RU14644U1 - ELECTRODE WATER HEATER - Google Patents

Abstract

1. An electrode water heater containing a sealed enclosure inside which a phase electrode is installed, coolant inlet and outlet pipes, an insulator and a current lead terminal block, characterized in that it is equipped with additional phase electrodes coaxially mounted in stand-alone perforated tube electrodes hydraulically connected to a common supply collector coolant, and electrically - with the terminal strip of the current input. 2. A water heater according to claim 1, characterized in that the tubular electrodes are flow-through, mounted coaxially with the vertical axis of the housing and offset from each other by 120 relative to the axis of the housing. 3. The water heater according to claim 1, characterized in that the perforations in the walls of the pipe electrodes are arranged in an ascending spiral. A water heater according to claim 3, characterized in that the total area of the passage sections of the perforation holes of the pipe electrodes is chosen equal to the area of the "live section" of the hole between the electrodes.

Description

The utility model relates to a power system, namely, to means for heating feed water using electric heaters and can find application in heating systems.

Known electrode heater | I | containing repveticheskim housing, a phase electrode, placed in the medium of the coolant, the pipes of its inlet and outlet.

The disadvantage of this solution is the rapid wear of the phase electrode, associated with intense corrosion of the electrode material in the heat transfer pipes. This is explained by local overheating of the electrode in this zone, which reduces the reliability and efficiency of the water heater.

A better device is known | 2 | , in which the bypass channel of the coolant is additionally used, and the body is equipped with heat-exchange ribs.

This solution is not effective enough, and besides, it is difficult to manufacture and prepare.

The disadvantages of the known solutions are eliminated by the proposed utility model. -Ets is achieved by the fact that in the electrode water heater, which contains a sealed housing, inside of which there is a phase electrode, heat carrier supply and exhaust nozzles, an insulator and a flange / nickname of the thermocouple, additional different electrodes are installed, coaxially placed in stand-alone peofoo-connected tube electrodes hydraulically connected to the common collector for supplying coolant, and electrically from terminal block

The preheater is characterized in that the tube electrodes are made PEOTOCHNY, installed coaxially with the vertical axis of the casing and are shifted to themselves 120 ° relative to the axis of the body.

The water heater is characterized in that the total area of the passage sections of the perforation holes of the pipe electrodes is selected equal to the living area of the hole between the electrodes.

The essence of the utility model lies in the fact that the use of additional phase electrodes in the electrode water heater, coaxially mixed in stand-alone perforated tube electrodes, hydraulically connected to a common

a heat carrier supply collector, and electrically with a current lead terminal, provides the opportunity to increase the heat output of the heater without overheating of its working elements.

Placing the perforation holes in the walls of the tube electrodes in an ascending spiral, as well as selecting the total area of the perforation holes of the tube electrodes equal to the living area of the hole between the phase and tube electrodes, will create an additional charge of the heat carrier from the secondary circuit of the heater that is uniform in height along the phase electrode with a coolant temperature equal to its temperature at the input of the main feed channel, i.e. inlet pipe. Additional make-up equalizes the temperature of the coolant in the heater body, and make-up through openings open in the walls of the pipe ectrodes in an ascending spiral increases the circulation of the tag around the phase electrode and intensifies heat transfer processes.

The design and operation of the electrode water heater (EEC) is illustrated in Fig. 1-3, which shows: Fig. 1-general view of 8VP; Fig. 2 - embodiment of the tube and different electrodes; Fig. 3 shows a scan of the wall of the tube electrode, explaining the placement of holes.

The designations are accepted: 1-ksrpus; 2-pipe electrode; 3-phase elektode; 4 and 5-pipe trunk and supply coolant; 6.7 - terminals of the tube and phase electrodes; 8-perforation

hole; 2-insulator; IC O-ring.

The proposed EVP works as follows. For his

network connections use the control panel, including the starter, starting protection and the thermostat. The remote control is not shown in the figures, as implemented according to standard schemes on known elements.

Before switching on the VIZ, it ground and nullify. The heating system is grounded with a separate wire.

After connecting the VIZ, the supplied voltage is supplied to the current lead terminal block.

When an electric current passes through an electrically conductive coolant in the gaps between the coaxially arranged phase to tube electrodes (separated by an insulator 9) along their entire length, the coolant is intensively heated, which is determined by the electrical conductivity, coolant circulation speed, and also the current strength in the electrode circuit.

The coolant circulation is ensured by the fact that the coolant heated in the VIZ (lighter) is displaced from it by the coolant (heavier) cooled in the heating devices, which allows the first to rise along the riser and enter the heating devices through the distribution line.

The circulation pressure of the water in the heating system depends on the height difference between the centers of the heating devices and the VIZ.

With a different EEC below the heating devices, the circulating water pressure in the heating devices increases, the maximum allowable height difference is 15 m.

For effective and safe operation of the VIZ, the typical scheme of the used Valley control panel contains an electromagnetic starter rated for current up to 25 A (with thermal protection), an automatic circuit breaker (fuse) with a maximum cut-off current of 25 A and an automatic temperature controller with manual setting of the coolant temperature , excluding the possibility of boiling it.

All pipelines and connections are made of metal and ensure the continuity of the grounding circuit along the heating system.

For even load distribution and current reduction, low-pass. it in one wire, it is recommended to connect the EEC to a three-phase network (3x220 V) by a star with mandatory zluzhenie midpoint.

Experimental verification - EEP has been established in the heating systems of objects ’facilities (individual don and cottage) in the Altai Territory. The check was performed under the following conditions:

- consumed current - no more than 75 A;

- rated power - 13.5 kW;

-heat carrier - liquid with specific resistance

2 kOhm / cm;

- input of 3 $ aznny 3x220 V; Test Results:

- consumed electricity with a specific resistance of the coolant of 2-4 kOhm / cm - 4.5-G5 kW / h;

maximum temperature tvtt-n normal. not in uopv

EVP - up to 96 ° C; -KPD EVP - up to 96%;

- volume of the heated room up to 600 m3; - volume of the heat carrier in the heating system - up to 400 l;

The test results confirmed that the EEC of the proposed model can be successfully used to heat rooms up to 600 m3, with a water volume in the heating system up to 400 l. VIZ provides the necessary water circulation in the system without requiring an additional circulation pump.

The industrial applicability of the proposed model ЈЗП is determined by the relevance of their application in heating systems of residential premises, including:

--individual houses to cottages;

high-rise houses;

-homes for administrative purposes;

-garages, gas stations, washing cars, railway cars.

ALSUD1 Limited Liability Company (Barnaul) plans serial production of the computer models of the proposed model in 2000.

General Shrektgsz / PKЈ A.

And ./. Bergienko

Claims (4)

1. An electrode water heater containing a sealed enclosure inside which a phase electrode is installed, coolant inlet and outlet pipes, an insulator and a current lead terminal block, characterized in that it is equipped with additional phase electrodes coaxially mounted in stand-alone perforated tube electrodes hydraulically connected to a common supply collector coolant, and electrically - with the terminal block of the current lead. 2. The water heater according to claim 1, characterized in that the tubular electrodes are flow-through, mounted coaxially with the vertical axis of the housing and offset from each other by 120 ^° relative to the axis of the housing.  3. The water heater according to claim 1, characterized in that the perforations in the walls of the pipe electrodes are arranged in an upward spiral. 4. The water heater according to claim 3, characterized in that the total area of the flow sections of the perforation holes of the pipe electrodes is chosen equal to the area of the "live section" of the hole between the electrodes.