PL64879Y1 - Chimney draught regulator with flow intensity meter - Google Patents

Description

2 PL 64 879 Υ1

Pattern description

The subject of the utility model is a chimney draft regulator with a flow rate meter, which is used to regulate the negative pressure in the flue gas, smoke or ventilation chimney channels and produces the output signal needed to regulate the operation of the mechanical device generating the draft in the same channel.

A construction of the thrust regulator is known, consisting of a throttle equipped with a weight. The damper is mounted on an axis fixed in the regulator housing. The amount of negative pressure at which the throttle begins to open is regulated by a weight - usually by displacing the weight along an axis perpendicular to the plane of the throttle. The device is mounted near the chimney flue. Increasing negative pressure in the chimney causes the throttle to open and additional air is sucked into the chimney channel. Sucking in additional air reduces the negative pressure in the chimney duct. If the vacuum is reduced too much, the damper will close.

A mechanical draft regulator is known. Its design is an extension of the above-described known thrust regulator - the mechanical thrust regulator is additionally equipped with a regulator throttle drive. The mechanical system, as an actuator, opens the throttle under certain conditions, e.g. when the heating device is not working, the mechanical system opens the throttle of the draft regulator in order to ventilate and dry the chimney. Another task of the draft regulator is to work as an executive device cooperating with the furnace - too high temperature of the medium heated in the furnace causes the furnace controller to command a partial opening of the regulator's throttle in order to limit the draft, which in turn will reduce the intensity of the combustion process in the furnace and lower the temperature of the medium. heated, e.g. water in the furnace's water jacket, to the value set on the controller.

The above-mentioned known draft regulators are usually built on the basis of DIN 4795.

The item according to the utility model consists of a chimney draft regulator equipped with an electronic throttle opening angle meter. By means of a sinker, the negative pressure of the throttle opening is set, and the air flow rate through the chimney draft regulator is determined based on the throttle opening angle. The electronic meter of the throttle opening angle generates information for the controller that controls the mechanical chimney cap in order for both devices to cooperate while maintaining the preset negative pressure in the chimney channel.

The item according to the utility model is shown in the drawings:

Fig. 1 is a front view of the device

Fig. 2 is a view from the rear side

The object according to the utility model consists of a casing 5 to which an electronic throttle position angle meter 3 is attached. On the axis 2, rotatably mounted in the casing 5, a throttle 1 is detachably attached. The other end of the axle 2 is coupled to an electronic gauge of the angle of the position of the throttle 3. In the throttle 1 is mounted a vacuum adjustment unit 4 containing a weight, connected to the knob 6 by a screw mechanism. In the utility model, the throttle 1 is coupled to an electronic throttle 3 position angle meter via an axis 2 - this connection allows the electronic throttle 3 position angle gauge to determine in an absolute manner the current position of the throttle 1. The signal in the form of electrical information is transmitted from the electronic throttle position angle meter 3 to the controller, which preferably controls the operation of a mechanical chimney pot, e.g. a chimney draft generator. Too little opening of the throttle 1 will then increase the thrust of the mechanical chimney cap. Too large opening of the throttle 1 will reduce the draft of the mechanical chimney cap. The axle 2 is mounted in the housing 5, allowing the rotation of the throttle 1. The vacuum regulation unit 6, mounted in the throttle 1, serves to set the vacuum at which the throttle 1 starts to open. Adjustment of the opening vacuum of the throttle 1 takes place by displacing the weight in the direction perpendicular to the plane of the throttle 1 by means of a knob 6 coupled with the weight by means of a screw mechanism.

The object according to the utility model regulates the negative pressure in the chimney channel by appropriate opening of the throttle 1, allowing additional air to be drawn into the chimney channel. Moreover, it sends information to the controller of the mechanical chimney cap about the flow rate of air flowing into the chimney. The flow rate is measured by

Claims (1)

3 PL 64 879 Υ1 by measuring the throttle opening angle 1. Based on the information from the chimney draft regulator with a flow rate meter, the mechanical chimney cap controller can control the operation of the mechanical chimney cap so that a constant negative pressure is maintained in the chimney channel also by optimal control of the mechanical power of the chimney cap which, in favorable conditions in the chimney channel, will reduce its demand for electricity. Stable negative pressure will have a positive effect on the combustion process in the heating device - both the combustion efficiency and the emission of harmful compounds. When measuring and controlling negative pressure in chimney and ventilation ducts, the utility model object is an alternative to low negative pressure sensors, which are expensive devices. Protective caveat Chimney draft regulator with a flow rate meter, including a throttle opening angle meter and a throttle equipped with a weight, characterized in that the throttle IV is coupled to an electronic throttle position angle meter / 3 / by means of an axis / 2 /.