CN2142533Y

CN2142533Y - Rare-earth permanent magnet dirt-remover

Info

Publication number: CN2142533Y
Application number: CN 92236434
Authority: CN
Inventors: 张宝铭
Original assignee: Harbin Institute of Technology
Current assignee: Harbin Institute of Technology
Priority date: 1992-10-06
Filing date: 1992-10-06
Publication date: 1993-09-22
Anticipated expiration: 2002-10-06

Abstract

The utility model relates to a boiler descaling device, which comprises a flange, an inner cavity pipe, a casing and a rare earth permanent magnet. The inner cavity pipe is divided into two parts by a partition board and the wall of the pipe has a pathway towards the window. The permanent magnet is arranged in the space by the inner cavity pipe and the housing and forms a radial magnetic field. Water supplied to the boiler first flows through the dirt-remover and the water magnetized by the magnetic field can not form boiler scale. The scale formed in the boiler can be also loosened in texture by long diluting of magnetized water and can be cleaned out when cleaning the boiler.

Description

Rare-earth permanent magnet dirt-remover

The utility model relates to a kind of water treatment facilities.

Boiler water is handled at present following several technical measures:

A) ion jar is used resin and is removed the ion that forms the stove dirt in the water, this method, should have special resin process tank, bulky, and special water quality test person should be arranged, consume resin and salt when not only elementary investment moves greatly and on ordinary days, running cost is also quite expensive.

B) adopt the hertz oscilltor scale removal in recent years, this product is owing to adopt electronic circuit, and in service the need guarded, and needs repairing.

C) pickling boiler when fouling, remove the stove dirt with special cleaning agent, but this method can not make non-scaling in the boiler operatiopn, makes furnace thermal efficiency low, and every cleaning once expends a lot of expense.

Take a broad view of it, boiler and heat exchanger still do not have good method for treating water in addition to the above methods at present, and existing method not only initial cost is big, operation maintenance inconvenience, and can not protect stove that the very high thermal efficiency is arranged again in safe operation.

The purpose of this utility model is the magnetization device of a kind of water of design, to scheme to replace the processing method and the treatment facility of existing boiler water.

The utility model is one and crosses hydrophone that its theory structure as shown in Figure 1.

This descaler is by flange, lumen tube, housing and rare-earth permanent magnet are formed, wherein the center of lumen tube 4 is established central partition plate 7 lumen tube is divided into two parts, the tube wall of lumen tube 4 is opened radially

window

5 and 6,5 and 6 communicate with space that housing 2 forms, housing 2 is an airtight tank body, fixing yoke annulus 8 on its end wall, the interior outside of garden ring is bonding rare-earth permanent magnet 1 and 9 respectively, its magnetic direction forms radial magnetic field in housing, again through housing form magnetic circuit through air-gap, inner chamber tube wall to the opposite side permanent magnet by permanent magnet, lumen tube 4 two ends mounting flanges 3.

Water enters the descaler inner chamber by pipeline through flange, radially window by lumen tube 4 terminations, in the cavity that inflow is surrounded by housing and lumen tube, and divide two the tunnel, flow vertically, in flow process, successively be subjected to the magnetization of the different directions of permanent magnet 1, window by lumen within the cavity other end warp flows out then, leads to through flange and boiler tubing.

The lumen tube center separates, and makes water must flow through cavity, can enter the other end, and it is by the thick walled steel tube car of magnetic conduction, mills and form.

In the chamber, by the magnetic circuit that permanent magnet constitutes, its magnetic circuit is shown in dotted arrow among the figure, and permanent magnet has four garden rings, is adhesive in the inside and outside both sides of the yoke garden ring that links to each other with housing respectively, and permanent magnet forms radial magnetic field.

Housing is also made (forged steel cast steel or thick walled steel tube all can) by the steel part of magnetic conduction

To the rare earth permanent magnet descaler of different flow, the utility model is slightly different on inner-cavity structure, but common be that the structure that constitutes the chamber internal magnetic circuit is consistent, water also is identical by the form in magnetic field.Shown in arrow among Fig. 1.

When current during through the descaler inner chamber, be subjected to the remagnetization of rare-earth permanent magnet, make and be contained in mineral salt such as charcoal acid calcium etc. in the water, the magnetic field of the electron spin around its atom, be subjected to the interference in this descaler magnetic field, so that maintaining between the molecule weakens, thereby the lattice that is difficult to form crystallization has stoped the formation of stove dirt, the water that the descaler of process the utility model is handled, contained salinity does not change, but it can not form crystallization, forms floccule and floats in the water, discharges out of the furnace by boiler and guarantees the safe operation of boiler non-scaling.

The dirty device in danger only need be connected on the last water and return pipe of boiler, and the water that enters in the stove is all handled through magnetic field.

Descaler has firm steel casing, has both protected the inner permanent magnetic body, simultaneously inner high-intensity magnetic field is not leaked, and makes the outside interference that is not subjected to high-intensity magnetic field.

Descaler of the present utility model installation site such as Fig. 2 in steam generator system show

For the magnetic of rare-earth magnet in the protection descaler, when descaler is installed, use the red copper row of high conduction, the short circuit of descaler both sides; as shown in Figure 3, simultaneously, during installation; the pipe-line wrapping that descaler will be connected with two ends, for this reason, the flange screwde on should put insulating washer.

The utility model adopts the advantage of China's rare earth resources, utilizes the superpower magnetic property of rare earth magnetic steel, produces extremely strong magnetic field, and volume weight is all much smaller than it thereby ratio external (as the Soviet Union) adopts cast magnetic steel or electromagnetic type descaler that stronger descale effect is arranged.

Adopt descaler of the present utility model, once investment need not safeguarded, promptly reaches the energy-conservation effect of scale removal.Simultaneously, the descaler of the utility model also extends on the scale removal purpose of all heat-exchange apparatus.

The rare earth permanent-magnetic material that the utility model adopts is SmCo magnet steel and Nd-Fe-B magnetic pole magnet steel, in use all obtains good result.

The water mangetizer of the utility model is installed, and not only new dirt is not tied, and old dirt is also loose to come off, and has the thick stove dirt of 2-3mm to be eliminated approximately.

Description of drawings:

Fig. 1 is the utility model structure principle chart, and Fig. 2 is the A-A profile of Fig. 1.

Fig. 3 is descaler installation site figure in steam generator system.

Fig. 4 is the scheme of installation of short circuit copper bar.

Symbol is among the figure: 1 rare-earth permanent magnet, 2 housings, 3 flanges, 4 lumen tube, 5,6 windows radially, 7 central partition plates, 8 yoke gardens ring, 9 rare-earth permanent magnets, 10 pumps, 11 descalers, 12 boilers, 13,14 valves, 15 short circuit copper bars, 16 water pipes.

Claims

1, a kind of rare earth permanent magnet descaler that is used for clean the boiler, comprise flange, lumen tube, housing and rare-earth permanent magnet, the center that it is characterized in that lumen tube [4] is established central partition plate [7] lumen tube is divided into two parts, the tube wall of lumen tube [4] is opened radially, and window [5] and [6] communicate with the space that housing [2] forms, housing [2] is an airtight tank body, fixing yoke garden ring [8] on its end wall, the interior outside of garden ring is bonding rare-earth permanent magnet [1] and [9] respectively, its magnetic direction forms radial magnetic field in housing, by permanent magnet through air-gap, inner chamber tube wall to opposite side permanent magnet forms magnetic circuit through housing again.