UA15382U - Hydro-unit of siphon type - Google Patents

Abstract

A hydro-unit of siphon type has a turbine, a generator, a suction pipe. Water from water reservoir is supplied to suction pipe by means of asynchronous motor, this afterwards is used as generator.

Description

Description of the invention

The useful model belongs to the field of energy, namely hydropower and can be used at hydroelectric power stations and other hydroelectric structures as energy sources for factories, children's camps, recreation centers, agricultural farms, sports facilities and others without significant construction modifications.

Due to its simplicity and low cost, it is also suitable for private customers.

Also, the hydraulic unit allows solving issues of environmental protection, namely: - rational use of water resources to ensure sanitary discharges at all reservoirs, 70 according to the "Rules for Reservoir Use"; - enrichment of water with oxygen, especially in winter.

The siphon-type hydraulic unit can be installed on various hydrotechnical structures as an attached equipment without any construction modifications.

The well-known siphon-type hydraulic unit includes in its design a vacuum device for filling the 19 flowing part of the unit with water, which consumes a lot of time and electricity, so the known design cannot be mobile and quickly put into operation. Another disadvantage of the known design is the presence of latches for stopping and starting units in operation, which cannot ensure an instant stop of the hydraulic unit in emergency situations. (P. 71201, (USA), Bul. Mo11, 2004.1

The basis of a useful model is the task of creating a siphon-type hydraulic unit, in which, due to the introduction of an asynchronous motor and a propeller turbine, as well as an electromagnetic air valve, the ability to instantly start and stop the unit is achieved, and the cost of the entire installation is also significantly reduced.

The task is solved by the fact that the siphon-type hydraulic unit contains a propeller turbine that is connected to an asynchronous motor, which is distinguished by the fact that at the time of startup, the hydraulic unit works like a pump until the flow part is filled with water, and then automatically switches to generator mode. -at

The hydraulic unit is used on the water gradients from them to the bm with a flow rate of 0.4 to 2.5 m/s with a power output of 5 to 100 kW. As a generator, an asynchronous motor is used, which at the moment of switching on works in pump mode, and after filling the flow part (or water path) with water, the operation of the unit automatically switches to turbine mode, in which the asynchronous motor works like a generator. To stop the unit, an electromagnetic air valve is used, which supplies air to the siphon and interrupts the flow of water. The main parts (guide device and elbow) are made from both cast iron and sheet steel, according to the developed drawings. She

In fig. the diagram of the siphon-type hydraulic unit is shown. oh

The siphon-type hydraulic unit (see fig.) consists of a propeller turbine (1), which rotates in a 3-way guide apparatus (2). The turbine shaft is connected to the hydraulic unit (3), which produces electrical energy O-Z808; --

T-50 Hz. The suction pipe (5) is connected to the guide apparatus (2) through the elbow, in which the electromagnetic air valve (4) is mounted.

The impeller with four blades is made of stainless steel. The blades are designed in such a way that "with a change in pressure and flow on the turbine, it is possible to change the angle of their installation. Z 70 The hydraulic unit is universal for various conditions and can be used with water drops from one meter to six meters and with water flow rates from 0.4 to 2.5 m/s with power output from 5 to 100 kW. z» The hydraulic unit of the siphon type offered as a useful model works as follows: an asynchronous motor with a short-circuited rotor (3) is used as an electric energy generator, which is connected to the 3380/2208 network through the control cabinet. The asynchronous motor (3) is switched on and the hydraulic unit starts working in pump mode until the siphon (5) is filled with water. This mode lasts for 2-Sec. After that, the operation of the hydraulic unit automatically switches to the turbine mode, and having reached the nominal frequency of 4! rotation of the motor (3), it synchronizes with the network and starts working as a generator. For an emergency stop, after tripping of protections, as well as for scheduled stops of the hydraulic unit, a signal is sent from the control cabinet to the electromagnetic air valve (4). When it is opened, air is sucked into the water path, at 20 o'clock the water flow is interrupted and the unit stops.

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Claims (4)

Formula of the invention 59 1. A siphon-type hydraulic unit containing a turbine, a generator, a suction pipe, which differs in that water from the reservoir is fed into the suction pipe with the help of an asynchronous motor, which is later used as a generator. 2. Hydraulic unit according to claim 1, which differs in that an asynchronous motor is used as a generator, which at the time of switching on works in pump mode, and after filling the water path with water, the operation of the unit 60 is automatically switched to turbine mode, in which the asynchronous motor works as a generator. 3. The hydraulic unit according to claim 1, which differs in that an electromagnetic air valve is used to stop the unit, which supplies air to the siphon and interrupts the flow of water. 4. Hydraulic unit according to claim 1, which differs in that the turbine uses a working wheel with four blades made of stainless steel, with the possibility of changing the angle of their installation depending on the pressure and flow of water.