Air flow rate control device

FIELD: ventilation.

SUBSTANCE: device contains the vertically arranged air duct housing with the end face hole, the valves and the petal punched orifices installed under the end face hole on vertical axes with the resetting mechanism. Under the air duct housing the hollow oval casing in the form of two bent branch pipes with two horizontally located windows facing towards mutually opposite sides and the common face hole is located. The valves are installed in casing windows with a possibility of rotation around axes. On the axes ends the bushings are located. Petal diaphragms are rigidly fixed under its lower face hole, on concentrically installed bushings, located on bushings of vertical axes of valves, oval bent branch pipes of the casing are fastened to the face hole of the housing with a possibility of change of tilt angle with reference to it, and the concentrically installed bushings are fixed to bushings of axes with a possibility of change of position of orifice petals in the horizontal plane.

EFFECT: expansion of scope of application, possibility of use both in exhaust, and in the input ventilation systems.

2 dwg

 

The invention relates to a device for creating a microclimate in industrial premises and can be used for ventilation.

A device for controlling the flow of air, comprising a housing installed inside a valve in the form of a sash attached to the axis (SU # 1260644, 30.09.86. Bul. No. 36).

The disadvantage of this device are significant consumption of materials and dimensions for height, which limits its use in buildings. Furthermore, the device is only acceptable for installation on systems exhaust air, i.e., has a narrow functional purpose.

A device for controlling the flow of air, comprising a housing installed inside a valve in the form of a sash attached to the axis (Patent RU №2277206. Publ. 27.05.2006. Bul. No. 15).

The disadvantage of this device is the low quality of regulation while reducing the size, because they reduce reduced the leaf area, and thus reduces the sensitivity of the regulator. In addition,the regulator can only work under Raseiniai, i.e. in extract ventilation systems, and accordingly has a small scope.

The closest in its technical essence is a device for controlling the flow of air containing vertically placed in the body duct with torawareta, mounted underneath on the vertical axes of the valves and flap perforated diaphragm with a return mechanism in their initial position (Patent RU №2487303 C1, F24F 11/00 Proposal: 2012119114/12, 10.05.12. Publ. 10.07.2013. Bul. No. 19).

The disadvantage of this device is that it can only be used in exhaust ventilation systems.

The technical essence of the present invention is to expand the field of application, i.e. the possibility of applying in supply and ventilation systems.

This technical essence is achieved in that the device for controlling the flow of air containing vertically placed in the body duct with the end hole, mounted underneath on the vertical axes of the valves and flap perforated diaphragm with a return mechanism in their initial position, under the body of the duct is placed a hollow oval casing in the form of two knee-shaped pipe with two horizontal Windows facing in mutually opposite directions and a common end opening, the valves are mounted in the Windows of the casing with the possibility of rotation around the axes at the ends of the axles placed sleeve, and aperture blades are rigidly mounted at its lower end opening, on concentrically installed the bushings located on the vertical axes of the bushings valves, when �the knee-shaped oval casing pipes are attached to the end housing bore with the possibility of changing the angle of inclination with respect to that, a concentrically mounted sleeve fixed to the sleeve axis with the possibility of changing the position of the diaphragm blades in the horizontal plane.

Fig.1 shows a device, adjusted to work in the duct.

Fig.2 shows a diagram of the device, adjusted to work on the exhaust air duct.

A device for controlling the flow of air comprises a vertically placed the duct body 1 with end 2 hole (for example, the bottom base of the supply shaft when the air from mercruser space in a building with an attic), in the lower part of which hinges on the 3 fixed, directed in opposite directions two knee-shaped pipe 4 forming a hollow oval casing with clamps 5 and 6 axes. At the ends of the axles 6 through the bushings 7 and concentric with the axis fixed to the collet 8, in the Windows of the nozzles 4 are provided, respectively, the valve 9 and the diaphragm blades 10, which lies in a horizontal plane and having a perforation 11. The sleeve 8 is provided with latches 12 and is arranged to rotate on the bushings 7, providing the ability to change the position of the petals diaphragm 10 in a horizontal plane. Mechanisms of return valves 9 and 10 petals in the initial position represents a spring 13 having one end attached to the nozzles 4, and the second valve 9.

The device can be used in exhaust and supply air ventilation systems at the appropriate setting on the mode of operation. Setup can be performed in the manufacturing process and after installation.

Example 1. Setting to work to supply the ventilation system shown in Fig.1. The nozzles 4 are mounted to the housing 1 in such a way as to allow the tilt axis 6 inside the housing 1. This is achieved by turning the nozzles on 4 hinges 3 with retention in a predetermined position by the clamps 5. A device for controlling the flow of air in the mode of air flow works as follows.

