CN102439358A

CN102439358A - An electrode boiler

Info

Publication number: CN102439358A
Application number: CN2010800175311A
Authority: CN
Inventors: M.洛夫兰
Original assignee: PARAT HALVORSEN AS
Current assignee: Palat Electric Heating Co.,Ltd.
Priority date: 2009-02-20
Filing date: 2010-02-22
Publication date: 2012-05-02
Anticipated expiration: 2030-02-22
Also published as: EP2401549B1; BRPI1007846A2; WO2010095954A2; NO331435B1; BRPI1007846B8; BRPI1007846B1; WO2010095954A3; NO20090808L; EP2401549A2; CN102439358B; DK2401549T3

Abstract

The invention relates to an electrode boiler that is adapted for use in a marine environment. The boiler includes a container (5) holding water, a number of electrodes (7a - f) submerged in said water, a source of AC electric power connected with said electrodes, means for supplying water to said container, means for removing hot water or steam from said container and means for holding the water in said container at a pre-defined level. In order to secure an even production from the electrodes even when the boiler is tilted, the electrodes are even in number and are arranged in a circle, wherein electrodes (7a - 7d; 7b - 7e; 7c - 7f) that are located at 180 DEG distance along said circle are connected to each other and to one phase of electric power from said source.

Description

The electric pole type boiler

Technical field

The present invention relates to a kind of electric pole type boiler that hot water is provided or generates steam.

Background technology

The electric pole type boiler comprises several electrodes of submergence tank, and each electrode pair answers one mutually.This boiler generates heat from electrode stream to the mode of counterelectrode as conductor with water through alternating current.Boiler is applicable to low pressure (230-400V) and high pressure (5-20KV) power supply, and the about 2-100MW of thermal power does not wait.The electric pole type boiler has many good qualities, as efficient up to 100%, be convenient to control output area, start rapid etc.In addition, also very environmental protection of electric pole type boiler.Water level has the self-protection function when low, this is that boiler can prevent that electric current from passing through, and does not therefore have bust because water level is when low.Yet the electric pole type boiler only limits to be installed in the static environment so far, promptly is installed in the building.Existing electric pole type boiler is not suitable in marine environment, and this is because ship influence water level in choppy marine meeting, so can influence the path between the electrode.

Once narrated a kind of ac electrode formula hot water apparatus in the Swiss Patent numbers 1 486 346, the electrode of this device is provided with around circle, and according to the principle of this device, this device only is intended to be used for static environment.Said hot water apparatus adopts the central shaft of mechanical action to regulate output.

Describe a kind of electrode among EP 1 703 225 A2 and connected galvanic hot water apparatus.Because what boiler was connected is direct current, much more simply the problem that tilting furnace causes.

Described a kind of electric pole type boiler that adopts three-phase alternating current among DE 3421807 A1.This principle has adopted a central electrode, is used for classification and regulates output.Said electric pole type boiler is not in the environment that rocks that jolts, to use.

Described a kind of electric pole type boiler that adopts three-phase alternating current among the MD 2366 B1 2004.01.31, this boiler and not being suitable in the environment that rocks that jolts uses.

Summary of the invention

Therefore, the purpose of this invention is to provide a kind of electric pole type boiler of in astatic environment, installing of being suitable for.

The boiler that defines in the appending claims then can be realized above-mentioned purpose.Particularly, the electric pole type boiler of being invented comprises the even number of electrodes that pitch of the laps is provided with, wherein interconnect with the electrode that 180 degree (that is, being located on the straight line with the center of circle) are provided with along said annular, and connect power supply one mutually.

Description of drawings

Read the detailed description of attached drawings, just can be well understood to advantage of the present invention, wherein:

Fig. 1 is the boiler skeleton diagram that has shown the boiler main member;

Fig. 2 is the profile of boiler of the present invention;

Fig. 3 is the profile of D-D line among Fig. 1.

The specific embodiment

The present invention relates to a kind of electric pole type boiler, this inventive embodiments of describing in following each section is used for hot-water supply.As shown in Figure 1, boiler 1 is connected to a circulating pump 2 and heat exchanger 3 with the water loop of closure.This circulating pump continues recirculated water in boiler, and water heats in boiler, and the heat of generation is removed at heat exchanger 3, and in the heat exchanger, chilled water is back to boiler and reheats by defeated.In the similar embodiment that generates steam, will save heat exchanger, steam directly transfers to pipeline network system.

Fig. 2 has shown the inner working mechanism in the boiler 1.Boiler comprises a boiler drum 4.In the boiler drum 4, an internal container 5 is installed on the shelf 6 of insulation.Pass in the conducting rod 8 of insulating sleeve 9, drum barrel has hung several electrodes 7 on the top.Conducting rod 8 is connected with AC power through conductor 10.

Water in the internal container 5 remains on predetermined water level.Water level adopts valve 11 controls according to the reading of water level meter (not shown).Water level can also be through the control of spilling water canal.The output of boiler can be through changing the conductibility control of water level or water.

Fig. 3 has shown the deployment scenarios of electrode 7a-f.Electrode connects into a star, and electrode of opposite connects in pairs, and by the power supply of same electricity mutually, for example, electrode 7a is connected with electrode of opposite 7d, and electrode 7b is connected with electrode 7e, and electrode 7c is connected with electrode 7f.In other words, every electricity is mutually shunted, to two symmetrically arranged electrode power supplies.Water/container has formed the insulation neutral point between the Y-connection electrode.Electric current will be conductor with water from crossing neutral point with two electrode stream being electrically connected, flow to the pair of electrodes that is electrically connected with another.The electric conductivity of water depends on water mineral content and temperature.

In marine environment, on steamer, ship can cause boiler to tilt when jolting, thereby causes horizontal plane to tilt like boiler erection.Yet,,, when the water level of an electrode is low, can remedy by the high water level of its another corresponding electrode like Fig. 3 because electrode is and is symmetrical set.So, boiler tilts also can not cause the irregular of three phase electric power.

Put it briefly, even electrode surrounds an annular, and electrode of opposite connects in pairs, and when every pair of electrode was electrically connected with one of AC power again, special function of the present invention just can have been given play to.Electrode means that relatively then two electrodes are 180 degree angles (that is, surrounding the round center of circle point-blank with electrode) along circle.In the embodiment of foregoing invention, be provided with six electrodes altogether, electrode connects in twos, and interconnective electrode and is electrically connected.The number of electrode can increase, as 12 electrodes are surrounded a circle.Then, again electrode of opposite is interconnected in pairs, again two pairs of electrodes are interconnected, be connected to one more jointly mutually.As long as all electrode groups have identical layout in circle, then can any electrode pair be connected.

Claims

1. electric pole type boiler with following parts: several electrodes (7a-f) in a container filled with water (5), the said water of submergence, an AC power that is connected with said electrode, the equipment that supplies water to said vesse, the equipment of venting hot water or steam and the equipment that the water in the said vesse is maintained predetermined water level from said vesse; It is characterized in that; Electrode number is an even number; Surrounding an annular equably is provided with; Electrode (the 7a-7d that wherein is provided with 180 degree (that is, being located on the straight line) with the center of circle along circle; 7b-7e; 7c-7f) interconnect, and connect a phase of said power supply.

2. electric pole type boiler according to claim 1, this boiler comprise six electrodes, form three pairs of electrode of opposite.