided with ventilation space between display module, and ventilation space and second vent are interconnected, control module is provided with the locking module for with display module cooperation to restrain control module relative display module rotation. Control module rotation setting can make control module rotate to support position to support in desktop position etc. through control module as fulcrum. Meanwhile, the ventilation space is provided between the front cover and display module, can make external air faster and the space between the front cover and back casing carry out air exchange, improve the area of air circulation, thereby improve the heat dissipation efficiency.

To provide a control method for reducing an energy consumption in a ventilation of a ventilated space.SOLUTION: A control method according to the disclosure for controlling a plurality of ventilation devices for ventilating the ventilated space, includes: an acquisition step for acquiring a required ventilation amount in the ventilated space; a determination step for determining whether the sum of a first air amount which is the smallest ventilation amount of each of the plurality of ventilation devices is the required ventilation amount or more; and a first ventilation implementation step for, when the determination step determines that the sum of the first air amount is the required air amount or more, operating at least one of the plurality of ventilation devices at the first air amount during a predefined period of time to bring the ventilation amount in the ventilated space to the required ventilation amount. In the first ventilation implementation step, a ventilation air amount of each of the plurality of ventilation devices is set at the first air amount as priority. When the sum of the first air amount is larger than the required ventilation amount, an operation of at least one of the plurality of ventilation devices is turned off.SELECTED DRAWING: Figure 3

To improve an amount of heat exchange between a refrigerant and air.SOLUTION: An outdoor heat exchanger includes a plurality of heat transfer tubes disposed in a ventilation space through which air flows, and an expansion valve side header 21 to which the plurality of heat transfer tubes are joined. A plurality of flow paths arranged in a ventilation direction 20 in which air flows are formed inside each of the plurality of heat transfer tubes. A circulation flow path 45 into which a low-pressure gas-liquid two phase refrigerant flows, a plurality of insertion spaces 46 into which one end of each of the plurality of heat transfer tubes is respectively inserted, and a plurality of introduction holes 62 that cause the circulation flow path 45 to communicate with the plurality of insertion spaces 46 are formed inside the expansion valve side header 21. The plurality of introduction holes 62 are formed on the leeward side so that the low-pressure gas-liquid two phase refrigerant flowing into each of the plurality of insertion spaces 46 flows from the leeward side to the windward side in the ventilation direction 20.SELECTED DRAWING: Figure 5

To provide a fastening structure for a fire-resistant covering material, which is inexpensive and excellent in workability, can effectively prevent hot air flowing into a joint from the outside from flowing over the stiffener into the ventilation space while securing an appropriate ventilation space between stiffeners installed near both side edges on the back side of a concrete panel. [Solution] A felt mat-like fire-resistant covering material 70 that covers the back surface of the concrete panel and the protruding portions of both stiffeners from the indoor side is fastened to the back surface 2a of the concrete panel 2 from the indoor side with fasteners 9 consisting of concrete screws 91 and washers 92. The fasteners 9 are arranged in a vertical row at a predetermined pitch so as to straddle the stiffeners 30, on the edge side of each stiffener 30 and on the central side of each stiffener 30. The fasteners 9 on the edge side and the fasteners 9 on the central side have individual heights that differ from each other, so that at least one fastener 9 on either side is arranged within the adjacent vertical spacing of the fasteners 9 on the other side.

The utility model provides a kitchen air conditioner, and belongs to the technical field of household appliances. Comprising a shell, a mounting plate, a fan bracket and a cooling fan, the shell is provided with an air conditioner heat cavity and a smoke suction cavity. The mounting plate is arranged in the shell, the first surface of the mounting plate faces the air conditioner hot cavity, and the second surface of the mounting plate faces the smoke suction cavity; a communication port is formed in the mounting plate and can communicate with the air conditioner hot cavity and the smoke suction cavity; the cooling fan is arranged on the first surface of the mounting plate through a fan support, a ventilation space is arranged between the cooling fan and the mounting plate, and the ventilation space communicates with the communicating opening. The cooling fan is lifted by using the fan bracket, so that the ventilation space between the cooling fan and the mounting plate is increased, the flowing path of hot air is increased, the flowing time of the hot air is prolonged, the heat exchange efficiency is improved, and the cooling efficiency is improved; and the communication port is formed in the mounting plate, hot air in the air conditioner hot cavity can enter the smoke suction cavity through the communication port, and the heat dissipation efficiency is further improved.

The present disclosure relates to a module and system for indoor farming. In some embodiments, an indoor farming module includes a container compartment divided into a grow zone and a control zone, wherein a grow zone comprises a chassis with a plurality of horizontal and vertical frame members configured to support a plurality of carts each carrying a tray with a plurality of plants and wherein the control zone includes an air blowing unit integrated so as to direct air between a drop ceiling and a structural ceiling of the indoor farming module and an air conditioning unit configured to condition an atmosphere in the grow zone by producing cool dry air that is blown into a plenum space located between the drop ceiling and a structural ceiling.

The embodiment of the utility model provides a drying device. The drying device comprises a shell, an air inlet and an air outlet, wherein the air inlet and the air outlet are communicated to form a ventilation space; the shell is provided with a discharge port and a guide plate arranged in the ventilation space, and one end of the guide plate is connected with the discharge port; the rotating mechanism comprises a rotatable cage body and a first driving mechanism which is in driving connection with the cage body; the cage body is arranged in the ventilation space, is positioned above the guide plate and is provided with a material inlet / outlet; the first driving mechanism drives the cage body to move in a feeding position, a discharging position and a working path except the feeding position and the discharging position; when the cage body is located at the discharging position, materials in the cage body fall into the guide plate through the material inlet and outlet. Through combination of the ventilation space and the rotating mechanism, the drying speed of the blast beads is high, and surface hardening or internal spice loss caused by direct collision of the blast beads in the ventilation space is avoided.

To provide a ceiling structure capable of preventing the occurrence of condensation in plenum space of a ceiling.SOLUTION: A ceiling structure 1 comprises a membrane ceiling material 2 installed to form plenum space K between the material and a ceiling 101 of a building 100, and a heat insulating material 3 installed within the plenum space K, and moisture permeation resistance of the membrane ceiling material 2 is higher than the moisture permeation resistance of the heat insulating material 3. The moisture permeation resistance of the membrane ceiling material 2 is 0.03-0.1 m2 s Pa / ng, and the moisture permeation resistance of the heat insulating material 3 is 0.01-0.035 m2 s Pa / ng.SELECTED DRAWING: Figure 1

A ceiling system is provided for use in a building space. The ceiling system includes a grid system may extend to a plurality of walls and separates the building space into an occupiable space below the grid system and a plenum space above the grid system; and a plurality of ceiling tiles that are supported by the grid system. The grid system includes main beams connected to cross tees connected to right angle brackets with clips for easy installation.