In the absence of differential pressure valves 9 and 10 petals connected by means of a latch 12 and bushings 7 and 8 are derived from the housing 1 due to the inclination of the axes 6 and springs 13. The living section of the housing of the regulator at the moment is maximum. That is, the opening 2 (for example, the bottom base blowing mine) is completely open. In the presence of a pressure differential between the inlet and outlet of the regulator there is a movement of air in the cavity of the housing 1 of the air duct. The pressure from the inner side of the knob is transmitted to the surface of the valves 9. Valve 9 of the bushing 7, overcoming the opposition of its own weight, given the angle of the axes 6, turn. With further increase of the pressure drop begins the opposition of the springs 13. I�ol of rotation of the valve 9 in the cavities of the pipes 4 and is rigidly connected in pairs by means of clamps 12 (for example, the retaining bolt) and concentrically mounted on the axis 6 of the bushings 7, 8 and 10 identical petals. Petals 10 with perforations 11 mounted on the bushing 8 in a horizontal plane, when rotated to cover the opening 2 at the same angle. At maximum design pressure petals 10 are rotated to the stop (not shown), i.e. at the maximum specified angle. The total area of the perforations 11 diaphragm blades provides a predetermined flow of air when fully closed hole surface 2 10 petals. When reducing the pressure differential between the input and output of the controller, everything works in reverse. The control range is set by the stiffness of the springs 13. Sensitivity is set by the angle of the nozzles 4 hinges 3 locking 5 (for example, screw pair), and respectively 6 axes. Joint combat force overpressure (the power function) forces of the springs 13 (a linear function) and the forces from the weight of the installed angle of the valves 9 and 10 petals (trigonometric function) allow to increase the stability of the controller.

Example 2. Work tuning in the exhaust ventilation system is shown in Fig.2.

To transfer the controller to the reverse mode of operation weaken the latches 12, turn the petals 10 together with the bushings on 8 concentrically mounted in the bushings 7, to full input �of antkow 10 in the sleeve 4. In this position of the sleeve 8 fasteners 12 are rigidly connected with a sleeve 7. Retainers 5 (for example, vvorachivaya bolt) tip nozzles 4 on the hinges 3 so as to have a tilting axis 6 outwards from the housing 1.

A device for controlling the flow of air in the mode of the air-extraction works as follows.

In the absence of a pressure differential between the inlet and outlet of the regulator valve 9 by the springs 13 are withdrawn from the housing 1 of the regulator and a cross-section of the controller enclosure maximum, i.e. the opening 2 (for example, the lower base of the exhaust shaft) fully open. In the presence of a pressure differential between the inlet and outlet of the regulator there is a movement of air in the cavity of the housing 1 of the air duct. Pressure from the outside of the knob is transmitted to the surface of the valve 9, the latter on the bushings 7, overcoming the opposition of its own weight, given the angle of the axes 6, turn. With further increase of the pressure drop begins the opposition of the springs 13. The angle of rotation of the petals 10 in the cavity of the casing 4 and is rigidly connected in pairs by means of clamps 12 (e.g., a lock bolt) and concentrically mounted on the axis 6 of the bushings 7, 8 and valves 9 are the same. Petals 10 with perforations 11 mounted in a horizontal plane on the bushings 8, when rotated to cover the opening 2 on the same Hugo�. At maximum design pressure drop petals 10 are rotated to the stop (not shown) at the maximum specified angle. The total area of the perforations 11 provides a predetermined flow of air when fully closed hole surface 2 10 petals. When reducing the pressure differential between the input and output of the controller, everything works in reverse order.

A device for controlling the flow of air containing vertically placed in the body duct with the end hole, mounted underneath on the vertical axes of the valves and flap perforated diaphragm with a return mechanism in their initial position, characterized in that a housing of the air duct is placed a hollow oval casing in the form of two knee-shaped pipe with two horizontal Windows facing in mutually opposite directions and a common end opening, the valves are mounted in the Windows of the casing with the possibility of rotation around the axes at the ends of the axles placed sleeve, and aperture blades are rigidly mounted at its lower end a hole, concentrically mounted sleeves, posted on sleeves vertical axes of the valves, with a knee-shaped oval casing pipes are attached to the end housing bore with the possibility of changing the angle of inclination relative to him, and con�hexadecimal installed sleeve fixed to the sleeve axis with the possibility of changing the position of the diaphragm blades in a horizontal plane.



 

Same patents:

Block for system // 2530839

FIELD: heating.

SUBSTANCE: invention relates to the control unit for the system which impacts on the environmental conditions, such as ventilation systems, humidification systems, darkening systems to protect from sunlight, and other similar systems. The block used for mounting in a wall of the control means, comprising a slot forming a first section, a second section made with the ability of mounting into the socket, and a frame located between the socket and the second section and having an opening for mounting the connecting element, connecting the said two sections, and the dimensions of the said opening are greater than the dimensions of the said connecting element, and the said second section has a sleeve which dimensions exceed the dimensions of the said opening, and between the said sleeve and the said frame the compressible material is located, pressed against the frame by the said sleeve, and the said first section and the said second section are connected by the fixing means, and the said fixing means has at least two locking positions, and the distance between two adjacent locking positions is less than the thickness of the compressible material in the uncompressed state.

EFFECT: ability to mount the claimed block with different frames is provided, maintaining the integrity of the entire structure.

5 cl, 3 dwg

FIELD: ventilation.

SUBSTANCE: climatic chamber includes a chamber with controlled temperature, in which there is such a product as hatchable eggs or chickens, and in particular, small chickens. The climatic chamber includes a fan that emits the heat during operation; a supply channel passing from the fan to the chamber; and a temperature sensor installed in the supply channel. Temperature of the air passing via the supply channel is measured by means of the temperature sensor. Fan rotation speed is controlled depending on the temperature measured with the temperature sensor, for action on temperature of the air moved with the fan.

EFFECT: maintenance of temperature due to the fan rotation speed control for action on the temperature of the air moved with the fan due to the heat emitted with the fan as a result of friction.

21 cl, 2 dwg

FIELD: ventilation.

SUBSTANCE: device for adjusting airflow rate comprises a vertically disposed housing of the air duct with an end opening at the lower part and the valve mounted in it, the valve is made in the form of a leaf diaphragm, which leaves are mounted with its one end to the housing of the air duct with the ability to rotate about an axis of fastening, have two surfaces intersecting at angle to one another, the upper of which lies in a horizontal plane and is perforated. The valve comprises a mechanism of its return to the initial position, made in the form of a spring of temperature-sensitive material which changes its rigidity, which one end is fixed to the housing of the air duct and the second is fixed to the leaf of the diaphragm.

EFFECT: simplification of the device design, improvement of quality of adjusting airflow rate and extension of its field of application on existing exhaust shafts without changes in their design.

FIELD: ventilation.

SUBSTANCE: ventilation system of production plant contains contaminated air exhaust duct that includes fan with electric motor, sensor of contaminants concentration in the air of the working zone; at that, system is also provided with automatic air flow control unit consisting of the sensor signal converter, microcontroller, voltage control and air movement booster connected to sensor of contaminants.

EFFECT: reducing the time of the system response to the change of parameters of air medium, reducing the working hours of serviceability, and providing high accuracy of measurements of contaminants contained in the air of the working zone.

1 dwg

FIELD: engines and pumps.

SUBSTANCE: air supply device (10) includes heat exchanger (11) by means of which circulation air flow (L2) supplied from the room can be cooled or heated. Air supply device (10) also includes mixing chamber (12) into which nozzles (16a1, 16a2…16an) are opened or gap (16) for flow for supply of primary (L1) air flow to mixing chamber (12) by means of which primary (L1) air flow leaving nozzles (16a1, 16a2…16an) or passing via gap (16) for flow in the form of flow (Qs) induces circulation (L2) air flow from the room (H), passing through heat exchanger (11) to mixing chamber (12). Combined (L1 + L2) air flow is supplied to the room (H). Air supply device (10) also includes control (100) bypassing on bypass way nozzles (16a1, 16a2… 16an) or gap (16) for flow for control of air flow (Q3) passing through control (100), by means of which, depending on use of the room, total (ΣQ) air flow of fresh primary air (Q3 + Qs) supplied from outside of air supply device can be controlled.

EFFECT: enlarging the range of air flow velocities.

11 cl, 13 dwg

FIELD: heating.

SUBSTANCE: energy is supplied to ambient environment for example from radiators, floor heating devices, electric fans, etc. According to the proposed method, there determined is comfort criterion in the form of a figure and weight of magnitude of compliance with comfort criterion, which is in the form of a figure. Then there accepted is the quantity of energy, which is equal to certain value and on the basis of that value there determined is numerical expression of the degree of compliance with comfort criterion and numerical expression of costs for provision of such quantity of energy.

EFFECT: reducing energy consumption.

15 cl, 1 dwg

FIELD: heating.

SUBSTANCE: air is supplied from the outside through supply filter by means of supply fan to heat-insulated supply air duct routed along the corridor and the end of which is connected to heat-insulated exhaust air duct through which the air is removed from rooms by means of exhaust fan; at connection point of these supply and exhaust air ducts there is check valve; in order to avoid pressure differential in those air ducts, air is supplied from supply air duct through supply air duct of the room to each room passing at that the supply flow-controlled valve and channel heater, which are controlled with microprocessor unit; then as per values of sensors installed in rooms the air is removed from each room through the room exhaust air duct passing at that the exhaust flow-controlled valve also controlled with microprocessor unit to the exhaust air duct and then from the building.

EFFECT: power consumption economy, optimal microclimate in all rooms separately.

1 dwg

FIELD: heating systems.

SUBSTANCE: invention refers to dynamic climate control plant in the corresponding air flow control system. Climate control plant includes air-conditioning unit, logic control unit having the first group of sensors, and medium parametre control device receiving the data on medium by means of the second group of sensors. In addition, plant includes indoor climate control device receiving data from rooms by means of the third group of sensors recording opening/closing of doors, presence of people, pressure differential and dust available in air. In addition, climate control device processes gathered data and brings parametres of air supplied to rooms to the required values by means of a number of appropriate devices. Climate control device has electronic connection to all elements of the plant.

EFFECT: invention is aimed at providing necessary comfort and safety in serviced rooms.

8 cl, 3 dwg

FIELD: heating systems.

SUBSTANCE: device is intended for controlling the heating of mixture valve. Device includes electric heater, controllable switching device, ambient air temperature sensor and electric power source. Due to introduction of additional temperature and recirculation air relative humidity sensors, unit for determining recirculation air dew point temperature, logic unit, unit of comparison and connections between units, there determined are conditions in which it is not necessary to switch on the heating at negative ambient temperatures.

EFFECT: device allows reducing energy consumed for heating of mixture valve when being operated during winter period.

1 dwg

FIELD: heating.

SUBSTANCE: aeration device is designed for natural ventilation systems of architectural monuments. The aeration device comprises releasably connected louvre module casing with a louvre grid and valve module casing with at least one damper with the damper suspension unit and the damper deflection angle limiter with a return spring. The damper deflection angle limiter is made as at least one arrester rigidly connected to the rod and controlled by a rope; the rod is set in the guide bushes welded to the valve module casing and the damper suspension unit is fitted by a stopper interacting with the arrester.

EFFECT: increased reliability of temperature-humidity conditions normalisation, elimination of stagnation zones, removal of excessive air from the building inner volume.

4 dwg

FIELD: air-conditioning and ventilation systems for living and public buildings.

SUBSTANCE: proposed system includes plenum-exhaust unit with air valves, filter, plate-type recuperative heat exchanger, air cooler, supply fan connected with supply pipe line; mounted in way of exhaust air flow are filter, plate-type heat utilizer, exhaust fan and pipe line of evacuation of exhaust air into atmosphere. Mounted in way of exhaust air before plate-type recuperative heat utilizer is electric air heater which is switched on by pulse of sensors monitoring forming of ice crusts on surfaces of plate-type passages in zone where moisture is condensed at cooling and dehumidifying of exhaust air. Mounted in way of flow of supply air after plate-type recuperative heat utilizer is supply air temperature control sensor which is connected by pulse communication with multi-flap air valve of air bypass passages; supply air ducts are connected to ejection-type terminals mounted under windows of building being serviced; their heat exchangers are connected with centralized and/or local heat and cold sources; connecting pipe lines are provided with automatic valves connected with room temperature sensors. Proposed system ensures control of ice crusts on plate-type heat exchanger with no reduction in recuperation factor; this system also provides for use of natural cold of outside air for removal for excessive heat in spaces served.

EFFECT: enhanced efficiency.

1 dwg

FIELD: ventilation and air conditioning; improving comfort in rooms by maintaining constant pressure therein.

SUBSTANCE: proposed method includes air forcing into and its discharge from rooms. When air pressure within room rises above 1.1 x 105 Pa, air blower is turned on to discharge air from room and when air within room is below 0.9 x 105 Pa, air blower forcing air into room is turned on. This method for maintenance of air pressure indoors includes air forcing into and its discharge from rooms, at the same time bringing indoor air pressure to outdoor atmospheric value. Device for maintaining air pressure within rooms has air blower and is provided with outdoor atmospheric pressure sensor, indoor pressure sensor, as well as with control unit coupled with air blower drive.

EFFECT: improved comfort in rooms due to keeping air pressure indoors within desired range in compliance with atmospheric pressure fluctuations.

3 cl, 3 dwg

FIELD: ventilation.

SUBSTANCE: ventilation system comprises exhaust air duct for contaminated air that has fan provided with the electric motor. The ventilation system is provided with the controller of air flow rate connected with the pickup of concentration of harmful agents and converter of the speed of rotation of the electric motor of the fan.

EFFECT: enhanced efficiency and improved quality of air.

1 dwg

Room venting method // 2284436

FIELD: roof ventilation with forced air circulation, particularly to vent rooms characterized by high moisture generation.

SUBSTANCE: system comprises exhaust fan connected with air suction means installed inside room and linked to it by air duct. The system is provided with microprocessor-based air moisture regulator, which is connected with executive tool of fan guide apparatus.

EFFECT: increased reliability, quality and economical efficiency.

1 dwg

FIELD: ventilation.

SUBSTANCE: method comprises pumping humid air from the room to air duct of exhaust ventilation, discharging air to the atmosphere by means of a fan, control of removed air by the value of the air humidity in the room by means of air humidity controller connected with the actuator of the fan blades and pickup of humidity in the room.

EFFECT: enhanced reliability.

1 dwg

FIELD: air conditioning.

SUBSTANCE: method comprises collecting the contaminated air to the air duct of exhaust ventilation, and withdrawing air to the atmosphere by means of fan. The flow rate of air pumped out from the exhaust air duct is controlled by the concentration of harmful agents in the working zone of the industrial room.

EFFECT: enhanced efficiency.

1 dwg

FIELD: air conditioning or ventilation.

SUBSTANCE: air conditioning system comprises special controller connected with the data channel and provided with the temperature gage. The controller is provided with the device for emulating operation of the control panel of the conditioner remote control. The controller emulates the operation of the control panel of the conditioner remote control on the basis of data offered from the comparison of the readings of the temperature gage and required value of temperature and controls the conditioner.

EFFECT: enhanced reliability.

10 cl, 2 dwg

FIELD: mechanical engineering; air heater plants.

SUBSTANCE: proposed method of delivering heat carrier into air heater plant consisting of two or more air heaters installed in tandem in two or more rows in direction of air flow comes to connection of air heaters to supply and return heat carrier pipelines. At temperatures of ambient air ta.a>0°C counterflow-cross connection of air heaters according to heat carrier is done, and at ambient air temperature of ta,a,≤0°C, straight-cross connection of air heaters according to heat carrier is provided.

EFFECT: provision of reliable protection against freezing of air heater plants, reduced consumption of heat supply water.

1 dwg

FIELD: air conditioning equipment, particularly heating and/or venting devices for chemical, metallurgical, welding, foundry and galvanic plants characterized by significant air pollution and demanding large venting air rate, as for residential building ventilation and/or heating.

SUBSTANCE: device comprises heating chamber to heat air exiting from room, regenerative vessels, pressure air duct having pressure blower and exhaust air duct having exhaust fan. The heating chamber comprises heater. Regenerative vessels have gates for alternate communication of each regenerative vessel with ambient space and pressure air duct, as well as with heating chamber and ambient space. Exhaust air duct us communicated with heating chamber. Method for device operation involves alternately shifting gates for each regenerative vessel communication with ambient space and pressure air channel, as well as with heating chamber and ambient space.

EFFECT: decreased power inputs due to low-potential heat utilization.

9 cl, 1 dwg

FIELD: mechanical engineering; ventilation and heating and heating systems.

SUBSTANCE: plenum fresh air gets into room through intake air duct according to set rates. Waste air is drawn out along air ducts by means of exhaust fan through exhaust air duct. Intake and air ducts are furnished with recirculating valves to regulate flow of air taken from outside or from room. Plenum microprocessor control unit controls operation of recirculating valves basing on concentration of carbon dioxide in air by means of carbon dioxide sensor and depending on quality of air in room, said microprocessor control unit changes over recirculating valves from plenum to recirculation, i.e. to pass air through recirculation air duct. Further on air passing through filter and delivery fan gets into heating and intake chamber where it is heated to +20°C. Efficiency of heating is attained by increasing time of air passing in heating zone. Plenum microprocessor control unit switches on heating at the moment when air is taken from outside at below zero temperature. At recirculation conditions, heating and intake chamber is kept switched off, without affecting concentration of carbon dioxide in air, which is economically effective. Ventilating air ducts are not heated as they pass to required place of air getting into room, as air in room is +20°C and in ventilating duct is also +20°C. air before getting out in required place of room is heated by channel heater which heats coming out air to +43°C which is heating system. Said channel heater is controlled by temperature microprocessor control unit by means of temperature transmitter which switches ON and OFF channel heater depending on preset temperature in room.

EFFECT: provision of required microclimate in room at minimum energy consumption.

1 dwg

Up!